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: | 2024-08-17 |
|---|---|
| Time: | 21:21:19 |
| Production Date and Time: | 2024-08-17 21:25:51 UTC |
| Primary Instrument: | GOES-18 ABI |
| Wmo Spacecraft Id: | 665 |
| Location/orbit: | GEO |
| L1 File: | OR_ABI-L1b-RadC-M6C14_G18_s20242302121190_e20242302123563_c20242302124057.nc |
| L1 File(s) - Temporal | OR_ABI-L1b-RadC-M6C14_G18_s20242302116190_e20242302118563_c20242302119049.nc |
| Number Of Thermal Anomaly Alerts: | 1 |
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Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | WA |
| Country/Countries | USA |
| County/Locality(s) | Snohomish County, WA |
| NWS WFO | Seattle WA |
| Identification Method | Enhanced Contextual (Cloud) |
| Mean Object Date/Time | 2024-08-17 21:21:24UTC |
| Radiative Center (Lat, Lon): | 48.220000°, -121.110000° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 148.79 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk, Known Incident: SULPHUR FOUR (HIGH, tdiff=8.83116 days, PERIMETER) |
| Event Priority Ranking | 4 |
| 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 Count | 0 |
| BT Time Tendency (3.9 um) | 12.60 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.83 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 1.00 |
| Maximum Radiative Power | 78.79 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 57.80° |
| Mean Solar Zenith Angle | 37.80° |
| Mean Glint Angle | 95.30° |
| Water Fraction | 0.00 |
| Total Pixel Area | 17.90 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
