FNUS75 KSLC 090255
FWSSLC

SPOT FORECAST FOR MARBLE HEAD
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
855 PM MDT THU JUL 8 2010

.DISCUSSION...HIGH PRESSURE ALOFT WILL REMAIN ACROSS THE GREAT BASIN
THROUGH AT LEAST SATURDAY. INCREASING MOISTURE EMBEDDED IN THE HIGH
PRESSURE WILL BRING A THREAT OF THUNDERSTORMS BACK TO NORTHERN UTAH
FRIDAY AFTERNOON/EARLY EVENING...AND THEN AGAIN ON SATURDAY. LIMITED
MOISTURE IN THE LOW LEVELS OF THE ATMOSPHERE INDICATES THAT FRIDAYS
STORMS WILL BE HIGH-BASED AND WILL PRODUCE ERRATIC AND STRONG WINDS
NEAR ANY OF THE STORMS.

THUNDERSTORMS THAT WERE ACTIVE EARLIER TODAY SOUTH AND EAST OF THE
SITE HAVE ENDED EARLY THIS EVENING. STILL COULD SEE VIRGA MOVE
THROUGH THE SITE BEFORE MIDNIGHT...RESULTING IN ERRATIC AND BRIEFLY
GUSTY WINDS NEAR ANY VIRGA.

.TONIGHT...
LAL...................1.
HAINES INDEX..........5 ..MODERATE.
SKY/WEATHER...........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER)
                      UNTIL 2400...THEN MOSTLY CLEAR (15-25 PERCENT
                      CLOUD COVER).
MIN TEMPERATURE.......63-66.
MAX HUMIDITY..........40-43 PERCENT.
WIND (20 FT)..........EAST SOUTHEAST WINDS 8 TO 12 MPH...BECOMING
                      5 TO 8 MPH AFTER 0100. ERRATIC AND GUSTY WINDS
                      NEAR ANY VIRGA THROUGH 2400.

.FRIDAY...
LAL...................1 UNTIL 1200...THEN 2.
HAINES INDEX..........5 ..MODERATE.
CLEARING INDEX........810.
SKY/WEATHER...........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      AFTER NOON.
MAX TEMPERATURE.......88-91.
MIN HUMIDITY..........12-15 PERCENT.
WIND (20 FT)..........SOUTHEAST WINDS 5 TO 8 MPH...BECOMING WEST
                      SOUTHWEST 8 TO 13 MPH AFTER 1100.

.OUTLOOK FOR SATURDAY...
LAL...................1 UNTIL NOON...THEN 2.
HAINES INDEX..........6 ..HIGH.
CLEARING INDEX........560.
SKY/WEATHER...........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY
                      AFTERNOON.
MAX TEMPERATURE.......85-88.
MIN HUMIDITY..........17-19 PERCENT.
WIND (20 FT)..........SOUTHEAST WINDS 5 TO 10 MPH...BECOMING WEST
                      SOUTHWEST 10 TO 15 MPH AFTER 1000.



FORECASTER...CONGER
REQUESTED BY...M  Armantrout
REASON FOR REQUEST...WILDFIRE
.TAG 20100708.MARBL.01/SLC

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