FNUS73 KFGF 221345
FWSFGF

SPOT FORECAST FOR OLSEN NPB...MN DNR
NATIONAL WEATHER SERVICE GRAND FORKS ND
845 AM CDT THU APR 22 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

EXPECT A WARM AND SUNNY DAY WITH LIGHT SOUTHERLY WINDS AT THE BURN
SITE. SINCE THE WIND SPEEDS WILL BE LIGHT...ANTICIPATE SOME
VARIABILITY IN WIND DIRECTION FROM SOUTHWEST TO SOUTHEAST.
PLUS...THE WINDS WILL BE LIGHT ENOUGH THAT THE FIRE COULD CONTROL
THE LOCAL WIND FIELD AND CREATE ITS OWN GUSTS. RELATIVE HUMIDITY
SHOULD REACH A MINIMUM NEAR 15 TO 20 PERCENT.

.TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH.
MIXING HEIGHT.......300 FT AGL INCREASING TO 6800-7800 FT AGL.
MIXING WINDS........SOUTHWEST 6 TO 12 MPH.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........21  21  22  23  24  25  26  27
WEATHER COV.....
WEATHER TYPE....
TEMP............54  58  62  65  67  67  68  68
RH..............42  33  28  26  22  20  21  23
20 FT WIND DIR..S   S   S   S   S   S   S   SE
20 FT WIND SPD..5   6   6   6   6   6   5   5
20 FT WIND GUST.10  10  10  10  10  10  10  10

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........60-65 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......7600 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........SOUTHEAST 7 TO 10 MPH.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........27     28     28     29     32     36
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............67     60     54     50     47     45
RH..............23     31     40     48     54     58
20 FT WIND......SE 5   SE 5   SE 6   SE 7   SE 7   SE 7
20 FT WIND GUST.10     10     10     10     15     15

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN
                    THE AFTERNOON.
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........32-37 PERCENT.
WIND (20 FT)........EAST WINDS 11 TO 16 MPH. GUSTS UP TO 25 MPH IN
                    THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......300 FT AGL INCREASING TO 6900-8200 FT AGL.
MIXING WINDS........SOUTHEAST 10 TO 17 MPH INCREASING TO AROUND 32
                    MPH.

TIME (CDT)      7 AM      10 AM     1 PM      4 PM
SKY (%).........40        41        44        53
WEATHER COV.....                    S CHC     S CHC
WEATHER TYPE....NONE      NONE      RNSHWR    RNSHWR
TEMP............43        53        64        69
RH..............65        52        41        37
20 FT WIND......SE 8G15   SE 11G20  SE 14G25  E 14G25

$$
FORECASTER...GROCHOCINSKI
REQUESTED BY...ERIK ANTHONISEN
TYPE OF REQUEST...PRESCRIBED
.TAG 20100422.OLSEN.01/FGF