FNUS75 KSLC 250525
FWSSLC

SPOT FORECAST FOR TWITCHELL CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1125 PM MDT SAT JUL 24 2010

.DISCUSSION...RIDGE AXIS WILL MOVE OVERHEAD TODAY...RESULTING IN
GENERALLY LIGHT WINDS AND WARM TEMPERATURES. AIRMASS OVER THE FIRE
WILL REMAIN GENERALLY DRY...THOUGH ENOUGH MOISTURE MAY CREEP
NORTHWARD FOR A FEW AFTERNOON BUILDUPS. HIGH PRESSURE WILL SHIFT
EAST MONDAY...RESULTING IN INCREASING SOUTHERLY FLOW AND INCREASED
MOISTURE. THE INCREASED MOISTURE WILL ALLOW FOR SCATTERED SHOWERS
AND THUNDERSTORMS...THOUGH SOME MAY BE INITIALLY DRY. SHOWER AND
THUNDERSTORM COVERAGE WILL BE GREATER ON TUESDAY AND WEDNESDAY AS
A VERY MOIST AIRMASS MOVES OVER THE FIRE SITE.

.REST OF TONIGHT...
LAL...................1.
HAINES INDEX..........6 ..HIGH.
SKY/WEATHER...........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER).
MIN TEMPERATURE.......58-62.
MAX HUMIDITY..........36-40 PERCENT.
WIND (20 FT)..........DOWNSLOPE/DOWNVALLEY WINDS UP TO 5 MPH.

.SUNDAY...
LAL...................1 UNTIL NOON...THEN 2.
HAINES INDEX..........6 ..HIGH.
CLEARING INDEX........700.
SKY/WEATHER...........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      AFTER NOON.
MAX TEMPERATURE.......82-86.
MIN HUMIDITY..........16-20 PERCENT.
WIND (20 FT)..........UPSLOPE/UPVALLEY WINDS UP TO 5 MPH BECOMING NORTH
                      5-10 MPH IN THE AFTERNOON.

.OUTLOOK FOR MONDAY...
LAL...................1 UNTIL NOON...THEN 4.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER)
                      THEN BECOMING MOSTLY CLOUDY (70-80 PERCENT
                      CLOUD COVER). A CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.......77-82.
MIN HUMIDITY..........24-28 PERCENT.
WIND (20 FT)..........SOUTH WINDS 8-12 MPH.



FORECASTER...TRAPHAGAN
REQUESTED BY...GLEN CHAPPELL
REASON FOR REQUEST...WILDFIRE
.TAG 20100724.TWITC.04/SLC

$$