Wildfire Alert Report
| Date: | 2025-04-21 |
|---|---|
| Time: | 17:31:17 |
| Production Date and Time: | 2025-04-21 17:35:56 UTC |
| Primary Instrument: | GOES-18 ABI |
| Wmo Spacecraft Id: | 665 |
| Location/orbit: | GEO |
| L1 File: | OR_ABI-L1b-RadC-M6C14_G18_s20251111731173_e20251111733546_c20251111734043.nc |
| L1 File(s) - Temporal | OR_ABI-L1b-RadC-M6C14_G18_s20251111726173_e20251111728546_c20251111729046.nc |
| Number Of Thermal Anomaly Alerts: | 3 |
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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 Method | Enhanced Contextual (Cloud) |
| Mean Object Date/Time | 2025-04-21 17:31:23UTC |
| Radiative Center (Lat, Lon): | 47.798332°, -110.589447° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 39.33 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 301.18 K |
| Observed - Background BT (3.9 um) | 8.19 K |
| BT Anomaly (3.9 um) | 5.49 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 15.23 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 20.89 K |
| Observed - Background BTD (3.9-10/11/12 um) | 8.24 K |
| BTD Anomaly (3.9-10/11/12 um) | 5.01 K |
| Similar Pixel Count | 0 |
| BT Time Tendency (3.9 um) | 7.70 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.63 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.60 |
| Maximum Radiative Power | 39.33 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 60.90° |
| Mean Solar Zenith Angle | 42.90° |
| Mean Glint Angle | 78.20° |
| Water Fraction | 0.00 |
| Total Pixel Area | 8.20 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | CA |
| Country/Countries | United States |
| County/Locality(s) | Siskiyou County, CA |
| NWS WFO | Medford OR |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-04-21 17:31:53UTC |
| Radiative Center (Lat, Lon): | 41.754723°, -122.665558° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 8.06 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 296.62 K |
| Observed - Background BT (3.9 um) | 4.00 K |
| BT Anomaly (3.9 um) | 2.43 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 7.86 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 8.12 K |
| Observed - Background BTD (3.9-10/11/12 um) | 2.85 K |
| BTD Anomaly (3.9-10/11/12 um) | 5.71 K |
| Similar Pixel Count | 13 |
| BT Time Tendency (3.9 um) | 1.20 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.56 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 1.00 |
| Maximum Radiative Power | 8.06 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 50.70° |
| Mean Solar Zenith Angle | 45.80° |
| Mean Glint Angle | 69.00° |
| Water Fraction | 0.00 |
| Total Pixel Area | 6.30 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | CA |
| Country/Countries | United States |
| County/Locality(s) | Butte County, CA |
| NWS WFO | Sacramento CA |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-04-21 17:31:53UTC |
| Radiative Center (Lat, Lon): | 39.781666°, -122.023331° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 14.42 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 301.14 K |
| Observed - Background BT (3.9 um) | 3.27 K |
| BT Anomaly (3.9 um) | 2.60 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 9.14 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 9.41 K |
| Observed - Background BTD (3.9-10/11/12 um) | 4.01 K |
| BTD Anomaly (3.9-10/11/12 um) | 6.57 K |
| Similar Pixel Count | 2 |
| BT Time Tendency (3.9 um) | 2.60 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.10 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 1.00 |
| Maximum Radiative Power | 14.42 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 48.80° |
| Mean Solar Zenith Angle | 44.40° |
| Mean Glint Angle | 65.40° |
| Water Fraction | 0.00 |
| Total Pixel Area | 6.10 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
