Pressure-Wind Triangles of the Pacific Northwest

With inspiration and assistance from Dr. Wolf Read, also known as The Storm King, who utilized pressure-wind triangles in his analysis of historical Pacific Northwest wind storms, I have developed this webpage to study real-time pressure-wind triangles. Using a geostrophic wind calculator developed by Bjarne Hansen in 1988, I have modified the original model and added additional functionality and formulas that incorporate real-time weather station data. This allows for the display of pressure-wind triangles along the West Coast of the United States. The is a beta site that is currently under construction. Additional updates and additions are likely. If you have questions, you can reach me at john@johnrinier.com

The real-time pressure-wind triangles below, updated every 10 minutes, use the Geostrophic formula to convert(rotate) latitudes and longitudes into Cartesian coordinates in order to calculate the geostrophic Uv and Ug vector components. Several SQL stored procedures then iterate through these formulas using weather station data gathered from the internet. With the pressure gradient and bearing derived from each triangle, additional scripts, using the Haversine formula and the Law of Cosines, calculate the respective intersection points. These triangles and points are then plotted on a graphical map. You can click on the triangles and markers to view additional details. Stay tuned for more updates!

North Pacific Satellite Image
rnST_orderGrpColorDTMinOldstationNAMElatlonCentDewPt_cRel_HumidityAltimetermbWind_mphDirectionWindCardinalWindGustWxSummaryWxConditionPrecip1HRMetar
11ALASKAlightblue5/15/2025 11:40:00 AM12PANCAnchorage, Ted Stevens Anchorage International Airport61.17444-149.996117.03.9681.229.631003.535.75310.0NW overcast  METAR PANC 151840Z AUTO 31005KT 10SM OVC075 07/04 A2963
22ALASKAlightblue5/15/2025 11:40:00 AM12PACVCordova, Merle K (Mudhole) Smith Airport60.49167-145.477788.03.9575.8429.711006.130.00.0N light rainlight rain METAR PACV 151840Z AUTO 00000KT 10SM -RA BKN039 OVC050 08/04 A2971
33ALASKAlightblue5/15/2025 11:40:00 AM12PAHOHomer, Homer Airport59.65-151.4833311.01.9153.8129.541000.380.00.0N overcast  METAR PAHO 151840Z AUTO 00000KT 10SM FEW050 OVC095 11/02 A2954
41ALASKA-2lightgreen5/15/2025 11:00:00 AM52CYDBBurwash Airport61.36667-139.033335.0-3.156.1929.651005.6511.51120.0ESE19.56overcast  METAR CYDB 151800Z 12010G17KT 15SM FEW055 OVC070 05/M03 A2965 RMK SC1AS7 SLP074
52ALASKA-2lightgreen5/15/2025 11:40:00 AM12PACVCordova, Merle K (Mudhole) Smith Airport60.49167-145.477788.03.9575.8429.711006.130.00.0N light rainlight rain METAR PACV 151840Z AUTO 00000KT 10SM -RA BKN039 OVC050 08/04 A2971
63ALASKA-2lightgreen5/15/2025 11:40:00 AM12PAJNJuneau, Juneau International Airport58.35472-134.576118.05.9787.1929.821009.8410.36120.0ESE light rainlight rain METAR PAJN 151840Z AUTO 12009KT 10SM -RA FEW037 BKN047 OVC055 08/06 A2982
71CAN_1red5/15/2025 11:00:00 AM52CYVRVancouver International Airport49.18333-123.1666712.06.9571.4730.111019.6416.11130.0SE23.02overcast  CYVR 151800Z 13014G20KT 20SM BKN023 BKN030 OVC069 12/07 A3011 RMK SC6CU1AC1 SLP200
82CAN_1red5/15/2025 11:00:00 AM52CYXXAbbotsford International Airport49.03333-122.3666712.05.9466.7130.121020.046.91200.0SSW overcast  CYXX 151800Z 20006KT 180V260 15SM OVC036 12/06 A3012 RMK SC8 SLP204
93CAN_1red5/15/2025 11:04:00 AM48CYYJVictoria International Airport48.64171-123.4333112.06.9571.4730.111019.6610.36220.0SW light rainlight rain SPECI CYYJ 151804Z 22009KT 30SM -RA BKN036 OVC085 12/07 A3011 RMK SC6AC2 SLP198
101CAN_2lightblue5/15/2025 11:00:00 AM52CWSKSquamish Airport, B. C49.78333-123.1666712.47.0570.09 1018.69.21150.0SSE17.26   METAR CWSK 151800Z AUTO 15008G15KT 12/07 RMK AO1 SLP186 T01240071 56008
112CAN_2lightblue5/15/2025 11:00:00 AM52CYQQComox, B. C.49.71667-124.912.05.9466.7130.071018.313.4560.0ENE light drizzlelight drizzle CYQQ 151800Z 06003KT 20SM -DZ OVC045 12/06 A3007 RMK SC8 DENSITY ALT -307FT PCPN VRY LGT SLP183
123CAN_2lightblue5/15/2025 11:04:00 AM48CYYJVictoria International Airport48.64171-123.4333112.06.9571.4730.111019.6610.36220.0SW light rainlight rain SPECI CYYJ 151804Z 22009KT 30SM -RA BKN036 OVC085 12/07 A3011 RMK SC6AC2 SLP198
131N_CalCoastblue5/15/2025 11:34:00 AM18K4S1Gold Beach Municipal Airport42.41536-124.4249213.07.9571.6630.151021.017.26360.0N25.32clear  METAR K4S1 151834Z AUTO 36015G22KT 8SM CLR 13/08 A3015 RMK AO2
142N_CalCoastblue5/15/2025 11:40:00 AM12KSIYMontague Siskiyou County Airport41.77375-122.4681717.01.9236.4730.091016.480.00.0N clear  METAR KSIY 151840Z AUTO 00000KT 10SM CLR 17/02 A3009
153N_CalCoastblue5/15/2025 11:00:00 AM52NDBC46022EEL RIVER - 17NM WSW OF EUREKA, CA40.716-124.5411.0   1021.220.13350.0N26.84    
161NW_Cal_Interiorgrey5/15/2025 11:40:00 AM12KMFRRogue Valley International Airport42.37503-122.8769617.05.9348.3130.111018.843.45340.0NNW clear  METAR KMFR 151840Z AUTO 34003KT 10SM CLR 17/06 A3011
172NW_Cal_Interiorgrey5/15/2025 11:40:00 AM12KLMTKlamath Falls International Airport42.14703-121.7254814.0-1.135.5830.081014.823.45260.0W clear  METAR KLMT 151840Z AUTO 26003KT 10SM CLR 14/M01 A3008
183NW_Cal_Interiorgrey5/15/2025 11:40:00 AM12KRDDRedding Municipal Airport40.51461-122.2977026.04.0224.2529.961013.826.91320.0NW clear  METAR KRDD 151840Z AUTO 32006KT 10SM CLR 26/04 A2996
191NW_CalCoastlightgrey5/15/2025 11:40:00 AM12KCECCrescent City, Jack McNamara Field Airport41.78028-124.2366713.09.9782.0130.161021.3512.66320.0NW clear  METAR KCEC 151840Z AUTO 32011KT 10SM CLR 13/10 A3016
202NW_CalCoastlightgrey5/15/2025 11:40:00 AM12KRDDRedding Municipal Airport40.51461-122.2977026.04.0224.2529.961013.826.91320.0NW clear  METAR KRDD 151840Z AUTO 32006KT 10SM CLR 26/04 A2996
213NW_CalCoastlightgrey5/15/2025 11:40:00 AM12KUKIUkiah Municipal Airport39.12783-123.2001123.08.9840.9230.011015.560.00.0N clear  METAR KUKI 151840Z AUTO 00000KT 10SM CLR 23/09 A3001
221NW_CalCoast2grey5/15/2025 11:40:00 AM12KUKIUkiah Municipal Airport39.12783-123.2001123.08.9840.9230.011015.560.00.0N clear  METAR KUKI 151840Z AUTO 00000KT 10SM CLR 23/09 A3001
232NW_CalCoast2grey5/15/2025 11:40:00 AM12KSMFSacramento International Airport38.70071-121.5947924.08.9938.5329.981015.22       METAR KSMF 151840Z AUTO 10SM 24/09 A2998
243NW_CalCoast2grey5/15/2025 11:40:00 AM12KSFOSan Francisco, San Francisco International Airport37.61961-122.3655817.011.9772.4230.021016.594.640.0NE    METAR KSFO 151840Z AUTO 04004KT 10SM 17/12 A3002
251NW_OregCoastorange5/15/2025 11:35:00 AM17KASTAstoria, Astoria Regional Airport46.15694-123.8825012.06.9571.4730.171021.686.91230.0SW light rainlight rain METAR KAST 151835Z AUTO 23006KT 9SM -RA SCT026 BKN035 OVC044 12/07 A3017
262NW_OregCoastorange5/15/2025 11:40:00 AM12KSLESalem - McNary Field44.90493-123.0009614.02.9247.4630.171021.680.00.0N broken  METAR KSLE 151840Z AUTO 00000KT 10SM SCT045 BKN120 14/03 A3017
273NW_OregCoastorange5/15/2025 11:40:00 AM12KOTHSouthwest Oregon Regional Airport43.41948-124.2437014.06.9462.7230.21022.6913.81330.0NNW clear  METAR KOTH 151840Z AUTO 33012KT 10SM CLR 14/07 A3020
281NW_WashCoastblue5/15/2025 11:00:00 AM52NDBC46087NEAH BAY - 6 NM NORTH OF CAPE FLATTERY, WA (TRAFFIC SEPARATION LIGHTED BUOY)48.493-124.7279.4   1020.88.95230.0SW11.18    
292NW_WashCoastblue5/15/2025 11:40:00 AM12KCLMPort Angeles Fairchild International Airport48.12194-123.5066111.05.9571.2730.141020.770.00.0N light rainlight rain METAR KCLM 151840Z AUTO 00000KT 10SM -RA OVC042 11/06 A3014
303NW_WashCoastblue5/15/2025 11:40:00 AM12KHQMHoquiam, Bowerman Airport46.97111-123.9212.05.9466.7130.161021.3410.36260.0W light rainlight rain METAR KHQM 151840Z AUTO 26009KT 10SM -RA OVC034 12/06 A3016
311OR_NewRosbGoldBbrown5/15/2025 11:35:00 AM17KONPNewport, Newport Municipal Airport44.58028-124.0580612.06.9571.4730.211023.083.45270.0W broken  METAR KONP 151835Z AUTO 27003KT 10SM SCT042 BKN110 12/07 A3021 RMK AO2
322OR_NewRosbGoldBbrown5/15/2025 11:40:00 AM12KRBGRoseburg Regional Airport43.23368-123.3577014.05.9458.5530.171021.660.00.0N broken  METAR KRBG 151840Z AUTO 00000KT 10SM BKN032 14/06 A3017
333OR_NewRosbGoldBbrown5/15/2025 11:34:00 AM18K4S1Gold Beach Municipal Airport42.41536-124.4249213.07.9571.6630.151021.017.26360.0N25.32clear  METAR K4S1 151834Z AUTO 36015G22KT 8SM CLR 13/08 A3015 RMK AO2
341OR_NW_AstPortEuggreen5/15/2025 11:35:00 AM17KASTAstoria, Astoria Regional Airport46.15694-123.8825012.06.9571.4730.171021.686.91230.0SW light rainlight rain METAR KAST 151835Z AUTO 23006KT 9SM -RA SCT026 BKN035 OVC044 12/07 A3017
352OR_NW_AstPortEuggreen5/15/2025 11:40:00 AM12KPDXPortland, Portland International Airport45.59578-122.6091714.03.9250.9330.181022.015.75200.0SSW overcast  METAR KPDX 151840Z AUTO 20005KT 10SM FEW042 OVC055 14/04 A3018
363OR_NW_AstPortEuggreen5/15/2025 11:40:00 AM12KEUGEugene, Mahlon Sweet Field44.13333-123.2144414.04.9354.6230.181022.025.75360.0N broken  METAR KEUG 151840Z AUTO 36005KT 10SM SCT038 BKN120 14/05 A3018
371OR_NW_AstPortSalred5/15/2025 11:35:00 AM17KASTAstoria, Astoria Regional Airport46.15694-123.8825012.06.9571.4730.171021.686.91230.0SW light rainlight rain METAR KAST 151835Z AUTO 23006KT 9SM -RA SCT026 BKN035 OVC044 12/07 A3017
382OR_NW_AstPortSalred5/15/2025 11:40:00 AM12KPDXPortland, Portland International Airport45.59578-122.6091714.03.9250.9330.181022.015.75200.0SSW overcast  METAR KPDX 151840Z AUTO 20005KT 10SM FEW042 OVC055 14/04 A3018
393OR_NW_AstPortSalred5/15/2025 11:40:00 AM12KSLESalem - McNary Field44.90493-123.0009614.02.9247.4630.171021.680.00.0N broken  METAR KSLE 151840Z AUTO 00000KT 10SM SCT045 BKN120 14/03 A3017
401OR_NW_NewpEugNorthbyellow5/15/2025 11:35:00 AM17KONPNewport, Newport Municipal Airport44.58028-124.0580612.06.9571.4730.211023.083.45270.0W broken  METAR KONP 151835Z AUTO 27003KT 10SM SCT042 BKN110 12/07 A3021 RMK AO2
412OR_NW_NewpEugNorthbyellow5/15/2025 11:40:00 AM12KEUGEugene, Mahlon Sweet Field44.13333-123.2144414.04.9354.6230.181022.025.75360.0N broken  METAR KEUG 151840Z AUTO 36005KT 10SM SCT038 BKN120 14/05 A3018
423OR_NW_NewpEugNorthbyellow5/15/2025 11:40:00 AM12KOTHSouthwest Oregon Regional Airport43.41948-124.2437014.06.9462.7230.21022.6913.81330.0NNW clear  METAR KOTH 151840Z AUTO 33012KT 10SM CLR 14/07 A3020
431SanFValleygreen5/15/2025 11:00:00 AM52NDBC46022EEL RIVER - 17NM WSW OF EUREKA, CA40.716-124.5411.0   1021.220.13350.0N26.84    
442SanFValleygreen5/15/2025 11:40:00 AM12KMYVMarysville, Yuba County Airport39.09778-121.5697223.08.9840.9229.991015.514.6290.0WNW clear  METAR KMYV 151840Z AUTO 29004KT 10SM CLR 23/09 A2999
453SanFValleygreen5/15/2025 11:40:00 AM12KSJCSan Jose, San Jose International Airport37.35917-121.9241722.05.9635.4230.011016.20.00.0N broken  METAR KSJC 151840Z AUTO 00000KT 10SM FEW050 SCT080 BKN110 22/06 A3001
461SW_OreCoastmagenta5/15/2025 11:40:00 AM12KOTHSouthwest Oregon Regional Airport43.41948-124.2437014.06.9462.7230.21022.6913.81330.0NNW clear  METAR KOTH 151840Z AUTO 33012KT 10SM CLR 14/07 A3020
472SW_OreCoastmagenta5/15/2025 11:40:00 AM12KRBGRoseburg Regional Airport43.23368-123.3577014.05.9458.5530.171021.660.00.0N broken  METAR KRBG 151840Z AUTO 00000KT 10SM BKN032 14/06 A3017
483SW_OreCoastmagenta5/15/2025 11:40:00 AM12KCECCrescent City, Jack McNamara Field Airport41.78028-124.2366713.09.9782.0130.161021.3512.66320.0NW clear  METAR KCEC 151840Z AUTO 32011KT 10SM CLR 13/10 A3016
491SW_OreCoast2white5/15/2025 11:35:00 AM17KONPNewport, Newport Municipal Airport44.58028-124.0580612.06.9571.4730.211023.083.45270.0W broken  METAR KONP 151835Z AUTO 27003KT 10SM SCT042 BKN110 12/07 A3021 RMK AO2
502SW_OreCoast2white5/15/2025 11:40:00 AM12KEUGEugene, Mahlon Sweet Field44.13333-123.2144414.04.9354.6230.181022.025.75360.0N broken  METAR KEUG 151840Z AUTO 36005KT 10SM SCT038 BKN120 14/05 A3018
513SW_OreCoast2white5/15/2025 11:40:00 AM12KCECCrescent City, Jack McNamara Field Airport41.78028-124.2366713.09.9782.0130.161021.3512.66320.0NW clear  METAR KCEC 151840Z AUTO 32011KT 10SM CLR 13/10 A3016
521WA_Cana_EptVanOlmpviolet5/15/2025 11:00:00 AM52CWEBEstevan Point, B. C.49.38333-126.558.67.7994.71 1019.49.21120.0ESE   0.02METAR CWEB 151800Z AUTO 12008KT 09/08 RMK AO1 4PAST HR 6004 SLP194 P0002 T00860078 50028
532WA_Cana_EptVanOlmpviolet5/15/2025 11:00:00 AM52CYVRVancouver International Airport49.18333-123.1666712.06.9571.4730.111019.6416.11130.0SE23.02overcast  CYVR 151800Z 13014G20KT 20SM BKN023 BKN030 OVC069 12/07 A3011 RMK SC6CU1AC1 SLP200
543WA_Cana_EptVanOlmpviolet5/15/2025 11:40:00 AM12KOLMOlympia, Olympia Airport46.97333-122.9033312.03.9258.0330.161021.46.91230.0SW overcast  METAR KOLM 151840Z AUTO 23006KT 10SM OVC034 12/04 A3016
551WA_NW_QuilSeaPortblue5/15/2025 11:40:00 AM12KUILQuillayute, Quillayute State Airport47.93750-124.55500   30.14        METAR KUIL 151840Z AUTO A3014
562WA_NW_QuilSeaPortblue5/15/2025 11:40:00 AM12KSEASeattle, Seattle-Tacoma International Airport47.44472-122.3136112.03.9258.0330.151021.119.21190.0S overcast  METAR KSEA 151840Z AUTO 19008KT 10SM SCT036 OVC042 12/04 A3015
573WA_NW_QuilSeaPortblue5/15/2025 11:40:00 AM12KPDXPortland, Portland International Airport45.59578-122.6091714.03.9250.9330.181022.015.75200.0SSW overcast  METAR KPDX 151840Z AUTO 20005KT 10SM FEW042 OVC055 14/04 A3018
581WA_OR_HoqCePortNewPdarkblue5/15/2025 11:40:00 AM12KHQMHoquiam, Bowerman Airport46.97111-123.9212.05.9466.7130.161021.3410.36260.0W light rainlight rain METAR KHQM 151840Z AUTO 26009KT 10SM -RA OVC034 12/06 A3016
592WA_OR_HoqCePortNewPdarkblue5/15/2025 11:40:00 AM12KPDXPortland, Portland International Airport45.59578-122.6091714.03.9250.9330.181022.015.75200.0SSW overcast  METAR KPDX 151840Z AUTO 20005KT 10SM FEW042 OVC055 14/04 A3018
603WA_OR_HoqCePortNewPdarkblue5/15/2025 11:35:00 AM17KONPNewport, Newport Municipal Airport44.58028-124.0580612.06.9571.4730.211023.083.45270.0W broken  METAR KONP 151835Z AUTO 27003KT 10SM SCT042 BKN110 12/07 A3021 RMK AO2
611WA_QuilSeaAstlightblue5/15/2025 11:40:00 AM12KUILQuillayute, Quillayute State Airport47.93750-124.55500   30.14        METAR KUIL 151840Z AUTO A3014
622WA_QuilSeaAstlightblue5/15/2025 11:40:00 AM12KSEASeattle, Seattle-Tacoma International Airport47.44472-122.3136112.03.9258.0330.151021.119.21190.0S overcast  METAR KSEA 151840Z AUTO 19008KT 10SM SCT036 OVC042 12/04 A3015
633WA_QuilSeaAstlightblue5/15/2025 11:35:00 AM17KASTAstoria, Astoria Regional Airport46.15694-123.8825012.06.9571.4730.171021.686.91230.0SW light rainlight rain METAR KAST 151835Z AUTO 23006KT 9SM -RA SCT026 BKN035 OVC044 12/07 A3017
RowDTMinOldSTIDNAMELATLONTemp_cDewPt_cRel_HumidityAltimeterSLPres_mbWind_mphDirectionWindCardinalWindGustWxSummaryWxConditionPrecip1HRMetar
15/15/2025 11:00:00 AM52CYDBBurwash Airport61.36667-139.033335.0-3.156.1929.651005.6511.51120.0ESE19.56overcast  METAR CYDB 151800Z 12010G17KT 15SM FEW055 OVC070 05/M03 A2965 RMK SC1AS7 SLP074
25/15/2025 11:40:00 AM12PANCAnchorage, Ted Stevens Anchorage International Airport61.17444-149.996117.03.9681.229.631003.535.75310.0NW overcast  METAR PANC 151840Z AUTO 31005KT 10SM OVC075 07/04 A2963
35/15/2025 11:40:00 AM12PACVCordova, Merle K (Mudhole) Smith Airport60.49167-145.477788.03.9575.8429.711006.130.00.0N light rainlight rain METAR PACV 151840Z AUTO 00000KT 10SM -RA BKN039 OVC050 08/04 A2971
45/15/2025 11:40:00 AM12PAHOHomer, Homer Airport59.65-151.4833311.01.9153.8129.541000.380.00.0N overcast  METAR PAHO 151840Z AUTO 00000KT 10SM FEW050 OVC095 11/02 A2954
55/15/2025 11:40:00 AM12PAJNJuneau, Juneau International Airport58.35472-134.576118.05.9787.1929.821009.8410.36120.0ESE light rainlight rain METAR PAJN 151840Z AUTO 12009KT 10SM -RA FEW037 BKN047 OVC055 08/06 A2982
65/15/2025 11:40:00 AM12PAPHPort Heiden, Port Heiden Airport56.95-158.633336.06.0100.029.34993.6710.36210.0SSW light rainlight rain0.01METAR PAPH 151840Z AUTO 21009KT 10SM -RA FEW012 BKN028 OVC036 06/06 A2934 RMK P0001
75/15/2025 11:00:00 AM52CWSKSquamish Airport, B. C49.78333-123.1666712.47.0570.09 1018.69.21150.0SSE17.26   METAR CWSK 151800Z AUTO 15008G15KT 12/07 RMK AO1 SLP186 T01240071 56008
85/15/2025 11:00:00 AM52CYQQComox, B. C.49.71667-124.912.05.9466.7130.071018.313.4560.0ENE light drizzlelight drizzle CYQQ 151800Z 06003KT 20SM -DZ OVC045 12/06 A3007 RMK SC8 DENSITY ALT -307FT PCPN VRY LGT SLP183
95/15/2025 11:00:00 AM52CWEBEstevan Point, B. C.49.38333-126.558.67.7994.71 1019.49.21120.0ESE   0.02METAR CWEB 151800Z AUTO 12008KT 09/08 RMK AO1 4PAST HR 6004 SLP194 P0002 T00860078 50028
105/15/2025 11:00:00 AM52CYVRVancouver International Airport49.18333-123.1666712.06.9571.4730.111019.6416.11130.0SE23.02overcast  CYVR 151800Z 13014G20KT 20SM BKN023 BKN030 OVC069 12/07 A3011 RMK SC6CU1AC1 SLP200
115/15/2025 11:00:00 AM52CYXXAbbotsford International Airport49.03333-122.3666712.05.9466.7130.121020.046.91200.0SSW overcast  CYXX 151800Z 20006KT 180V260 15SM OVC036 12/06 A3012 RMK SC8 SLP204
125/15/2025 11:04:00 AM48CYYJVictoria International Airport48.64171-123.4333112.06.9571.4730.111019.6610.36220.0SW light rainlight rain SPECI CYYJ 151804Z 22009KT 30SM -RA BKN036 OVC085 12/07 A3011 RMK SC6AC2 SLP198
135/15/2025 11:00:00 AM52NDBC46087NEAH BAY - 6 NM NORTH OF CAPE FLATTERY, WA (TRAFFIC SEPARATION LIGHTED BUOY)48.493-124.7279.4   1020.88.95230.0SW11.18    
145/15/2025 11:40:00 AM12KOMKOmak Airport48.46116-119.5208617.0-1.0829.3629.961013.793.45280.0W clear  METAR KOMK 151840Z AUTO 28003KT 10SM CLR 17/M01 A2996
155/15/2025 11:40:00 AM12KCLMPort Angeles Fairchild International Airport48.12194-123.5066111.05.9571.2730.141020.770.00.0N light rainlight rain METAR KCLM 151840Z AUTO 00000KT 10SM -RA OVC042 11/06 A3014
165/15/2025 11:40:00 AM12KUILQuillayute, Quillayute State Airport47.93750-124.55500   30.14        METAR KUIL 151840Z AUTO A3014
175/15/2025 11:40:00 AM12KSFFSpokane, Felts Field47.68556-117.3202814.00.9141.1430.011015.4910.36210.0SSW broken  METAR KSFF 151840Z AUTO 21009KT 10SM BKN110 14/01 A3001
185/15/2025 11:40:00 AM12KSEASeattle, Seattle-Tacoma International Airport47.44472-122.3136112.03.9258.0330.151021.119.21190.0S overcast  METAR KSEA 151840Z AUTO 19008KT 10SM SCT036 OVC042 12/04 A3015
195/15/2025 11:40:00 AM12KOLMOlympia, Olympia Airport46.97333-122.9033312.03.9258.0330.161021.46.91230.0SW overcast  METAR KOLM 151840Z AUTO 23006KT 10SM OVC034 12/04 A3016
205/15/2025 11:40:00 AM12KHQMHoquiam, Bowerman Airport46.97111-123.9212.05.9466.7130.161021.3410.36260.0W light rainlight rain METAR KHQM 151840Z AUTO 26009KT 10SM -RA OVC034 12/06 A3016
215/15/2025 11:35:00 AM17KCLSChehalis-Centralia Airport46.67700-122.9827012.07.9676.5230.171021.734.6   overcast  METAR KCLS 151835Z AUTO VRB04KT 10SM FEW031 OVC037 12/08 A3017 RMK AO2
225/15/2025 11:40:00 AM12KYKMYakima Air Terminal - McAllister Field46.56402-120.5348418.00.9331.8830.011015.564.620.0NNE clear  METAR KYKM 151840Z AUTO 02004KT 10SM CLR 18/01 A3001
235/15/2025 11:35:00 AM17KASTAstoria, Astoria Regional Airport46.15694-123.8825012.06.9571.4730.171021.686.91230.0SW light rainlight rain METAR KAST 151835Z AUTO 23006KT 9SM -RA SCT026 BKN035 OVC044 12/07 A3017
245/15/2025 11:40:00 AM12KPDXPortland, Portland International Airport45.59578-122.6091714.03.9250.9330.181022.015.75200.0SSW overcast  METAR KPDX 151840Z AUTO 20005KT 10SM FEW042 OVC055 14/04 A3018
255/15/2025 11:40:00 AM12KTTDPortland, Portland-Troutdale Airport45.55111-122.4088913.03.9254.3530.181022.023.45270.0W overcast  METAR KTTD 151840Z AUTO 27003KT 10SM OVC055 13/04 A3018
265/15/2025 11:40:00 AM12KHIOPortland-Hillsboro Airport45.54765-122.9556813.03.9254.3530.171021.710.00.0N broken  METAR KHIO 151840Z AUTO 00000KT 10SM BKN036 BKN049 13/04 A3017
275/15/2025 11:50:00 AM2AS436N7NKE Forest Grove45.54151-123.1319413.338.7574.030.161021.361.024.0NNE2.0    
285/15/2025 11:35:00 AM17KTMKTillamook, Tillamook Airport45.41806-123.8144412.07.9676.5230.191022.360.00.0N light rainlight rain METAR KTMK 151835Z AUTO 00000KT 10SM -RA SCT029 OVC041 12/08 A3019 RMK AO2
295/15/2025 11:40:00 AM12KSLESalem - McNary Field44.90493-123.0009614.02.9247.4630.171021.680.00.0N broken  METAR KSLE 151840Z AUTO 00000KT 10SM SCT045 BKN120 14/03 A3017
305/15/2025 11:35:00 AM17KONPNewport, Newport Municipal Airport44.58028-124.0580612.06.9571.4730.211023.083.45270.0W broken  METAR KONP 151835Z AUTO 27003KT 10SM SCT042 BKN110 12/07 A3021 RMK AO2
315/15/2025 11:40:00 AM12KEUGEugene, Mahlon Sweet Field44.13333-123.2144414.04.9354.6230.181022.025.75360.0N broken  METAR KEUG 151840Z AUTO 36005KT 10SM SCT038 BKN120 14/05 A3018
325/15/2025 11:40:00 AM12KOTHSouthwest Oregon Regional Airport43.41948-124.2437014.06.9462.7230.21022.6913.81330.0NNW clear  METAR KOTH 151840Z AUTO 33012KT 10SM CLR 14/07 A3020
335/15/2025 11:40:00 AM12KRBGRoseburg Regional Airport43.23368-123.3577014.05.9458.5530.171021.660.00.0N broken  METAR KRBG 151840Z AUTO 00000KT 10SM BKN032 14/06 A3017
345/15/2025 11:34:00 AM18K4S1Gold Beach Municipal Airport42.41536-124.4249213.07.9571.6630.151021.017.26360.0N25.32clear  METAR K4S1 151834Z AUTO 36015G22KT 8SM CLR 13/08 A3015 RMK AO2
355/15/2025 11:40:00 AM12KMFRRogue Valley International Airport42.37503-122.8769617.05.9348.3130.111018.843.45340.0NNW clear  METAR KMFR 151840Z AUTO 34003KT 10SM CLR 17/06 A3011
365/15/2025 11:40:00 AM12KLMTKlamath Falls International Airport42.14703-121.7254814.0-1.135.5830.081014.823.45260.0W clear  METAR KLMT 151840Z AUTO 26003KT 10SM CLR 14/M01 A3008
375/15/2025 11:40:00 AM12KCECCrescent City, Jack McNamara Field Airport41.78028-124.2366713.09.9782.0130.161021.3512.66320.0NW clear  METAR KCEC 151840Z AUTO 32011KT 10SM CLR 13/10 A3016
385/15/2025 11:40:00 AM12KSIYMontague Siskiyou County Airport41.77375-122.4681717.01.9236.4730.091016.480.00.0N clear  METAR KSIY 151840Z AUTO 00000KT 10SM CLR 17/02 A3009
395/15/2025 11:40:00 AM12KACVArcata / Eureka, Arcata Airport40.97806-124.1086112.08.9781.8830.141020.729.21270.0W clear  METAR KACV 151840Z AUTO 27008KT 10SM CLR 12/09 A3014
405/15/2025 11:00:00 AM52NDBC46022EEL RIVER - 17NM WSW OF EUREKA, CA40.716-124.5411.0   1021.220.13350.0N26.84    
415/15/2025 11:40:00 AM12KRDDRedding Municipal Airport40.51461-122.2977026.04.0224.2529.961013.826.91320.0NW clear  METAR KRDD 151840Z AUTO 32006KT 10SM CLR 26/04 A2996
425/15/2025 11:40:00 AM12KUKIUkiah Municipal Airport39.12783-123.2001123.08.9840.9230.011015.560.00.0N clear  METAR KUKI 151840Z AUTO 00000KT 10SM CLR 23/09 A3001
435/15/2025 11:40:00 AM12KMYVMarysville, Yuba County Airport39.09778-121.5697223.08.9840.9229.991015.514.6290.0WNW clear  METAR KMYV 151840Z AUTO 29004KT 10SM CLR 23/09 A2999
445/15/2025 11:40:00 AM12KSMFSacramento International Airport38.70071-121.5947924.08.9938.5329.981015.22       METAR KSMF 151840Z AUTO 10SM 24/09 A2998
455/15/2025 11:40:00 AM12KSFOSan Francisco, San Francisco International Airport37.61961-122.3655817.011.9772.4230.021016.594.640.0NE    METAR KSFO 151840Z AUTO 04004KT 10SM 17/12 A3002
465/15/2025 11:40:00 AM12KSJCSan Jose, San Jose International Airport37.35917-121.9241722.05.9635.4230.011016.20.00.0N broken  METAR KSJC 151840Z AUTO 00000KT 10SM FEW050 SCT080 BKN110 22/06 A3001
GrpCentroid_LatCentroid_LonStation_ListUgVgScalarDirectionDirection_BearingFromLowToCentroidWindDirectionGeostrophicDirectionPlus60_groundWindValleyDirection_BearingToLowFromCentroidSpeed_KnotsSpeed_MPHCentriodPressureCentriodPressureGradientPG_Station12PG_Station13PG_Station23Distance12Distance13Distance23TriadAreaMinOld0pressure_gradient
ALASKA60.4387033333333-148.98574PANC,PACV,PAHO,-10.027187562955412.071659714441215.692974819451950.2950.29140.29110.29230.2930.504702603114435.10424309262471003.346666666677.97516607385827E-06-1.01499271496871E-051.67516881276463E-051.66304182469965E-05256159.474019491188040.750042461345751.97776751423632653691.31418-2.46201272796983E-05
ALASKA-260.07102-139.69574CYDB,PACV,PAJN,11.04684781561631.3355140572382411.1272837861927173.11173.11263.11233.11353.1121.629709254202524.8910661926861007.20666666667-5.82946981550331E-06-1.32904027437717E-06-1.00520524277454E-05-5.62521490393049E-06361162.870120653416830.297107772659530.3581037867798606590.224538-1.75640685984273E-05
CAN_148.95279-122.988883333333CYVR,CYXX,CYYJ,2.080232825182415.471890287682515.85396890386348110.82110.82200.82170.82290.8211.379205186698413.09497719980841019.78-1.87661528780471E-07-6.6069090830787E-06-3.16126550720704E-074.25335573416798E-0660542.682662980963265.802743882589341.22226067071913532482.6016476-7.99869871750007E-06
CAN_249.38057-123.833326666667CWSK,CYQQ,CYYJ,6.263342615273032.024251313392266.58232892645646162.09162.09252.09222.09342.0912.795023801895414.72427486874751018.85666666667-5.1318853221586E-062.32587377320046E-06-8.25907558151365E-06-8.43351750928549E-06124684.324377996128343.661410801160075.5554860267839914976.3067776-9.03970529519401E-06
N_CalCoast41.6350366666667-123.81103K4S1,KSIY,NDBC46022,-0.442208685971545-24.542299139606124.546282724271391.03271.031.03331.0391.0347.714156374464454.90856167723141019.56-6.95924073505926E-072.56213751682756E-05-1.05762435638769E-06-2.25559861689789E-05176415.199040396189103.057992253209257.08876747715649303293.136241-2.93683980992369E-05
NW_Cal_Interior41.67889-122.300046666667KMFR,KLMT,KRDD,-11.2919720387314-29.012997004533731.132982955518111.27291.2721.27351.27111.2760.517677313081569.64261489251631015.826666666672.01624430425542E-054.10035194369133E-052.36440508382763E-055.33050176339262E-0698040.3647102791212315.564466363187599.6002604359195914506.8057718-3.64665347451839E-05
NW_CalCoast40.47424-123.244826666667KCEC,KRDD,KUKI,-4.00855971636813-20.986115234429521.3655232473358100.81280.8110.81340.81100.8141.531254597569547.79339357289521016.911.66722509335945E-053.5066073616405E-051.88271933338023E-05-1.00989042988554E-05214737.471961424307533.889802079172295.91929069117893559612.114118-2.43166110268785E-05
NW_CalCoast238.4827166666667-122.386826666667KUKI,KSMF,KSFO,5.76285895904357-3.66044964028466.8271102928609932.42212.42302.42272.4232.4213.270840711745915.27183609851251015.79-4.40967857957423E-062.31754260024944E-06-5.63743667459611E-06-9.94627864379919E-06146707.119844703182707.152107175137739.9577332479945983033.8533918-7.42391026570911E-06
NW_OregCoast44.8271166666667-123.709053333333KAST,KSLE,KOTH,3.27948877084679-6.965991289649517.6993558980984264.79244.79334.79304.7964.7914.966350523668917.22299718269231022.01666666667-3.09228155188448E-060-3.30538855277152E-06-5.24590559192032E-06155146.59195688305561.65602774192531.1049355512575457842.75620.5-9.80959256942358E-06
NW_WashCoast47.8620166666667-124.051203333333NDBC46087,KCLM,KHQM,2.10242120355393-1.148614105335382.3957231225933728.65208.65298.65268.6528.654.656913186627285.359088881854021020.97-2.63181325198426E-063.02452688087768E-07-3.0071843108281E-06-4.33116136970459E-0699189.0671882353179569.971170572131604.4246208446401752914.9006238-3.23596930738222E-06
OR_NewRosbGoldB43.4097733333333-123.946893333333KONP,KRBG,K4S1,-15.2197737510214-2.9805892700237315.5088821463334168.92348.9278.9248.92168.9230.146855075191834.69243882841911021.913333333337.87764554775525E-068.88521178453086E-068.58044366319684E-065.2443907759346E-06159816.111808637242411.707557911125848.745487969068698401.2591223.5-1.92822861321208E-05
OR_NW_AstPortEug45.29535-123.23537KAST,KPDX,KEUG,0.4835146246358571.642544128539951.71223176189376106.4106.4196.4166.4286.43.328312272535713.830159717450621021.90333333333-1.3155610561232E-06-2.83017770312328E-06-1.4724315973607E-06-5.90392931344717E-08116600.452203345230910.556802396169378.7216798719481640465.9265220.5-2.19913843926991E-06
OR_NW_AstPortSal45.55255-123.16421KAST,KPDX,KSLE,-0.9765818760095051.994282497873742.2205573268609463.9163.91153.91123.91243.914.316418120106644.96725350674831021.790-2.83017770312328E-0603.99169996548367E-06116600.452203345155146.5919568882671.54416752724733073224.6285120.5-2.86434121447756E-06
OR_NW_NewpEugNorthb44.0443633333333-123.838733333333KONP,KEUG,KOTH,-4.26173471394102-11.914883167748512.6541227935052109.68289.6819.68349.68109.6824.597646842630228.30651344170341022.596666666672.37940568030539E-061.27047950620632E-053.00328191943631E-06-5.85040697326593E-0683433.0656119896129857.938902119114521.9474579534709436487.0872520.5-1.59082946438818E-05
SanFValley39.05765-122.677963333333NDBC46022,KMYV,KSJC,0.264784367402483-8.294987853966458.2992128698251788.17268.17358.17328.1788.1716.132379191748318.56484123702671017.636666666671.06126824677288E-051.83219634493514E-051.14671537918075E-05-3.52608198737739E-06310556.235729279436027.988355069195684.61608948727047695409.591138-9.2384276080457E-06
SW_OreCoast42.8111466666667-123.946023333333KOTH,KRBG,KCEC,-5.89348841445089-10.033506218177611.6363418960374120.43300.4330.430.43120.4322.619239055095826.0297986409221021.96.18122299972688E-061.38168460529994E-057.35553281852234E-061.75291095890048E-0674546.6799043045182175.789716508176848.6861388846528463550.6897418-1.42735179127807E-05
SW_OreCoast243.4979633333333-123.83639KONP,KEUG,KCEC,-5.10831364333599-9.8963692974413111.1370100812575117.3297.327.3357.3117.321.648615659252924.91282333116821022.155.1691624219815E-061.27047950620632E-055.55344569619371E-062.44166679569572E-0683433.0656119896311518.306766865274402.71587470810833889994.053620.5-1.38724370771343E-05
WA_Cana_EptVanOlmp48.51333-124.206666666667CWEB,CYVR,KOLM,4.286727464813730.1627785857409944.28981692214996177.83177.83267.83237.83357.838.338736978650339.596063065834141020.14666666667-4.58162288123138E-06-9.74566450296265E-07-5.25760271031973E-06-7.14319842388009E-06246263.351182509380401.508100709246388.22773230429771166614.945258-5.84750066103858E-06
WA_NW_QuilSeaPort46.9926666666667-123.15926KUIL,KSEA,KPDX,              -4.35364125062814E-06176385.396788192299428.353909399206723.50985974117797855673.629218 
WA_OR_HoqCePortNewP45.7157233333333-123.529076666667KHQM,KPDX,KONP,5.73709069047184-2.801436920459226.3845327479785626.03206.03296.03266.0326.0312.410538790613614.28181668526321022.14333333333-5.71304103922704E-06-3.66077423893509E-06-6.54323102748337E-06-6.67966731256027E-06183021.392817412265923.668703049160187.61862405914371250966.30220.5-8.28063351985875E-06
WA_QuilSeaAst47.17972-123.583703333333KUIL,KSEA,KAST,              -3.05877584607325E-06176385.396788192204330.949117884186349.05880133315291714889.529520.5 
Group1Lat1Lon1Bearing1Group2Lat2Lon2Bearing2Intersection_LatitudeIntersection_LongitudeDistance_from_Station1_kmDistance_from_Station2_kmCentroid_Pres_Grp1Centroid_Pres_Grp2Pressure_at_Intersection_Grp1Pressure_at_Intersection_Grp2
CAN_249.38057-123.833326666667342.09WA_Cana_EptVanOlmp48.51333-124.206666666667357.8350.3300269708713-124.314486253564111.007966720988202.0516050650651018.856666666671020.146666666671017.853187362091018.96516977248
CAN_148.95279-122.988883333333290.82WA_Cana_EptVanOlmp48.51333-124.206666666667357.8349.2589031858012-124.24995317036397.8542605848982.92071917999781019.781020.146666666671018.997293251361019.66178770645
OR_NewRosbGoldB43.4097733333333-123.946893333333168.92SW_OreCoast42.8111466666667-123.946023333333120.4342.733622139924-123.76666644369976.556236166326616.98022696476331021.913333333331021.91020.437154082381021.65763242626
OR_NW_AstPortEug45.29535-123.23537286.4OR_NW_AstPortSal45.55255-123.16421243.9145.3818320942093-123.65747963490134.347142702435242.87295744395411021.903333333331021.791021.827799211541021.66719722101
N_CalCoast41.6350366666667-123.8110391.03OR_NewRosbGoldB43.4097733333333-123.946893333333168.9241.6301289308328-123.48095576527127.4232410565617201.4311056179851019.561021.913333333331018.754623339481018.0292811189
NW_CalCoast40.47424-123.244826666667100.81OR_NewRosbGoldB43.4097733333333-123.946893333333168.9240.4662938101535-123.1902140544534.70098675704719333.0508279688171016.911021.913333333331016.795687933591015.4913519719
CAN_148.95279-122.988883333333290.82NW_WashCoast47.8620166666667-124.05120333333328.6548.9839667843764-123.1140838171819.76949352405692142.5609860509271019.781020.971019.701856764681020.50867702471
N_CalCoast41.6350366666667-123.8110391.03NW_Cal_Interior41.67889-122.300046666667111.2741.5970558651745-122.02010947151148.859325032124.96664072846111019.561015.826666666671015.188240081671014.91621979507
NW_CalCoast238.4827166666667-122.38682666666732.42SanFValley39.05765-122.67796333333388.1739.0743256330011-121.90202790113178.020063766650766.97985455206641015.791017.636666666671015.210786047671017.01787812919
N_CalCoast41.6350366666667-123.8110391.03SW_OreCoast42.8111466666667-123.946023333333120.4341.5702832483238-121.197814137503217.280098944641264.9823156602511019.561021.91013.178831555151018.11777017085
NW_CalCoast40.47424-123.244826666667100.81NW_CalCoast238.4827166666667-122.38682666666732.4240.1271540693604-121.014477322498192.932581503807217.5426342781441016.911015.791012.218533461161014.17498300415
NW_Cal_Interior41.67889-122.300046666667111.27NW_CalCoast238.4827166666667-122.38682666666732.4241.0467490493892-120.211469234569187.838631494056340.1713906495561015.826666666671015.791008.97684268481013.26459812086
NW_CalCoast238.4827166666667-122.38682666666732.42SW_OreCoast42.8111466666667-123.946023333333120.4341.0815074192314-120.180582183311344.821197008774365.7700524359771015.791021.91013.230078375691016.6791746046
NW_Cal_Interior41.67889-122.300046666667111.27SW_OreCoast42.8111466666667-123.946023333333120.4340.9560945223084-119.924933625794213.897872553393391.3394300008941015.826666666671021.91008.026552465281016.3142096359
N_CalCoast41.6350366666667-123.8110391.03NW_CalCoast238.4827166666667-122.38682666666732.4241.5110446299404-119.795546196666334.110702548092402.3748445469871019.561015.791009.747703878351012.8028052609
NW_CalCoast238.4827166666667-122.38682666666732.42SW_OreCoast243.4979633333333-123.83639117.341.7709612343774-119.559497204734437.285686156525398.8238721887421015.791022.151012.543630305491016.6173409282
N_CalCoast41.6350366666667-123.8110391.03SW_OreCoast243.4979633333333-123.83639117.341.461711446746-118.855347373801412.577208243215466.6770877358011019.561022.151007.443268301641015.67605146504
NW_CalCoast238.4827166666667-122.38682666666732.42OR_NW_NewpEugNorthb44.0443633333333-123.838733333333109.6842.602482314471-118.788173162372549.420161151718438.5647739119561015.791022.596666666671011.711154025441015.61984902285
NW_CalCoast40.47424-123.244826666667100.81SW_OreCoast42.8111466666667-123.946023333333120.4339.3462266948603-116.817025644965561.968198441294710.2258446355171016.911021.91003.244837909031011.76257868448
SanFValley39.05765-122.67796333333388.17SW_OreCoast42.8111466666667-123.946023333333120.4339.0408663056401-116.260471612033553.776007092644768.9597140937121017.636666666671021.91012.520647114071010.92423974668
NW_CalCoast40.47424-123.244826666667100.81SanFValley39.05765-122.67796333333388.1739.0051194897297-115.223993275248704.351996256407643.3544159387221016.911017.63666666667999.7825464810281011.6930834687
N_CalCoast41.6350366666667-123.8110391.03OR_NW_NewpEugNorthb44.0443633333333-123.838733333333109.6841.1284015205566-114.464955514338780.997441585179832.0310169364761019.561022.59666666667996.6233562210411009.36047209639
NW_Cal_Interior41.67889-122.300046666667111.27SanFValley39.05765-122.67796333333388.1738.9639648321344-114.267722301476744.091215699151726.0909976865091015.826666666671017.63666666667988.6922384957871010.92872754769
SanFValley39.05765-122.67796333333388.17SW_OreCoast243.4979633333333-123.83639117.338.932235133093-113.631595759889781.185900939375991.5671664912251017.636666666671022.151010.419737272411008.3945468751
NW_Cal_Interior41.67889-122.300046666667111.27NW_CalCoast40.47424-123.244826666667100.8138.5233113245517-113.150444071439852.615138682667891.841745199381015.826666666671016.91984.734747087625995.223431184454
NW_CalCoast40.47424-123.244826666667100.81SW_OreCoast243.4979633333333-123.83639117.338.3937803970952-112.622782395033939.9656874373181097.608466891431016.911022.15994.0532199999741006.92349560772
NW_Cal_Interior41.67889-122.300046666667111.27SW_OreCoast243.4979633333333-123.83639117.338.0516821256396-111.997716500775966.009939190351164.120378233411015.826666666671022.15980.5996316549891006.00081330275
lat_grouplon_groupPresAvggroup_count
41-1201012.83