FNUS75 KSLC 241546
FWSSLC

SPOT FORECAST FOR AMOS CANYON WFM
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
946 AM MDT FRI JUL 24 2009

.DISCUSSION...HIGH PRESSURE HAS RE-CENTERED NEAR THE FOUR
CORNERS THIS MORNING...ALLOWING ABUNDANT MOISTURE TO STREAM
NORTHWARD OUT OF ARIZONA...AND INTO SOUTHERN AND CENTRAL UTAH.
THIS MOISTURE IS EXPECTED TO CONTINUE TO INCREASE TODAY...WITH
SHOWERS AND THUNDERSTORMS EXPECTED TO DEVELOP THIS AFTERNOON
AND EVENING. LOCALLY HEAVY RAINFALL WILL BE POSSIBLE WITH THE
STRONGEST STORMS. WINDS ARE EXPECTED TO REMAIN GENERALLY LIGHT
AND DRIVEN BY SLOPE FLOWS...HOWEVER LATE THIS AFTERNOON AND
THIS EVENING WINDS WILL LIKELY BE DOMINATED MORE BY
THUNDERSTORM OUTFLOW. ADDITIONALLY...THIS INCREASE IN MOISTURE
SHOULD ALLOW FOR HIGHER MIN RH VALUES THIS AFTERNOON ALONG WITH
BETTER RECOVERY TONIGHT. SIMILAR CONDITIONS ARE EXPECTED AGAIN
SATURDAY INTO SATURDAY EVENING. NORTHWESTERLY FLOW ALOFT IS
EXPECTED TO SET UP ACROSS THE REGION SUNDAY THROUGH THE FIRST
HALF OF THE UPCOMING WEEK ALLOWING FOR A DRYING TREND.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 4.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER).
                      ISOLATED RAIN SHOWERS UNTIL NOON...THEN
                      SCATTERED SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....75-78.
  MIN HUMIDITY........32-35 PERCENT.
  WINDS - 20-FOOT.....SOUTH/DOWNSLOPE 2-5 MPH BECOMING
                      NORTHWEST/UPSLOPE 4-9 MPH BY 1100. GUSTY
                      ERRATIC WINDS NEAR THUNDERSTORMS.

.TONIGHT...
  LAL.................4 UNTIL MIDNIGHT...THEN 2.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER)
                      UNTIL MIDNIGHT...THEN PARTLY CLOUDY (55-65
                      PERCENT CLOUD COVER). SCATTERED SHOWERS AND
                      THUNDERSTORMS UNTIL MIDNIGHT...THEN A SLIGHT
                      CHANCE OF SHOWERS AND THUNDERSTORMS.
  MIN TEMPERATURE.....60-63.
  MAX HUMIDITY........73-76 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST 2-5 MPH BECOMING SOUTH/DOWNSLOPE
                      4-9 MPH AFTER 2000. GUSTY ERRATIC WINDS NEAR
                      THUNDERSTORMS.

.OUTLOOK FOR SATURDAY...
  LAL.................2 UNTIL NOON...THEN 4.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......740.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
                      THE MORNING...THEN A CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....73-76.
  MIN HUMIDITY........32-35 PERCENT.
  WINDS - 20-FOOT.....SOUTH/DOWNSLOPE 2-5 MPH BECOMING
                      NORTHWEST/UPSLOPE 4-9 MPH AFTER 1100.



FORECASTER...SEAMAN
REQUESTED BY...RICHFIELD DISPATCH
REASON FOR REQUEST...WILDFIRE
.TAG 20090724.AMOSC.01/SLC

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