FNUS75 KSLC 231524
FWSSLC

SPOT FORECAST FOR AMOS CANYON WFM
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
924 AM MDT THU JUL 23 2009

.DISCUSSION...HIGH PRESSURE ALOFT WILL REMAIN CENTERED ACROSS
THE AREA THROUGH TODAY BEFORE SHIFTING EAST INTO COLORADO ON
FRIDAY. WITH THE PROXIMITY OF THIS HIGH...WINDS AT THE SITE
ARE EXPECTED TO REMAIN LARGELY DRIVEN BY TERRAIN FLOWS...WITH
LIGHT WESTERLY WINDS EXPECTED ALONG THE RIDGELINES. MOISTURE
WILL GRADUALLY INCREASE TODAY...AND SHOULD PROVE SUFFICIENT
FOR A FEW HIGH BASED THUNDERSTORMS IN PROXIMITY TO THE SITE
THIS AFTERNOON AND EVENING. AS THE HIGH SHIFTS EAST...MOISTURE
WILL CONTINUE TO SPREAD NORTH INTO THE AREA...ALLOWING FOR A
BETTER CHANCE FOR SHOWERS AND THUNDERSTORMS CAPABLE OF
PRODUCING WETTING RAINS FRIDAY INTO SATURDAY. GUSTY ERRATIC
WINDS CAN BE EXPECTED NEAR ANY THUNDERSTORMS WHICH DEVELOP.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN PARTLY CLOUDY (40-50
                      PERCENT CLOUD COVER). ISOLATED HIGH BASED
                      THUNDERSTORMS AFTER 1200.
  MAX TEMPERATURE.....80-83.
  MIN HUMIDITY........17-20 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST/DOWNSLOPE 2-5 MPH BECOMING
                      NORTHWEST/UPSLOPE 4-9 MPH AFTER 1000.
                      RIDGELINE WINDS WEST 4-9 MPH DURING THE
                      AFTERNOON.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER)
                      WITH ISOLATED HIGH BASED THUNDERSTORMS UNTIL
                      MIDNIGHT...THEN MOSTLY CLEAR (20-30 PERCENT
                      CLOUD COVER).
  MIN TEMPERATURE.....62-65.
  MAX HUMIDITY........40-43 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST/UPSLOPE 2-5 MPH BECOMING
                      SOUTHEAST/DOWNSLOPE 4-9 MPH AFTER 2000.

.OUTLOOK FOR FRIDAY...
  LAL.................1 UNTIL NOON...THEN 4.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (55-65 PERCENT CLOUD
                      COVER). SCATTERED SHOWERS AND THUNDERSTORMS
                      AFTER 1100.
  MAX TEMPERATURE.....77-88.
  MIN HUMIDITY........25-28 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST/DOWNSLOPE 2-5 MPH BECOMING
                      NORTHWEST/UPSLOPE 4-9 MPH AFTER 1000.
                      RIDGELINE WINDS WEST 5-10 MPH.



FORECASTER...SEAMAN
REQUESTED BY...BOB BATES
REASON FOR REQUEST...WILDFIRE
.TAG 20090723.AMOSC.01/SLC

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