FNUS73 KTOP 041425
FWSTOP

SPOT FORECAST FOR P609...BIA
NATIONAL WEATHER SERVICE TOPEKA KS
925 AM CDT THU APR 4 2013

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

TODAY/TONIGHT...TEMPERATURES WILL BE A BIT WARMER ON THURSDAY AS
MORE SUNSHINE AND LIGHT WESTERLY WINDS AROUND 5 MPH AFFECT THE
AREA. RH VALUES WILL REMAIN IN THE 30 TO 35 PERCENT RANGE THIS
AFTERNOON. MIXING HEIGHTS WILL BE AROUND 3000 FEET...WHICH SHOULD
ALLOW FOR GOOD VENTILATION...BUT LIGHT WINDS MAY MAKE
EVACUATION/DISPERSAL MORE DIFFICULT. FOR TONIGHT EXPECT THE LOW
LEVEL INVERSION TO TAKE PLACE AFTER SUNSET WITH LIGHT SOUTHERLY
WINDS AROUND 5 MPH OVERNIGHT.

FRIDAY...SOUTHERLY WINDS WILL INCREASE THROUGHOUT THE DAY TO
AROUND 15 TO 25 MPH SUSTAINED WITH GUSTS UP TO 30 MPH. DEEP MIXING
WILL ALLOW FOR GOOD MIXING HEIGHTS AND STRONG WINDS WILL ALLOW FOR
GOOD DISPERSAL. MOISTURE FLUX INTO THE AREA SHOULD KEEP RH VALUES
ABOVE 30 PERCENT THROUGH THE WARMEST PART OF THE DAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........51 AT IGNITION...MAX 62.
RH..................48 PERCENT AT IGNITION...MIN 35.
WIND (20 FT)........WINDS WEST AT 5 MPH AT IGNITION...OTHERWISE
                    NORTHWEST WINDS AROUND 5 MPH SHIFTING TO THE
                    WEST IN THE LATE MORNING AND AFTERNOON.
HAINES INDEX........3 OR VERY LOW AT IGNITION...MAX 4.
SMOKE DISPERSAL.....FAIR /21900 KNOT-FT/ AT IGNITION.MAX...FAIR
                    /28000 KNOT-FT/.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 38.
RH..................MAX 89 PERCENT.
WIND (20 FT)........LIGHT WINDS.
HAINES INDEX........MAX 4.
SMOKE DISPERSAL.....MIN...POOR /900 KNOT-FT/.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 68.
RH..................MIN 40 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 8 TO 13 MPH LATE IN
                    THE MORNING...THEN INCREASING TO 16 TO 21 MPH
                    WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.
HAINES INDEX........MAX 5.
SMOKE DISPERSAL.....MAX...EXCELLENT /95700 KNOT-FT/.

$$
FORECASTER...LEIGHTON
REQUESTED BY...ADAM ROGERS
TYPE OF REQUEST...PRESCRIBED
.TAG 20130404.P609_.01/TOP