806
FNUS76 KLOX 200154
FWSLOX

Spot Forecast for Drum Fire...Santa Barbara County Fire
National Weather Service Los Angeles/Oxnard CA
654 PM PDT Wed Aug 19 2026

If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Relatively light winds expected to follow a diurnal pattern,
shifting downslope/valley at 20 foot, and north-northeast at
ridgetops by 9-11pm. There is a 30% chance for no marine layer
clouds tonight, and clouds may stay below the ridgetops if they do
form. Minimal changes tomorrow compared to today, except for a
couple degrees of warming, thus slightly lower minimum RH. Winds are
expected to be a touch lighter, with no significantly windy
conditions expected.


.REST OF TONIGHT...

Sky/weather.........Clear, becoming cloudy with patchy fog through the night.
Min temperature.....62-64.
Max humidity........65 percent, increasing to 95-100 percent.
Wind (20 ft)........Upslope winds 4-7 mph with gusts to 10 mph becoming
                    downslope 3-6 mph with gusts to 8 mph by 9-11 pm.
Ridgetop wind.......Northwest winds 5-8 mph with gusts to 12 mph becoming
                    north-northeast 4-7 mph with gusts to 10 mph by 9-11 pm.
Mixing height.......1000 ft AGL decreasing to 500 ft AGL.

.THURSDAY...

Sky/weather.........Cloudy with patchy morning fog, becoming clear.
Max temperature.....84-86.
Min humidity........35-40 percent.
Wind (20 ft)........Downslope 0-2 mph with gusts to 4 mph, becoming upslope
                    4-7 mph with gusts to 10 mph in the afternoon.
Ridgetop wind.......Northeast 2-4 mph with gusts to 6 mph, becoming northwest
                    7-10 mph with gusts to 12 mph in the afternoon.
Mixing height.......500 ft AGL becoming 3000 ft AGL.


$$
Forecaster...LEWIS
Requested by...Chief Duty Officer
Type of request...WILDFIRE
.TAG 2620051.0/LOX
.DELDT 08/19/26
.FormatterVersion 2.0.0
.EMAIL oemdutyofficer@countyofsb.org,rfccdutyofficer@sbcfire.com