FNUS73 KBIS 211312
FWSBIS

SPOT FORECAST FOR ZAHL...USFWS
NATIONAL WEATHER SERVICE BISMARCK ND
812 AM CDT FRI AUG 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE AT 701-223-4582.

.DISCUSSION...THE AXIS OF A SURFACE HIGH PRESSURE RIDGE WAS RIGHT
OVER THE PRESCRIBED BURN AREA EARLY THIS MORNING. THIS WILL MEAN
LIGHT WIND...SPEEDS UNDER 10 MPH...AND WITH VARIABLE DIRECTION...
FOLLOWING THE TERRAIN FOR THE MOST PART AT LEAST THROUGH THE
MORNING. BY THIS AFTERNOON...AS THE RIDGE AXIS PUSHES EAST...THE
WIND WILL TURN CLOCKWISE...TO BE FROM THE NORTHEAST THEN
EAST...WITH SPEEDS AROUND 10 MPH (FLOWING OUT AND AWAY FROM THE
HIGH PRESSURE RIDGE).

SUNNY THROUGH THE DAY WITH NO CHANCE OF RAIN.

.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........70 AT IGNITION...MAX 81.
RH..................49 PERCENT AT IGNITION...MIN 30 PERCENT.
WIND (20 FT)........WINDS NORTH AT 5 MPH AT IGNITION...OTHERWISE
                    BECOMING NORTHEAST THEN EAST AT 10 MPH.
HAINES INDEX........3 VERY LOW AT IGNITION...MAX 3.
SMOKE DISPERSAL.....MARGINAL.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 51.
RH..................MAX 79 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 88.
RH..................MIN 23 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 10 MPH INCREASING TO
                    SOUTH LATE IN THE MORNING...THEN BECOMING
                    SOUTHEAST 5 TO 10 MPH IN THE AFTERNOON.
HAINES INDEX........5 MODERATE.
SMOKE DISPERSAL.....VERY GOOD.

$$
FORECASTER...JP MARTIN
REQUESTED BY...COLLEEN GRAUE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090821.ZAHL_.01/BIS