717
FNUS76 KMTR 142339
FWSMTR

Spot Forecast for Knob II RX - Unit B...Marin County Fire Department
National Weather Service San Francisco CA
439 PM PDT Thu Aug 14 2025

Forecast is based on ignition time of 1551 PDT on August 14.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Gusty onshore winds will persist through Friday night.
The 4:00p PDT balloon launch out of Oakland measured the marine layer
at around 1800ft. Westerly wind gusts may reach up to 30 MPH at times
tonight and Friday, easing slightly on Saturday. Expect good to excellent
overnight RH recovery both nights.

.TONIGHT...

Sky/weather.........Clear.
Min temperature.....55-59.
Max humidity........73-77 percent.
Wind (20 ft)........West winds 10 to 23 mph, with gusts up to 30 mph.
CWR.................0 percent.
Chance of thunder...0 percent.
Mixing height.......200 ft AGL.
Transport winds.....Northwest around 14 mph.
Marine layer........1800ft.

.FRIDAY...

Sky/weather.........Sunny.
Max temperature.....80-84.
Min humidity........50-54 percent.
Wind (20 ft)........Breezy. West winds 9 to 12 mph increasing to 14
                    to 28 mph in the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.
Mixing height.......1100 ft AGL.
Transport winds.....Northwest around 14 mph.
Marine layer........1500ft.

.FRIDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....59-63.
Max humidity........81-85 percent.
Wind (20 ft)........Breezy. West winds 15 to 21 mph, with gusts to 29
                    mph in the afternoon.
CWR.................1 percent.
Chance of thunder...0 percent.
Mixing height.......400 ft AGL.
Transport winds.....Northwest around 22 mph.
Marine layer........1500ft.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....80-84.
Min humidity........54-58 percent.
Wind (20 ft)........West winds 15 to 21 mph.
CWR.................3 percent.
Chance of thunder...1 percent.
Mixing height.......1600 ft AGL.
Transport winds.....Northwest around 19 mph.
Marine layer........1500ft.

$$
Forecaster...J_MERCHANT
Requested by...Jeremiah Hanks
Type of request...PRESCRIBED
.TAG 2519851.1/MTR
.DELDT 08/14/25
.FormatterVersion 2.0.0
.EMAIL jeremiah.hanks@marincounty.gov