FNUS75 KSLC 011054
FWSSLC

SPOT FORECAST FOR COFFEE POT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
454 AM MDT FRI OCT 1 2010

...RED FLAG WARNING FROM NOON TODAY TO 10 PM MDT THIS EVENING...

.DISCUSSION...NOTE...THE RED FLAG IN EFFECT IS FOR DRY LIGHTNING AFTER
A PROLONGED DRY PERIOD FOR THE SOUTHERN HALF OF OF FIRE ZONE 436.
WE ARE NOT EXPECTING DRY LIGHTNING AT THE COFFEE POT FIRE TODAY.

PRIMARY FIRE WEATHER CONCERN FOR TODAY IS THE THREAT OF AN
UPSWING OF FIRE BEHAVIOR LATE THIS MORNING THROUGH THIS EVENING.
THE HAINES INDEX REMAINS A 6 THROUGH TODAY AS BONE DRY SURFACE
CONDITIONS AND DECREASING STABILITY TRENDS WILL OCCUR. THAT
SAID...WINDS WILL REMAIN ON THE LIGHT SIDE WITH SLOPE DRIVEN
DIURNAL FLOWS CONTINUING TO DOMINATE.

MOISTURE WILL BE ON THE RISE TONIGHT...BUT WILL PRIMARILY
INCREASE AT THE MID AND UPPER LEVELS. ISOLATED AND VERY LIGHT
SHOWERS ARE POSSIBLE AFTER MIDNIGHT...BUT WETTING RAIN POTENTIAL
WILL REMAIN NEAR NIL. A FURTHER DECREASE IN STABILITY IS
EXPECTED FOR SATURDAY BUT HUMIDITY VALUES SHOULD START TO
INCREASE ALLOWING HAINES TO FALL INTO THE MODERATE CATEGORY. WITH
HEATING THOUGH...THE THREAT FOR THUNDERSTORMS...MAINLY DRY...WILL
INCREASE FOR THE AFTERNOON HOURS. BRIEF AND ERRATIC GUSTY WINDS
THE PRIMARY FIRE WEATHER THREAT SATURDAY AFTERNOON. THUNDERSTORM
POTENTIAL WILL INCREASE THROUGH SUNDAY...AS WILL WETTING RAIN
POTENTIAL AS MOISTURE LEVELS WILL CONTINUE TO RISE.

A PACIFIC TROUGH WILL SETTLE INTO NEVADA EARLY IN THE WEEK BRINGING
MUCH COOLER AND MORE MOIST CONDITIONS THROUGH THE WEEK AND INTO
THE WEEKEND.

.TODAY...
  LAL.................1.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......930.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN PARTLY CLOUDY (35-45
                      PERCENT CLOUD COVER).
  MAX TEMPERATURE.....76-78.
  MIN HUMIDITY........9-11 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE 4 TO 7 MPH SHIFTING TO THE
                      SHIFTING TO THE WEST 5 TO 10 MPH
                      BETWEEN 12-1300.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........6 ..HIGH.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF ISOLATED AND VERY LIGHT
                      SHOWERS AFTER MIDNIGHT.
  MIN TEMPERATURE.....53-55.
  MAX HUMIDITY........25-27 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 TO 10 MPH BECOMING
                      DOWNSLOPE 4 TO 7 MPH AFTER 2300.


.OUTLOOK FOR SATURDAY...
  LAL.................1 UNTIL NOON...THEN 3.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......640.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER)
                      THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT
                      CLOUD COVER). A SLIGHT CHANCE OF ISOLATED
                      AND VERY LIGHT SHOWERS IN THE MORNING...THEN
                      A CHANCE OF WIDELY SCATTERED VERY LIGHT SHOWERS
                      AND THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....76-78.
  MIN HUMIDITY........12-15 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE 4 TO 7 MPH BECOMING WEST
                      5 TO 10 MPH AFTER 1300. BRIEF ERRATIC WIND
                      GUST TO 35 MPH WITH ANY NEAR BY THUNDERSTORM.



FORECASTER...MERRILL
REQUESTED BY...SCOTT TOBLER
REASON FOR REQUEST...WILDFIRE
.TAG 20100930.COFFE.01/SLC

$$