Wildfire Alert Report

Date: 2025-03-11
Time: 18:11:18
Production Date and Time: 2025-03-11 18:15:59 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20250701811183_e20250701813556_c20250701814029.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20250701806183_e20250701808556_c20250701809048.nc
Number Of Thermal Anomaly Alerts: 4
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Shasta County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-03-11 18:11:54UTC
Radiative Center (Lat, Lon): 40.502224°, -122.590836°
Nearby Counties (meeting alert criteria):
  • Shasta County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.75 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.15 K
Observed - Background BT (3.9 um)2.85 K
BT Anomaly (3.9 um)2.23 K
Maximum Observed - Clear RTM BT (3.9 um)9.98 K
Maximum Observed BTD (3.9-10/11/12 um)8.59 K
Observed - Background BTD (3.9-10/11/12 um)2.60 K
BTD Anomaly (3.9-10/11/12 um)4.89 K
Similar Pixel Count24
BT Time Tendency (3.9 um)0.80 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 Power7.75 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 49.40°
Mean Solar Zenith Angle 53.60°
Mean Glint Angle83.70°
Water Fraction0.00
Total Pixel Area 6.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Glenn County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-03-11 18:11:54UTC
Radiative Center (Lat, Lon): 39.646389°, -122.006386°
Nearby Counties (meeting alert criteria):
  • Glenn County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.16 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)296.99 K
Observed - Background BT (3.9 um)3.39 K
BT Anomaly (3.9 um)2.35 K
Maximum Observed - Clear RTM BT (3.9 um)10.73 K
Maximum Observed BTD (3.9-10/11/12 um)9.87 K
Observed - Background BTD (3.9-10/11/12 um)3.44 K
BTD Anomaly (3.9-10/11/12 um)4.22 K
Similar Pixel Count12
BT Time Tendency (3.9 um)1.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.40
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power9.16 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.70°
Mean Solar Zenith Angle 52.70°
Mean Glint Angle82.00°
Water Fraction0.00
Total Pixel Area 6.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Colusa County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-03-11 18:11:54UTC
Radiative Center (Lat, Lon): 39.316387°, -122.704445°
Nearby Counties (meeting alert criteria):
  • Colusa County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power6.47 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)292.18 K
Observed - Background BT (3.9 um)3.30 K
BT Anomaly (3.9 um)2.67 K
Maximum Observed - Clear RTM BT (3.9 um)9.74 K
Maximum Observed BTD (3.9-10/11/12 um)9.86 K
Observed - Background BTD (3.9-10/11/12 um)2.26 K
BTD Anomaly (3.9-10/11/12 um)3.87 K
Similar Pixel Count24
BT Time Tendency (3.9 um)1.80 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.41
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power6.47 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.10°
Mean Solar Zenith Angle 52.80°
Mean Glint Angle81.60°
Water Fraction0.00
Total Pixel Area 6.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Napa County, CA
NWS WFO San Francisco CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-03-11 18:11:54UTC
Radiative Center (Lat, Lon): 38.402779°, -122.264442°
Nearby Counties (meeting alert criteria):
  • Napa County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.36 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.35 K
Observed - Background BT (3.9 um)3.74 K
BT Anomaly (3.9 um)2.81 K
Maximum Observed - Clear RTM BT (3.9 um)12.30 K
Maximum Observed BTD (3.9-10/11/12 um)9.39 K
Observed - Background BTD (3.9-10/11/12 um)3.51 K
BTD Anomaly (3.9-10/11/12 um)4.31 K
Similar Pixel Count15
BT Time Tendency (3.9 um)1.40 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 Power9.36 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 47.30°
Mean Solar Zenith Angle 51.90°
Mean Glint Angle79.90°
Water Fraction0.00
Total Pixel Area 5.90 km2
Latest Satellite Imagery:
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