FNUS75 KSLC 260404
FWSSLC

SPOT FORECAST FOR LONG CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1004 PM MDT FRI MAY 25 2012

.DISCUSSION...STORM SYSTEM CONTINUES TO DEVELOP OVER WESTERN
NEVADA WITH A SURFACE BOUNDARY DRAPED ACROSS NORTHERN UTAH FROM
NEAR EVANSTON WYOMING TO PROVO SOUTHWESTWARD. THIS BOUNDARY IS
EXPECTED TO BACK NORTHWEST DURING THE NIGHT WITH THE HIGHER
ELEVATIONS SWITCHING TO A SOUTHERLY DIRECTION FIRST. THE 00Z SLC
SOUNDING SHOWS THAT THIS SHIFT IN WIND OCCURS AT ABOUT 8000 MSL.
SO YOU WILL SEE THE PROMOTORY SITE SWITCH FIRST AT ABOUT MIDNIGHT
WITH THE ELEVATION OF YOUR FIRE NEAR 5000 FEET POSSIBLY HOLDING
OFF UNTIL BETWEEN 0300 AND 0400 MDT. WINDS WILL DECREASE DURING
THIS TRANSITION PERIOD BUT THEN INCREASE FROM THE SOUTH BETWEEN
0500 AND 0700 MDT...REACHING SUSTAINED VALUES OF 15-20 MPH WITH
GUSTS OVER 30 MPH ON SOUTHERN ASPECTS AND RIDGES WHILE THE NORTH
ASPECT THE WINDS COULD EASILY BECOME UPSLOPE AT 5 TO 8 MPH.

SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED FROM MID
MORNING THROUGH MID AFTERNOON WITH A CHANCE OF A BREAK IN THE
WEATHER FOR SEVERAL HOURS BEFORE STARTING UP AGAIN IN THE EVENING
WITH THE ARRIVAL OF A COLD FRONT.

THIS COLD FRONT WILL MOVE BACK ACROSS THIS AREA ABOUT 1800-2000 MDT
SATURDAY EVENING WITH A WEST WIND OF ABOUT 10 TO 15 MPH.

.REST OF TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS.
  MIN TEMPERATURE.....46-48.
  MAX HUMIDITY........72-74 PERCENT.
  WINDS - 20-FOOT.....NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
                      SOUTHEAST ABOUT 03-0400 MDT
                      5 MPH LATE IN THE NIGHT.

.SATURDAY...
  LAL.................4.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY CLOUDY (85-95 PERCENT CLOUD COVER).
                      OCCASIONAL SHOWERS UNTIL 1500 MDT. A CHANCE
                      OF THUNDERSTORMS. SHOWERS AFTER NOON.
  MAX TEMPERATURE.....52-54.
  MIN HUMIDITY........42-44 PERCENT.
  WINDS - 20-FOOT.....WINDY. SOUTH WINDS 10 MPH INCREASING TO
                      20 WITH GUSTS BY MID MORNING TO AROUND 35 MPH.

.OUTLOOK FOR SUNDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS. A SLIGHT CHANCE OF
                      THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....51-53.
  MIN HUMIDITY........43-45 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 15 MPH.



FORECASTER...STRUTHWOLF
REQUESTED BY...DUSTY RICHARDS
REASON FOR REQUEST...WILDFIRE
.TAG 20120525.LONGC.02/SLC

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