Northern California fires

August 26th, 2021 |

The 2021 northern California wild fire season is still active. It is difficult to see smoke using the VIIRS SNPP day night band (0.7 micron) at night, but there are visible bright spots of the Caldor Fire near Lake Tahoe. The VIIRS I04 (3.74 micron) band shows bright spots of hot fires in northern California. Names of fires were taken from the CAL FIRE website here.

A three panel animation on 08/26/21 at 08:56Z showing the VIIRS I04 band over northern California, the I04 band with fires labeled, and the VIIRS day-night band.

For smoke forecasts, the NOAA Earth System Research Laboratories Global Systems Division runs the High-Resolution Rapid Refresh (HRRR) Smoke modeling system, which can be viewed here. Dynamics and physics come from the HRRR experimental model and fire emission information is from real-time satellite observations from VIIRS which is flown aboard NOAA-20 and Suomi-NPP.

The HRRR 8-hr forecast for vertically integrated smoke for 08/26/21 at 1500Z.

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