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: | 2025-12-04 |
|---|---|
| Time: | 21:26:18 |
| Production Date and Time: | 2025-12-04 21:31:12 UTC |
| Primary Instrument: | GOES-18 ABI |
| Wmo Spacecraft Id: | 665 |
| Location/orbit: | GEO |
| L1 File: | OR_ABI-L1b-RadC-M6C14_G18_s20253382126187_e20253382128560_c20253382129070.nc |
| L1 File(s) - Temporal | OR_ABI-L1b-RadC-M6C14_G18_s20253382121187_e20253382123560_c20253382124065.nc |
| Number Of Thermal Anomaly Alerts: | 3 |
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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 | 2025-12-04 21:26:53UTC |
| Radiative Center (Lat, Lon): | 41.765556°, -123.191948° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 5.80 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 291.19 K |
| Observed - Background BT (3.9 um) | 3.56 K |
| BT Anomaly (3.9 um) | 2.00 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 12.42 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 10.44 K |
| Observed - Background BTD (3.9-10/11/12 um) | 3.31 K |
| BTD Anomaly (3.9-10/11/12 um) | 3.56 K |
| Similar Pixel Count | 17 |
| BT Time Tendency (3.9 um) | 0.60 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.66 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.77 |
| Maximum Radiative Power | 5.80 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 50.50° |
| Mean Solar Zenith Angle | 66.60° |
| Mean Glint Angle | 117.20° |
| 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) | Solano County, CA |
| NWS WFO | Sacramento CA |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-12-04 21:26:54UTC |
| Radiative Center (Lat, Lon): | 38.419445°, -121.831390° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 17.99 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | Nominal Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 297.08 K |
| Observed - Background BT (3.9 um) | 6.68 K |
| BT Anomaly (3.9 um) | 9.17 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 14.54 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 15.71 K |
| Observed - Background BTD (3.9-10/11/12 um) | 7.49 K |
| BTD Anomaly (3.9-10/11/12 um) | 5.01 K |
| Similar Pixel Count | 14 |
| BT Time Tendency (3.9 um) | 5.00 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.62 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.74 |
| Maximum Radiative Power | 17.99 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 47.50° |
| Mean Solar Zenith Angle | 63.90° |
| Mean Glint Angle | 111.40° |
| Water Fraction | 0.00 |
| Total Pixel Area | 5.90 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | CA |
| Country/Countries | United States |
| County/Locality(s) | Los Angeles County, CA |
| NWS WFO | Los Angeles/Oxnard CA |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2025-12-04 21:27:24UTC |
| Radiative Center (Lat, Lon): | 33.898888°, -118.399445° |
| Nearby Counties (meeting alert criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 95.25 MW |
| Map: | |
| Additional Information | |
| Alert Status | New Feature |
| Type of Event | VIIRS 375m static sources 2013_2018 |
| Event Priority Ranking | 5 |
| Maximum Observed BT (3.9 um) | 310.97 K |
| Observed - Background BT (3.9 um) | 7.95 K |
| BT Anomaly (3.9 um) | 4.95 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 22.57 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 14.93 K |
| Observed - Background BTD (3.9-10/11/12 um) | 8.50 K |
| BTD Anomaly (3.9-10/11/12 um) | 17.37 K |
| Similar Pixel Count | 4 |
| BT Time Tendency (3.9 um) | 8.70 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.58 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.56 |
| Maximum Radiative Power | 48.81 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 44.40° |
| Mean Solar Zenith Angle | 61.00° |
| Mean Glint Angle | 105.30° |
| Water Fraction | 0.20 |
| Total Pixel Area | 22.40 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
