FNUS73 KBIS 191521 FWSBIS SPOT FORECAST FOR WILLIAMS BEACHES...THE NATURE CONSERVANCY NATIONAL WEATHER SERVICE BISMARCK ND 1021 AM CDT MON SEP 19 2011 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON SEPTEMBER 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A RIDGE OF HIGH PRESSURE EXTENDS FROM THE CENTRAL PLAINS TO NEAR LAKE WINNIPEG WITH A DRY SOUTHWEST FLOW OVER CENTRAL NORTH DAKOTA. STRONG LOW PRESSURE WILL TRACK FROM WEST TO EAST FROM EASTERN MONTANA THROUGH NORTH DAKOTA LATER TODAY AND THROUGH TONIGHT. WINDS WILL SHIFT TO WESTERLY BEHIND THE LOW AFTER MIDNIGHT NEAR THE BURN AREA...THEN TO NORTHWEST AROUND DAYBREAK AND BECOME STRONG. A HIGH WIND WATCH IS IN EFFECT FOR WESTERN AND CENTRAL NORTH DAKOTA LATE TONIGHT INTO TUESDAY. .TODAY... SKY/WEATHER.........PARTLY SUNNY. TEMPERATURE.........64 AT IGNITION...MAX 70. RH..................46 PERCENT AT IGNITION...MIN 39 PERCENT. WIND (20 FT)........WINDS SOUTHWEST AT 15 MPH AT IGNITION...OTHERWISE SOUTHWEST WINDS AROUND 10 MPH BECOMING 10 TO 15 MPH IN THE LATE MORNING AND AFTERNOON. HAINES INDEX........6 HIGH AT IGNITION...MAX 6. SMOKE DISPERSAL.....VERY GOOD. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........33 33 33 59 59 59 59 59 59 WEATHER COV..... WEATHER TYPE.... TEMP............50 56 61 64 67 69 70 70 69 RH..............68 57 50 46 42 40 39 41 42 20 FT WIND DIR..SW SW SW SW SW SW W W W 20 FT WIND SPD..17 17 17 17 17 17 17 17 17 20 FT WIND GUST.20 20 20 25 25 25 25 25 25 HAINES INDEX....6 6 6 6 6 6 6 6 6 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS IN THE EVENING. ISOLATED THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS LIKELY AFTER MIDNIGHT. TEMPERATURE.........MIN 48. RH..................MAX 83 PERCENT. WIND (20 FT)........WINDY. WEST WINDS 5 TO 10 MPH INCREASING TO NORTHWEST AROUND 30 MPH. SMOKE DISPERSAL.....POOR. TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM SKY (%).........75 75 75 75 75 75 94 94 94 94 94 94 WEATHER COV.....DEF DEF DEF DEF DEF DEF LKY LKY LKY LKY LKY LKY WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW TEMP............65 60 58 56 55 53 52 52 51 50 49 49 RH..............50 60 64 69 72 77 80 80 80 83 83 80 20 FT WIND DIR..W W W W W W W W W NW NW NW 20 FT WIND SPD..11 11 11 11 11 11 22 22 22 33 33 33 20 FT WIND GUST.20 20 20 20 20 20 45 45 45 45 45 45 HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 5 .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY. WIDESPREAD RAIN SHOWERS IN THE MORNING...THEN NUMEROUS RAIN SHOWERS IN THE AFTERNOON. TEMPERATURE.........MAX 56. RH..................MIN 62 PERCENT. WIND (20 FT)........VERY WINDY. NORTHWEST WINDS 35 TO 40 MPH DECREASING TO AROUND 30 MPH LATE IN THE AFTERNOON. HAINES INDEX........3 VERY LOW. SMOKE DISPERSAL.....EXCELLENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........96 96 96 96 96 96 71 71 71 71 71 71 WEATHER COV.....WID WID WID WID WID WID NUM NUM NUM NUM NUM NUM WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW TEMP............48 48 50 51 53 54 55 55 56 56 56 55 RH..............83 83 77 74 69 66 66 66 62 62 62 64 20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW 20 FT WIND SPD..44 44 44 44 44 44 39 39 39 33 33 33 20 FT WIND GUST.55 55 55 55 55 55 45 45 45 45 45 45 HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3 $$ FORECASTER...HEINERT REQUESTED BY...CHRIS GORDON TYPE OF REQUEST...PRESCRIBED .TAG 20110919.WILLI.01/BIS