FNUS73 KPAH 071350
FWSPAH

SPOT FORECAST FOR BROWN BARRENS...ILLINOIS DNR
NATIONAL WEATHER SERVICE PADUCAH KY
850 AM CDT THU APR 7 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 07.

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL CONTINUE TO PROVIDE PLEASANT SPRING WEATHER TO
THE QUAD STATE AREA...AS SOUTHERLY WINDS MAINTAIN WARM TEMPERATURES
RIGHT THROUGH THE WEEKEND. A FRONTAL BOUNDARY WILL BECOME STATIONARY
IN THE VICINITY OF THE REGION OVER THE NEXT FEW DAYS. THIS WILL
RESULT IN THE CHANCE FOR ISOLATED SHOWERS AND THUNDERSTORMS TONIGHT
THROUGH SATURDAY. THE GREATEST POTENTIAL FOR ACTIVITY DURING THAT
TIME FRAME WILL BE LATE FRIDAY AND FRIDAY NIGHT. A STRONG COLD FRONT
WILL SWEEP ACROSS THE REGION SUNDAY NIGHT...BRINGING A BETTER CHANCE
OF THUNDERSTORMS LATE IN THE WEEKEND.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).
TEMPERATURE.........61 AT IGNITION...MAX 71.
RH..................65 PERCENT AT IGNITION...MIN 48 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 6 MPH AT IGNITION...OTHERWISE
                    LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH EARLY IN
                    THE MORNING.
CWR.................0 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 4.
MIXING HEIGHT.......1400 FT AGL AT IGNITION...OTHERWISE 200-2000 FT
                    AGL INCREASING TO 2300-3200 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 5 TO 14 MPH INCREASING TO AROUND 15 MPH
                    LATE IN THE AFTERNOON.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........MC  MC  MC  MC  MC  MC  MC  MC  MC
WEATHER COV.....
WEATHER TYPE....
TEMP............61  63  66  68  69  70  70  70  70
RH..............65  62  61  59  57  55  55  55  57
20 FT WIND DIR..S   S   S   S   S   S   S   S   S
20 FT WIND SPD..5   5   5   5   5   6   6   6   6
20 FT WIND GUST.                10  10  10  10  10
MIX HGT (KFT)...1.4 1.6 1.8 2.0 2.3 2.6 2.9 3.1 3.2
TRANSP WIND DIR.SW  S   S   S   S   S   S   S   S
TRANSP WIND SPD.6   6   7   8   9   12  13  14  15
CWR.............0   0   0   0   0   0   0   0   0
HAINES INDEX....4   4   4   4   4   4   4   3   3

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS.
TEMPERATURE.........MIN 60.
RH..................MAX 87 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 7 MPH.
CWR.................0 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1200-2900 FT AGL DECREASING TO 200-400 FT AGL
                    IN THE LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....SOUTH 6 TO 15 MPH.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........MCLDY  MCLDY  MCLDY  MCLDY  MCLDY  MCLDY
WEATHER COV.....S CHC  S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............69     66     64     63     62     62
RH..............59     65     70     75     78     81
20 FT WIND......SE 6   S 5    S 6    S 6    S 6    S 5
20 FT WIND GUST.10     10     10     10     10     10
MIX HGT (FT)....2900   1200   200    400    400    200
TRANSPORT WIND..SE 15  SE 12  SE 10  SE 10  S 8    S 6
CWR.............0      0      0      0      0      0
HAINES INDEX....3      3      3      3      3      3

$$
FORECASTER...BLANCHARD
REQUESTED BY...BOB LINDSAY
TYPE OF REQUEST...PRESCRIBED
.TAG 20110407.BROWN.01/PAH