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Wildfire Notification Report

Date: 2026-08-11
Time: 23:16:18
Production Date and Time: 2026-08-11 23:21:10 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20262232316184_e20262232318558_c20262232319031.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20262232311184_e20262232313558_c20262232314032.nc
Number Of Thermal Anomaly Notifications: 4
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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/Time2026-08-11 23:16:23UTC
Radiative Center (Lat, Lon): 49.874168°, -121.528336°
Nearby Counties (meeting notification criteria):
  • Fraser Valley (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power34.03 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.41 K
Observed - Background BT (3.9 um)10.30 K
BT Anomaly (3.9 um)3.49 K
Maximum Observed - Clear RTM BT (3.9 um)13.10 K
Maximum Observed BTD (3.9-10/11/12 um)20.59 K
Observed - Background BTD (3.9-10/11/12 um)10.38 K
BTD Anomaly (3.9-10/11/12 um)4.00 K
Similar Pixel Count10
BT Time Tendency (3.9 um)1.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.66
Fraction of Surrounding Red Channel Pixels that are Brighter0.79
Maximum Radiative Power34.03 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.40°
Mean Solar Zenith Angle 50.50°
Mean Glint Angle98.60°
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) Asotin County, WA
NWS WFO Spokane WA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-08-11 23:16:24UTC
Radiative Center (Lat, Lon): 46.400833°, -117.234726°
Nearby Counties (meeting notification criteria):
  • Asotin County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power43.64 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: Mutual Aid 449 (HIGH, tdiff=0.0391 days, Point)
Event Priority Ranking4
Maximum Observed BT (3.9 um)320.91 K
Observed - Background BT (3.9 um)7.61 K
BT Anomaly (3.9 um)6.61 K
Maximum Observed - Clear RTM BT (3.9 um)12.84 K
Maximum Observed BTD (3.9-10/11/12 um)18.84 K
Observed - Background BTD (3.9-10/11/12 um)6.58 K
BTD Anomaly (3.9-10/11/12 um)9.10 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.97
Fraction of Surrounding Red Channel Pixels that are Brighter0.92
Maximum Radiative Power43.64 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 57.10°
Mean Solar Zenith Angle 51.80°
Mean Glint Angle97.70°
Water Fraction0.00
Total Pixel Area 7.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) HI
Country/Countries United States
County/Locality(s) Hawaii County, HI
NWS WFO Honolulu HI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-08-11 23:18:19UTC
Radiative Center (Lat, Lon): 19.660278°, -156.011383°
Nearby Counties (meeting notification criteria):
  • Hawaii County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power25.09 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)309.30 K
Observed - Background BT (3.9 um)7.76 K
BT Anomaly (3.9 um)4.67 K
Maximum Observed - Clear RTM BT (3.9 um)12.12 K
Maximum Observed BTD (3.9-10/11/12 um)18.26 K
Observed - Background BTD (3.9-10/11/12 um)8.38 K
BTD Anomaly (3.9-10/11/12 um)3.69 K
Similar Pixel Count18
BT Time Tendency (3.9 um)2.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.41
Fraction of Surrounding Red Channel Pixels that are Brighter0.38
Maximum Radiative Power25.09 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 31.80°
Mean Solar Zenith Angle 11.90°
Mean Glint Angle27.90°
Water Fraction0.00
Total Pixel Area 4.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) HI
Country/Countries United States
County/Locality(s) Hawaii County, HI
NWS WFO Honolulu HI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-08-11 23:18:49UTC
Radiative Center (Lat, Lon): 19.097500°, -155.887772°
Nearby Counties (meeting notification criteria):
  • Hawaii County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power29.80 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)321.08 K
Observed - Background BT (3.9 um)5.43 K
BT Anomaly (3.9 um)14.02 K
Maximum Observed - Clear RTM BT (3.9 um)15.59 K
Maximum Observed BTD (3.9-10/11/12 um)21.34 K
Observed - Background BTD (3.9-10/11/12 um)6.04 K
BTD Anomaly (3.9-10/11/12 um)11.57 K
Similar Pixel Count18
BT Time Tendency (3.9 um)0.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.94
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power29.80 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 31.20°
Mean Solar Zenith Angle 11.80°
Mean Glint Angle26.80°
Water Fraction0.00
Total Pixel Area 4.70 km2
Latest Satellite Imagery:
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