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Wildfire Notification Report

Date: 2026-04-21
Time: 18:21:17
Production Date and Time: 2026-04-21 18:26:13 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111821177_e20261111823550_c20261111824040.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111816177_e20261111818550_c20261111819014.nc
Number Of Thermal Anomaly Notifications: 7
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Pondera County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:21:19UTC
Radiative Center (Lat, Lon): 48.120834°, -111.839722°
Nearby Counties (meeting notification criteria):
  • Pondera County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power41.56 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)314.94 K
Observed - Background BT (3.9 um)2.20 K
BT Anomaly (3.9 um)1.68 K
Maximum Observed - Clear RTM BT (3.9 um)15.85 K
Maximum Observed BTD (3.9-10/11/12 um)13.46 K
Observed - Background BTD (3.9-10/11/12 um)2.22 K
BTD Anomaly (3.9-10/11/12 um)4.86 K
Similar Pixel Count25
BT Time Tendency (3.9 um)0.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.50
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power21.69 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 66.00°
Mean Solar Zenith Angle 39.00°
Mean Glint Angle103.00°
Water Fraction0.00
Total Pixel Area 19.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) ID
Country/Countries United States
County/Locality(s) Bonner County, ID
NWS WFO Spokane WA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:21:19UTC
Radiative Center (Lat, Lon): 48.298889°, -116.949722°
Nearby Counties (meeting notification criteria):
  • Bonner County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power49.58 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: D8 RX Jasper Stew (HIGH, tdiff=0.07955 days, Point)
Event Priority Ranking4
Maximum Observed BT (3.9 um)299.74 K
Observed - Background BT (3.9 um)5.25 K
BT Anomaly (3.9 um)4.99 K
Maximum Observed - Clear RTM BT (3.9 um)6.17 K
Maximum Observed BTD (3.9-10/11/12 um)12.18 K
Observed - Background BTD (3.9-10/11/12 um)4.80 K
BTD Anomaly (3.9-10/11/12 um)6.72 K
Similar Pixel Count10
BT Time Tendency (3.9 um)2.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.82
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power28.80 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 68.80°
Mean Solar Zenith Angle 40.80°
Mean Glint Angle108.00°
Water Fraction0.00
Total Pixel Area 22.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Codington County, SD
NWS WFO Aberdeen SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:21:20UTC
Radiative Center (Lat, Lon): 44.830002°, -97.300003°
Nearby Counties (meeting notification criteria):
  • Codington County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power11.52 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)312.86 K
Observed - Background BT (3.9 um)3.29 K
BT Anomaly (3.9 um)1.76 K
Maximum Observed - Clear RTM BT (3.9 um)15.30 K
Maximum Observed BTD (3.9-10/11/12 um)15.70 K
Observed - Background BTD (3.9-10/11/12 um)3.88 K
BTD Anomaly (3.9-10/11/12 um)3.59 K
Similar Pixel Count24
BT Time Tendency (3.9 um)1.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.28
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power11.52 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.40°
Mean Solar Zenith Angle 33.30°
Mean Glint Angle86.90°
Water Fraction0.00
Total Pixel Area 7.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Lincoln County, MN
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:21:20UTC
Radiative Center (Lat, Lon): 44.233891°, -96.322777°
Nearby Counties (meeting notification criteria):
  • Lincoln County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power18.19 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)315.04 K
Observed - Background BT (3.9 um)1.55 K
BT Anomaly (3.9 um)0.96 K
Maximum Observed - Clear RTM BT (3.9 um)17.01 K
Maximum Observed BTD (3.9-10/11/12 um)14.37 K
Observed - Background BTD (3.9-10/11/12 um)2.30 K
BTD Anomaly (3.9-10/11/12 um)2.72 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.19
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power18.19 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.50°
Mean Solar Zenith Angle 32.70°
Mean Glint Angle85.20°
Water Fraction0.00
Total Pixel Area 7.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Pottawattamie County, IA
NWS WFO Omaha/Valley NE
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:21:50UTC
Radiative Center (Lat, Lon): 41.393055°, -95.430000°
Nearby Counties (meeting notification criteria):
  • Pottawattamie County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power14.43 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)319.19 K
Observed - Background BT (3.9 um)3.08 K
BT Anomaly (3.9 um)3.74 K
Maximum Observed - Clear RTM BT (3.9 um)19.96 K
Maximum Observed BTD (3.9-10/11/12 um)15.00 K
Observed - Background BTD (3.9-10/11/12 um)2.25 K
BTD Anomaly (3.9-10/11/12 um)4.34 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.94
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power14.43 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.40°
Mean Solar Zenith Angle 29.80°
Mean Glint Angle79.20°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) GA
Country/Countries United States
County/Locality(s) Cook County, GA
NWS WFO Tallahassee FL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:22:21UTC
Radiative Center (Lat, Lon): 31.156666°, -83.453056°
Nearby Counties (meeting notification criteria):
  • Cook County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power12.47 MW
Map:
Additional Information
Notification Status New Feature
Type of EventElevated Fire Risk (NWS/SPC)
Event Priority Ranking3
Maximum Observed BT (3.9 um)314.33 K
Observed - Background BT (3.9 um)3.08 K
BT Anomaly (3.9 um)1.94 K
Maximum Observed - Clear RTM BT (3.9 um)13.71 K
Maximum Observed BTD (3.9-10/11/12 um)12.58 K
Observed - Background BTD (3.9-10/11/12 um)3.05 K
BTD Anomaly (3.9-10/11/12 um)3.35 K
Similar Pixel Count25
BT Time Tendency (3.9 um)0.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.54
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power12.47 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 37.60°
Mean Solar Zenith Angle 22.60°
Mean Glint Angle54.80°
Water Fraction0.00
Total Pixel Area 5.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) Tamaulipas
Country/Countries Mexico
County/Locality(s) Ocampo, Tamaulipas
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:23:19UTC
Radiative Center (Lat, Lon): 22.807777°, -99.304169°
Nearby Counties (meeting notification criteria):
  • Ocampo (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power15.01 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)313.23 K
Observed - Background BT (3.9 um)4.55 K
BT Anomaly (3.9 um)1.74 K
Maximum Observed - Clear RTM BT (3.9 um)9.50 K
Maximum Observed BTD (3.9-10/11/12 um)20.54 K
Observed - Background BTD (3.9-10/11/12 um)4.07 K
BTD Anomaly (3.9-10/11/12 um)2.40 K
Similar Pixel Count23
BT Time Tendency (3.9 um)3.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.79
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power15.01 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 38.20°
Mean Solar Zenith Angle 11.80°
Mean Glint Angle48.60°
Water Fraction0.00
Total Pixel Area 5.10 km2
Latest Satellite Imagery:
  • None Available
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