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: 21:06:17
Production Date and Time: 2026-04-21 21:11:06 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261112106177_e20261112108551_c20261112109007.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261112101177_e20261112103551_c20261112104016.nc
Number Of Thermal Anomaly Notifications: 6
More details ▼ Hide details ▲

Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Day County, SD
NWS WFO Aberdeen SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:06:20UTC
Radiative Center (Lat, Lon): 45.360001°, -97.974724°
Nearby Counties (meeting notification criteria):
  • Day County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.23 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: Amsden Dam RX (HIGH, tdiff=1.16998 days, Point)
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.19 K
Observed - Background BT (3.9 um)2.05 K
BT Anomaly (3.9 um)1.42 K
Maximum Observed - Clear RTM BT (3.9 um)13.66 K
Maximum Observed BTD (3.9-10/11/12 um)10.49 K
Observed - Background BTD (3.9-10/11/12 um)1.83 K
BTD Anomaly (3.9-10/11/12 um)2.75 K
Similar Pixel Count25
BT Time Tendency (3.9 um)0.40 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 Power9.23 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 57.20°
Mean Solar Zenith Angle 47.30°
Mean Glint Angle70.10°
Water Fraction0.00
Total Pixel Area 7.40 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) Outagamie County, WI
NWS WFO Green Bay WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:06:21UTC
Radiative Center (Lat, Lon): 44.317223°, -88.331665°
Nearby Counties (meeting notification criteria):
  • Outagamie County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power12.47 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)302.16 K
Observed - Background BT (3.9 um)4.22 K
BT Anomaly (3.9 um)3.44 K
Maximum Observed - Clear RTM BT (3.9 um)14.60 K
Maximum Observed BTD (3.9-10/11/12 um)11.09 K
Observed - Background BTD (3.9-10/11/12 um)3.70 K
BTD Anomaly (3.9-10/11/12 um)6.30 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.81
Fraction of Surrounding Red Channel Pixels that are Brighter0.94
Maximum Radiative Power12.47 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.00°
Mean Solar Zenith Angle 52.90°
Mean Glint Angle71.70°
Water Fraction0.00
Total Pixel Area 6.60 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) Olmsted County, MN
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:06:21UTC
Radiative Center (Lat, Lon): 44.105000°, -92.649719°
Nearby Counties (meeting notification criteria):
  • Olmsted County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power11.82 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.64 K
Observed - Background BT (3.9 um)1.67 K
BT Anomaly (3.9 um)1.36 K
Maximum Observed - Clear RTM BT (3.9 um)14.31 K
Maximum Observed BTD (3.9-10/11/12 um)10.71 K
Observed - Background BTD (3.9-10/11/12 um)1.94 K
BTD Anomaly (3.9-10/11/12 um)3.52 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.06
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power11.82 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 54.10°
Mean Solar Zenith Angle 50.00°
Mean Glint Angle69.40°
Water Fraction0.00
Total Pixel Area 6.80 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) Houston County, MN
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:06:21UTC
Radiative Center (Lat, Lon): 43.768333°, -91.692780°
Nearby Counties (meeting notification criteria):
  • Houston County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.89 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)304.07 K
Observed - Background BT (3.9 um)1.89 K
BT Anomaly (3.9 um)1.78 K
Maximum Observed - Clear RTM BT (3.9 um)14.15 K
Maximum Observed BTD (3.9-10/11/12 um)10.05 K
Observed - Background BTD (3.9-10/11/12 um)1.89 K
BTD Anomaly (3.9-10/11/12 um)2.94 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.30 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 Power9.89 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.40°
Mean Solar Zenith Angle 50.40°
Mean Glint Angle69.30°
Water Fraction0.00
Total Pixel Area 6.70 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) Wabaunsee County, KS
NWS WFO Topeka KS
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:06:50UTC
Radiative Center (Lat, Lon): 38.999443°, -96.013611°
Nearby Counties (meeting notification criteria):
  • Wabaunsee County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power19.53 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.93 K
Observed - Background BT (3.9 um)2.42 K
BT Anomaly (3.9 um)1.48 K
Maximum Observed - Clear RTM BT (3.9 um)12.71 K
Maximum Observed BTD (3.9-10/11/12 um)11.41 K
Observed - Background BTD (3.9-10/11/12 um)2.06 K
BTD Anomaly (3.9-10/11/12 um)2.33 K
Similar Pixel Count25
BT Time Tendency (3.9 um)0.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.60
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power10.21 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 50.30°
Mean Solar Zenith Angle 45.40°
Mean Glint Angle60.10°
Water Fraction0.00
Total Pixel Area 12.50 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) Tamaulipas
Country/Countries Mexico
County/Locality(s) Altamira, Tamaulipas
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:08:19UTC
Radiative Center (Lat, Lon): 22.481112°, -97.943886°
Nearby Counties (meeting notification criteria):
  • Altamira (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power31.82 MW
Map:
Additional Information
Notification Status New Feature
Type of EventOil/Gas
Event Priority Ranking5
Maximum Observed BT (3.9 um)315.64 K
Observed - Background BT (3.9 um)7.46 K
BT Anomaly (3.9 um)2.47 K
Maximum Observed - Clear RTM BT (3.9 um)13.76 K
Maximum Observed BTD (3.9-10/11/12 um)23.77 K
Observed - Background BTD (3.9-10/11/12 um)7.16 K
BTD Anomaly (3.9-10/11/12 um)3.08 K
Similar Pixel Count17
BT Time Tendency (3.9 um)2.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.75
Fraction of Surrounding Red Channel Pixels that are Brighter0.42
Maximum Radiative Power31.82 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 36.90°
Mean Solar Zenith Angle 38.70°
Mean Glint Angle31.30°
Water Fraction0.00
Total Pixel Area 5.00 km2
Latest Satellite Imagery:
  • None Available
Show More ▲ Show Less ▼ View all event imagery »