FNUS75 KSLC 081413
FWSSLC

SPOT FORECAST FOR RAFT RIVER NARROWS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
813 AM MDT SUN AUG 8 2010

...RED FLAG WARNING FROM NOON TODAY TO 9 PM MDT THIS EVENING...

.DISCUSSION...THE FIRE SITE WILL REMAIN UNDER SOUTHERLY FLOW
THROUGH TOMORROW AHEAD OF AN APPROACHING TROUGH. THIS HAS CAUSED
AN INCREASING PRESSURE GRADIENT OVER THE AREA...WHICH WILL RESULT
IN ENHANCED WINDS BY THIS AFTERNOON. THOUGH RED FLAG CONDITIONS
ARE NOT EXPECTED AT THE FIRE SITE ITSELF...WINDS AND RELATIVE
HUMIDITIES APPROACHING THESE VALUES ARE POSSIBLE LATER TODAY.
DEVELOPING SHOWERS AND THUNDERSTORMS MAY ALSO BRING GUSTY AND
ERRATIC WINDS TO THE FIRE SITE. ADDITIONAL THUNDERSTORMS ARE
EXPECTED TOMORROW AS THE TROUGH MOVES THROUGH THE STATE...BUT A
DRIER AND MORE STABLE AIRMASS WILL MOVE IN BEHIND IT ON TUESDAY.

.TODAY...
LAL...................1 UNTIL NOON...THEN 3.
HAINES INDEX..........5 ..MODERATE.
CLEARING INDEX........1000+.
SKY/WEATHER...........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER).
                      WIDELY SCATTERED SHOWERS AND THUNDERSTORMS AFTER
                      NOON.
MAX TEMPERATURE.......80-84.
MIN HUMIDITY..........16-20 PERCENT.
WIND (20 FT)..........SOUTH WINDS 8-12 MPH WITH GUSTS TO 25 MPH BY
                      THIS AFTERNOON. GUSTY AND ERRATIC WINDS POSSIBLE
                      NEAR ANY THUNDERSTORMS.

.TONIGHT...
LAL...................3 UNTIL MIDNIGHT...THEN 2.
HAINES INDEX..........4 ..LOW.
SKY/WEATHER...........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS UNTIL
                      MIDNIGHT...THEN ISOLATED SHOWERS
                      AND THUNDERSTORMS.
MIN TEMPERATURE.......56-60.
MAX HUMIDITY..........48-52 PERCENT.
WIND (20 FT)..........SOUTH WINDS 8-12 MPH WITH GUSTS TO 25 MPH IN THE
                      EVENING...THEN DOWNSLOPE/DOWNVALLEY WINDS 3-7 MPH
                      OVERNIGHT.

.OUTLOOK FOR MONDAY...
LAL...................2 UNTIL NOON...THEN 4.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........PARTLY CLOUDY (50-60 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.......78-82.
MIN HUMIDITY..........14-18 PERCENT.
WIND (20 FT)..........UPSLOPE/UPVALLEY WINDS 3-7 MPH BECOMING SOUTH
                      8-12 MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
                      GUSTY AND ERRATIC WINDS POSSIBLE NEAR ANY
                      THUNDERSTORMS.


FORECASTER...TRAPHAGAN
REQUESTED BY...CHRISTINE KING
REASON FOR REQUEST...WILDFIRE
.TAG 20100808.RAFTR.02/SLC

$$