FNUS73 KMPX 162101
FWSMPX

SPOT FORECAST FOR SBR UNIT 8...USFWS
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
401 PM CDT THU APR 16 2009

FORECAST IS BASED ON IGNITION TIME OF 1700 CDT ON APRIL 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AREA REMAINS UNDER INFLUENCE OF DRY HIGH PRESSURE CENTERED OVER THE GREAT LAKES.
THIS HAS HELPED RHS GET DOWN INTO THE UPPER 20S THIS AFTERNOON...WHICH IS WHERE
RHS WILL BE AT IGNITION TIME. THE RELATIVE HUMIDITIES WILL SLOWLY RISE BACK INTO
THE 30S AS THE SUN STARTS GETTING LOWER IN THE SKY AND TEMPERATURES COOL. WINDS
WILL BE FROM THE SSE TO SSW...STARTING OUT IN THE 10 TO 15 MPH RANGE WITH GUSTS
TO 20 MPH AT IGNITION...CALMING DOWN TO UNDER 10 MPH NEAR SUNSET. MID AND UPPER
LEVEL CLOUD COVER WILL BE ON THE INCREASE THROUGH THE AFTERNOON AS A SYSTEM
SLOWLY APPROACHES FROM THE WEST...THOUGH ANY RAIN WILL HOLD OFF UNTIL SATURDAY.

.REST OF TODAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........68 AT IGNITION...MAX 68.
RH..................28 PERCENT AT IGNITION...MIN 23 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 12 MPH AT IGNITION...OTHERWISE
                    SOUTH WINDS 8 TO 13 MPH.
HAINES INDEX........5 OR MODERATE AT IGNITION...MAX 5.
SMOKE DISPERSAL.....EXCELLENT (77600-85000).
MIXING HEIGHT.......5000-5800 FT AGL.
MIXING WINDS........SOUTH 20 TO 21 MPH.

TIME (CDT)      4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM
SKY (%).........PC  PC  PC  MC  MC  MC  MC  MC  MC  MC  MC  MC
WEATHER COV.....
WEATHER TYPE....
TEMP............68  68  67  65  62  59  57  55  53  52  50  48
RH..............28  27  26  27  31  35  38  40  43  44  50  54
20 FT WIND DIR..S   S   S   S   S   SE  SE  SE  S   S   S   S
20 FT WIND SPD..12  11  8   6   5   5   4   4   4   4   4   4
20 FT WIND GUST.20  20  15  10          5   10  10  10  10  10
HAINES INDEX....5   5   4   4   4   4   4   4   5   5   5   5

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 45.
RH..................MAX 68 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH EARLY IN THE EVENING
                    BECOMING LIGHT.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (40700-71400) DECREASING TO
                    POOR TO FAIR (1300-16100) EARLY IN THE EVENING.
MIXING HEIGHT.......3100-4600 FT AGL DECREASING TO 300-1700 FT AGL
                    EARLY IN THE EVENING.
MIXING WINDS........SOUTHEAST 13 TO 21 MPH SHIFTING TO THE SOUTH 7
                    TO 9 MPH IN THE LATE EVENING AND OVERNIGHT.

.FRIDAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........MAX 68.
RH..................MIN 34 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH EARLY
                    IN THE MORNING.
HAINES INDEX........3 TO 5 OR OR VERY LOW TO OR MODERATE.
SMOKE DISPERSAL.....POOR TO GOOD (1300-38600).
MIXING HEIGHT.......300-1900 FT AGL INCREASING TO 4700-4900 FT AGL.
MIXING WINDS........SOUTHWEST 7 TO 16 MPH.

$$
FORECASTER...GRIESINGER
REQUESTED BY...RUSS LANGFORD
TYPE OF REQUEST...PRESCRIBED
.TAG 20090416.SBRUN.01/MPX


SKY (%) LEGEND
CLR = CLEAR
MCR = MOSTLY CLEAR
PC = PARTLY CLOUDY
MC = MOSTLY CLOUDY
CDY = CLOUDY