FNUS76 KMTR 041834

FWSMTR



Spot Forecast for Lake Islanjo Piles...California State Parks

National Weather Service San Francisco CA

1134 AM PDT Mon May 4 2026



Forecast is based on ignition time of 0900 PDT on May 05. 

If conditions become unrepresentative, contact the National Weather

Service.



.DISCUSSION...Wetting rains are expected overnight Monday into 

the early part of Tuesday morning with rain totals of around half 

an inch moistening the fuel bed, but the chance for showers will 

diminish by ignition time. Winds will be diurnally driven with 

light and terrain-driven winds overnight into the morning before a

gentle southwest breeze develops in the afternoon and evening 

hours. Humidity retention will be good during the day with

excellent recoveries overnight. The extended outlook past

Wednesday features a drying and warming trend with temperatures

much above the seasonal average for the upcoming weekend.



.TUESDAY...



Sky/weather.........Partly sunny. 

Max temperature.....66-70. 

Min humidity........66-71 percent. 

Wind (20 ft)........Light, terrain-driven winds in the morning, becoming 

                    southwest 6 to 12 mph in the afternoon. 

CWR.................3 percent. 

Chance of thunder...3 percent. 

Mixing height.......2800 ft AGL. 

Transport winds.....West around 7 mph. 

Marine layer........None. 



.TUESDAY NIGHT...



Sky/weather.........Partly cloudy then becoming mostly cloudy. 

                    Patchy fog overnight. 

Min temperature.....46-51. 

Max humidity........94-100 percent. 

Wind (20 ft)........Southwest winds 6 to 12 mph in the evening 

                    becoming light and terrain-driven overnight. 

CWR.................0 percent. 

Chance of thunder...0 percent. 

Mixing height.......200 ft AGL. 

Transport winds.....West around 6 mph. 

Marine layer........None. 



.WEDNESDAY...



Sky/weather.........Partly sunny then becoming sunny. Areas of fog 

                    in the morning. 

Max temperature.....72-77. 

Min humidity........60-65 percent. 

Wind (20 ft)........Light, terrain-driven winds in the morning, becoming 

                    southwest 6 to 12 mph in the afternoon. 

CWR.................0 percent. 

Chance of thunder...0 percent. 

Mixing height.......3000 ft AGL. 

Transport winds.....Northwest around 5 mph. 

Marine layer........2500ft. 



$$

Forecaster...D_HOANG

Requested by...Maxwell Psaledakis

Type of request...PRESCRIBED

.TAG 2612339.0/MTR

.DELDT 05/04/26

.FormatterVersion 2.0.0

.EMAIL Steve.Millosovich@fire.ca.gov,sean.jerry@fire.ca.gov,maxwell.psaledakis@parks.ca.gov,naftali.moed@parks.ca.gov