FNUS75 KSLC 031723
FWSSLC

SPOT FORECAST FOR PROSPECT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1123 AM MDT FRI JUL 3 2009

.DISCUSSION...A DRIER SOUTHWEST FLOW ALOFT HAS SET IN OVERNIGHT AT
HIGHER LEVELS BUT LOW LEVELS REMAIN MOIST. THEREFORE DESPITE THE
SUNNY SKIES THIS MORNING THE ATMOSPHERE WILL TURN RAPIDLY UNSTABLE
BY EARLY AFTERNOON WITH SCATTERED BUILDUPS AND ISOLATED
THUNDERSTORMS. SINCE THE MOISTURE IS HALF OF WHAT IT WAS YESTERDAY
THE GREATEST THREAT FROM ANY THUNDERSTORMS IN YOUR AREA WILL BE
THE WIND GUST POTENTIAL OF 30 TO 40 MPH. THE ATMOSPHERE WILL BE
SIMILAR ON SATURDAY MOISTURE WISE BUT WITH THE ADDITION OF A WEAK
IMPULSE MOVING ACROSS CENTRAL UTAH SATURDAY AFTERNOON THE THREAT
OF THUNDERSTORMS WILL BE A LITTLE GREATER. DRIER AND BREEZY
CONDITIONS WILL SET IN BY EARLY NEXT WEEK.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......800.
  SKY/WEATHER.........SUNNY (0-15 PERCENT CLOUD COVER) UNTIL NOON
                      THEN PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
                      AFTER NOON ISOLATED SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....70-72.
  MIN HUMIDITY........49-51 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE 5 MPH BECOMING WEST NORTHWEST AT 10
                      MPH AFTER 1300.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS AND THUNDERSTORMS UNTIL
                      MIDNIGHT.
  MIN TEMPERATURE.....51-53.
  MAX HUMIDITY........66-72 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 MPH SHIFTING TO THE NORTHWEST
                      LATE IN THE EVENING...THEN SHIFTING TO THE
                      SOUTHWEST AFTER MIDNIGHT.

.OUTLOOK FOR SATURDAY...
  LAL.................1 UNTIL NOON...THEN 3.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......590.
  SKY/WEATHER.........BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
                      COVER) BY AFTERNOON. A CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....70.
  MIN HUMIDITY........40-42 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE
                      WEST 15 MPH LATE IN THE AFTERNOON.



FORECASTER...STRUTHWOLF
REQUESTED BY...STONY NELSON
REASON FOR REQUEST...WILDFIRE
.TAG 20090703.PROSP.01/SLC

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