FNUS75 KSLC 031744
FWSSLC

SPOT FORECAST FOR TWITCHELL CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1144 AM MDT TUE AUG 3 2010

.DISCUSSION...MOISTURE REMAINS IN PLACE ACROSS THE SOUTHERN HALF OF
UTAH THIS MORNING...WHICH WILL ONCE AGAIN ALLOW FOR SCATTERED
THUNDERSTORMS NEAR THE FIRE TODAY. WITH A SLIGHT INCREASE IN
SOUTHWESTERLY FLOW ALOFT TODAY...IT IS EXPECTED THAT NEAR-SURFACE
WINDS AT THE FIRE WILL BECOME MORE SOUTHWESTERLY AS THE DAY GOES
ON...AND COULD EVEN BECOME GUSTY IN THE LATTER HALF OF THE
AFTERNOON.

ANY THUNDERSTORMS IN THE AREA WILL HAVE THE POTENTIAL TO CAUSE
GUSTY ERRATIC WINDS...AS WELL AS LIGHTNING AND HEAVY RAINFALL.
THE THUNDERSTORM THREAT CONTINUES INTO WEDNESDAY...WITH WINDS
BECOMING MORE SOUTHERLY ACROSS THE AREA.



.TODAY...
LAL...................1 UNTIL NOON...THEN 4.
HAINES INDEX..........5 ..MODERATE.
CLEARING INDEX........970.
SKY/WEATHER...........PARTLY CLOUDY (25-35 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN MOSTLY CLOUDY (65-75
                      PERCENT CLOUD COVER). SCATTERED SHOWERS
                      AND THUNDERSTORMS AFTER NOON.
MAX TEMPERATURE.......75-78.
MIN HUMIDITY..........32-35 PERCENT.
WIND (20 FT)..........SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS UP TO
                      15 MPH IN THE AFTERNOON.

.TONIGHT...
LAL...................4 UNTIL MIDNIGHT...THEN 2.
HAINES INDEX..........4 ..LOW.
SKY/WEATHER...........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER)
                      UNTIL MIDNIGHT...THEN PARTLY CLOUDY (35-45
                      PERCENT CLOUD COVER). SCATTERED SHOWERS AND
                      THUNDERSTORMS UNTIL MIDNIGHT...THEN A SLIGHT
                      CHANCE OF SHOWERS AND THUNDERSTORMS.
MIN TEMPERATURE.......53-56.
MAX HUMIDITY..........65-68 PERCENT.
WIND (20 FT)..........SOUTH WINDS 5 TO 10 MPH.

.OUTLOOK FOR WEDNESDAY...
LAL...................2 UNTIL NOON...THEN 4.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........940.
SKY/WEATHER...........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
                      THE MORNING...THEN A CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.......74-78.
MIN HUMIDITY..........32-36 PERCENT.
WIND (20 FT)..........SOUTH WINDS 5 TO 10 MPH.



FORECASTER...SCHOENING
REQUESTED BY...CLAY MATHESON
REASON FOR REQUEST...WILDFIRE
.TAG 20100803.TWITC.01/SLC

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