FNUS75 KRIW 240840
FWSRIW

SPOT FORECAST FOR UPPER PALMER CREEK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
240 AM MDT SAT SEP 24 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A STRONG AREA OF HIGH PRESSURE WILL REMAIN OVER THE BURN SITE
TODAY. THIS SYSTEM WILL BRING SLIGHTLY WARMER TEMPERATURES AND
SLIGHTLY LOWER HUMIDITY TODAY. GENERALLY LIGHT WIND IS EXPECTED
OVER THE BURN SITE THROUGH TONIGHT. AN APPROACHING WAVE OF LOW
PRESSURE OVER THE PACIFIC NORTHWEST WILL BRING AN INCREASED
PRESSURE GRADIENT WITH A SLIGHT INCREASE IN WIND ON SUNDAY
AFTERNOON. HOWEVER...DRY AND WARM CONDITIONS ARE EXPECTED TO
PERSIST THROUGH THE WEEKEND. THE MORNINGS MAY SEE INVERSIONS WHICH
MAY HINDER SMOKE DISPERSAL...BUT THESE INVERSIONS SHOULD LIFT BY
THE MID MORNING HOURS.

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

FORECASTER...BRANHAM

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....72-76.
MIN HUMIDITY........19-24 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE GENERALLY LESS THAN 5 MPH.
RIDGE TOP WINDS.....EAST 5 TO 10 MPH SHIFTING TO THE SOUTHWEST IN
                    BY 1300.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1700-2700 FT AGL INCREASING TO 6800-7900 FT AGL
                    BY 1500.
TRANSPORT WINDS.....EAST 8 TO 12 MPH SHIFTING TO THE SOUTHWEST
                    BY 1400.
SMOKE DISPERSAL.....POOR TO FAIR (6700-58700 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....36-41.
MAX HUMIDITY........68-75 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE GENERALLY UNDER 5 MPH.
RIDGE TOP WINDS.....BECOMING SOUTHEAST 5 TO 10 MPH BY 2000.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL BY 0200.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE
                    SOUTHEAST BY 2000.
SMOKE DISPERSAL.....POOR TO FAIR (2400-47600 KNOT-FT).

.SUNDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....70-74.
MIN HUMIDITY........20-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....LIGHT AND VARIABLE GENERALLY UNDER 5 MPH...
                    BECOMING SOUTHWEST AT 7 TO 10 MPH BY 1300.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 7600-8600 FT AGL BY 1500.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH SHIFTING TO THE WEST
                    15 TO 20 MPH BY 1300.
SMOKE DISPERSAL.....POOR (13800 KNOT-FT) INCREASING TO GOOD (93100
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. WINDS GENERALLY LESS THAN
10 MPH.

.MONDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.

.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.

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

$$

FORECASTER...BRANHAM
REQUESTED BY...UPPER PALMER RX
REASON FOR REQUEST...PRESCRIBED
.TAG 20110923.UPPER.03/RIW