Suppression Forecast
Issued by NWS Chicago, IL

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FNUS73 KLOT 231315
FWSLOT

SPOT FORECAST FOR MARWUETTE TRAIL UNIT 7...INDIANA DUNES
NATIONAL WEATHER SERVICE CHICAGO IL
815 AM CDT THU APR 23 2015

FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
NORTHWEST WINDS EARLY THIS MORNING WILL HOLD THROUGH IGNITION TIME
BEFORE TURNING MORE NORTHEAST BY EARLY AFTERNOON AND THEN GRADUALLY
EASING IN SPEED. AS THE WIND TURNS NORTHERLY AND THEN NORTHEASTERLY
THAT WILL CAUSE TEMPERATURES TO FLATLINE AND LIKELY DROP A COUPLE
DEGREES IN THE AFTERNOON. MIXING HEIGHTS TOO WILL BEGIN TO DROP FROM
12 PM ONWARD.

FRIDAY WILL LIKELY SEE A SIMILAR TREND IN FAR NORTHWEST INDIANA WITH
NORTHEAST WINDS IN THE AFTERNOON HOLDING TEMPERATURES STEADY OR EVEN
CAUSING THEM TO FALL.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........47 AT IGNITION...MAX 48.
RH..................47 PERCENT AT IGNITION...MIN 42 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 12 MPH AT
                    IGNITION...OTHERWISE NORTHWEST WINDS 7 TO 13
                    MPH SHIFTING TO THE NORTHEAST 6 TO 9 MPH IN THE
                    AFTERNOON.
CHANCE OF PCPN......0 PERCENT.
MIXING HEIGHT.......1200-2600 FT AGL INCREASING TO 5000 FT AGL AT
                    IGNITION...OTHERWISE 3300-5000 FT AGL IN THE
                    LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 13 TO 22 MPH SHIFTING TO THE WEST
                    AROUND 12 MPH LATE IN THE AFTERNOON.
MIXING TEMP 1700FT..45.
SMOKE DISPERSAL.....FAIR TO GOOD (21300-47300 KNOT-FT) INCREASING
                    TO EXCELLENT /78800 KNOT-FT/ AT IGNITION.
                    MAX...EXCELLENT /83000 KNOT-FT/ IN THE LATE
                    MORNING AND AFTERNOON...THEN DECREASING TO FAIR
                    (26500 KNOT-FT) LATE IN THE AFTERNOON.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........29  30  31  28  25  23  20  17
WEATHER COV.....
WEATHER TYPE....
TEMP............48  47  47  46  46  45  45  44
RH..............47  45  45  46  46  45  45  43
20 FT WIND DIR..320 330 340 020 010 010 020 040
20 FT WIND SPD..10  9   8   7   7   6   5   5
20 FT WIND GUST.15  15  15  15  15  10  10
MIX HGT (KFT)...4.9 5.0 4.6 4.3 4.0 3.7 3.5 3.3
TRANSP WIND DIR.310 310 310 300 290 280 280 280
TRANSP WIND SPD.20  18  16  14  13  12  12  12
CWR.............0   0   0   0   0   0   0   0
VRATE KT-FT/100079  70  60  53  51  44  35  27

.TONIGHT...

SKY/WEATHER.........CLEAR. PATCHY FROST AFTER MIDNIGHT.
TEMPERATURE.........MIN 36.
RH..................MAX 72 PERCENT.
WIND (20 FT)........LIGHT WINDS.
CHANCE OF PCPN......0 PERCENT.
MIXING HEIGHT.......1400-2800 FT AGL DECREASING TO 300-700 FT AGL
                    IN THE LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 7 TO 16 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1500-22200 KNOT-FT).

TIME (CDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
SKY (%).........14  13  12  11  10  10  9   10  11  12  13  15
WEATHER COV.....                        PTY PTY PTY PTY PTY PTY
WEATHER TYPE....                        FST FST FST FST FST FST
TEMP............46  47  45  43  41  40  40  39  38  37  36  36
RH..............43  43  49  55  59  62  59  62  64  67  69  72
20 FT WIND DIR..050 060 100 120 150 200 230 230 240 240 220 170
20 FT WIND SPD..3   2   2   2   2   2   2   2   2   2   2   2
20 FT WIND GUST.5   5   5               5   5   5   5
MIX HGT (KFT)...2.8 2.1 1.4 0.7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.280 290 290 300 300 310 310 310 310 310 310 300
TRANSP WIND SPD.13  14  15  16  16  16  15  14  12  10  8   7
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
VRATE KT-FT/100022  19  14  8   3   3   3   3   2   2   2   2

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN
                    BECOMING MOSTLY CLOUDY. PATCHY FROST EARLY IN
                    THE MORNING.
TEMPERATURE.........MAX 51.
RH..................MIN 44 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 6 TO 9 MPH.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......300-600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 3 TO 6 MPH SHIFTING TO THE EAST 5 TO
                    10 MPH.
MIXING TEMP 1700FT..53.
SMOKE DISPERSAL.....POOR TO POOR (1300-2700 KNOT-FT).

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........16  20  24  28  32  36  40  45  51  56  61  67
WEATHER COV.....PTY
WEATHER TYPE....FST
TEMP............37  40  44  48  50  51  51  51  51  51  51  50
RH..............70  62  55  47  44  44  44  44  44  44  44  46
20 FT WIND DIR..140 120 080 060 050 040 030 040 040 050 050 060
20 FT WIND SPD..1   2   2   2   3   5   5   6   6   7   7   7
20 FT WIND GUST.            5   5       10  10  15  15  15  15
MIX HGT (KFT)...0.3 0.4 0.5 0.6 0.6 0.6 0.5 0.5 0.4 0.3 0.3 0.3
TRANSP WIND DIR.300 290 270 260 250 240 230 200 130 100 100 100
TRANSP WIND SPD.6   5   3   3   3   3   3   3   5   6   8   10
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
VRATE KT-FT/10001   2   2   2   2   2   2   1   2   2   2   3

$$
FORECASTER...FRIEDLEIN
REQUESTED BY...NEAL MULCONREY
TYPE OF REQUEST...PRESCRIBED
.TAG 20150423.MARWU.01/LOT


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