FNUS71 KBOX 071352 FWSBOX SPOT FORECAST FOR PILGRAM SPRINGS 3...NATIONAL PARK SERVICE NATIONAL WEATHER SERVICE TAUNTON MA 852 AM EST WED MAR 7 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON MARCH 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ONSHORE SOUTHWEST FLOW WILL INCREASE GRADUALLY THROUGH THE DAY WITH SUSTAINED WINDS AROUND 15 MPH WITH GUSTS OF 20 TO 25 MPH. RELATIVE HUMIDITIES WILL BE HIGH ALONG THE NORTHERN CAPE WITH USHERANCE OF WINDS OFF CAPE COD BAY /VALUES AROUND 60 PERCENT THROUGH THE DAY...INCREASING TO 70 TO 80 PERCENT INTO THE LATE AFTERNOON HOURS/. YET WHILE TRANSPORT WINDS WILL BE GOOD...MIXING HEIGHTS WILL BE LIMITED RESULTING IN POOR TO FAIR VENTILATION RATES. THE EXPECTATION IS FOR ANY SMOKE FROM FIRES TO SPREAD NORTHEASTERLY WITH THE PREVAILING WIND...BUT THE PLUME MAY REMAIN CLOSE TO THE SURFACE SHOULD THE GROUND NOT WARM ABOVE 40 DEGREES. IF SURFACE TEMPS ARE ALLOWED TO WARM ABOVE 40 DEGREES THE ANTICIPATION IS FOR LOW- LEVELS TO BECOME MIXED UP TO 2500 FT AGL. OUTLOOK /FRIDAY THROUGH TUESDAY/... A COLD FRONT WILL MOVE THROUGH NEW ENGLAND THURSDAY NIGHT INTO EARLY FRIDAY. HIGH PRESSURE THEN BRINGS COLDER AND DRIER AIR FOR SATURDAY. MILDER TEMPERATURES RETURN FOR SUNDAY AND EARLY NEXT WEEK. .TODAY... SKY/WEATHER.........SUNNY. TEMPERATURE.........46 AT IGNITION...MAX 48. RH..................62 PERCENT AT IGNITION...MIN 58 PERCENT. WIND (20 FT)........WINDS SOUTHWEST AT 14 MPH AT IGNITION... OTHERWISE SOUTHWEST WINDS 15 MPH. CWR.................0 PERCENT. MIXING HEIGHT.......500 FT AGL AT IGNITION...MAX 2000-2500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 22 TO 31 MPH. SMOKE DISPERSAL.....POOR /11200 KNOT-FT/ AT IGNITION. MAX...FAIR /15300 KNOT-FT/. TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).............3 2 0 0 0 0 1 WEATHER COV......... WEATHER TYPE........ TSTM COV............ TEMP................46 46 47 47 47 46 45 RH..................62 61 58 60 61 65 70 20 FT WIND DIR......SW SW SW SW SW SW SW 20 FT WIND SPD......11 11 12 12 12 12 12 20 FT WIND GUST.....20 20 20 20 20 20 20 MIX HGT (KFT).......0.4 0.3 0.1 0.1 0.1 0.1 0.1 TRANSP WIND DIR.....SW SW SW SW SW SW SW TRANSP WIND SPD.....29 30 31 31 31 31 31 LVORI...............2 1 1 3 3 3 3 ADI.................26 33 34 34 34 34 34 CWR.................0 0 0 0 0 0 0 VRATE KT-FT/1000....11 7 2 2 2 2 2 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. TEMPERATURE.........MIN 43. RH..................MAX 89 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 16 TO 18 MPH. CWR.................0 PERCENT. MIXING HEIGHT.......100 FT AGL. TRANSPORT WINDS.....SOUTHWEST 31 TO 33 MPH. SMOKE DISPERSAL.....POOR TO POOR (1800-1900 KNOT-FT). TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).............2 3 6 9 13 17 20 24 26 28 30 31 WEATHER COV......... WEATHER TYPE........ TSTM COV............ TEMP................45 44 44 44 45 45 45 45 45 45 45 45 RH..................71 76 82 86 82 86 86 89 89 89 89 89 20 FT WIND DIR......SW SW SW SW SW SW SW SW SW SW SW SW 20 FT WIND SPD......13 14 14 14 14 14 14 14 14 14 14 14 20 FT WIND GUST.....20 20 20 20 20 25 25 25 25 25 25 25 MIX HGT (KFT).......0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 TRANSP WIND DIR.....SW SW SW SW SW SW SW SW SW SW SW SW TRANSP WIND SPD.....31 32 32 32 32 32 32 33 33 33 33 33 LVORI...............3 3 3 4 3 4 4 4 4 4 4 4 ADI.................34 35 35 35 35 29 29 30 30 30 30 30 CWR.................0 0 0 0 0 0 0 0 0 0 0 0 VRATE KT-FT/1000....2 2 2 2 2 2 2 2 2 2 2 2 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. TEMPERATURE.........MAX 56. RH..................MIN 77 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 18 TO 23 MPH. CWR.................10 PERCENT. MIXING HEIGHT.......100-400 FT AGL. TRANSPORT WINDS.....SOUTHWEST 33 TO 38 MPH. SMOKE DISPERSAL.....POOR TO FAIR (1900-13700 KNOT-FT). TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).............33 35 36 36 37 38 39 39 42 45 47 50 WEATHER COV......... PTY PTY WEATHER TYPE........ FOG FOG TSTM COV............ TEMP................46 46 46 47 47 49 50 52 53 53 53 52 RH..................86 86 86 83 86 80 80 77 77 77 77 80 20 FT WIND DIR......SW SW SW SW SW SW SW SW SW SW SW SW 20 FT WIND SPD......14 14 15 16 17 18 18 18 18 18 18 18 20 FT WIND GUST.....25 25 25 25 30 30 30 30 30 30 30 30 MIX HGT (KFT).......0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.3 0.4 0.4 0.3 TRANSP WIND DIR.....SW SW SW SW SW SW SW SW SW SW SW SW TRANSP WIND SPD.....33 33 35 35 36 37 37 38 38 38 38 38 LVORI...............4 4 4 4 4 3 3 3 3 3 3 3 ADI.................30 30 31 31 32 33 40 42 42 42 42 42 CWR.................0 0 0 0 0 0 0 0 10 10 10 10 VRATE KT-FT/1000....2 2 2 2 2 4 6 8 10 12 14 11 $$ FORECASTER...SIPPRELL REQUESTED BY...JUSTIN DEFOREST TYPE OF REQUEST...PRESCRIBED .TAG 20120307.PILGR.01/BOX