Please consider accessing NGFS detections and satellite imagery through the NOAA/NESDIS Wildland Fire Data Portal: https://fire.data.nesdis.noaa.gov/map/

Wildfire Notification Report

Date: 2026-04-21
Time: 17:36:17
Production Date and Time: 2026-04-21 17:41:07 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111736177_e20261111738550_c20261111739033.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111731177_e20261111733550_c20261111734034.nc
Number Of Thermal Anomaly Notifications: 7
More details ▼ Hide details ▲

Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) St. Louis County, MN
NWS WFO Duluth MN
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 17:36:21UTC
Radiative Center (Lat, Lon): 47.235279°, -92.427780°
Nearby Counties (meeting notification criteria):
  • St. Louis County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power18.58 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.56 K
Observed - Background BT (3.9 um)2.43 K
BT Anomaly (3.9 um)2.19 K
Maximum Observed - Clear RTM BT (3.9 um)13.72 K
Maximum Observed BTD (3.9-10/11/12 um)9.27 K
Observed - Background BTD (3.9-10/11/12 um)2.70 K
BTD Anomaly (3.9-10/11/12 um)6.56 K
Similar Pixel Count18
BT Time Tendency (3.9 um)2.00 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 Power9.67 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 57.20°
Mean Solar Zenith Angle 36.30°
Mean Glint Angle93.10°
Water Fraction0.00
Total Pixel Area 14.80 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Chouteau County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 17:36:19UTC
Radiative Center (Lat, Lon): 47.618057°, -110.086113°
Nearby Counties (meeting notification criteria):
  • Chouteau County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power75.35 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)312.70 K
Observed - Background BT (3.9 um)4.05 K
BT Anomaly (3.9 um)3.43 K
Maximum Observed - Clear RTM BT (3.9 um)14.11 K
Maximum Observed BTD (3.9-10/11/12 um)15.14 K
Observed - Background BTD (3.9-10/11/12 um)4.80 K
BTD Anomaly (3.9-10/11/12 um)5.74 K
Similar Pixel Count21
BT Time Tendency (3.9 um)4.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.24
Fraction of Surrounding Red Channel Pixels that are Brighter0.96
Maximum Radiative Power38.88 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 64.70°
Mean Solar Zenith Angle 42.00°
Mean Glint Angle106.60°
Water Fraction0.00
Total Pixel Area 18.70 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) St. Croix County, WI
NWS WFO Twin Cities/Chanhassen MN
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 17:36:21UTC
Radiative Center (Lat, Lon): 45.105835°, -92.462502°
Nearby Counties (meeting notification criteria):
  • St. Croix County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power65.73 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)312.51 K
Observed - Background BT (3.9 um)7.86 K
BT Anomaly (3.9 um)5.25 K
Maximum Observed - Clear RTM BT (3.9 um)21.43 K
Maximum Observed BTD (3.9-10/11/12 um)18.83 K
Observed - Background BTD (3.9-10/11/12 um)7.21 K
BTD Anomaly (3.9-10/11/12 um)5.16 K
Similar Pixel Count13
BT Time Tendency (3.9 um)4.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.82
Fraction of Surrounding Red Channel Pixels that are Brighter0.84
Maximum Radiative Power38.57 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.00°
Mean Solar Zenith Angle 34.30°
Mean Glint Angle88.90°
Water Fraction0.00
Total Pixel Area 14.00 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Cottonwood County, MN
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 17:36:20UTC
Radiative Center (Lat, Lon): 44.002224°, -95.209167°
Nearby Counties (meeting notification criteria):
  • Cottonwood County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power41.26 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)318.75 K
Observed - Background BT (3.9 um)2.83 K
BT Anomaly (3.9 um)2.96 K
Maximum Observed - Clear RTM BT (3.9 um)21.22 K
Maximum Observed BTD (3.9-10/11/12 um)15.58 K
Observed - Background BTD (3.9-10/11/12 um)3.45 K
BTD Anomaly (3.9-10/11/12 um)6.75 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.37
Fraction of Surrounding Red Channel Pixels that are Brighter0.98
Maximum Radiative Power24.58 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 54.80°
Mean Solar Zenith Angle 33.70°
Mean Glint Angle88.30°
Water Fraction0.00
Total Pixel Area 13.90 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Rock County, WI
NWS WFO Milwaukee/Sullivan WI
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 17:36:51UTC
Radiative Center (Lat, Lon): 42.653332°, -89.253334°
Nearby Counties (meeting notification criteria):
  • Rock County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power29.46 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)309.84 K
Observed - Background BT (3.9 um)6.98 K
BT Anomaly (3.9 um)8.51 K
Maximum Observed - Clear RTM BT (3.9 um)20.13 K
Maximum Observed BTD (3.9-10/11/12 um)21.17 K
Observed - Background BTD (3.9-10/11/12 um)7.09 K
BTD Anomaly (3.9-10/11/12 um)5.52 K
Similar Pixel Count0
BT Time Tendency (3.9 um)5.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.59
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power29.46 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.50°
Mean Solar Zenith Angle 31.40°
Mean Glint Angle82.50°
Water Fraction0.00
Total Pixel Area 6.40 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Woodbury County, IA
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 17:36:50UTC
Radiative Center (Lat, Lon): 42.422779°, -96.111389°
Nearby Counties (meeting notification criteria):
  • Woodbury County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power92.07 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)325.60 K
Observed - Background BT (3.9 um)7.54 K
BT Anomaly (3.9 um)5.81 K
Maximum Observed - Clear RTM BT (3.9 um)25.06 K
Maximum Observed BTD (3.9-10/11/12 um)18.54 K
Observed - Background BTD (3.9-10/11/12 um)7.60 K
BTD Anomaly (3.9-10/11/12 um)19.34 K
Similar Pixel Count2
BT Time Tendency (3.9 um)6.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.47
Fraction of Surrounding Red Channel Pixels that are Brighter0.95
Maximum Radiative Power56.80 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.70°
Mean Solar Zenith Angle 32.50°
Mean Glint Angle85.90°
Water Fraction0.00
Total Pixel Area 13.50 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) KS
Country/Countries United States
County/Locality(s) Marion County, KS
NWS WFO Wichita KS
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 17:36:50UTC
Radiative Center (Lat, Lon): 38.159443°, -96.906113°
Nearby Counties (meeting notification criteria):
  • Marion County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power19.28 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)311.00 K
Observed - Background BT (3.9 um)3.78 K
BT Anomaly (3.9 um)2.32 K
Maximum Observed - Clear RTM BT (3.9 um)15.82 K
Maximum Observed BTD (3.9-10/11/12 um)15.42 K
Observed - Background BTD (3.9-10/11/12 um)3.91 K
BTD Anomaly (3.9-10/11/12 um)4.61 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.44
Fraction of Surrounding Red Channel Pixels that are Brighter0.96
Maximum Radiative Power19.28 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 49.90°
Mean Solar Zenith Angle 28.90°
Mean Glint Angle78.60°
Water Fraction0.00
Total Pixel Area 6.20 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »