FNUS75 KSLC 182131
FWSSLC

SPOT FORECAST FOR BRIDGE FIRE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
331 PM MDT SAT JUL 18 2009

.DISCUSSION...A RIDGE OF HIGH PRESSURE WILL REMAIN IN PLACE
ACROSS THE REGION THROUGHOUT THE WEEKEND...RESULTING IN HOT
DAYTIME TEMPERATURES AND LOW RELATIVE HUMIDITY WITH MARGINAL
OVERNIGHT RECOVERY. WINDS WILL GENERALLY REMAIN LIGHT AND
DRIVEN BY TERRAIN FLOWS...HOWEVER A WEAK DISTURBANCE MOVING
THROUGH THE RIDGE WILL LIKELY SWITCH RIDGELINE WINDS TO THE
WEST SUNDAY AFTERNOON. HIGH BASED MOISTURE IS EXPECTED TO
SLOWLY INCREASE TODAY THROUGH SUNDAY. THIS WILL CONTINUE TO
BRING A SMALL CHANCE FOR THUNDERSTORMS THIS AFTERNOON NEAR THE
BURN AREA...WITH A BETTER CHANCE SUNDAY AFTERNOON AND EVENING.
GIVEN THE DRY LOW LEVELS IN PLACE...DRY LIGHTNING AND STRONG
WINDS WILL BE POSSIBLE WITH ANY STORMS WHICH DEVELOP...WITH
LITTLE IF ANY PRECIPITATION EXPECTED.

.REST OF TODAY...
  LAL.................2.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......790.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
                      ISOLATED HIGH BASED SHOWERS AND DRY
                      THUNDERSTORMS.
  MAX TEMPERATURE.....81-84.
  MIN HUMIDITY........12-15 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE 4-9 MPH. GUSTY ERRATIC WINDS NEAR
                      THUNDERSTORMS OR AREAS OF VIRGA.

.TONIGHT...
  LAL.................4 UNTIL MIDNIGHT...THEN 2.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
                      ISOLATED DRY THUNDERSTORMS UNTIL MIDNIGHT.
  MIN TEMPERATURE.....55-58.
  MAX HUMIDITY........47-50 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE 4-9 MPH. GUSTY ERRATIC WINDS NEAR
                      THUNDERSTORMS OR AREAS OF VIRGA.

.OUTLOOK FOR SUNDAY...
  LAL.................2 UNTIL NOON...THEN 6.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER).
                      ISOLATED DRY THUNDERSTORMS UNTIL 1200...THEN
                      WIDELY SCATTERED DRY THUNDERSTORMS.
  MAX TEMPERATURE.....85-88.
  MIN HUMIDITY........13-16 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE 4-9 MPH. RIDGELINE WINDS BECOMING WEST
                      8-14 MPH AFTER 1200. GUSTY ERRATIC WINDS NEAR
                      THUNDERSTORMS OR AREAS OF VIRGA.


FORECASTER...SEAMAN
REQUESTED BY...HORSE FIRE FEMO
REASON FOR REQUEST...WILDFIRE
.TAG 20090718.BRIDG.01/SLC

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