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Wildfire Notification Report

Date: 2026-04-23
Time: 19:26:17
Production Date and Time: 2026-04-23 19:31:09 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261131926179_e20261131928553_c20261131929014.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261131921179_e20261131923553_c20261131924034.nc
Number Of Thermal Anomaly Notifications: 4
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Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Hand County, SD
NWS WFO Aberdeen SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-23 19:26:20UTC
Radiative Center (Lat, Lon): 44.208057°, -98.827499°
Nearby Counties (meeting notification criteria):
  • Hand County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power10.72 MW
Map:
Additional Information
Notification Status New Feature
Type of EventRed Flag Warning (NWS)
Event Priority Ranking1
Maximum Observed BT (3.9 um)302.84 K
Observed - Background BT (3.9 um)1.62 K
BT Anomaly (3.9 um)1.23 K
Maximum Observed - Clear RTM BT (3.9 um)10.24 K
Maximum Observed BTD (3.9-10/11/12 um)14.27 K
Observed - Background BTD (3.9-10/11/12 um)1.86 K
BTD Anomaly (3.9-10/11/12 um)1.77 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.10 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 Power10.72 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.50°
Mean Solar Zenith Angle 33.90°
Mean Glint Angle78.70°
Water Fraction0.00
Total Pixel Area 7.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MI
Country/Countries United States
County/Locality(s) Gratiot County, MI
NWS WFO Grand Rapids MI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-23 19:26:21UTC
Radiative Center (Lat, Lon): 43.205555°, -84.704170°
Nearby Counties (meeting notification criteria):
  • Gratiot County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power14.04 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.39 K
Observed - Background BT (3.9 um)4.73 K
BT Anomaly (3.9 um)4.11 K
Maximum Observed - Clear RTM BT (3.9 um)14.96 K
Maximum Observed BTD (3.9-10/11/12 um)18.48 K
Observed - Background BTD (3.9-10/11/12 um)3.21 K
BTD Anomaly (3.9-10/11/12 um)3.67 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder1.00
Fraction of Surrounding Red Channel Pixels that are Brighter0.82
Maximum Radiative Power14.04 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.00°
Mean Solar Zenith Angle 38.90°
Mean Glint Angle76.10°
Water Fraction0.00
Total Pixel Area 6.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Merced County, CA
NWS WFO Hanford CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-23 19:27:18UTC
Radiative Center (Lat, Lon): 37.062500°, -120.726112°
Nearby Counties (meeting notification criteria):
  • Merced County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power16.40 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)302.91 K
Observed - Background BT (3.9 um)4.01 K
BT Anomaly (3.9 um)2.11 K
Maximum Observed - Clear RTM BT (3.9 um)11.11 K
Maximum Observed BTD (3.9-10/11/12 um)15.95 K
Observed - Background BTD (3.9-10/11/12 um)4.09 K
BTD Anomaly (3.9-10/11/12 um)2.53 K
Similar Pixel Count18
BT Time Tendency (3.9 um)0.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.51
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power16.40 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 64.20°
Mean Solar Zenith Angle 26.00°
Mean Glint Angle85.00°
Water Fraction0.00
Total Pixel Area 9.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) TX
Country/Countries United States
County/Locality(s) Calhoun County, TX
NWS WFO Corpus Christi TX
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-23 19:27:50UTC
Radiative Center (Lat, Lon): 28.627501°, -96.652496°
Nearby Counties (meeting notification criteria):
  • Calhoun County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power33.55 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.17 K
Observed - Background BT (3.9 um)7.64 K
BT Anomaly (3.9 um)9.40 K
Maximum Observed - Clear RTM BT (3.9 um)9.37 K
Maximum Observed BTD (3.9-10/11/12 um)25.38 K
Observed - Background BTD (3.9-10/11/12 um)7.06 K
BTD Anomaly (3.9-10/11/12 um)6.54 K
Similar Pixel Count0
BT Time Tendency (3.9 um)3.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.61
Fraction of Surrounding Red Channel Pixels that are Brighter0.85
Maximum Radiative Power33.55 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 41.10°
Mean Solar Zenith Angle 21.80°
Mean Glint Angle47.70°
Water Fraction0.00
Total Pixel Area 5.30 km2
Latest Satellite Imagery:
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