473
FNUS75 KSLC 251501
FWSSLC
SPOT FORECAST FOR MONVISO
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
801 AM MST WED NOV 25 2009
DISCUSSION
HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY AND
THURSDAY...KEEPING CONDITIONS DRY AND STABLE. SOUTHWESTERLY FLOW
ABOVE THE SURFACE WILL INCREASE SOMEWHAT ON FRIDAY AHEAD OF AN
APPROACHING SYSTEM...THOUGH WINDS WILL NOT BE PARTICULARLY STRONG
COMPARED TO PREFRONTAL WINDS IN SOME RECENT EVENTS. SURFACE WINDS
AT THE BURN SITE ON FRIDAY WILL LIKELY BE SOUTHWESTERLY...WITH
GUSTS NEAR 20 MPH POSSIBLE. CLEARING INDICES WILL BE
MARGINAL...BUT CURRENTLY LOOK TO BE SLIGHTLY ABOVE 500 ON FRIDAY
AT THE BURN SITE. THE PACIFIC TROUGH AND ASSOCIATED COLD FRONT
ARE EXPECTED TO MOVE THROUGH NORTHERN UTAH SATURDAY
MORNING...SWITCHING WINDS TO THE NORTHWEST FOR THE REST OF THE
DAY AND CREATING A CHANCE OF SNOW. WITH GOOD MIXING DUE TO THIS
SYSTEM...CLEARING INDICES ON SATURDAY COULD BE IN THE 750 TO 1000
RANGE. MORE CERTAIN AND DETAILED INFORMATION CAN BE OBTAINED
CLOSER TO THE WEEKEND.
TODAY
LAL.................1.
HAINES INDEX........2 ..VERY LOW.
CLEARING INDEX......130.
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
MAX TEMPERATURE.....40-42.
MIN HUMIDITY........31-33 PERCENT.
WINDS - 20-FOOT.....UPSLOPE/UPVALLEY 3 TO 6 MPH.
TONIGHT
LAL.................1.
HAINES INDEX........3 ..VERY LOW.
SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER).
MIN TEMPERATURE.....9-11.
MAX HUMIDITY........96-100 PERCENT.
WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH.
OUTLOOK FOR THURSDAY
LAL.................1.
HAINES INDEX........4 ..LOW.
CLEARING INDEX......100.
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
MAX TEMPERATURE.....44-47.
MIN HUMIDITY........26-29 PERCENT.
WINDS - 20-FOOT.....UPSLOPE/UPVALLEY 3 TO 6 MPH.
FORECASTER...SCHOENING
REQUESTED BY...JABLONSKI
REASON FOR REQUEST...PRESCRIBED
.TAG 20091127.MONVI.01/SLC
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