1850 UTC June 07 2025: NGFS processing has resumed at UW/SSEC. The source of the earlier power outage is being investigated. Additional outages, while not expected, are possible.
Wildfire Alert
Aid: 1048673
Alert Type: Possible Wildfire
Date: 2025-05-13 20:26:17
Show details ▲▼
| Basic Information | |
|---|---|
| State/Province(s) | SD |
| Country/Countries | United States |
| County/Locality(s) | Brule County, SD |
| NWS WFO | Sioux Falls SD |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-05-13 20:26:20UTC |
| Radiative Center (Lat, Lon): | 43.782223°, -99.276665° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 11.59 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk and Red Flag Warning |
| Event Priority Ranking | 1 |
| Maximum Observed BT (3.9 um) | 311.63 K |
| Observed - Background BT (3.9 um) | 2.58 K |
| BT Anomaly (3.9 um) | 2.06 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 13.50 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 9.83 K |
| Observed - Background BTD (3.9-10/11/12 um) | 2.05 K |
| BTD Anomaly (3.9-10/11/12 um) | 2.87 K |
| Similar Pixel Count | 25 |
| BT Time Tendency (3.9 um) | 1.30 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.64 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.88 |
| Maximum Radiative Power | 11.59 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 56.30° |
| Mean Solar Zenith Angle | 34.90° |
| Mean Glint Angle | 65.70° |
| Water Fraction | 0.00 |
| Total Pixel Area | 7.20 km2 |
| Latest Satellite Imagery: | |
