FNUS75 KSLC 252034
FWSSLC

SPOT FORECAST FOR TWITCHELL CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
234 PM MDT SUN JUL 25 2010

.DISCUSSION...DAYTIME HEATING THIS AFTERNOON WILL RESULT IN AN
INCREASE IN THE NUMBER OF BUILDUPS AROUND THE AREA...WITH A
SMALL CHANCE ONE OR TWO OF THESE DEVELOP INTO THUNDERSTORMS.
ANY STORMS WHICH DEVELOP WILL REMAIN DRY WITH STRONG AND
ERRATIC MICROBURST WINDS POSSIBLE.

HIGH PRESSURE CENTERED ACROSS THE AREA TODAY WILL MOVE EAST
TONIGHT...ALLOWING A SOUTHWESTERLY FLOW TO DEVELOP BY MONDAY.
THIS FLOW WILL QUICKLY TRANSPORT MOISTURE INTO THE AREA
THROUGHOUT THE DAY MONDAY. THUNDERSTORMS ARE EXPECTED TO DEVELOP
MONDAY AFTERNOON AND EVENING AS THIS MOISTURE SPREADS NORTHWARD.
MOISTURE LOOKS TO BE SUFFICIENT FOR WETTING RAINS WITH ANY
STORMS WHICH DEVELOP.

THIS MOISTURE WILL CONTINUE TO INCREASE MONDAY NIGHT INTO
TUESDAY...ALLOWING FOR HIGHER AFTERNOON RH VALUES AND BETTER
OVERNIGHT RECOVERY. DEEP MOISTURE LOOKS TO REMAIN IN PLACE
THROUGH MUCH OF THE UPCOMING WEEK...RESULTING IN A GOOD CHANCE
FOR SHOWERS AND THUNDERSTORMS EACH AFTERNOON/EVENING. HEAVY
RAINFALL WILL BE POSSIBLE WITH THESE STORMS.

.REST OF TODAY...
LAL...................2.
HAINES INDEX..........6 ..HIGH.
CLEARING INDEX........630.
SKY/WEATHER...........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER)
                      WITH AFTERNOON BUILDUPS AND A SLIGHT CHANCE
                      OF DRY THUNDERSTORMS.
MAX TEMPERATURE.......81-84.
MIN HUMIDITY..........15-18 PERCENT.
WIND (20 FT)..........NORTHEAST 3-8 MPH.

.TONIGHT...
LAL...................2.
HAINES INDEX..........5 ..MODERATE.
SKY/WEATHER...........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF DRY THUNDERSTORMS UNTIL
                      2400.
MIN TEMPERATURE.......57-60.
MAX HUMIDITY..........37-40 PERCENT.
WIND (20 FT)..........NORTHEAST 3-8 MPH BECOMING SOUTH 2-5 MPH
                      AFTER MIDNIGHT.

.OUTLOOK FOR MONDAY...
LAL...................2 UNTIL NOON...THEN 4.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER)
                      THEN BECOMING MOSTLY CLOUDY (70-80 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.......77-80.
MIN HUMIDITY..........25-28 PERCENT.
WIND (20 FT)..........SOUTH 3-8 MPH INCREASING TO 7-12 MPH AFTER
                      1200.



FORECASTER...SEAMAN
REQUESTED BY...GLEN CHAPPELL
REASON FOR REQUEST...WILDFIRE
.TAG 20100725.TWITC.01/SLC

$$