FNUS75 KSLC 011052
FWSSLC

SPOT FORECAST FOR SPRING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
452 AM MDT THU SEP 1 2011

.DISCUSSION...UPPER LEVEL TROUGH WILL MOVE ACROSS THE NORTHERN
ROCKIES TODAY WITH THE ASSOCIATED COLD FRONT MOVING ACROSS UTAH.
THE COLD FRONT AT THE SURFACE HAS MORE OR LESS DISSIPATED IN THE
MOUNTAINS BUT THE WINDS ALOFT SHOULD SWITCH FROM SOUTHWEST TO WEST
BETWEEN 1400 AND 1600 MDT THIS AFTERNOON. THE THERMAL BELT SET UP
ACROSS YOUR AREA OVER NIGHT WITH RH READINGS STILL NEAR 20 PERCENT.
ALTHOUGH A RISE TO NEAR 25-30 PERCENT MAY STILL OCCUR VERY DRY AIR
WILL MIX IN BY LATE MORNING WITH RH DROPPING INTO THE MID TEENS.
WIND GUSTS TO 25 MPH SHOULD RESURFACE BY ABOUT 930-1030 MDT THIS
MORNING AND INCREASE TO ABOUT 30-35 MPH THIS AFTERNOON.

WEST TO NORTHWEST WINDS AT 10-15 MPH ARE EXPECTED FOR FRIDAY AS
THE TROUGH MOVES INTO THE HIGH PLAINS.

.TODAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....72-74.
  MIN HUMIDITY........14-17 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE
                      NORTHWEST AFTER 1400-1500 MDT 20 MPH WITH
                      GUSTS TO 30-35 MPH IN THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....50.
  MAX HUMIDITY........39-41 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 15 MPH WITH GUSTS TO AROUND
                      25 MPH BECOMING WEST 5 MPH AFTER MIDNIGHT.

.OUTLOOK FOR FRIDAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......990.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....7-74.
  MIN HUMIDITY........17-20 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE TO THE WEST AT 5-10 MPH IN THE
                      AFTERNOON.



FORECASTER...STRUTHWOLF
REQUESTED BY...SEAN MCARTHUR
REASON FOR REQUEST...WILDFIRE
.TAG 20110831.SPRIN.02/SLC

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