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: | 2025-08-23 |
|---|---|
| Time: | 01:40:55 |
| Production Date and Time: | 2025-08-23 01:41:36 UTC |
| Primary Instrument: | GOES-18 ABI |
| Wmo Spacecraft Id: | 665 |
| Location/orbit: | GEO |
| L1 File: | OR_ABI-L1b-RadM2-M6C14_G18_s20252350140555_e20252350141013_c20252350141070.nc |
| L1 File(s) - Temporal | NONE |
| Number Of Thermal Anomaly Alerts: | 6 |
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Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | MT |
| Country/Countries | United States |
| County/Locality(s) | Powell County, MT |
| NWS WFO | Missoula MT |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-08-23 01:40:56UTC |
| Radiative Center (Lat, Lon): | 46.731388°, -112.894165° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 45.20 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 300.18 K |
| Observed - Background BT (3.9 um) | 11.55 K |
| BT Anomaly (3.9 um) | 11.03 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 12.82 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 14.92 K |
| Observed - Background BTD (3.9-10/11/12 um) | 12.67 K |
| BTD Anomaly (3.9-10/11/12 um) | 25.34 K |
| Similar Pixel Count | 1 |
| BT Time Tendency (3.9 um) | -999.00 K |
| Image Interval | -999.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.05 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.94 |
| Maximum Radiative Power | 45.20 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 59.10° |
| Mean Solar Zenith Angle | 82.50° |
| Mean Glint Angle | 104.70° |
| Water Fraction | 0.00 |
| Total Pixel Area | 7.80 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | MT |
| Country/Countries | United States |
| County/Locality(s) | Madison County, MT |
| NWS WFO | Great Falls MT |
| Identification Method | Enhanced Contextual (Cloud) |
| Mean Object Date/Time | 2025-08-23 01:40:56UTC |
| Radiative Center (Lat, Lon): | 45.535831°, -112.069443° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 1289.40 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk, Known Incident: Cloudrest (HIGH, tdiff=0.6375 days, Perimeter) |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 347.32 K |
| Observed - Background BT (3.9 um) | 56.72 K |
| BT Anomaly (3.9 um) | 25.99 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 59.44 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 60.42 K |
| Observed - Background BTD (3.9-10/11/12 um) | 57.98 K |
| BTD Anomaly (3.9-10/11/12 um) | 75.66 K |
| Similar Pixel Count | 0 |
| BT Time Tendency (3.9 um) | -999.00 K |
| Image Interval | -999.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.25 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.00 |
| Maximum Radiative Power | 468.80 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 58.30° |
| Mean Solar Zenith Angle | 83.20° |
| Mean Glint Angle | 105.50° |
| Water Fraction | 0.00 |
| Total Pixel Area | 38.00 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | WY |
| Country/Countries | United States |
| County/Locality(s) | Sublette County, WY |
| NWS WFO | Riverton WY |
| Identification Method | Enhanced Contextual (Bias) |
| Mean Object Date/Time | 2025-08-23 01:40:57UTC |
| Radiative Center (Lat, Lon): | 43.317780°, -109.984169° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 8575.21 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk, Known Incident: Dollar Lake (HIGH, tdiff=0.25809 days, Perimeter) |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 403.27 K |
| Observed - Background BT (3.9 um) | 111.40 K |
| BT Anomaly (3.9 um) | 324.78 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 113.99 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 108.22 K |
| Observed - Background BTD (3.9-10/11/12 um) | 105.58 K |
| BTD Anomaly (3.9-10/11/12 um) | 321.50 K |
| Similar Pixel Count | 0 |
| BT Time Tendency (3.9 um) | -999.00 K |
| Image Interval | -999.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 1.00 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.12 |
| Maximum Radiative Power | 2212.64 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 57.20° |
| Mean Solar Zenith Angle | 85.10° |
| Mean Glint Angle | 107.80° |
| Water Fraction | 0.00 |
| Total Pixel Area | 125.60 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | WY |
| Country/Countries | United States |
| County/Locality(s) | Lincoln County, WY |
| NWS WFO | Riverton WY |
| Identification Method | Enhanced Contextual (Cloud) |
| Mean Object Date/Time | 2025-08-23 01:40:57UTC |
| Radiative Center (Lat, Lon): | 42.533890°, -110.946114° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 1140.60 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk, Known Incident: Willow Creek (HIGH, tdiff=0.08895 days, Point) |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 354.01 K |
| Observed - Background BT (3.9 um) | 60.82 K |
| BT Anomaly (3.9 um) | 45.37 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 61.30 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 62.91 K |
| Observed - Background BTD (3.9-10/11/12 um) | 59.11 K |
| BTD Anomaly (3.9-10/11/12 um) | 66.41 K |
| Similar Pixel Count | 0 |
| BT Time Tendency (3.9 um) | -999.00 K |
| Image Interval | -999.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.94 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.17 |
| Maximum Radiative Power | 529.28 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 56.10° |
| Mean Solar Zenith Angle | 84.60° |
| Mean Glint Angle | 107.00° |
| Water Fraction | 0.00 |
| Total Pixel Area | 28.70 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | NV |
| Country/Countries | United States |
| County/Locality(s) | Elko County, NV |
| NWS WFO | Elko NV |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-08-23 01:40:56UTC |
| Radiative Center (Lat, Lon): | 41.651390°, -116.171669° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 81.48 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk, Known Incident: Cottonwood Peak (HIGH, tdiff=0.53183 days, Perimeter) |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 316.87 K |
| Observed - Background BT (3.9 um) | 17.67 K |
| BT Anomaly (3.9 um) | 8.90 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 17.37 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 22.70 K |
| Observed - Background BTD (3.9-10/11/12 um) | 16.79 K |
| BTD Anomaly (3.9-10/11/12 um) | 8.71 K |
| Similar Pixel Count | 1 |
| BT Time Tendency (3.9 um) | -999.00 K |
| Image Interval | -999.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.84 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 1.00 |
| Maximum Radiative Power | 81.48 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 52.90° |
| Mean Solar Zenith Angle | 80.90° |
| Mean Glint Angle | 101.40° |
| Water Fraction | 0.00 |
| Total Pixel Area | 6.60 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | CA |
| Country/Countries | United States |
| County/Locality(s) | Kern County, CA |
| NWS WFO | Hanford CA |
| Identification Method | Enhanced Contextual (Cloud) |
| Mean Object Date/Time | 2025-08-23 01:40:59UTC |
| Radiative Center (Lat, Lon): | 35.583332°, -118.585556° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 100.88 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 324.55 K |
| Observed - Background BT (3.9 um) | 21.99 K |
| BT Anomaly (3.9 um) | 14.45 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 19.53 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 28.57 K |
| Observed - Background BTD (3.9-10/11/12 um) | 20.72 K |
| BTD Anomaly (3.9-10/11/12 um) | 17.61 K |
| Similar Pixel Count | 0 |
| BT Time Tendency (3.9 um) | -999.00 K |
| Image Interval | -999.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.98 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.93 |
| Maximum Radiative Power | 100.88 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 45.90° |
| Mean Solar Zenith Angle | 79.80° |
| Mean Glint Angle | 98.40° |
| Water Fraction | 0.00 |
| Total Pixel Area | 5.80 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
