Jan 2026: Due to an ongoing data center cooling system construction project, NGFS data outages may occur with little or no notice. Bitterly cold air in Madison Jan 22-24 increases risk of outages.

Wildfire Alert Report

Date: 2025-12-01
Time: 19:46:17
Production Date and Time: 2025-12-01 19:51:25 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20253351946177_e20253351948550_c20253351949058.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20253351941177_e20253351943550_c20253351944064.nc
Number Of Thermal Anomaly Alerts: 4
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Possible Wildfire

Basic Information
State/Province(s) WA
Country/Countries United States
County/Locality(s) Grays Harbor County, WA
NWS WFO Seattle WA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-12-01 19:46:18UTC
Radiative Center (Lat, Lon): 47.243057°, -124.064163°
Nearby Counties (meeting alert criteria):
  • Grays Harbor County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power33.44 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)284.79 K
Observed - Background BT (3.9 um)6.68 K
BT Anomaly (3.9 um)7.23 K
Maximum Observed - Clear RTM BT (3.9 um)9.79 K
Maximum Observed BTD (3.9-10/11/12 um)11.50 K
Observed - Background BTD (3.9-10/11/12 um)6.43 K
BTD Anomaly (3.9-10/11/12 um)5.72 K
Similar Pixel Count4
BT Time Tendency (3.9 um)1.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.65
Fraction of Surrounding Red Channel Pixels that are Brighter0.88
Maximum Radiative Power33.44 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 72.30°
Mean Solar Zenith Angle 68.90°
Mean Glint Angle115.40°
Water Fraction0.00
Total Pixel Area 13.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Brule County, SD
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-12-01 19:46:20UTC
Radiative Center (Lat, Lon): 43.777779°, -99.184998°
Nearby Counties (meeting alert criteria):
  • Brule County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power4.32 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)271.09 K
Observed - Background BT (3.9 um)3.65 K
BT Anomaly (3.9 um)4.05 K
Maximum Observed - Clear RTM BT (3.9 um)8.32 K
Maximum Observed BTD (3.9-10/11/12 um)6.40 K
Observed - Background BTD (3.9-10/11/12 um)3.66 K
BTD Anomaly (3.9-10/11/12 um)14.06 K
Similar Pixel Count1
BT Time Tendency (3.9 um)0.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.56
Fraction of Surrounding Red Channel Pixels that are Brighter0.94
Maximum Radiative Power4.32 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.20°
Mean Solar Zenith Angle 67.90°
Mean Glint Angle104.70°
Water Fraction0.00
Total Pixel Area 7.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) OR
Country/Countries United States
County/Locality(s) Harney County, OR
NWS WFO Boise ID
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2025-12-01 19:46:48UTC
Radiative Center (Lat, Lon): 42.534168°, -118.794998°
Nearby Counties (meeting alert criteria):
  • Harney County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power182.46 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)294.80 K
Observed - Background BT (3.9 um)22.87 K
BT Anomaly (3.9 um)14.43 K
Maximum Observed - Clear RTM BT (3.9 um)20.62 K
Maximum Observed BTD (3.9-10/11/12 um)37.78 K
Observed - Background BTD (3.9-10/11/12 um)22.61 K
BTD Anomaly (3.9-10/11/12 um)23.13 K
Similar Pixel Count0
BT Time Tendency (3.9 um)14.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.89
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power121.52 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 66.20°
Mean Solar Zenith Angle 64.10°
Mean Glint Angle107.00°
Water Fraction0.00
Total Pixel Area 19.80 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) AZ
Country/Countries United States
County/Locality(s) Navajo County, AZ
NWS WFO Flagstaff AZ
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-12-01 19:47:18UTC
Radiative Center (Lat, Lon): 34.018333°, -110.042221°
Nearby Counties (meeting alert criteria):
  • Navajo County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.48 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)290.51 K
Observed - Background BT (3.9 um)3.93 K
BT Anomaly (3.9 um)2.20 K
Maximum Observed - Clear RTM BT (3.9 um)12.80 K
Maximum Observed BTD (3.9-10/11/12 um)8.20 K
Observed - Background BTD (3.9-10/11/12 um)4.14 K
BTD Anomaly (3.9-10/11/12 um)5.04 K
Similar Pixel Count3
BT Time Tendency (3.9 um)1.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.37
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power9.48 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 54.50°
Mean Solar Zenith Angle 56.30°
Mean Glint Angle89.90°
Water Fraction0.00
Total Pixel Area 6.90 km2
Latest Satellite Imagery:
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