FNUS73 KBIS 301454
FWSBIS

SPOT FORECAST FOR HB-36...USFWS
NATIONAL WEATHER SERVICE BISMARCK ND
954 AM CDT WED SEP 30 2009

FORECAST IS BASED ON IGNITION TIME OF 1330 CDT ON SEPTEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A LOW PRESSURE SYSTEM IN FAR SOUTHEAST MONTANA...WITH AN INVERTED
TROUGH ALONG THE MONTANA AND NORTH DAKOTA BORDER THIS MORNING WILL
BRING ANOTHER WINDY DAY TO NORTHERN NORTH DAKOTA TODAY. SOUTHEAST
WINDS OF 20 TO 25 MPH WITH GUSTS OF 30 TO 35 MPH ARE FORECAST AT
IGNITION TIME. BY LATE AFTERNOON...AROUND 4 TO 5 PM
CDT...SOUTHEAST WINDS WILL LIKELY DECREASE TO 15 TO 20 MPH WITH
GUSTS OF 25 TO 30 MPH. AS THE TROUGH CONTINUES TO APPROACH...WIND
GUSTS WILL DIMINISH SIGNIFICANTLY BY SUNSET...WITH SUSTAINED EAST
SOUTHEAST WINDS OF 15 TO 20 MPH. THE TROUGH WILL PASS THROUGH THE
BURN AREA BY MIDNIGHT CDT WEDNESDAY NIGHT. WINDS WILL TURN TO THE
NORTHWEST AFTER THE PASSAGE OF THE TROUGH....INCREASING TO BECOME
SUSTAINED AT 15 TO 20 MPH WITH GUSTS OF 25 TO 30 MPH BY SUNRISE
THURSDAY. RAIN SHOWERS WILL LIKELY BEGIN NEAR SUNSET THIS EVENING
AND CONTINUE THROUGH THURSDAY. MINIMUM RELATIVE HUMIDITIES TODAY
SHOULD REMAIN BETWEEN 40 AND 50 PERCENT.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS
                    NEAR SUNSET
TEMPERATURE.........63 AT IGNITION...MAX 65.
RH..................50 PERCENT AT IGNITION...MIN 40 PERCENT.
WIND (20 FT)........WINDS SOUTHEAST AT 25 MPH AT
                    IGNITION...OTHERWISE WINDY. SOUTHEAST WINDS
                    15 TO 20 MPH INCREASING TO AROUND 25 MPH
                    EARLY IN THE AFTERNOON WITH GUSTS OF 30 TO
                    35 MPH...THEN DECREASING TO AROUND 20 MPH LATE
                    IN THE AFTERNOON WITH GUSTS OF 25 TO 30 MPH.
HAINES INDEX........2 VERY LOW AT IGNITION...MAX 2.
SMOKE DISPERSAL.....VERY GOOD.
LAL.................1.
CWR.................0 PERCENT.

.TONIGHT...

SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY.
TEMPERATURE.........MIN 44.
RH..................MAX 79 PERCENT.
WIND (20 FT)........EAST WINDS 10 TO 15 MPH SHIFTING TO THE
                    NORTHWEST EARLY IN THE MORNING.
SMOKE DISPERSAL.....POOR.
LAL.................1.
CWR.................66 PERCENT.

.THURSDAY...

SKY/WEATHER.........CLOUDY. RAIN SHOWERS.
TEMPERATURE.........MAX 53.
RH..................MIN 54 PERCENT.
WIND (20 FT)........NORTH WINDS 10 TO 15 MPH.
HAINES INDEX........2 VERY LOW.
SMOKE DISPERSAL.....FAIR.
LAL.................1.
CWR.................79 PERCENT.

$$
FORECASTER...PJA
REQUESTED BY...COLLEEN GRAUE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090930.HB36_.01/BIS