FNUS73 KAPX 111336 FWSAPX SPOT FORECAST FOR OHS KNUTH BURN...USDA FOREST SERVICE NATIONAL WEATHER SERVICE GAYLORD MI 936 AM EDT SAT APR 11 2009 FORECAST IS BASED ON IGNITION TIME OF 1630 EDT ON APRIL 11. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...STRONG HIGH PRESSURE OVER NORTHERN ONTARIO WILL DRIFT SOUTHEAST TODAY. THIS WILL PROVIDE LIGHT TO MODERATE NORTH BREEZES ACROSS THE REGION...AND A CONTINUED FEED OF COOL AND DRY AIR. HOWEVER...SOME LAKE AIRMASS MODIFICATION AND UPSLOPE COMPONENT IS EXPECTED AT THE FIRE SITE. THIS SUGGESTS MORE OF A NORTH-NORTHEAST WIND DIRECTION...AND SLIGHTLY HIGHER RH VALUES THAN EXPERIENCED ACROSS THE INTERIOR REGIONS. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). TEMPERATURE.........39 AT IGNITION...MAX 40. RH..................40 PERCENT AT IGNITION...MIN 40 PERCENT. WIND (20 FT)........WINDS NORTH AT 13 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING NORTH 5 TO 13 MPH WITH GUSTS TO AROUND 25 MPH IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....NORTH 15 TO 18 MPH. MIXING HEIGHT.......1000 FT AGL INCREASING TO 7400 FT AGL AT IGNITION...OTHERWISE 6600-7400 FT AGL. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 5. SMOKE DISPERSAL.....EXCELLENT (1400) AT IGNITION. MAX...EXCELLENT (1400). TIME (EDT) 4 PM SKY (%).........10 WEATHER COV..... WEATHER TYPE....NONE TEMP............39 RH..............40 20 FT WIND......N 12 20 FT WIND GUST.25 HAINES INDEX....4 SMOKE DISP......1400 .TONIGHT... SKY/WEATHER.........CLEAR (0-10 PERCENT). TEMPERATURE.........MIN 18. RH..................MAX 88 PERCENT. WIND (20 FT)........NORTH WINDS 5 TO 12 MPH WITH GUSTS TO AROUND 25 MPH IN THE EVENING BECOMING LIGHT. TRANSPORT WINDS.....NORTH 13 TO 20 MPH. HAINES INDEX........MIN 4. SMOKE DISPERSAL.....MIN POOR(100). TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........5 0 0 0 0 0 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............38 32 27 24 22 20 RH..............42 53 65 74 77 84 20 FT WIND......N 11 N 7 N 6 N 4 N 4 N 4 20 FT WIND GUST.25 20 15 10 10 10 HAINES INDEX....4 4 5 5 5 5 SMOKE DISP......1400 1100 400 100 200 200 .SUNDAY... SKY/WEATHER.........SUNNY (0-5 PERCENT). TEMPERATURE.........MAX 42. RH..................MIN 26 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 6 MPH IN THE MORNING...THEN SHIFTING TO THE EAST 8 TO 10 MPH IN THE AFTERNOON. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........0 0 0 0 0 0 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............19 21 30 36 40 40 RH..............88 81 51 35 28 27 20 FT WIND......N 4 N 5 N 5 NE 6 E 8 E 9 20 FT WIND GUST.10 10 10 15 15 20 $$ FORECASTER...MIKE BOGUTH REQUESTED BY...JOE ALYEA TYPE OF REQUEST...PRESCRIBED .TAG 20090411.OHSKN.02/APX