FNUS75 KSLC 182026
FWSSLC

SPOT FORECAST FOR BRIDGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
226 PM MDT THU JUN 18 2009

.DISCUSSION...A LOW PRESSURE SYSTEM CROSSING THE AREA COMBINED WITH
AMPLE MOISTURE IS RESPONSIBLE FOR THUNDERSTORMS OVER MOST OF THE
STATE. ACTIVITY IS EXPECTED TO DIMINISH LATER THIS AFTERNOON AS THE
LOW PRESSURE MOVES OFF TO THE EAST. MOISTURE WILL DECREASE THIS
EVENING AS A WEAK RIDGE BUILDS INTO THE AREA. THIS RIDGE WILL
DECREASE WINDS...AND CLEARING INDICES...DURING THE DAY TOMORROW. THE
RIDGE WILL ONLY HANG AROUND THROUGH TOMORROW...AS ANOTHER SYSTEM
APPROACHES THE STATE FROM THE NORTH. WHILE THE MOISTURE ASSOCIATED
WITH THIS SYSTEM IS NOT EXPECTED TO DIRECTLY IMPACT THE BURN
SITE...WINDS WILL INCREASE FROM THE SOUTHWEST ON SATURDAY...AND MORE
AFTERNOON CONVECTION IS POSSIBLE.

.REST OF TODAY...
  LAL.................4.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....59-62.
  MIN HUMIDITY........36-40 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 7-12 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....38-41.
  MAX HUMIDITY........63-65 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY 3-7 MPH.

.OUTLOOK FOR FRIDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......590.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
                      COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....69-72.
  MIN HUMIDITY........25-29 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY 5-10 MPH.



FORECASTER...HOSENFELD
REQUESTED BY...USFS
REASON FOR REQUEST...WFU
.TAG 20090618.BRIDG.01/SLC

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