FNUS75 KSLC 261349
FWSSLC

SPOT FORECAST FOR SPRING FIRE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
749 AM MDT FRI AUG 26 2011

.DISCUSSION...IN THE WAKE OF A WEAK DISTURBANCE THAT WENT BY
OVERNIGHT WEATHER CONDITIONS SHOULD BE SOMEWHAT STABLE EARLY THIS
MORNING. HOWEVER...THE AIR MASS IS VERY MOIST AND BUILDUPS ARE
LIKELY TO DEVELOP ALREADY BY 1000-1100 WITH LIGHTNING POSSIBLE BY
1200 MDT. SCATTERED SHOWERS AND THUNDERSTORMS WILL OCCUR THIS
AFTERNOON AND ARE LIKELY TO CONTINUE INTO TONIGHT AS ANOTHER
DISTURBANCE ROTATE NORTHWARD ACROSS THE REGION BETWEEN 2100 FRIDAY AND
0600 MDT SATURDAY.

THE WIND FLOW PATTERN IS VERY LIGHT AND VARIABLE TODAY AND TONIGHT
BUT WILL BECOME WEST SOUTHWEST SATURDAY AT 10-15 MPH. THEREFORE
EXPECT TERRAIN DRIVEN AND SHOWER DRIVEN WINDS TODAY WITH GUSTS TO
25 MPH DUE TO OUT FLOWS FROM ANY SHOWER OR THUNDERSTORM.

.TODAY...
  LAL.................2 UNTIL NOON...THEN 4.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......940.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN MOSTLY CLOUDY (70-80
                      PERCENT CLOUD COVER). A SLIGHT CHANCE OF
                      SHOWERS AND THUNDERSTORMS UNTIL NOON...THEN
                      SCATTERED SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....75-77.
  MIN HUMIDITY........33-35 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 5 MPH EARLY IN THE MORNING
                      BECOMING LIGHT AND VARIABLE...THEN BECOMING
                      5-8 MPH LATE IN THE AFTERNOON.

.TONIGHT...
  LAL.................3 UNTIL MIDNIGHT...THEN 2.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS UNTIL
                      0900...THEN A SLIGHT CHANCE OF SHOWERS
                      AND THUNDERSTORMS.
  MIN TEMPERATURE.....54-56.
  MAX HUMIDITY........81-83 PERCENT.
  WINDS - 20-FOOT.....SOUTH WINDS 10 MPH SHIFTING TO THE EAST LATE
                      IN THE EVENING...THEN SHIFTING TO THE
                      SOUTHEAST AFTER MIDNIGHT.

.OUTLOOK FOR SATURDAY...
  LAL.................2 UNTIL NOON...THEN 4.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER)
                      THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT
                      CLOUD COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE MORNING...THEN A CHANCE
                      OF SHOWERS AND THUNDERSTORMS IN THE
                      AFTERNOON.
  MAX TEMPERATURE.....76-78.
  MIN HUMIDITY........32-34 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 5 MPH SHIFTING TO THE
                      SOUTHWEST AT 10 MPH LATE IN THE AFTERNOON.



FORECASTER...STRUTHWOLF
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...WILDFIRE
.TAG 20110826.SPRIN.01/SLC

$$