FNUS75 KSLC 101242
FWSSLC

SPOT FORECAST FOR PRETTY TREE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
642 AM MDT MON MAY 10 2010

.DISCUSSION...HIGH PRESSURE ALOFT WILL SETTLE BRIEFLY ACROSS SOUTHERN
UTAH THROUGH LATE THIS AFTERNOON. A COLD SPRING LOW PRESSURE SYSTEM
OVER THE EASTERN PACIFIC WILL MOVE QUICKLY EAST THROUGH NORTHERN
CALIFORNIA TODAY...THEN INTO SOUTHWEST UTAH BY EARLY TUESDAY.
ISOLATED SHOWERS AND THUNDERSTORMS OVER THE HIGHER TERRAIN LATE THIS
AFTERNOON WILL BECOME MORE NUMEROUS OVERNIGHT. STEADY PRECIPITATION
AND MUCH COOLER TEMPERATURES WILL FOLLOW FOR TUESDAY MORNING.
PRECIPITATION WILL TURN SHOWERY WEDNESDAY WILL COOL TEMPERATURES AND
HIGH RH VALUES REMAINING AT THE SITE. PRECIPITATION WILL WIND DOWN
THURSDAY WITH TEMPERATURES SLOWLY CLIMBING AGAIN THROUGH THE END OF
THE WEEK. WARM TEMPERATURES AND MUCH LOWER RH VALUES EXPECTED THIS
WEEKEND AS HIGH PRESSURE ALOFT SETTLES ACROSS THE INTERIOR WEST.


.TODAY...
LAL...................1 UNTIL 1500...THEN 2.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........MOSTLY SUNNY THIS MORNING (5-15 PERCENT
                      CLOUD COVER)...THEN PARTLY CLOUDY (45-55
                      PERCENT CLOUD COVER). A SLIGHT CHANCE OF
                      SHOWERS AND THUNDERSTORMS AFTER 1500.
MAX TEMPERATURE.......56-58.
MIN HUMIDITY..........14-17 PERCENT.
WIND (20 FT)..........WEST NORTHWEST WINDS 8 TO 14 MPH...BECOMING
                      SOUTH SOUTHWEST 18 TO 25 MPH...GUSTS TO 35 MPH
                      AFTER 1200.
.TONIGHT...
LAL...................2.
HAINES INDEX..........2 ..VERY LOW.
SKY/WEATHER...........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER)
                      UNTIL MIDNIGHT...THEN CLOUDY (90-100 PERCENT
                      CLOUD COVER). A CHANCE OF SHOWERS AND
                      THUNDERSTORMS.
MIN TEMPERATURE.......33-35.
MAX HUMIDITY..........58-62 PERCENT.
WIND (20 FT)..........SOUTHWEST WINDS 15 TO 20 MPH.

.OUTLOOK FOR TUESDAY...
LAL...................1.
HAINES INDEX..........3 ..VERY LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........CLOUDY (90-100 PERCENT CLOUD COVER). SNOW IN
                      THE MORNING...THEN OCCASIONAL SNOW SHOWERS IN
                      THE AFTERNOON.
MAX TEMPERATURE.......39-41.
MIN HUMIDITY..........48-50 PERCENT.
WIND (20 FT)..........WEST WINDS 12 TO 20 MPH.



FORECASTER...CONGER
REQUESTED BY...Gregg Christensen
REASON FOR REQUEST...PRESCRIBED
.TAG 20100510.PRETT.01/SLC

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