Wildfire Alert Report

Date: 2025-05-21
Time: 17:41:18
Production Date and Time: 2025-05-21 17:45:54 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20251411741187_e20251411743560_c20251411744068.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20251411736187_e20251411738560_c20251411739036.nc
Number Of Thermal Anomaly Alerts: 4
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Possible Wildfire

Basic Information
State/Province(s) OR
Country/Countries United States
County/Locality(s) Deschutes County, OR
NWS WFO Pendleton OR
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-05-21 17:41:24UTC
Radiative Center (Lat, Lon): 44.256668°, -121.550552°
Nearby Counties (meeting alert criteria):
  • Deschutes County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power17.83 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.93 K
Observed - Background BT (3.9 um)5.56 K
BT Anomaly (3.9 um)1.96 K
Maximum Observed - Clear RTM BT (3.9 um)8.99 K
Maximum Observed BTD (3.9-10/11/12 um)12.43 K
Observed - Background BTD (3.9-10/11/12 um)5.12 K
BTD Anomaly (3.9-10/11/12 um)3.42 K
Similar Pixel Count9
BT Time Tendency (3.9 um)4.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.63
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power17.83 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.60°
Mean Solar Zenith Angle 38.00°
Mean Glint Angle65.70°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Sacramento County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-05-21 17:41:54UTC
Radiative Center (Lat, Lon): 38.298332°, -121.483330°
Nearby Counties (meeting alert criteria):
  • Sacramento County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power6.34 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.88 K
Observed - Background BT (3.9 um)2.45 K
BT Anomaly (3.9 um)1.23 K
Maximum Observed - Clear RTM BT (3.9 um)6.89 K
Maximum Observed BTD (3.9-10/11/12 um)8.27 K
Observed - Background BTD (3.9-10/11/12 um)1.90 K
BTD Anomaly (3.9-10/11/12 um)2.17 K
Similar Pixel Count20
BT Time Tendency (3.9 um)1.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.39
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power6.34 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 47.50°
Mean Solar Zenith Angle 35.40°
Mean Glint Angle54.90°
Water Fraction0.00
Total Pixel Area 5.90 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) San Bernardino County, CA
NWS WFO Las Vegas NV
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2025-05-21 17:42:25UTC
Radiative Center (Lat, Lon): 35.575554°, -115.446945°
Nearby Counties (meeting alert criteria):
  • San Bernardino County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power202.80 MW
Map:
Additional Information
Alert Status New Feature
Type of EventSolar panel (database + spectral)
Event Priority Ranking5
Maximum Observed BT (3.9 um)334.43 K
Observed - Background BT (3.9 um)14.03 K
BT Anomaly (3.9 um)8.16 K
Maximum Observed - Clear RTM BT (3.9 um)18.03 K
Maximum Observed BTD (3.9-10/11/12 um)22.85 K
Observed - Background BTD (3.9-10/11/12 um)13.90 K
BTD Anomaly (3.9-10/11/12 um)20.00 K
Similar Pixel Count0
BT Time Tendency (3.9 um)10.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.80
Fraction of Surrounding Red Channel Pixels that are Brighter0.00
Maximum Radiative Power202.80 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 47.50°
Mean Solar Zenith Angle 29.90°
Mean Glint Angle49.20°
Water Fraction0.00
Total Pixel Area 17.80 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Riverside County, CA
NWS WFO Phoenix AZ
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2025-05-21 17:42:25UTC
Radiative Center (Lat, Lon): 33.591110°, -114.748886°
Nearby Counties (meeting alert criteria):
  • Riverside County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power68.30 MW
Map:
Additional Information
Alert Status New Feature
Type of EventSolar panel (database + spectral)
Event Priority Ranking5
Maximum Observed BT (3.9 um)333.01 K
Observed - Background BT (3.9 um)8.39 K
BT Anomaly (3.9 um)6.72 K
Maximum Observed - Clear RTM BT (3.9 um)13.84 K
Maximum Observed BTD (3.9-10/11/12 um)17.32 K
Observed - Background BTD (3.9-10/11/12 um)8.43 K
BTD Anomaly (3.9-10/11/12 um)22.49 K
Similar Pixel Count0
BT Time Tendency (3.9 um)8.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.69
Fraction of Surrounding Red Channel Pixels that are Brighter0.00
Maximum Radiative Power68.30 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 46.00°
Mean Solar Zenith Angle 28.70°
Mean Glint Angle45.40°
Water Fraction0.00
Total Pixel Area 5.80 km2
Latest Satellite Imagery:
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