FNUS75 KRIW 281007
FWSRIW

SPOT FORECAST FOR MEADOW FIRE...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
407 AM MDT WED SEP 28 2011

FORECAST IS BASED ON REQUEST TIME OF 2107 MDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

WARM AND DRY CONDITIONS WILL OCCUR TODAY. WINDS WILL BE TERRAIN
DRIVEN THROUGH MIDDAY...BUT BECOME LESS PREDICTABLE IN THE
AFTERNOON. THE SALT MOUNTAIN RANGE SHOULD BLOCK THE BULK OF THE
WESTERLY WINDS...AND THE SOUTHWEST EXPOSURE OF THE FIRE WILL LIMIT
THE DIURNAL NORTH NORTHWEST FLOW IN THE GREYS RIVER DRAINAGE.
RIDGES WILL HAVE OCCASIONAL BREEZY WEST TO NORTHWEST WINDS
TODAY. WARM AND VERY DRY CONDITIONS...WITH LIGHT AND MAINLY
TERRAIN DRIVEN WINDS ARE EXPECTED THURSDAY AND FRIDAY.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....66-69.
MIN HUMIDITY........20-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH...BECOMING WEST TO
                    NORTHWEST 5-10 MPH...BETWEEN NOON AND 1400.
                    GUSTS TO 15 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 10 MPH...BECOMING NORTHWEST
                    10-15 MPH BETWEEN NOON AND 1400. GUSTS TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 5400 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 10 MPH SHIFTING TO THE NORTHWEST
                    AROUND 15 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD IN THE EARLY AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........75-80 PERCENT.
20 FOOT WINDS.......WEST TO NORTHWEST WINDS 4-8 MPH...BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-8 MPH BY 2000.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH SHIFTING TO THE SOUTH
                    AROUND 5 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL DECREASING TO 900-1400 FT AGL
                    BY MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH SHIFTING TO THE SOUTH
                    AROUND 5 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR BY 2100.

.THURSDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH.
RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000-3000 FT AGL INCREASING TO 5400-6400 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (24600-53100 KNOT-FT).

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

.FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE
LOWER 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN
10 MPH.

.SUNDAY...PARTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE UPPER
30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...MEADOW ICT
REASON FOR REQUEST...WILDFIRE
.TAG 20110927.MEADO.01/RIW