516
FNUS76 KMTR 031025
FWSMTR

Spot Forecast for Castle Hill- Piles...Contra Costa County Fire
National Weather Service San Francisco CA
325 AM PDT Fri May 3 2024

Forecast is based on ignition time of 0900 PDT on May 03.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A nocturnal inversion will limit smoke dispersion until
the late morning when the surface temperature climbs into the mid
60s. Otherwise conditions look good for a pile burn with moderate
humidity and gentle wind. A cold front will bring rain, strong winds,
cold temperatures and high humidity on Saturday.


.REST OF TODAY...

Sky/weather.........Sunny.
Max temperature.....71-75.
Min humidity........37-41 percent.
Wind (20 ft)........North winds 4 to 10 mph in the morning shifting
to West winds 5 to 13 mph in the afternoon.
CWR.................0 percent.
LAL.................1.
Mixing height.......500 ft AGL increasing to 3300 ft AGL by noon.
Transport winds.....West around 9 mph. Marine layer........None.

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy. Rain
                    overnight.
Min temperature.....49-53.
Max humidity........94-98 percent.
Wind (20 ft)........Southwest winds 12 to 15 mph with gusts to
                    around 19 mph.
CWR.................4 percent.
LAL.................1.
Mixing height.......800 ft AGL.
Transport winds.....West around 14 mph.
Marine layer........None.

.SATURDAY...

Sky/weather.........Cloudy. Rain in the morning, then rain likely
                    in the afternoon.
Max temperature.....55-59.
Min humidity........63-67 percent.
Wind (20 ft)........Southwest winds 13 to 18 mph with gusts to
                    around 24 mph.
CWR.................94 percent.
LAL.................1.
Mixing height.......3700 ft AGL.
Transport winds.....West around 18 mph.
Marine layer........None.

$$
Forecaster...D_FLYNN
Requested by...Aaron Brunton
Type of request...PRESCRIBED
.TAG 2412637.1/MTR
.DELDT 05/03/24
.FormatterVersion 2.0.0
.EMAIL abrun@cccfpd.org