FNUS75 KSLC 060151
FWSSLC

SPOT FORECAST FOR NELSON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
751 PM MDT SUN SEP 5 2010

...RED FLAG WARNING FROM 3 PM THIS AFTERNOON TO 9 PM MDT THIS
EVENING FOR STRONG WINDS AND LOW HUMIDITY...

.DISCUSSION...THE STRONG DRY SOUTHWEST WINDS OVER THE AREA WILL
SHIFT TO NORTHWEST THIS EVENING AS A DRY COLD FRONT CROSSES THE
FIRE SITE. THE NORTHWEST WINDS WILL CONTINUE TO BE GUSTY UNTIL
ABOUT MIDNIGHT THEN DROP OFF. SCATTERED CUMULUS CLOUDS ALONG THE
FRONT ARE NOT EXPECTED TO GENERATE ANY RAIN AND WILL MOVE OFF TO
THE SOUTH LATER THIS EVENING.

LIGHT WINDS AND DRY CONDITIONS ARE FORECAST FOR MONDAY WITH
COOLER TEMPS. THE WINDS PICK UP OUT OF THE SOUTHWEST AGAIN
TUESDAY AND INCREASE WEDNESDAY AHEAD OF THE NEXT COLD FRONT. AN
INCREASE IN MOISTURE WILL ACCOMPANY THE SOUTHWEST WINDS BRINGING
A CHANCE OF SHOWERS AND THUNDERSTORMS TUESDAY AFTERNOON THROUGH
WEDNESDAY. THE WINDS CONTINUE INTO THURSDAY BUT THE AIRMASS
DRIES. THE FRONT SHOULD CROSS THE FIRE LATE THURSDAY AFTERNOON OR
THURSDAY NIGHT.


.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER)
                      EARLY THEN MOSTLY CLEAR (5-15 PERCENT
                      CLOUD COVER).
  MIN TEMPERATURE.....41-43.
  MAX HUMIDITY........27-29 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 15 TO 25 MPH BECOMING
                      NORTHWEST IN THE EVENING THEN DROPPING
                      OFF TO 5-10 MPH AFTER MIDNIGHT.

.MONDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......700.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....66-68.
  MIN HUMIDITY........11-13 PERCENT.
  WINDS - 20-FOOT.....LOCAL DOWNSLOPE WINDS 5 MPH SHIFTING TO
                      WESTERLY UPSLOPE 5-10 MPH IN THE AFTERNOON.

.OUTLOOK FOR TUESDAY...
  LAL.................1 UNTIL NOON THEN 2.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
                      COVER). A SLIGHT CHANCE OF A SHOWER OR
                      THUNDERSTORM.
  MAX TEMPERATURE.....73-75.
  MIN HUMIDITY........14-16 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST
                      15 MPH IN THE AFTERNOON. STRONG GUSTY
                      ERRATIC WINDS NEAR ANY STORMS.



FORECASTER...WILENSKY
REQUESTED BY...MOAB FIRE CENTER
REASON FOR REQUEST...WILDFIRE
.TAG 20100905.NELSO.01/SLC

$$