FNUS76 KHNX 080626
FWSHNX

SPOT FORECAST FOR VERNON...YOSEMITE NATIONAL PARK
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
1126 PM PDT TUE SEP 7 2010

FORECAST IS BASED ON REQUEST TIME OF 1610 PDT ON SEPTEMBER 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.


.DISCUSSION...AN UPPER LEVEL TROUGH WILL BRING INCREASED MOISTURE
AND INSTABILITY AS IT PUSHES THROUGH THE REGION WEDNESDAY AND
WEDNESDAY NIGHT. THIS WILL CREATE A SLIGHT CHANCE FOR SHOWERS AND
POSSIBLY A THUNDERSTORM OVER THE FIRE SITE WEDNESDAY AFTERNOON AND
AN INCREASED CHANCE FOR SHOWERS WEDNESDAY NIGHT. INCREASED WINDS AND
MUCH COOLER TEMPERATURES WILL ALSO ACCOMPANY THE PASSING SYSTEM. THE
COOLER AND MORE HUMID CONDITIONS WILL LINGER THURSDAY BEHIND THE
DEPARTING SYSTEM. BUILDING HIGH PRESSURE OVER THE WEST COAST WILL
THEN BRING A GRADUAL WARMING AND DRYING TREND THROUGH THE WEEKEND.


.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY WITH A
                    SLIGHT CHANCE OF A SHOWER OR THUNDERSTORM.
MAX TEMPERATURE.....60-64.
MIN HUMIDITY........35-40 PERCENT.
EYE LEVEL WINDS.....WESTERLY 10-15 MPH.
SURROUNDING RIDGE...SOUTH TO SOUTHWEST 12-24 MPH.
MIXING HEIGHT.......RISING TO AROUND 4500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 20 MPH.

.WEDNESDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS.
MIN TEMPERATURE.....34-38.
MAX HUMIDITY........65-70 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST 5-10 MPH.
SURROUNDING RIDGE...SOUTH TO SOUTHWEST 12-24 MPH.
MIXING HEIGHT.......LOWERING TO AROUND 1000 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 13 MPH.

.THURSDAY...

SKY/WEATHER.........BECOMING MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS
                    IN THE MORNING.
MAX TEMPERATURE.....58-62.
MIN HUMIDITY........39-44 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST TO WEST 5-10 MPH.
SURROUNDING RIDGE...WEST TO NORTHWEST 7-14 MPH.
MIXING HEIGHT.......RISING TO AROUND 9000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 8 MPH.



.EXTENDED OUTLOOK...
.FRIDAY...
CLEAR. TEMPERATURES UP 2-4 DEGREES. MINIMUM RH DOWN 2-4 PERCENT.
20-FOOT WINDS...
   SLOPES...........UPSLOPE/UPVALLEY 4-12 MPH.
   RIDGES...........SOUTHWEST 3-13 MPH.

.SATURDAY...
CLEAR. TEMPERATURES UP 3-9 DEGREES. MINIMUM RH DOWN 4-10 PERCENT.
20-FOOT WINDS...
   SLOPES...........UPSLOPE/UPVALLEY 3-8 MPH.
   RIDGES...........SOUTHWEST 3-7 MPH.

.SUNDAY...
CLEAR. TEMPERATURES UP 1-3 DEGREES. MINIMUM RH LITTLE CHANGE.
   SLOPES...........UPSLOPE/UPVALLEY 3-8 MPH.
   RIDGES...........SOUTHWEST 3-7 MPH.


FORECASTER...BAGNALL
$$REQUESTED BY...MEREDITH WENDT
TYPE OF REQUEST...WILDFIRE
.TAG 20100907.VERNO.01/HNX