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Wildfire Notification Report

Date: 2026-09-23
Time: 20:56:18
Production Date and Time: 2026-09-23 21:01:26 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20262662056183_e20262662058557_c20262662059015.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20262662051183_e20262662053557_c20262662054042.nc
Number Of Thermal Anomaly Notifications: 6
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Possible Wildfire

Basic Information
State/Province(s) WA
Country/Countries United States
County/Locality(s) Chelan County, WA
NWS WFO Spokane WA
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-09-23 20:56:24UTC
Radiative Center (Lat, Lon): 48.011112°, -120.580833°
Nearby Counties (meeting notification criteria):
  • Chelan County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power28.94 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: LITTLE GIANT (HIGH, tdiff=0.27838 days, Perimeter)
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.65 K
Observed - Background BT (3.9 um)6.64 K
BT Anomaly (3.9 um)6.59 K
Maximum Observed - Clear RTM BT (3.9 um)19.05 K
Maximum Observed BTD (3.9-10/11/12 um)21.36 K
Observed - Background BTD (3.9-10/11/12 um)6.41 K
BTD Anomaly (3.9-10/11/12 um)5.22 K
Similar Pixel Count0
BT Time Tendency (3.9 um)3.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.85
Fraction of Surrounding Red Channel Pixels that are Brighter0.67
Maximum Radiative Power28.94 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 57.70°
Mean Solar Zenith Angle 49.70°
Mean Glint Angle107.40°
Water Fraction0.00
Total Pixel Area 7.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Missoula County, MT
NWS WFO Missoula MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-09-23 20:56:24UTC
Radiative Center (Lat, Lon): 47.078335°, -114.468330°
Nearby Counties (meeting notification criteria):
  • Missoula County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power26.79 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: RX D4 Rennic Stark 10 (HIGH, tdiff=1.02373 days, Point)
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.81 K
Observed - Background BT (3.9 um)6.92 K
BT Anomaly (3.9 um)2.72 K
Maximum Observed - Clear RTM BT (3.9 um)14.52 K
Maximum Observed BTD (3.9-10/11/12 um)19.68 K
Observed - Background BTD (3.9-10/11/12 um)6.99 K
BTD Anomaly (3.9-10/11/12 um)3.23 K
Similar Pixel Count9
BT Time Tendency (3.9 um)7.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.69
Fraction of Surrounding Red Channel Pixels that are Brighter0.56
Maximum Radiative Power26.79 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 58.80°
Mean Solar Zenith Angle 50.50°
Mean Glint Angle109.30°
Water Fraction0.00
Total Pixel Area 7.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) ID
Country/Countries United States
County/Locality(s) Lewis County, ID
NWS WFO Spokane WA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-09-23 20:56:24UTC
Radiative Center (Lat, Lon): 46.274166°, -116.357498°
Nearby Counties (meeting notification criteria):
  • Lewis County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power31.53 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)315.10 K
Observed - Background BT (3.9 um)5.51 K
BT Anomaly (3.9 um)4.44 K
Maximum Observed - Clear RTM BT (3.9 um)23.14 K
Maximum Observed BTD (3.9-10/11/12 um)20.46 K
Observed - Background BTD (3.9-10/11/12 um)5.42 K
BTD Anomaly (3.9-10/11/12 um)6.75 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.88
Fraction of Surrounding Red Channel Pixels that are Brighter0.58
Maximum Radiative Power31.53 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 57.30°
Mean Solar Zenith Angle 49.20°
Mean Glint Angle106.50°
Water Fraction0.00
Total Pixel Area 7.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Mendocino County, CA
NWS WFO Eureka CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-09-23 20:56:54UTC
Radiative Center (Lat, Lon): 39.825001°, -123.193336°
Nearby Counties (meeting notification criteria):
  • Mendocino County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power15.55 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)315.48 K
Observed - Background BT (3.9 um)4.20 K
BT Anomaly (3.9 um)3.28 K
Maximum Observed - Clear RTM BT (3.9 um)14.46 K
Maximum Observed BTD (3.9-10/11/12 um)13.70 K
Observed - Background BTD (3.9-10/11/12 um)3.08 K
BTD Anomaly (3.9-10/11/12 um)3.55 K
Similar Pixel Count25
BT Time Tendency (3.9 um)0.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.78
Fraction of Surrounding Red Channel Pixels that are Brighter0.75
Maximum Radiative Power15.55 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.50°
Mean Solar Zenith Angle 41.30°
Mean Glint Angle89.80°
Water Fraction0.00
Total Pixel Area 6.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Glenn County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-09-23 20:56:54UTC
Radiative Center (Lat, Lon): 39.449722°, -122.235275°
Nearby Counties (meeting notification criteria):
  • Glenn County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power59.93 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)318.52 K
Observed - Background BT (3.9 um)5.94 K
BT Anomaly (3.9 um)3.13 K
Maximum Observed - Clear RTM BT (3.9 um)14.45 K
Maximum Observed BTD (3.9-10/11/12 um)16.69 K
Observed - Background BTD (3.9-10/11/12 um)6.13 K
BTD Anomaly (3.9-10/11/12 um)7.82 K
Similar Pixel Count16
BT Time Tendency (3.9 um)1.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.25
Fraction of Surrounding Red Channel Pixels that are Brighter0.28
Maximum Radiative Power32.65 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.40°
Mean Solar Zenith Angle 41.20°
Mean Glint Angle89.60°
Water Fraction0.00
Total Pixel Area 12.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) AZ
Country/Countries United States
County/Locality(s) Gila County, AZ
NWS WFO Phoenix AZ
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-09-23 20:57:25UTC
Radiative Center (Lat, Lon): 33.429443°, -110.855278°
Nearby Counties (meeting notification criteria):
  • Gila County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power25.76 MW
Map:
Additional Information
Notification Status New Feature
Type of EventIndustrial
Event Priority Ranking5
Maximum Observed BT (3.9 um)315.68 K
Observed - Background BT (3.9 um)5.04 K
BT Anomaly (3.9 um)2.39 K
Maximum Observed - Clear RTM BT (3.9 um)14.99 K
Maximum Observed BTD (3.9-10/11/12 um)23.40 K
Observed - Background BTD (3.9-10/11/12 um)5.16 K
BTD Anomaly (3.9-10/11/12 um)2.91 K
Similar Pixel Count25
BT Time Tendency (3.9 um)4.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.68
Fraction of Surrounding Red Channel Pixels that are Brighter0.40
Maximum Radiative Power25.76 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.20°
Mean Solar Zenith Angle 40.80°
Mean Glint Angle88.90°
Water Fraction0.00
Total Pixel Area 6.00 km2
Latest Satellite Imagery:
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