FNUS75 KRIW 161613
FWSRIW

SPOT FORECAST FOR POWDER RIVER PROPERITIES PILES RX...BLM CAD
NATIONAL WEATHER SERVICE RIVERTON WY
913 AM MST WED JAN 16 2013

FORECAST IS BASED ON IGNITION TIME OF 0855 MST ON JANUARY 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY NORTHWESTERLY FLOW LOOKS TO BE THE RULE OVER THE
NEXT FEW DAYS. A FAIRLY TIGHT PRESSURE GRADIENT WILL REMAIN TODAY AND
KEEP WINDS BORDERLINE TODAY AND TONIGHT. EXPECT SOMEWHAT LESS WIND
THURSDAY INTO FRIDAY. THE NEXT CHANCE OF SNOW WILL LIKELY HOLD OFF
UNTIL SUNDAY.


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

FORECASTER...HATTINGS

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....30-35.
MIN HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......WEST TO NORTHWEST WINDS 15 TO 20 MPH WITH
                    GUSTS TO 25 TO 30 MPH.
RIDGE TOP WINDS.....NORTHWEST 20 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......700-1200 FT AGL.
TRANSPORT WINDS.....NORTHWEST 22 TO 25 MPH.
SMOKE DISPERSAL.....POOR (15200-19300 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT).
MIN TEMPERATURE.....20-24.
MAX HUMIDITY........60-65 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO
                    AROUND 30 MPH.
RIDGE TOP WINDS.....NORTHWEST 20 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 24 TO 25 MPH.
SMOKE DISPERSAL.....POOR (7300 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....30-35.
MIN HUMIDITY........25-30 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
                    AROUND 25 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 22 TO 23 MPH.
SMOKE DISPERSAL.....POOR (6200-12200 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 19. NORTHWEST WINDS
AROUND 10 TO 15 MPH.
.FRIDAY...PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE UPPER 30S.
NORTHWEST WINDS AROUND 11 MPH.
.SATURDAY...PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER
30S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 9.
HIGHS IN THE UPPER 20S. NORTHWEST WINDS AROUND 10 MPH.

$$

FORECASTER...HATTINGS
REQUESTED BY...BOB BUHR
REASON FOR REQUEST...PRESCRIBED
.TAG 20130116.POWDE.01/RIW