FNUS73 KUNR 021355
FWSUNR

SPOT FORECAST FOR DETO PILES...NPS
NATIONAL WEATHER SERVICE RAPID CITY SD
655 AM MST FRI MAR 2 2012

FORECAST IS BASED ON IGNITION TIME OF 0800 MST ON MARCH 02.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...
A COLD FRONT WILL MOVE THROUGH THE REGION TODAY...BRINGING WITH IT
A CHANCE FOR LIGHT SNOW SHOWERS IN NORTHEAST WYOMING. HEAVIER SNOW
IS EXPECTED JUST EAST OF DEVILS TOWER IN THE NORTHERN BLACK
HILLS...WHERE UPSLOPE ENHANCEMENT WILL FAVOR HIGHER SNOWFALL
AMOUNTS TODAY THROUGH SATURDAY. GUSTY NORTHWEST WINDS WILL ALSO
ACCOMPANY THE COLD FRONT. WINDS WILL SUBSIDE AROUND SUNSET BEFORE
BECOMING BREEZY FROM THE NORTHWEST ON SATURDAY. ANOTHER CHANCE OF
SNOW IS IN THE FORECAST FOR SATURDAY...ALONG WITH WARMER TEMPERATURES.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.
TEMPERATURE.........13 AT IGNITION...MAX 29.
RH..................70 PERCENT AT IGNITION...MIN 55 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 13 MPH AT
                    IGNITION...OTHERWISE NORTHWEST WINDS 10 TO 18
                    MPH INCREASING TO 17 TO 21 MPH BY NOON.
CWR.................22 PERCENT...BUT MUCH HIGHER JUST EAST OF THE
                    BURN AREA.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4500 TO 5000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 16 TO 22 MPH INCREASING TO 39 TO 46
                    MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
TEMPERATURE.........MIN 12.
RH..................MAX 92 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 16 MPH.
CWR.................3 PERCENT...BUT MUCH HIGHER JUST EAST OF THE
                    BURN AREA.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 37 TO 43 MPH BECOMING WEST 16 TO 23
                    MPH.
SMOKE DISPERSAL.....EXCELLENT DECREASING TO POOR.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.
TEMPERATURE.........MAX 38.
RH..................MIN 57 PERCENT.
WIND (20 FT)........WEST WINDS 14 TO 18 MPH.
CWR.................22 PERCENT...BUT MUCH HIGHER JUST EAST OF THE
                    BURN AREA.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900 TO 4900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 24 TO 31 MPH INCREASING TO 35 TO 41
                    MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT.

$$
FORECASTER...KE
REQUESTED BY...KEITH MITCHELL
TYPE OF REQUEST...PRESCRIBED
.TAG 20120302.DETOP.01/UNR