Wildfire Alert Report

Date: 2025-04-21
Time: 20:56:17
Production Date and Time: 2025-04-21 21:01:24 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20251112056176_e20251112058549_c20251112059028.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20251112051176_e20251112053549_c20251112054039.nc
Number Of Thermal Anomaly Alerts: 4
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Possible Wildfire

Basic Information
State/Province(s) ND
Country/Countries United States
County/Locality(s) Ransom County, ND
NWS WFO Grand Forks ND
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-04-21 20:56:20UTC
Radiative Center (Lat, Lon): 46.287224°, -97.635834°
Nearby Counties (meeting alert criteria):
  • Ransom County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power24.73 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.67 K
Observed - Background BT (3.9 um)5.21 K
BT Anomaly (3.9 um)4.39 K
Maximum Observed - Clear RTM BT (3.9 um)17.94 K
Maximum Observed BTD (3.9-10/11/12 um)14.32 K
Observed - Background BTD (3.9-10/11/12 um)4.47 K
BTD Anomaly (3.9-10/11/12 um)4.90 K
Similar Pixel Count23
BT Time Tendency (3.9 um)4.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.83
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power24.73 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 58.00°
Mean Solar Zenith Angle 46.60°
Mean Glint Angle72.80°
Water Fraction0.00
Total Pixel Area 15.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Bon Homme County, SD
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-04-21 20:56:50UTC
Radiative Center (Lat, Lon): 42.979443°, -98.040833°
Nearby Counties (meeting alert criteria):
  • Bon Homme County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.70 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.48 K
Observed - Background BT (3.9 um)2.44 K
BT Anomaly (3.9 um)1.73 K
Maximum Observed - Clear RTM BT (3.9 um)19.16 K
Maximum Observed BTD (3.9-10/11/12 um)10.68 K
Observed - Background BTD (3.9-10/11/12 um)1.87 K
BTD Anomaly (3.9-10/11/12 um)2.69 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.75
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.70 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.00°
Mean Solar Zenith Angle 44.50°
Mean Glint Angle67.20°
Water Fraction0.00
Total Pixel Area 7.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Sac County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-04-21 20:56:50UTC
Radiative Center (Lat, Lon): 42.289722°, -95.048058°
Nearby Counties (meeting alert criteria):
  • Sac County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power57.36 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)312.59 K
Observed - Background BT (3.9 um)10.56 K
BT Anomaly (3.9 um)13.77 K
Maximum Observed - Clear RTM BT (3.9 um)22.06 K
Maximum Observed BTD (3.9-10/11/12 um)20.53 K
Observed - Background BTD (3.9-10/11/12 um)11.89 K
BTD Anomaly (3.9-10/11/12 um)44.13 K
Similar Pixel Count1
BT Time Tendency (3.9 um)9.80 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.00
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power57.36 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.10°
Mean Solar Zenith Angle 46.00°
Mean Glint Angle66.60°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) OR
Country/Countries United States
County/Locality(s) Josephine County, OR
NWS WFO Medford OR
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2025-04-21 20:56:48UTC
Radiative Center (Lat, Lon): 42.414444°, -123.306389°
Nearby Counties (meeting alert criteria):
  • Josephine County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power15.44 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.67 K
Observed - Background BT (3.9 um)6.72 K
BT Anomaly (3.9 um)4.51 K
Maximum Observed - Clear RTM BT (3.9 um)6.94 K
Maximum Observed BTD (3.9-10/11/12 um)9.53 K
Observed - Background BTD (3.9-10/11/12 um)5.10 K
BTD Anomaly (3.9-10/11/12 um)5.16 K
Similar Pixel Count16
BT Time Tendency (3.9 um)1.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.45
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power15.44 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 69.10°
Mean Solar Zenith Angle 32.30°
Mean Glint Angle77.80°
Water Fraction0.00
Total Pixel Area 11.20 km2
Latest Satellite Imagery:
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