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Wildfire Notification Report

Date: 2026-04-09
Time: 18:41:18
Production Date and Time: 2026-04-09 18:46:03 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20260991841185_e20260991843558_c20260991844059.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20260991836185_e20260991838558_c20260991839048.nc
Number Of Thermal Anomaly Notifications: 4
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Possible Wildfire

Basic Information
State/Province(s) British Columbia
Country/Countries Canada
County/Locality(s) Thompson-Nicola, British Columbia
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-09 18:41:23UTC
Radiative Center (Lat, Lon): 50.055832°, -120.544167°
Nearby Counties (meeting notification criteria):
  • Thompson-Nicola (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power68.76 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.08 K
Observed - Background BT (3.9 um)8.87 K
BT Anomaly (3.9 um)8.97 K
Maximum Observed - Clear RTM BT (3.9 um)19.00 K
Maximum Observed BTD (3.9-10/11/12 um)16.07 K
Observed - Background BTD (3.9-10/11/12 um)7.84 K
BTD Anomaly (3.9-10/11/12 um)20.15 K
Similar Pixel Count3
BT Time Tendency (3.9 um)5.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.98
Fraction of Surrounding Red Channel Pixels that are Brighter0.51
Maximum Radiative Power38.67 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.90°
Mean Solar Zenith Angle 46.20°
Mean Glint Angle93.10°
Water Fraction0.00
Total Pixel Area 15.90 km2
Latest Satellite Imagery:
  • None Available
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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/Time2026-04-09 18:41:24UTC
Radiative Center (Lat, Lon): 47.550278°, -110.809448°
Nearby Counties (meeting notification criteria):
  • Chouteau County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power30.92 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.04 K
Observed - Background BT (3.9 um)6.71 K
BT Anomaly (3.9 um)4.97 K
Maximum Observed - Clear RTM BT (3.9 um)22.46 K
Maximum Observed BTD (3.9-10/11/12 um)16.36 K
Observed - Background BTD (3.9-10/11/12 um)6.86 K
BTD Anomaly (3.9-10/11/12 um)7.41 K
Similar Pixel Count5
BT Time Tendency (3.9 um)6.80 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.46
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power30.92 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 60.60°
Mean Solar Zenith Angle 41.40°
Mean Glint Angle90.10°
Water Fraction0.00
Total Pixel Area 8.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Lewis and Clark County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-09 18:41:24UTC
Radiative Center (Lat, Lon): 46.593056°, -112.080559°
Nearby Counties (meeting notification criteria):
  • Lewis and Clark County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power16.85 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)301.65 K
Observed - Background BT (3.9 um)4.87 K
BT Anomaly (3.9 um)3.00 K
Maximum Observed - Clear RTM BT (3.9 um)13.32 K
Maximum Observed BTD (3.9-10/11/12 um)12.19 K
Observed - Background BTD (3.9-10/11/12 um)4.33 K
BTD Anomaly (3.9-10/11/12 um)5.74 K
Similar Pixel Count19
BT Time Tendency (3.9 um)1.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.50
Fraction of Surrounding Red Channel Pixels that are Brighter0.88
Maximum Radiative Power16.85 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.20°
Mean Solar Zenith Angle 40.80°
Mean Glint Angle87.90°
Water Fraction0.00
Total Pixel Area 7.80 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/Time2026-04-09 18:41:54UTC
Radiative Center (Lat, Lon): 39.716110°, -123.193336°
Nearby Counties (meeting notification criteria):
  • Mendocino County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power29.80 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk, Known Incident: COVELO SOUTH VMP RX (HIGH, tdiff=0.75346 days, Point)
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.24 K
Observed - Background BT (3.9 um)10.50 K
BT Anomaly (3.9 um)6.57 K
Maximum Observed - Clear RTM BT (3.9 um)18.03 K
Maximum Observed BTD (3.9-10/11/12 um)22.11 K
Observed - Background BTD (3.9-10/11/12 um)10.23 K
BTD Anomaly (3.9-10/11/12 um)5.24 K
Similar Pixel Count11
BT Time Tendency (3.9 um)7.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.93
Fraction of Surrounding Red Channel Pixels that are Brighter0.74
Maximum Radiative Power29.80 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.40°
Mean Solar Zenith Angle 38.60°
Mean Glint Angle73.40°
Water Fraction0.00
Total Pixel Area 6.00 km2
Latest Satellite Imagery:
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