FNUS73 KLOT 091344 FWSLOT SPOT FORECAST FOR NELSON HOUSE PILES...INDIANA DUNES NATIONAL LAKESHORE NATIONAL WEATHER SERVICE CHICAGO IL 844 AM CDT THU JUL 9 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON JULY 09. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A WEAK TROUGH OF LOW PRESSURE WILL MOVE THROUGH THE REGION THIS MORNING WITH A FEW SCATTERED LIGHT RAIN SHOWERS POSSIBLE. TEMPERATURES WILL RISE THIS MORNING WITH FULL MIXING EXPECTING TO TAKE PLACE AROUND 11 AM CDT. MID LEVEL CLOUDS ARE EXPECTED TO CLEAR OUT THIS AFTERNOON LEAVING JUST UPPER LEVEL CLOUDS ACROSS THE REGION. WINDS WILL REMAIN ON THE LIGHT SIDE WITH HIGH PRESSURE SETTLING IN ACROSS THE GREAT LAKES. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. TEMPERATURE.........74 AT IGNITION...MAX 80. RH..................66 PERCENT AT IGNITION...MIN 59 PERCENT. WIND (20 FT)........WINDS SOUTHEAST AT 5 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH LATE IN THE MORNING...THEN BECOMING LIGHT BECOMING SOUTHEAST AROUND 5 MPH LATE IN THE AFTERNOON. CHANCE OF PCPN......10 PERCENT. MIXING HEIGHT.......600 FT AGL INCREASING TO 3200 FT AGL AT IGNITION...OTHERWISE INCREASING TO 4600 FT AGL EARLY IN THE AFTERNOON DECREASING TO 1600 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 8 TO 15 MPH. SMOKE DISPERSAL.....FAIR /41500 KNOT-FT/ AT IGNITION. MAX...FAIR /47300 KNOT-FT/. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........84 83 81 80 72 64 56 52 49 WEATHER COV..... WEATHER TYPE.... TEMP............74 76 77 79 79 79 80 79 78 RH..............66 64 62 61 61 61 59 59 61 20 FT WIND DIR..130 140 180 190 160 090 060 080 140 20 FT WIND SPD..4 4 3 2 2 2 3 3 4 20 FT WIND GUST.5 10 10 10 15 15 15 15 15 MIX HGT (KFT)...3.2 3.8 4.3 4.5 4.6 4.4 3.8 2.8 1.6 TRANSP WIND DIR.130 130 130 130 120 110 100 120 140 TRANSP WIND SPD.15 14 12 10 10 10 12 12 12 CWR.............10 10 10 10 10 10 10 10 10 VRATE KT-FT/100042 46 47 46 46 43 38 28 17 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. TEMPERATURE.........MIN 65. RH..................MAX 90 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF PCPN......20 PERCENT. MIXING HEIGHT.......700 FT AGL DECREASING TO 300 FT AGL EARLY IN THE EVENING...THEN DECREASING TO 200 FT AGL EARLY IN THE EVENING INCREASING TO 300 FT AGL LATE IN THE EVENING DECREASING TO 200 FT AGL INCREASING TO 300 FT AGL AFTER MIDNIGHT DECREASING TO 200 FT AGL. TRANSPORT WINDS.....SOUTHEAST 12 TO 15 MPH. SMOKE DISPERSAL.....POOR (2500-7500 KNOT-FT). TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM SKY (%).........45 46 48 49 50 51 53 54 55 56 58 59 WEATHER COV..... SCH SCH SCH SCH SCH SCH WEATHER TYPE.... TSM TSM TSM TSM TSM TSM TEMP............77 75 72 70 69 68 67 67 67 66 66 66 RH..............62 64 69 73 76 79 82 83 85 87 89 90 20 FT WIND DIR..170 170 170 170 160 160 160 150 150 150 150 160 20 FT WIND SPD..4 5 5 5 5 5 5 5 5 5 5 5 20 FT WIND GUST.15 15 15 15 15 15 15 15 15 15 15 15 MIX HGT (KFT)...0.7 0.3 0.2 0.3 0.2 0.2 0.3 0.3 0.3 0.3 0.2 0.2 TRANSP WIND DIR.160 160 160 160 160 150 150 150 150 150 150 160 TRANSP WIND SPD.12 13 13 14 14 13 13 13 13 13 14 15 CWR.............10 10 10 10 10 10 20 20 20 20 20 20 VRATE KT-FT/10008 4 3 3 3 3 3 3 3 3 3 3 .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. TEMPERATURE.........MAX 82. RH..................MIN 60 PERCENT. WIND (20 FT)........SOUTH WINDS 6 TO 9 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. CHANCE OF PCPN......30 PERCENT. MIXING HEIGHT.......300 FT AGL INCREASING TO 500 FT AGL IN THE MORNING...THEN INCREASING TO 800 FT AGL LATE IN THE MORNING INCREASING TO 1300 FT AGL LATE IN THE MORNING INCREASING TO 2000 FT AGL INCREASING TO 2600 FT AGL EARLY IN THE AFTERNOON INCREASING TO 3200 FT AGL INCREASING TO 3700 FT AGL INCREASING TO 3800 FT AGL DECREASING TO 3300 FT AGL LATE IN THE AFTERNOON DECREASING TO 2500 FT AGL. TRANSPORT WINDS.....SOUTH 16 TO 23 MPH. SMOKE DISPERSAL.....POOR TO GOOD (3600-65700 KNOT-FT). TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........60 62 65 67 69 72 74 74 75 75 76 76 WEATHER COV.....SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............67 70 74 76 78 80 81 81 82 82 82 80 RH..............89 79 71 67 64 62 60 62 61 63 65 69 20 FT WIND DIR..160 160 170 170 170 180 180 180 180 190 190 190 20 FT WIND SPD..5 6 6 6 7 7 7 7 6 6 6 5 20 FT WIND GUST.15 15 15 15 15 15 15 15 15 15 15 10 MIX HGT (KFT)...0.3 0.3 0.5 0.8 1.3 2.0 2.6 3.2 3.7 3.8 3.3 2.5 TRANSP WIND DIR.160 160 170 180 180 200 210 210 210 220 210 190 TRANSP WIND SPD.16 17 18 18 21 22 23 22 20 18 17 16 CWR.............20 20 20 20 20 20 40 40 40 40 40 40 VRATE KT-FT/10004 4 7 13 26 42 55 63 66 63 52 37 $$ FORECASTER...HALBACH REQUESTED BY...NATE ORSBURN TYPE OF REQUEST...PRESCRIBED .TAG 20090709.NELSO.02/LOT