FNUS73 KUNR 251452
FWSUNR

SPOT FORECAST FOR OLD GROWTH PILE BURN...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
752 AM MST MON JAN 25 2010

FORECAST IS BASED ON IGNITION TIME OF 0930 MST ON JANUARY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...A STRONG LOW PRESSURE SYSTEM OVER LAKE SUPERIOR WILL
CONTINUE TO PRODUCE A TIGHT PRESSURE GRADIENT OVER THE AREA TODAY.
THIS WILL CONTINUE TO PRODUCE GUSTY NORTHWESTERLY WINDS THROUGH
THE DAY.  WINDS WILL DIMINISH TONIGHT.  QUIETER CONDITIONS ARE
EXPECTED ON TUESDAY...THOUGH POOR SMOKE DISPERSAL IS EXPECTED AS
AN INVERSION DEVELOPS OVER THE AREA.

.TODAY...
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SNOW.
MAX TEMPERATURE.....25.
MIN HUMIDITY........45 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 15 TO 30 MPH....GUSTS TO
                    40 MPH.
CWR.................10 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......600 TO 1600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 40 TO 50 MPH DECREASING TO 30 TO 40
                    MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
MIN TEMPERATURE.....11.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 20 MPH. GUSTS TO 25 MPH
                    IN THE EVENING.
CWR.................0 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20 TO 30 MPH DECREASING TO 10
                    TO 20 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR.

.TUESDAY...
SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....26.
MIN HUMIDITY........60 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH.
CWR.................0 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 7 TO 13 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...JS
REQUESTED BY...AAREN NELLEN
TYPE OF REQUEST...PRESCRIBED
.TAG 20100125.OLDGR.01/UNR