FNUS75 KLKN 211923
FWSLKN

SPOT FORECAST FOR 21 MILE RX...NDF
NATIONAL WEATHER SERVICE ELKO NV
1223 PM PDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1140 PDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL WEAKEN WEDNESDAY AND THURSDAY...
AHEAD OF A COLD FRONT THAT WILL MOVE ACROSS THE AREA THURSDAY
NIGHT AND FRIDAY. ISOLATED THUNDERSTORMS WEDNESDAY AFTERNOON
SHOULD REMAIN NORTH OF THE AREA ACROSS SOUTHERN IDAHO. ISOLATED
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THURSDAY AFTERNOON AND
EVENING IN THE VICINITY OF THE BURN AREA. CONDITIONS WILL BE
BREEZY WEDNESDAY AND WINDY THURSDAY. TEMPERATURES WILL BE VERY
WARM WEDNESDAY...COOLING A FEW DEGREES THURSDAY DUE TO INCREASED
CLOUD COVER...AND COOLING FURTHER FRIDAY BEHIND THE COLD FRONT.
THE BEST CHANCE FOR MEASURABLE RAIN THROUGH THE NEXT SEVERAL DAYS
WILL BE THURSDAY NIGHT AND FRIDAY. CONDITIONS WILL REMAIN
COOL SATURDAY AND SUNDAY...AND MAINLY DRY WITH PARTLY CLOUDY
SKIES.


.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........60-65%.
20-FOOT WINDS.......DOWNSLOPE/DOWN VALLEY.
MIXING HEIGHT.......7000 TO 8000 FT MSL.
TRANSPORT WINDS.....DOWNSLOPE/DOWN VALLEY.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....77-82.
MIN HUMIDITY........14-17%.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING...
                    INCREASING TO 15 TO 25 MPH MIDDAY.
MIXING HEIGHT.......18000 FT MSL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.

.WEDNESDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........55-60%.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......7500 TO 8500 FT MSL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS OR THUNDERSTORMS.
MAX TEMPERATURE.....72-77.
MIN HUMIDITY........14-17%.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 20 MPH IN THE MORNING...
                    INCREASING TO 20 TO 30 MPH MIDDAY.
MIXING HEIGHT.......16000 FT MSL.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.


$$
FORECASTER...ARKELL
REQUESTED BY...SAM HICKS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.21MIL.01/LKN