FNUS73 KBIS 311458
FWSBIS

SPOT FORECAST FOR ZAHL UNIT 7...USFWS
NATIONAL WEATHER SERVICE BISMARCK ND
958 AM CDT MON AUG 31 2009

FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON AUGUST 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE OVER IOWA WITH LOW PRESSURE OVER EASTERN
MONTANA SHOULD KEEP THE WINDS SOUTHEAST THROUGH THE DAY.  LIGHT MORNING
WINDS WILL INCREASE TO 15 TO 20 MPH AS THE MORNING INVERSION BREAKS
ALLOWING STRONGER WINDS ALOFT TO MIX DOWN AND HELP STRENGTHEN SURFACE
WINDS.

RELATIVE HUMIDITY TREND THIS AFTERNOON
HOUR   RH

1000   63 (CURRENT)

1200   40
1300   35
1400   32
1500   29
1600   28
1700   27
1800   29


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........78 AT IGNITION...MAX 83.
RH..................35 PERCENT AT IGNITION...MIN 30 PERCENT.
WIND (20 FT)........WINDS SOUTHEAST AT 15 TO 20 MPH AT IGNITION.
HAINES INDEX........4.
SMOKE DISPERSAL.....VERY GOOD.
CWR.................0 PERCENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 54.
RH..................MAX 80 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 15 MPH DECREASING TO 5
                    TO 10 MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR.
CWR.................0 PERCENT.

.TUESDAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........MAX 84.
RH..................MIN 30 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS UP TO 5 MPH INCREASING TO
                    AROUND 10 MPH EARLY IN THE AFTERNOON...THEN
                    DECREASING TO AROUND 5 MPH LATE IN THE
                    AFTERNOON.
HAINES INDEX........4 LOW.
SMOKE DISPERSAL.....GOOD.
CWR.................0 PERCENT.

$$
FORECASTER...WALKER
REQUESTED BY...COLLEEN GRAUE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090831.ZAHLU.01/BIS