1850 UTC June 07 2025: NGFS processing has resumed at UW/SSEC. The source of the earlier power outage is being investigated. Additional outages, while not expected, are possible.

Wildfire Alert Report

Date: 2025-05-27
Time: 08:20:20
Production Date and Time: 2025-05-27 08:31:45 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadF-M6C14_G18_s20251470820204_e20251470829512_c20251470829574.nc
L1 File(s) - TemporalOR_ABI-L1b-RadF-M6C14_G18_s20251470810204_e20251470819512_c20251470819577.nc
Number Of Thermal Anomaly Alerts: 1
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Possible Wildfire

Basic Information
State/Province(s) AK
Country/Countries United States
County/Locality(s) Yukon-Koyukuk Census Area, AK
NWS WFO Unknown
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-05-27 08:20:23UTC
Radiative Center (Lat, Lon): 67.430832°, -146.414169°
Nearby Counties (meeting alert criteria):
  • Yukon-Koyukuk Census Area (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power199.87 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)286.48 K
Observed - Background BT (3.9 um)18.83 K
BT Anomaly (3.9 um)4.52 K
Maximum Observed - Clear RTM BT (3.9 um)12.97 K
Maximum Observed BTD (3.9-10/11/12 um)27.40 K
Observed - Background BTD (3.9-10/11/12 um)18.97 K
BTD Anomaly (3.9-10/11/12 um)4.23 K
Similar Pixel Count9
BT Time Tendency (3.9 um)8.70 K
Image Interval10.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.69
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power199.87 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 77.00°
Mean Solar Zenith Angle 90.10°
Mean Glint Angle15.80°
Water Fraction0.00
Total Pixel Area 17.80 km2
Latest Satellite Imagery:
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