FNUS75 KSLC 191757
FWSSLC

SPOT FORECAST FOR SANDLEDGES
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1157 AM MDT WED MAY 19 2010

.DISCUSSION...RESIDUAL MOISTURE FROM THE YESTERDAYS STORM SYSTEM HAS
RESULTING IN EXTENSIVE CLOUD COVER AND ISOLATED LIGHT SHOWERS ACROSS
CENTRAL UTAH. DRIER/STABLE HIGH PRESSURE ALOFT WILL BUILD INTO THE
AREA LATER TODAY/TONIGHT...PRODUCING RAPID CLEARING THIS EVENING.
A WEAK COLD FRONT WILL RACE EAST ACROSS NORTHERN UTAH THURSDAY.
INCREASING WINDS AND LOWER RH VALUES ARE EXPECTED AHEAD OF THE
FRONT DURING THE DAY. THIS FRONT WILL SAG SOUTH CLOSE TO THE FIRE
SITE BY LATE THURSDAY...THEN RETREAT BACK TO THE NORTH THURSDAY
NIGHT. WARM AND WINDY CONDITIONS WITH LOWERING RH VALUES WILL DEVELOP
FRIDAY AHEAD OF A COLD UPPER LEVEL LOW PRESSURE SYSTEM ALONG THE WEST
COAST. THIS LOW PRESSURE WILL MOVE STEADILY EAST...REACHING UTAH WITH
MUCH COOLER TEMPERATURES AND PRECIPITATION BY SUNDAY.

.TODAY...
LAL...................1.
HAINES INDEX..........2 ..VERY LOW.
CLEARING INDEX........780.
SKY/WEATHER...........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER).
                      ISOLATED LIGHT SHOWERS.
MAX TEMPERATURE.......56-58.
MIN HUMIDITY..........52-54 PERCENT.
WIND (20 FT)..........NORTH 8 TO 12 MPH WITH GUSTS TO 18 MPH.


.TONIGHT...
LAL...................1.
HAINES INDEX..........3 ..VERY LOW.
SKY/WEATHER...........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER)
                      WITH ISOLATED LIGHT SHOWERS UNTIL 2000.
                      PARTLY CLOUDY (35-45 PERCENT CLOUD COVER)
                      AFTER 2000...THEN MOSTLY CLEAR (15-25 PERCENT
                      CLOUD COVER) AFTER 0100.
MIN TEMPERATURE.......33-35.
MAX HUMIDITY..........78-81 PERCENT.
WIND (20 FT)..........NORTH WINDS 15 MPH DECREASING TO 5 MPH
                      AFTER 2200.

.OUTLOOK FOR THURSDAY...
LAL...................1.
HAINES INDEX..........5 ..MODERATE.
CLEARING INDEX........1000+.
SKY/WEATHER...........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
                      COVER) AFTER 1200.
MAX TEMPERATURE.......66-68.
MIN HUMIDITY..........20-23 PERCENT.
WIND (20 FT)..........SOUTH WINDS 5 MPH INCREASING TO SOUTHWEST 16
                      TO 22 MPH AFTER 1000.



FORECASTER...CONGER
REQUESTED BY...Todd Murray
REASON FOR REQUEST...PRESCRIBED
.TAG 20100519.SANDL.01/SLC

$$