FNUS75 KSLC 222243
FWSSLC

SPOT FORECAST FOR TWITCHELL CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
443 PM MDT SUN AUG 22 2010

.DISCUSSION...DEEP MOISTURE PLUME ACROSS SOUTH CENTRAL THROUGH
EASTERN UTAH WILL FOR THE MOST PART REMAIN EAST OF THE FIRE SITE
TONIGHT. THE COLD FRONT OVER NORTHWEST UTAH LATE THIS AFTERNOON WILL
SWEEP SOUTH INTO CENTRAL UTAH LATE TONIGHT. THIS FRONT WILL
MAINTAIN BREEZY SOUTHWEST WINDS BEFORE MOVING INTO THE FIRE SITE
LATE TONIGHT. ISOLATED SHOWERS/THUNDERSTORMS WILL FORM ALONG THE
FRONT...THEN DRIER AND MORE STABLE AIR WILL MOVE IN QUICKLY AS THE
FRONT SLIDES SOUTH OF THE FIRE. STABLE CONDITIONS AND COOLER
TEMPERATURES ARE EXPECTED EARLY IN THE WEEK. MOISTURE WILL RETURN
FROM THE SOUTH AROUND MIDWEEK.


.TONIGHT...
  LAL.................2.
  CWR.................10 PERCENT.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND THUNDERSTORMS.
  MIN TEMPERATURE.....AT 8000 FEET 50-52.
                      AT 10000 FEET 46-48.
  MAX HUMIDITY........AT 8000 FEET 71-73 PERCENT.
                      AT 10000 FEET 81-85 PERCENT
  WINDS - 20-FOOT.....BREEZY. SOUTHWEST WINDS 10 TO 20 MPH WITH
                      GUSTS TO 28 MPH. WINDS BECOMING WEST 10 TO 15
                      MPH AFTER 2200.
  WINDS - RIDGETOP....SOUTHWEST 22 TO 28 MPH...BECOMING WEST 10 TO
                      20 MPH AFTER MIDNIGHT.

.MONDAY...
  LAL.................2 UNTIL 0900...THEN 1.
  CWR.................5 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      UNTIL 0900.
  MAX TEMPERATURE.....AT 8000 FEET 65-68.
                      AT 10000 FEET 62-65.
  MIN HUMIDITY........AT 8000 FEET 31-33 PERCENT.
                      AT 10000 FEET 36-39 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 5 TO 10 MPH.
  WINDS - RIDGETOP....NORTHWEST WINDS 8 TO 12 MPH.

.OUTLOOK FOR TUESDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......700.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PCT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 66-68.
                      AT 10000 FEET 64-66.
  MIN HUMIDITY........AT 8000 FEET 21-24 PERCENT.
                      AT 10000 FEET 25-28 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 4 TO 8 MPH.
  WINDS - RIDGETOP....NORTH WINDS 6 TO 12 MPH.

.OUTLOOK FOR WEDNESDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......700.
  SKY/WEATHER.........PARTLY CLOUDY (15-25 PCT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 68-71.
                      AT 10000 FEET 66-68.
  MIN HUMIDITY........AT 8000 FEET 16-19 PERCENT.
                      AT 10000 FEET 15-18 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 5 TO 10 MPH.
  WINDS - RIDGETOP....SOUTHWEST WINDS 8 TO 12 MPH.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......700.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PCT CLOUD COVER).
                      ISOLATED AFTERNOON THUNDERSTORMS.
  MAX TEMPERATURE.....AT 8000 FEET 69-72.
                      AT 10000 FEET 67-69.
  MIN HUMIDITY........AT 8000 FEET 19-21 PERCENT.
                      AT 10000 FEET 19-22 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 6 TO 12 MPH.
  WINDS - RIDGETOP....SOUTHWEST WINDS 10 TO 15 MPH.

FORECASTER...CONGER
REQUESTED BY...GSorenson
REASON FOR REQUEST...WILDFIRE
.TAG 20100822.TWITC.01/SLC

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