FNUS75 KSLC 191603
FWSSLC

SPOT FORECAST FOR LAKE FORK WFU
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1003 AM MDT SUN JUL 19 2009

.DISCUSSION...A RIDGE OVER THE AREA IS BEGINNING TO
FLATTEN...ALLOWING UPPER LEVEL MOISTURE TO MOVE INTO THE AREA.
HOWEVER...BECAUSE OF DRY AIR STILL PRESENT NEAR THE SURFACE...THIS
MOISTURE IS EXPECTED TO RESULT IN HIGH BASED THUNDERSTORMS THIS
AFTERNOON....ESPECIALLY OVER THE HIGHER TERRAIN. BECAUSE OF THE DRY
LOWER LEVELS...LITTLE PRECIPITATION IS EXPECTED TO REACH THE GROUND
WITH THESE THUNDERSTORMS. INSTEAD...THE MAIN THREAT WILL BE DRY
LIGHTNING WITH STRONG GUSTY AND ERRATIC WINDS IN THE VICINITY OF
THUNDERSTORMS. THIS MOISTURE IS EXPECTED TO LINGER THROUGH THE
WEEK...WITH THE LOW LEVEL MOISTURE INCREASING FROM THE SOUTHWEST
CORNER OF THE STATE...REACHING THE BURN SITE BY TOMORROW AFTERNOON.
AS THE LOW LEVEL MOISTURE INCREASES...THE CHANCE OF WETTING RAIN
WILL INCREASE.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 4.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS AFTER
                      NOON.
  MAX TEMPERATURE.....89-92.
  MIN HUMIDITY........13-16 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY 5-9 MPH INCREASING TO
                      15 MPH IN THE AFTERNOON. RIDGETOP WINDS
                      WEST 12-17 MPH IN THE AFTERNOON.

.TONIGHT...
  LAL.................4 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS UNTIL
                      MIDNIGHT.
  MIN TEMPERATURE.....50-52.
  MAX HUMIDITY........75-78 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY 3-7 MPH.

.OUTLOOK FOR MONDAY...
  LAL.................1 UNTIL NOON...THEN 4.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                      AFTERNOON.
  MAX TEMPERATURE.....87-90.
  MIN HUMIDITY........20-24 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY 5-10 MPH INCREASING TO
                      17 MPH IN THE AFTERNOON. RIDGETOP WINDS
                      NORTHWEST 15-20 MPH IN THE AFTERNOON.



FORECASTER...HOSENFELD
REQUESTED BY...MOAB FIRE CENTER
REASON FOR REQUEST...WFU
.TAG 20090719.LAKEF.01/SLC

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