FNUS73 KDLH 111412 FWSDLH SPOT FORECAST FOR MEADOW...NPS GP NATIONAL WEATHER SERVICE DULUTH MN 912 AM CDT MON MAY 11 2009 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON MAY 11. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SMOKE DISPERSAL FORECAST WILL BE A CHALLENGE TODAY. THE DAY STARTED WITH A DRAINAGE NORTHWEST WIND...BUT WINDS HAVE STARTED TO COME AROUND TO ONSHORE PER YOUR OBSERVATION AND AN OBSERVATION NEAR LAKE SUPERIOR IN GRAND MARAIS. WINDS WILL REMAIN SOUTHERLY TODAY...ESPECIALLY CLOSE TO THE LAKE. IT LOOKS LIKE THERE WILL BE A WINDOW WHERE SMOKE DISPERSAL COULD REACH THE FAIR CATEGORY...BUT WE DON'T ENVISION SMOKE DISPERSAL REACHING MORE THAN FAIR. MIXING HEIGHTS SHOULD GET TO 1000 FEET AGL AT BEST. AS WINDS INCREASE OFF OF THE LAKE LATER THIS MORNING AND EARLY IN THE AFTERNOON...THE MARINE INVERSION SHOULD STRENGTHEN. AS A RESULT...INVERSION HEIGHTS MAY REMAIN THE SAME OR EVEN LOWER A BIT IN THE AFTERNOON. WE DON'T HAVE DIRECT MEASUREMENTS TO DETERMINE THE MIXING HEIGHT AND SMOKE DISPERSION AT THE BURNSITE. IF YOU HAVE ANY QUESTIONS...PLEASE CALL. .TODAY... SKY / WEATHER.......MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. MAX TEMPERATURE.....48-53. MIN HUMIDITY........37 PERCENT. 20-FOOT WINDS.......SOUTH WINDS 2 TO 4 MPH BECOMING SOUTH TO SOUTHWEST 6 TO 10 MPH. MIXING HEIGHT.......1000 FT AGL. TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH. SMOKE DISPERSAL.....FAIR (16600). TIME (CDT) 10 AM NOON 2 PM 4 PM 6 PM TEMP............47 51 51 50 49 RH..............40 34 34 37 37 20 FT WIND DIR..S0 S S SW S 20 FT WIND SPD..4 6 7 9 8 20 FT WIND GUST.7 9 10 16 15 .TONIGHT... SKY / WEATHER.......PARTLY CLOUDY. MIN TEMPERATURE.....35-40. MAX HUMIDITY........75 PERCENT. 20-FOOT WINDS.......SOUTH WINDS 4 TO 8 MPH BECOMING SOUTHEAST 3 TO 4 MPH AFTER MIDNIGHT. MIXING HEIGHT.......850 FT AGL. TRANSPORT WINDS.....SOUTH 10 TO 15 MPH. SMOKE DISPERSAL.....POOR (8300). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM TEMP............48 42 39 38 38 38 RH..............39 48 54 57 57 59 20 FT WIND DIR..S S S S S SE 20 FT WIND SPD..7 5 4 3 3 4 20 FT WIND GUST.9 7 5 5 .TUESDAY... SKY / WEATHER.......PARTLY SUNNY THEN BECOMING MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. CHANCE OF PRECIPITATION 40 PERCENT. MAX TEMPERATURE.....42-47. MIN HUMIDITY........64 PERCENT. 20-FOOT WINDS.......EAST WINDS 5 TO 9 MPH INCREASING TO 10 TO 11 MPH IN THE AFTERNOON. MIXING HEIGHT.......350 FT AGL. TRANSPORT WINDS.....SOUTHEAST 20 TO 25 MPH. SMOKE DISPERSAL.....POOR (5100). TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM TEMP............38 42 45 45 45 44 RH..............64 73 73 70 71 65 20 FT WIND DIR..SE SE SE E E E 20 FT WIND SPD..5 5 7 8 9 10 20 FT WIND GUST.6 7 9 14 16 17 $$ FORECASTER...DEAN M. REQUESTED BY...ERIK CARLSON TYPE OF REQUEST...PRESCRIBED .TAG 20090511.MEADO.01/DLH