FNUS73 KBIS 271507
FWSBIS

SPOT FORECAST FOR LONETREE WMA 5...NDGFD
NATIONAL WEATHER SERVICE BISMARCK ND
1007 AM CDT TUE APR 27 2010

FORECAST IS BASED ON IGNITION TIME OF 1400 CDT ON APRIL 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...FORECAST SOUNDINGS SHOW THAT A TEMPERATURE OF 54F
WILL BE NEEDED TO BREAK THE INVERSION. AS OF 10AM CDT...THE
INVERSION APPEARS TO OCCUR FROM ABOUT 140 FEET ABOVE GROUND LEVEL
TO AROUND 2340 FEET ABOVE GROUND LEVEL. THE INVERSION LOOKS TO
BREAK BETWEEN 1PM CDT AND 2PM CDT.

SURFACE HIGH PRESSURE OVER WESTERN NORTH DAKOTA WILL GRADUALLY
SLIDE EASTWARD TODAY. NORTHWEST WINDS AT 5 TO 10 MPH WILL BECOME
SOUTHWESTERLY AROUND 2 PM CDT AND SOUTH AT 10 TO 15 MPH BY LATE
AFTERNOON. WINDS WILL THEN BEGIN TO INCREASE EARLY WEDNESDAY IN
ADVANCE OF A RAPIDLY DEEPENING SURFACE LOW PRESSURE SYSTEM. GUSTS
TO 40 MPH ARE POSSIBLE BY WEDNESDAY AFTERNOON. LOW-LEVEL MOISTURE
FROM RAIN/SNOW MONDAY SHOULD HELP TO KEEP RELATIVE HUMIDITIES
ABOVE 30 PERCENT TODAY.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING.
                    TEMPERATURE.........59F AT IGNITION...MAX 62F.
                    MIN HUMIDITY........44 PERCENT AT IGNITION...MIN 39 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 5 TO 10 MPH AT IGNITION...OTHERWISE
                    WEST WINDS SHIFTING TO THE SOUTHWEST AROUND 5 TO 10 MPH
                    EARLY IN THE AFTERNOON (2PM)...THEN INCREASING TO SOUTH
                    10 TO 15 MPH LATE IN THE AFTERNOON (5PM).
HAINES INDEX........5 MODERATE AT IGNITION...MAX 5.
SMOKE DISPERSAL.....VERY GOOD.
LAL.................1.
CWR.................0 PERCENT.

$$
FORECASTER...SIMOSKO
REQUESTED BY...RANDY LITTLEFIELD
TYPE OF REQUEST...PRESCRIBED
.TAG 20100427.LONET.01/BIS