FNUS75 KRIW 281014
FWSRIW

SPOT FORECAST FOR MIDDLE...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
414 AM MDT TUE SEP 28 2010

FORECAST IS BASED ON REQUEST TIME OF 2125 MDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

VERY WARM AND DRY CONDITIONS WILL CONTINUE TODAY. WINDS TODAY
WILL BE SLIGHTLY STRONGER THAN YESTERDAY...AND WILL GENERALLY BE FROM
THE WEST. A VERY WEAK COLD FRONT IS EXPECTED TO PUSH INTO NORTHWEST
WYOMING WEDNESDAY MORNING. HOWEVER...WINDS ON WEDNESDAY ARE
EXPECTED TO WEAKEN...WITH MAINLY LIGHT AND TERRAIN DRIVEN WINDS
EXPECTED. THE DRY AND WARM CONDITIONS WILL CONTINUE THROUGH
OCTOBER 2ND.

...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...MURRELL/SKRBAC

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....72-74.
MIN HUMIDITY........12-16 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 3-6 MPH BY 1000...THEN BECOMING
                    WEST AROUND 10 MPH BETWEEN NOON AND 1400. GUSTS
                    UP TO 20 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH...BECOMING WEST NORTHWEST 10-15
                    MPH BETWEEN NOON AND 1400. GUSTS TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 3500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 10 MPH...BECOMING WEST NORTHWEST
                    10-15 MPH IN THE EARLY AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (13000-52000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 40-44.
MAX HUMIDITY........36-41 PERCENT.
20 FOOT WINDS.......WEST NORTHWEST WINDS 5-10 MPH...GUSTS TO 15 MPH IN
                    THE EVENING...DOWNSLOPE 4-7 MPH AFTER 2300L.
RIDGE TOP WINDS.....WEST NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3000 FT AGL DECREASING TO 600 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST NORTHWEST 10-15 MPH.
SMOKE DISPERSAL.....DECREASING TO POOR (9000 KNOT-FT) BY 2000.

.WEDNESDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....66-70.
MIN HUMIDITY........17-21 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST 5-10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 2000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST TO NORTHWEST 5-10 MPH.
SMOKE DISPERSAL.....POOR (10000-20000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...CLEAR. LOWS IN THE MID 30S. WINDS GENERALLY
LESS THAN 10 MPH.

.THURSDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...JAMES HARBUZ
REASON FOR REQUEST...WILDFIRE
.TAG 20100927.MIDDL.02/RIW