FNUS75 KSLC 171451
FWSSLC

SPOT FORECAST FOR HELLS HOLLOW
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
850 AM MDT SUN OCT 17 2010

.DISCUSSION...MOISTURE CONTINUES TO SPREAD INTO THE AREA THIS
MORNING AS A WEAK STORM SYSTEM MOVES ACROSS UTAH. THIS WILL KEEP
AMPLE CLOUD COVER OVER THE BURN SITE THROUGHOUT THE DAY ALONG WITH
COOLER TEMPERATURES AND HIGHER HUMIDITIES. ALTHOUGH THE BULK OF THE
PRECIPITATION WILL STAY SOUTH OF THE BURN SITE...ISOLATED
SHOWERS/THUNDERSTORMS CAN STILL BE EXPECTED LATE THIS MORNING THROUGH
LATE THIS EVENING. HIGH PRESSURE WILL BEGIN TO BUILD INTO NORTHERN
UTAH TOMORROW THROUGH MIDWEEK...RESULTING IN A DRIER AND MORE STABLE
AIRMASS AND REDUCED MIXING.

NOTE: IF YOU REQUIRE EYE-LEVEL WINDS WITH THIS FORECAST...IT IS
RECOMMENDED THAT THE REDUCTION FROM 20FT WINDS BE DONE ON-SITE AS
THE VARIABILITY OF SHELTERING CONDITIONS MAY CREATE LARGE ERRORS IN
THE FORECAST.


.TODAY...
  LAL.................2.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....54-57.
  MIN HUMIDITY........33-36 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE WINDS 2-5 MPH BECOMING WEST 8-12
                      MPH WITH GUSTS TO 25 MPH AFTER NOON.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT CLOUD COVER).
                      ISOLATED RAIN SHOWERS. ISOLATED THUNDERSTORMS
                      UNTIL MIDNIGHT.
  MIN TEMPERATURE.....40-43.
  MAX HUMIDITY........85-88 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 8 TO 12 MPH BECOMING NORTH 2-5 MPH
                      AFTER 2100.

.OUTLOOK FOR MONDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......620.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....54-57.
  MIN HUMIDITY........45-48 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE WINDS 2-5 MPH BECOMING NORTHWEST
                      6-10 MPH WITH GUSTS TO 18 MPH AFTER NOON.


FORECASTER...CHENG
REQUESTED BY...J KURPIUS
REASON FOR REQUEST...PRESCRIBED
.TAG 20101017.HELLS.01/SLC

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