Wildfire Alert
Aid: 812474
Alert Type: Possible Wildfire
Date: 2024-08-17 21:21:19 Show details

Basic Information
State/Province(s) WA
Country/Countries USA
County/Locality(s) Snohomish County, WA
NWS WFO Seattle WA
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2024-08-17 21:21:24UTC
Radiative Center (Lat, Lon): 48.220000°, -121.110000°
Nearby Counties (meeting alert criteria):
  • Snohomish County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power148.79 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Risk, Known Incident: SULPHUR FOUR (HIGH, tdiff=8.83116 days, PERIMETER)
Event Priority Ranking4
Maximum Observed BT (3.9 um)315.10 K
Observed - Background BT (3.9 um)13.66 K
BT Anomaly (3.9 um)6.97 K
Maximum Observed - Clear RTM BT (3.9 um)19.88 K
Maximum Observed BTD (3.9-10/11/12 um)25.07 K
Observed - Background BTD (3.9-10/11/12 um)13.07 K
BTD Anomaly (3.9-10/11/12 um)8.96 K
Similar Pixel Count0
BT Time Tendency (3.9 um)12.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.83
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power78.79 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 57.80°
Mean Solar Zenith Angle 37.80°
Mean Glint Angle95.30°
Water Fraction0.00
Total Pixel Area 17.90 km2
Latest Satellite Imagery:
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