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Wildfire Notification Report

Date: 2026-04-09
Time: 20:36:18
Production Date and Time: 2026-04-09 20:41:06 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20260992036185_e20260992038558_c20260992039060.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20260992031185_e20260992033558_c20260992034053.nc
Number Of Thermal Anomaly Notifications: 2
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Flathead County, MT
NWS WFO Missoula MT
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-09 20:36:24UTC
Radiative Center (Lat, Lon): 48.312222°, -114.368614°
Nearby Counties (meeting notification criteria):
  • Flathead County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power82.03 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)315.38 K
Observed - Background BT (3.9 um)15.86 K
BT Anomaly (3.9 um)9.37 K
Maximum Observed - Clear RTM BT (3.9 um)30.58 K
Maximum Observed BTD (3.9-10/11/12 um)24.73 K
Observed - Background BTD (3.9-10/11/12 um)14.45 K
BTD Anomaly (3.9-10/11/12 um)10.69 K
Similar Pixel Count0
BT Time Tendency (3.9 um)13.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder1.00
Fraction of Surrounding Red Channel Pixels that are Brighter0.54
Maximum Radiative Power82.03 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 60.00°
Mean Solar Zenith Angle 42.90°
Mean Glint Angle102.50°
Water Fraction0.00
Total Pixel Area 8.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) NE
Country/Countries United States
County/Locality(s) Cheyenne County, NE
NWS WFO Cheyenne WY
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-09 20:36:56UTC
Radiative Center (Lat, Lon): 41.204723°, -103.004723°
Nearby Counties (meeting notification criteria):
  • Cheyenne County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power196.75 MW
Map:
Additional Information
Notification Status New Feature
Type of EventRed Flag Warning (NWS)
Event Priority Ranking1
Maximum Observed BT (3.9 um)323.55 K
Observed - Background BT (3.9 um)18.66 K
BT Anomaly (3.9 um)6.10 K
Maximum Observed - Clear RTM BT (3.9 um)29.76 K
Maximum Observed BTD (3.9-10/11/12 um)36.81 K
Observed - Background BTD (3.9-10/11/12 um)21.47 K
BTD Anomaly (3.9-10/11/12 um)13.67 K
Similar Pixel Count0
BT Time Tendency (3.9 um)9.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.99
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power116.09 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.20°
Mean Solar Zenith Angle 41.00°
Mean Glint Angle100.00°
Water Fraction0.00
Total Pixel Area 15.60 km2
Latest Satellite Imagery:
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