FNUS73 KMPX 061221
FWSMPX

SPOT FORECAST FOR RIVER TERRACE PRAIRIE SNA...MNDNR
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
721 AM CDT FRI MAY 6 2011

FORECAST IS BASED ON IGNITION TIME OF 1230 CDT ON MAY 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK RIDGE OF HIGH PRESSURE THAT WAS CENTERED ACROSS MINNESOTA
EARLY THIS MORNING...WILL MOVE SOUTHEAST WITH AN AREA OF LOW
PRESSURE DEVELOPING ACROSS SOUTH DAKOTA. MOST AREA WILL REMAIN
DRY TODAY. HOWEVER...AN ISOLATED SHOWER IS POSSIBLE AROUND LADYSMITH
BY THE AFTERNOON...AND IN FAR WEST CENTRAL MINNESOTA AFTER 4 PM DUE
TO WEAK INSTABILITY.

THE AREA OF LOW PRESSURE ACROSS SOUTH DAKOTA THIS AFTERNOON WILL
MOVE EAST-SOUTHEAST ACROSS SOUTHERN MINNESOTA OVERNIGHT AND
INCREASE THE CHANCE OF PRECIPITATION.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........67 AT IGNITION...MAX 69.
RH..................37 PERCENT AT IGNITION...MIN 28 PERCENT.
WIND (20 FT)........WINDS WEST AT 7 MPH AT IGNITION...OTHERWISE
                    LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH IN
                    THE LATE MORNING AND AFTERNOON.
HAINES INDEX........4 OR LOW AT IGNITION...MAX 5.
SMOKE DISPERSAL.....POOR TO GOOD (1700-31300) INCREASING TO GOOD TO
                    EXCELLENT (54100-83300) LATE IN THE
                    MORNING...THEN INCREASING TO EXCELLENT
                    (75100-123800) LATE IN THE MORNING DECREASING
                    TO GOOD TO EXCELLENT (48400-61100) LATE IN THE
                    AFTERNOON.
MIXING HEIGHT.......300-1800 FT AGL INCREASING TO 9300-11000 FT
                    AGL.
MIXING WINDS........WEST 7 TO 16 MPH.

TIME (CDT)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM
SKY (%).........PCLDY  PCLDY  PCLDY  MCLDY  MCLDY  MCLDY
WEATHER COV.....                                   CHANCE
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   RNSHWR
TEMP............58     64     67     69     67     63
RH..............47     37     32     28     30     36
20 FT WIND......W 4    W 5    W 6    W 5    S 5    S 4
20 FT WIND GUST.5      10     10     10            5
HAINES INDEX....5      4      4      5      5      5

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
                    CHANCE OF RAIN SHOWERS. CHANCE OF RAIN 50
                    PERCENT.
TEMPERATURE.........MIN 47.
RH..................MAX 89 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH IN
                    THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR TO GOOD (2400-37000).
MIXING HEIGHT.......8500 FT AGL DECREASING TO 300-900 FT AGL.
MIXING WINDS........SOUTHWEST 6 TO 7 MPH SHIFTING TO THE SOUTHEAST
                    9 TO 16 MPH EARLY IN THE EVENING.

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY. CHANCE OF RAIN SHOWERS THROUGH
                    THE DAY. CHANCE OF RAIN 40 PERCENT.
TEMPERATURE.........MAX 63.
RH..................MIN 52 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 8 MPH.
HAINES INDEX........3 OR VERY LOW.
SMOKE DISPERSAL.....POOR TO GOOD (8200-44300) INCREASING TO GOOD TO
                    EXCELLENT (36500-73800) IN THE LATE MORNING AND
                    EARLY AFTERNOON...THEN DECREASING TO POOR TO
                    FAIR (9100-14400) LATE IN THE AFTERNOON.
MIXING HEIGHT.......700-2300 FT AGL INCREASING TO 4900-5500 FT AGL.
MIXING WINDS........SOUTHEAST 15 TO 23 MPH INCREASING TO 21 TO 26
                    MPH LATE IN THE MORNING...THEN DECREASING TO 9
                    TO 15 MPH EARLY IN THE AFTERNOON SHIFTING TO
                    THE EAST 2 TO 3 MPH LATE IN THE AFTERNOON.

$$
FORECASTER...MCQUIRTER
REQUESTED BY...STEVE WILSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20110506.RIVER.01/MPX