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Wildfire Notification Report

Date: 2026-08-18
Time: 19:46:17
Production Date and Time: 2026-08-18 19:51:08 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20262301946172_e20262301948548_c20262301949031.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20262301941172_e20262301943549_c20262301944038.nc
Number Of Thermal Anomaly Notifications: 3
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Possible Wildfire

Basic Information
State/Province(s) British Columbia
Country/Countries Canada
County/Locality(s) Squamish-Lillooet, British Columbia
NWS WFO N/A
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-08-18 19:46:22UTC
Radiative Center (Lat, Lon): 50.901669°, -121.720001°
Nearby Counties (meeting notification criteria):
  • Squamish-Lillooet (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power262.83 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)323.61 K
Observed - Background BT (3.9 um)22.63 K
BT Anomaly (3.9 um)9.07 K
Maximum Observed - Clear RTM BT (3.9 um)32.56 K
Maximum Observed BTD (3.9-10/11/12 um)35.56 K
Observed - Background BTD (3.9-10/11/12 um)23.31 K
BTD Anomaly (3.9-10/11/12 um)12.32 K
Similar Pixel Count0
BT Time Tendency (3.9 um)16.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.16
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power167.85 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 60.40°
Mean Solar Zenith Angle 37.70°
Mean Glint Angle94.30°
Water Fraction0.00
Total Pixel Area 16.20 km2
Latest Satellite Imagery:
  • None Available
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Possible Wildfire

Basic Information
State/Province(s) British Columbia
Country/Countries Canada
County/Locality(s) Fraser Valley, British Columbia
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-08-18 19:46:22UTC
Radiative Center (Lat, Lon): 49.899445°, -121.521111°
Nearby Counties (meeting notification criteria):
  • Fraser Valley (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power12.11 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)304.61 K
Observed - Background BT (3.9 um)4.50 K
BT Anomaly (3.9 um)1.49 K
Maximum Observed - Clear RTM BT (3.9 um)15.96 K
Maximum Observed BTD (3.9-10/11/12 um)16.43 K
Observed - Background BTD (3.9-10/11/12 um)3.78 K
BTD Anomaly (3.9-10/11/12 um)1.84 K
Similar Pixel Count24
BT Time Tendency (3.9 um)0.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.82
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power12.11 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.40°
Mean Solar Zenith Angle 36.70°
Mean Glint Angle92.30°
Water Fraction0.00
Total Pixel Area 7.90 km2
Latest Satellite Imagery:
  • None Available
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Possible Wildfire

Basic Information
State/Province(s) WA
Country/Countries United States
County/Locality(s) Skamania County, WA
NWS WFO Portland OR
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-08-18 19:46:22UTC
Radiative Center (Lat, Lon): 45.872223°, -122.101112°
Nearby Counties (meeting notification criteria):
  • Skamania County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power13.32 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: HIGH LAVA (HIGH, tdiff=0.80551 days, Perimeter)
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.80 K
Observed - Background BT (3.9 um)2.60 K
BT Anomaly (3.9 um)1.87 K
Maximum Observed - Clear RTM BT (3.9 um)7.84 K
Maximum Observed BTD (3.9-10/11/12 um)8.28 K
Observed - Background BTD (3.9-10/11/12 um)3.03 K
BTD Anomaly (3.9-10/11/12 um)3.70 K
Similar Pixel Count10
BT Time Tendency (3.9 um)1.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.31
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power13.32 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.10°
Mean Solar Zenith Angle 32.80°
Mean Glint Angle84.00°
Water Fraction0.00
Total Pixel Area 7.00 km2
Latest Satellite Imagery:
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