FNUS73 KFGF 211349
FWSFGF

SPOT FORECAST FOR BLUE STEM SNA...THE NATURE CONSERVANCY
NATIONAL WEATHER SERVICE GRAND FORKS ND
849 AM CDT THU MAY 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON MAY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
BUILDING HIGH PRESSURE INTO THE VALLEY WILL PRODUCE A SUNNY
AND MILD DAY IN THE 60S. NORTHWEST WINDS AROUND IGNITION
TIME WILL BEGIN TO WEAKEN AFTER MID AFTERNOON...BUT
THINKING THE NORTHWEST DIRECTION WILL HOLD UNTIL SHORTLY
BEFORE 6 PM. THERE COULD BE SOME WIND GUSTS UP TO 20 MPH
THROUGH MID AFTERNOON. GOOD SUNSHINE AND GOOD POTENTIAL FOR
MIXING OF DRIER AIR ALOFT SHOULD ALLOW THE RELATIVE
HUMIDITY TO DROP TO 25 TO 30 PERCENT. WOULD NOT EXPECT
LOWER RH...BUT COULD BE SLIGHTLY HIGHER IF THERE IS LESS
THAN EXPECTED MIXING. SMOKE DISPERSION LOOKS EXCELLENT
UNTIL THE EARLY EVENING WHEN THE WINDS REALLY SLACK OFF.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........NORTH WINDS 10 TO 15 MPH.
MIXING HEIGHT.......300-1500 FT AGL INCREASING TO 6900-7500 FT AGL.
MIXING WINDS........NORTHWEST 10 TO 17 MPH INCREASING TO 15 TO 23
                    MPH IN THE LATE MORNING AND AFTERNOON.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........30  26  25  24  24  25  27
WEATHER COV.....
WEATHER TYPE....
TEMP............60  63  64  65  66  66  66
RH..............36  30  30  28  27  29  31
20 FT WIND DIR..NW  NW  NW  NW  NW  N   N
20 FT WIND SPD..14  14  14  12  10  9   7
20 FT WIND GUST.20  20  20  20  15  15  10

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........65-70 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........28     28     28     30     35     41
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............65     60     54     50     46     44
RH..............32     39     47     54     59     65
20 FT WIND......N 6    NE 5   E 5    SE 5   SE 6   SE 7
20 FT WIND GUST.10     10     10     10     10     10

$$
FORECASTER...WJB
REQUESTED BY...MATT MECKLENBURG
TYPE OF REQUEST...PRESCRIBED
.TAG 20090521.BLUES.01/FGF