FNUS73 KLOT 291329
FWSLOT

SPOT FORECAST FOR CALUMET DUNE...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE CHICAGO IL
829 AM CDT THU MAR 29 2012

FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON MARCH 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A RIDGE OF HIGH PRESSURE WILL MOVE ACROSS THE WESTERN
GREAT LAKES TODAY...BRINGING COOL NORTHEAST FLOW OFF OF LAKE MICHIGAN.
WINDS WILL TURN MORE EASTERLY THIS AFTERNOON AS THE HIGH BUILDS EASTWARD.
AN AREA OF LOW PRESSURE OVER COLORADO THIS MORNING WILL MOVE EAST TODAY
AND TONIGHT...REACHING NORTHERN ILLINOIS BY FRIDAY MORNING. SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO SPREAD ACROSS THE AREA LATE THIS
EVENING AND OVERNIGHT. SOME OF THESE STORMS MAY PRODUCE HEAVY RAIN WITH
LOCALIZED ONE INCH AMOUNTS POSSIBLE...ESPECIALLY NORTH OF INTERSTATE 80.
LOW CLOUDS AND PERHAPS FOG WILL LINGER FRIDAY MORNING BUT CLEARING IS
EXPECTED FRIDAY AFTERNOON.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
TEMPERATURE.........45 AT IGNITION...MAX 48.
RH..................62 PERCENT AT IGNITION...MIN 56 PERCENT.
WIND (20 FT)........WINDS NORTHEAST AT 10 MPH AT
                    IGNITION...OTHERWISE NORTHEAST WINDS 7 TO 10
                    MPH.
MIXING HEIGHT.......600-1000 FT AGL INCREASING TO 2000 FT AGL AT
                    IGNITION...OTHERWISE 1600-2000 FT AGL IN THE
                    MORNING...THEN INCREASING TO 2000 FT AGL AT
                    IGNITION...OTHERWISE 2000-2200 FT AGL IN THE
                    LATE MORNING AND AFTERNOON DECREASING TO 1500
                    FT AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 12 TO 17 MPH.
SMOKE DISPERSAL.....POOR /30400 KNOT-FT/ AT IGNITION. MAX...POOR
                    /30400 KNOT-FT/.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........23  23  24  25  28  32  35  38  42
WEATHER COV.....
WEATHER TYPE....
TEMP............44  45  46  47  48  48  48  48  47
RH..............62  60  60  58  56  58  58  60  65
20FT WIND DIR...040 040 030 030 020 020 010 020 030
20FT SPEED(MPH).8   7   7   6   6   6   7   7   7
20FT SPEED(KT)..7   6   6   6   6   6   6   6   6
20FT GUST(MPH)..17  17  16  15  14  15  16  16  16
20FT GUST(KT)...15  15  14  13  12  13  14  14  14
MIX HGT (KFT)...2.0 2.2 2.2 2.2 2.2 2.1 2.0 1.8 1.5
TRANSP WIND DIR.040 040 040 040 040 030 030 040 040
TRANSP WIND SPD.17  16  13  12  12  13  14  14  15
VRATE KT-FT/100030  29  26  22  22  23  24  22  20

$$
FORECASTER...KREIN
REQUESTED BY...MARY ELLEN WHITENACK
TYPE OF REQUEST...PRESCRIBED
.TAG 20120329.CALUM.01/LOT