FNUS76 KSTO 201804
FWSSTO

SPOT FORECAST FOR SAC NWR TULES...U.S FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE SACRAMENTO CA
1004 AM PST TUE JAN 20 2009

#007-09

FORECAST IS BASED ON IGNITION TIME OF 1200 PST ON JANUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...THE BURN SITE WILL BE IN BETWEEN WEATHER SYSTEMS
TODAY WITH HIGH PRESSURE TO THE EAST OVER THE GREAT BASIN...AND A
LOW PRESSURE TROUGH APPROACHING FROM THE WEST. THE FLOW ALOFT HAS
TURNED SOUTHERLY AND IS BEGINNING TO SPREAD SOME HIGH CLOUDINESS
NORTHWARD INTO THE CENTRAL VALLEY. HOWEVER...WEAK NORTHERLY
SURFACE PRESSURE GRADIENTS ARE STILL CAUSING LIGHT NORTH WINDS
THROUGHOUT MUCH OF THE SACRAMENTO VALLEY. AS THE LOW PRESSURE TROUGH
OFF THE COAST MOVES SLOWLY EASTWARD TONIGHT AND WEDNESDAY...CLOUDS
WILL INCREASE/THICKEN...POSSIBLY LEADING TO SOME LIGHT RAIN LATE
WEDNESDAY...BUT MAINLY WEDNESDAY NIGHT...AND POSSIBLY INTO
THURSDAY. WETTING RAIN IS EXPECTED AT THE BURN SITE WEDNESDAY NIGHT
AND THURSDAY.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........24-30 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHWEST 5 TO 10 MPH...DIMINISHING BY EVENING.
CWR.................0 PERCENT.
MIXING HEIGHT.......2000-2500 FT AGL.
MIXING WINDS........NORTHWEST AT 5 MPH.

.TONIGHT...

SKY/WEATHER.........INCREASING/THICKENING CLOUDS AFTER MIDNIGHT.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........85-90 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHWEST TO NORTH 2 TO 6 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......LOWERING TO GROUND LEVEL.
MIXING WINDS........NORTHWEST TO NORTH LESS THAN 5 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. LIGHT SHOWERS OR SPRINKLES
                    POSSIBLE IN THE AFTERNOON BUT NO WETTING RAIN
                    UNTIL WEDNESDAY NIGHT.
MAX TEMPERATURE.....60-66.
MIN HUMIDITY........40-45 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTH TO SOUTHEAST WINDS 4 TO 8 MPH.
CWR.................LESS THAN 10 PERCENT.
MIXING HEIGHT.......RISING TO 1500 TO 2000 FT AGL.
MIXING WINDS........SOUTH TO SOUTHEAST 5 TO 10 MPH.


FORECASTER...JHM
REQUESTED BY...KIPP MORRILL
REASON FOR REQUEST...PRESCRIBED
.TAG 20090120.SACNW.01/STO

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