Please consider accessing NGFS detections and satellite imagery through the NOAA/NESDIS Wildland Fire Data Portal: https://fire.data.nesdis.noaa.gov/map/
Wildfire Notification Report
| Date: | 2026-04-21 |
|---|---|
| Time: | 19:21:17 |
| Production Date and Time: | 2026-04-21 19:26:02 UTC |
| Primary Instrument: | GOES-18 ABI |
| Wmo Spacecraft Id: | 665 |
| Location/orbit: | GEO |
| L1 File: | OR_ABI-L1b-RadC-M6C14_G18_s20261111921171_e20261111923544_c20261111924034.nc |
| L1 File(s) - Temporal | OR_ABI-L1b-RadC-M6C14_G18_s20261111916171_e20261111918544_c20261111919042.nc |
| Number Of Thermal Anomaly Notifications: | 3 |
More details ▼
Hide details ▲
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | WA |
| Country/Countries | United States |
| County/Locality(s) | Pend Oreille County, WA |
| NWS WFO | Spokane WA |
| Identification Method | Enhanced Contextual (Cloud) |
| Mean Object Date/Time | 2026-04-21 19:21:23UTC |
| Radiative Center (Lat, Lon): | 48.460278°, -117.405830° |
| Nearby Counties (meeting notification criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 34.69 MW |
| Map: | |
| Additional Information | |
| Notification Status | New Feature |
| Type of Event | Nominal Fire Risk, Known Incident: NP RX - RANKIN TIMBER SALE (HIGH, tdiff=0.17793 days, Point) |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 304.85 K |
| Observed - Background BT (3.9 um) | 7.90 K |
| BT Anomaly (3.9 um) | 7.16 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 10.04 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 16.51 K |
| Observed - Background BTD (3.9-10/11/12 um) | 7.97 K |
| BTD Anomaly (3.9-10/11/12 um) | 9.32 K |
| Similar Pixel Count | 0 |
| BT Time Tendency (3.9 um) | 3.20 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.88 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.93 |
| Maximum Radiative Power | 34.69 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 59.10° |
| Mean Solar Zenith Angle | 37.30° |
| Mean Glint Angle | 90.60° |
| 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) | Chouteau County, MT |
| NWS WFO | Great Falls MT |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2026-04-21 19:21:23UTC |
| Radiative Center (Lat, Lon): | 47.829723°, -110.635834° |
| Nearby Counties (meeting notification criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 20.86 MW |
| Map: | |
| Additional Information | |
| Notification Status | New Feature |
| Type of Event | Nominal Fire Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 313.98 K |
| Observed - Background BT (3.9 um) | 1.82 K |
| BT Anomaly (3.9 um) | 1.49 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 14.41 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 13.34 K |
| Observed - Background BTD (3.9-10/11/12 um) | 2.96 K |
| BTD Anomaly (3.9-10/11/12 um) | 7.87 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 | 0.09 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 1.00 |
| Maximum Radiative Power | 20.86 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 61.00° |
| Mean Solar Zenith Angle | 36.30° |
| Mean Glint Angle | 92.20° |
| Water Fraction | 0.00 |
| Total Pixel Area | 8.20 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |
Possible Wildfire
| Basic Information | |
|---|---|
| State/Province(s) | MT |
| Country/Countries | United States |
| County/Locality(s) | Fergus County, MT |
| NWS WFO | Great Falls MT |
| Identification Method | Enhanced Contextual (Clear) |
| Mean Object Date/Time | 2026-04-21 19:21:24UTC |
| Radiative Center (Lat, Lon): | 46.896667°, -109.737221° |
| Nearby Counties (meeting notification criteria): |
|
| Total Radiative Power Anomaly | n/a |
| Total Radiative Power | 26.47 MW |
| Map: | |
| Additional Information | |
| Notification Status | New Feature |
| Type of Event | Nominal Fire Risk |
| Event Priority Ranking | 4 |
| Maximum Observed BT (3.9 um) | 312.89 K |
| Observed - Background BT (3.9 um) | 4.12 K |
| BT Anomaly (3.9 um) | 2.68 K |
| Maximum Observed - Clear RTM BT (3.9 um) | 16.61 K |
| Maximum Observed BTD (3.9-10/11/12 um) | 12.91 K |
| Observed - Background BTD (3.9-10/11/12 um) | 3.74 K |
| BTD Anomaly (3.9-10/11/12 um) | 7.55 K |
| Similar Pixel Count | 20 |
| BT Time Tendency (3.9 um) | 4.00 K |
| Image Interval | 5.00 minutes |
| Fraction of Surrounding LWIR Pixels that are Colder | 0.76 |
| Fraction of Surrounding Red Channel Pixels that are Brighter | 0.94 |
| Maximum Radiative Power | 26.47 MW |
| Maximum Radiative Power Uncertainty | 0.00 MW |
| Total Radiative Power Uncertainty | 0.00 MW |
| Mean Viewing Angle | 60.50° |
| Mean Solar Zenith Angle | 35.40° |
| Mean Glint Angle | 91.00° |
| Water Fraction | 0.00 |
| Total Pixel Area | 8.10 km2 |
| Latest Satellite Imagery: | |
| View all event imagery » | |