FNUS75 KSLC 191057
FWSSLC

SPOT FORECAST FOR MUTTON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
457 AM MDT THU AUG 19 2010

.DISCUSSION...A BAND OF HEAVY RAIN THAT HAS FALLEN ACROSS THE
MUTTON WILDFIRE SITE OVERNIGHT HAS SHIFTED MOSTLY EAST OF THE
AREA AS OF 430 AM MDT. ADDITIONAL SHOWERS AND THUNDERSTORMS
REMAIN UPSTREAM STRETCHING FROM US HIGHWAY 89 TO ZION NATIONAL
PARK. THESE STORMS ARE EXPECTED TO PASS OVER THE WILDFIRE SITE
OVER THE NEXT 2 HOURS.

SIGNIFICANT MOISTURE REMAINS IN PLACE THIS MORNING...AND LITTLE
DRYING IS EXPECTED UNTIL LATE THIS AFTERNOON. THE COMBINATION OF
THE MOISTURE IN PLACE AND THE APPROACH OF A TROUGH FROM THE WEST
WILL ALLOW FOR CONTINUED SCATTERED SHOWERS AND THUNDERSTORMS
CAPABLE OF WETTING RAINS TODAY. THE AREA IS EXPECTED TO DRY
OVERNIGHT TONIGHT...BUT JUST ENOUGH MOISTURE WILL REMAIN IN PLACE
ON FRIDAY FOR ISOLATED SHOWERS AND STORMS IN THE AFTERNOON.

MOISTURE WILL SURGE IN FROM THE SOUTH AGAIN ON SATURDAY
INCREASING THE THREAT FOR STORMS ONCE AGAIN. ADDITIONALLY...WINDS
ARE EXPECTED TO INCREASE FROM THE SOUTHEAST DURING THE DAY WITH
THE POTENTIAL OF AFTERNOON GUSTS EXCEEDING 25 MPH A LIKELIHOOD.

.TODAY...
LAL...................5 UNTIL NOON...THEN 4.
HAINES INDEX..........3 ..VERY LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........MOSTLY CLOUDY (80-90 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN PARTLY CLOUDY (60-70
                      PERCENT CLOUD COVER). OCCASIONAL SHOWERS AND
                      THUNDERSTORMS UNTIL NOON...THEN SCATTERED
                      SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.......71-73.
MIN HUMIDITY..........56-58 PERCENT.
WIND (20 FT)..........NORTHWEST 5 TO 10 MPH SWITCHING TO SOUTHEAST
                      WINDS 10 TO 15 MPH AFTER 1000.

.TONIGHT...
LAL...................3 UNTIL MIDNIGHT...THEN 1.
HAINES INDEX..........3 ..VERY LOW.
SKY/WEATHER...........PARTLY CLOUDY (25-35 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL
                      MIDNIGHT.
MIN TEMPERATURE.......44-49.
MAX HUMIDITY..........86-90 PERCENT.
WIND (20 FT)..........NORTHWEST WINDS 15 TO 20 MPH DECREASING TO
                      5 TO 10 MPH AFTER MIDNIGHT.

.OUTLOOK FOR FRIDAY...
LAL...................1 UNTIL NOON...THEN 2.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........950.
SKY/WEATHER...........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
                      COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.......75-77.
MIN HUMIDITY..........29-31 PERCENT.
WIND (20 FT)..........SOUTHWEST WINDS 5 MPH SHIFTING TO THE SOUTH 10 TO
                      15 MPH LATE MORNING AND AFTERNOON.



FORECASTER...MERRILL
REQUESTED BY...TREVOR FRANDSEN
REASON FOR REQUEST...WILDFIRE
.TAG 20100818.MUTTO.01/SLC

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