FNUS75 KSLC 310430
FWSSLC

SPOT FORECAST FOR SEAMAN
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1030 PM MDT TUE AUG 30 2011

.DISCUSSION...A DRY SOUTHWESTERLY FLOW WILL BE PRIMARY
OPERATIONAL FIRE WEATHER CONCERN FOR WEDNESDAY. HIGH PRESSURE
HAS SHIFTED TO THE EAST IN ADVANCE OF A PACIFIC TROUGH AND
ASSOCIATED COLD FRONT APPROACHING FROM THE NORTHWEST. THAT
SAID...HUMIDITY VALUES WILL CONTINUE TO DROP IN THE DRYING
SOUTHWESTERLY FLOW...AND SURFACE WINDS WILL RAMP UP SIGNIFICANTLY
DURING THE DAY WEDNESDAY. JUST ENOUGH MID LEVEL MOISTURE REMAINS
IN PLACE FOR THE TREAT OF ISOLATED THUNDERSTORMS AGAIN TOMORROW
AFTERNOON...WHICH WOULD BRING GUSTY AND ERRATIC WINDS...BUT THE
BIG PICTURE FIRE WEATHER CONCERNS WILL BE LOW HUMIDITY AND
SUSTAINED SOUTHWESTERLY WINDS.

THE COLD FRONT WONT PASS THROUGH THE SEAMAN WILDFIRE SITE
UNTIL THURSDAY AFTERNOON SO THE ABOVE MENTIONED CONDITIONS
WILL LINGER INTO THURSDAY...WITH A SWITCH TO NORTHWEST WINDS
THURSDAY AFTERNOON.

.REST OF TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....52-54.
  MAX HUMIDITY........60-62 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 10 MPH.

.WEDNESDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (0-10 PERCENT CLOUD COVER) UNTIL
                      NOON...THEN PARTLY CLOUDY (40-50 PERCENT
                      CLOUD COVER). BUILDUPS AFTER 1200...WITH
                      ISOLATED THUNDERSTORMS IN THE 1300-1900 WINDOW.
  MAX TEMPERATURE.....83-85.
  MIN HUMIDITY........19-21 PERCENT.
  WINDS - 20-FOOT.....BREEZY. SOUTHWEST WINDS 15 TO 20 MPH SHIFTING
                      TO THE SOUTH 20 TO 25 MPH IN THE AFTERNOON.

.OUTLOOK FOR THURSDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
                      THE AFTERNOON.
  MAX TEMPERATURE.....81-83.
  MIN HUMIDITY........17-19 PERCENT.
  WINDS - 20-FOOT.....BREEZY. SOUTH WINDS 20 TO 25 MPH.



FORECASTER...MERRILL
REQUESTED BY...EARL LEVANGER
REASON FOR REQUEST...WILDFIRE
.TAG 20110830.SEAMA.01/SLC

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