Jan 2026: Due to an ongoing data center cooling system construction project, NGFS data outages may occur with little or no notice. Bitterly cold air in Madison Jan 22-24 increases risk of outages.

Wildfire Alert Report

Date: 2024-09-20
Time: 20:21:17
Production Date and Time: 2024-09-20 20:25:58 UTC
Primary Instrument: GOES-16 ABI
Wmo Spacecraft Id: 152
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G16_s20242642021172_e20242642023545_c20242642024030.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G16_s20242642016172_e20242642018545_c20242642019041.nc
Number Of Thermal Anomaly Alerts: 5
More details ▼ Hide details ▲

Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries USA
County/Locality(s) Ravalli County, MT
NWS WFO Missoula MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2024-09-20 20:21:19UTC
Radiative Center (Lat, Lon): 46.230000°, -113.830000°
Nearby Counties (meeting alert criteria):
  • Ravalli County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power10.18 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk, Known Incident: DALY (HIGH, tdiff=1.22352 days, PERIMETER)
Event Priority Ranking4
Maximum Observed BT (3.9 um)293.96 K
Observed - Background BT (3.9 um)2.76 K
BT Anomaly (3.9 um)1.26 K
Maximum Observed - Clear RTM BT (3.9 um)10.91 K
Maximum Observed BTD (3.9-10/11/12 um)8.58 K
Observed - Background BTD (3.9-10/11/12 um)2.16 K
BTD Anomaly (3.9-10/11/12 um)2.03 K
Similar Pixel Count17
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 Power10.18 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 65.60°
Mean Solar Zenith Angle 46.70°
Mean Glint Angle89.20°
Water Fraction0.00
Total Pixel Area 15.10 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) ID
Country/Countries USA
County/Locality(s) Idaho County, ID
NWS WFO Missoula MT
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2024-09-20 20:21:19UTC
Radiative Center (Lat, Lon): 46.150000°, -116.090000°
Nearby Counties (meeting alert criteria):
  • Idaho County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power566.40 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)326.63 K
Observed - Background BT (3.9 um)30.43 K
BT Anomaly (3.9 um)11.95 K
Maximum Observed - Clear RTM BT (3.9 um)37.83 K
Maximum Observed BTD (3.9-10/11/12 um)44.41 K
Observed - Background BTD (3.9-10/11/12 um)30.86 K
BTD Anomaly (3.9-10/11/12 um)15.16 K
Similar Pixel Count0
BT Time Tendency (3.9 um)26.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.35
Fraction of Surrounding Red Channel Pixels that are Brighter0.00
Maximum Radiative Power377.84 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 66.90°
Mean Solar Zenith Angle 46.20°
Mean Glint Angle90.20°
Water Fraction0.00
Total Pixel Area 49.80 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries USA
County/Locality(s) Glenn County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2024-09-20 20:21:48UTC
Radiative Center (Lat, Lon): 39.620000°, -122.150000°
Nearby Counties (meeting alert criteria):
  • Glenn County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power44.38 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)310.57 K
Observed - Background BT (3.9 um)2.96 K
BT Anomaly (3.9 um)1.14 K
Maximum Observed - Clear RTM BT (3.9 um)8.89 K
Maximum Observed BTD (3.9-10/11/12 um)14.55 K
Observed - Background BTD (3.9-10/11/12 um)2.72 K
BTD Anomaly (3.9-10/11/12 um)2.07 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.51
Fraction of Surrounding Red Channel Pixels that are Brighter0.94
Maximum Radiative Power24.77 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 66.70°
Mean Solar Zenith Angle 38.90°
Mean Glint Angle85.20°
Water Fraction0.00
Total Pixel Area 34.40 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) KY
Country/Countries USA
County/Locality(s) Ballard County, KY
NWS WFO Paducah KY
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2024-09-20 20:21:51UTC
Radiative Center (Lat, Lon): 37.130000°, -88.950000°
Nearby Counties (meeting alert criteria):
  • Ballard County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power23.80 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.86 K
Observed - Background BT (3.9 um)5.08 K
BT Anomaly (3.9 um)4.00 K
Maximum Observed - Clear RTM BT (3.9 um)9.95 K
Maximum Observed BTD (3.9-10/11/12 um)17.56 K
Observed - Background BTD (3.9-10/11/12 um)4.46 K
BTD Anomaly (3.9-10/11/12 um)3.47 K
Similar Pixel Count24
BT Time Tendency (3.9 um)2.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.87
Fraction of Surrounding Red Channel Pixels that are Brighter0.90
Maximum Radiative Power13.05 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 45.70°
Mean Solar Zenith Angle 50.40°
Mean Glint Angle72.20°
Water Fraction0.00
Total Pixel Area 12.80 km2
Latest Satellite Imagery:
Show More ▲ Show Less ▼ View all event imagery »

Possible Wildfire

Basic Information
State/Province(s) Unknown
Country/Countries Mexico
County/Locality(s) Mexico
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2024-09-20 20:22:48UTC
Radiative Center (Lat, Lon): 28.920000°, -111.400000°
Nearby Counties (meeting alert criteria):
  • Unknown (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power17.52 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)318.41 K
Observed - Background BT (3.9 um)2.38 K
BT Anomaly (3.9 um)1.21 K
Maximum Observed - Clear RTM BT (3.9 um)12.33 K
Maximum Observed BTD (3.9-10/11/12 um)23.19 K
Observed - Background BTD (3.9-10/11/12 um)2.63 K
BTD Anomaly (3.9-10/11/12 um)1.89 K
Similar Pixel Count25
BT Time Tendency (3.9 um)3.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.58
Fraction of Surrounding Red Channel Pixels that are Brighter0.94
Maximum Radiative Power17.52 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.20°
Mean Solar Zenith Angle 31.70°
Mean Glint Angle59.80°
Water Fraction0.00
Total Pixel Area 8.20 km2
Latest Satellite Imagery:
  • None Available
Show More ▲ Show Less ▼ View all event imagery »