FNUS71 KAKQ 211020 FWSAKQ SPOT FORECAST FOR ANTIOCH PINES 1 AND 3...DCR NATIONAL WEATHER SERVICE WAKEFIELD VA 620 AM EDT THU MAR 21 2013 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...LOW RELATIVE HUMIDITY VALUES OVER THE PIEDMONT THURSDAY AND REGION-WIDE FRIDAY... A STRONG COLD FRONT WILL SWING ACROSS THE AREA THIS MORNING. THIS WILL BRING A CHANCE OF RAIN AND SNOW SHOWERS EAST OF INTERSTATE 95 THIS MORNING...PUSHING TOWARDS THE NORTHERN NECK AND EASTERN SHORE BY MID TO LATE MORNING. COOL HIGH PRESSURE BUILDS IN FROM THE WEST FOR THURSDAY AFTERNOON THROUGH FRIDAY, WITH DRY AND BREEZY CONDITIONS RETURNING. MINIMUM RELATIVE HUMIDITY VALUES SHOULD FALL TO AROUND 25 PERCENT OVER THE PIEDMONT THURSDAY...AND 20 TO 25 PERCENT WEST OF THE CHESAPEAKE BAY FRIDAY. THE NEXT SYSTEM WILL AFFECT THE AREA WITH INCREASED PRECIPITATION CHANCES SUNDAY AND MONDAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). A SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE MORNING. A CHANCE OF SNOW SHOWERS IN THE MORNING. MAX TEMPERATURE.....AROUND 42. MIN HUMIDITY........32 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 6 TO 14 MPH. GUSTS UP TO 25 MPH EARLY IN THE MORNING. CHANCE OF PCPN......40 PERCENT. MIXING HEIGHT.......1100-2900 FT AGL...INCREASING TO 5800 FT AGL. TRANSPORT WINDS.....NORTHWEST 13 TO 22 MPH...INCREASING TO 23 TO 24 MPH LATE. HAINES INDEX........2 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).............88 74 74 74 70 70 70 WEATHER COV.........CHC WEATHER TYPE........SW TSTM COV............ TEMP................35 36 38 38 39 39 39 RH..................64 54 46 42 39 35 34 CHC OF PCPN (%).....20 10 10 10 10 10 10 MIX HGT (KFT).......2.9 3.3 3.6 4.0 4.6 5.2 5.8 20 FT WIND DIR......N NW NW NW NW NW NW 20 FT WIND SPD......12 12 13 13 13 14 14 20 FT WIND GUST.....20 20 25 25 25 25 25 TRANSP WIND DIR.....NW NW NW NW NW NW NW TRANSP WIND SPD.....20 20 20 21 22 23 24 VRATE KT-FT/1000....50 56 63 72 87 103 121 LVORI...............1 1 1 1 1 1 1 ADI.................47 50 53 57 64 71 78 HAINES INDEX........3 3 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT)...THEN BECOMING PARTLY CLOUDY (30-40 PERCENT). MIN TEMPERATURE.....AROUND 26. MAX HUMIDITY........50 PERCENT. WIND (20FT/2MIN)....WEST WINDS 5 TO 13 MPH. GUSTS UP TO 25 MPH EARLY IN THE EVENING. CHANCE OF PCPN......10 PERCENT. MIXING HEIGHT.......2500-4100 FT AGL...DECREASING TO 700-1000 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....NORTHWEST 17 TO 26 MPH...DECREASING TO 13 TO 15 MPH AFTER MIDNIGHT. HAINES INDEX........3 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).............57 57 57 43 43 43 31 31 31 24 24 24 WEATHER COV......... WEATHER TYPE........ TSTM COV............ TEMP................38 36 35 33 32 30 30 29 28 28 27 27 RH..................34 35 35 36 37 41 41 40 42 44 46 48 CHC OF PCPN (%).....10 10 10 10 10 10 10 10 10 10 10 10 MIX HGT (KFT).......4.1 2.5 0.9 0.8 0.8 0.7 0.8 0.9 1.0 1.0 0.9 0.9 20 FT WIND DIR......NW NW NW NW NW NW NW NW NW NW W W 20 FT WIND SPD......13 13 12 10 9 8 8 7 7 6 6 5 20 FT WIND GUST.....25 25 20 20 15 15 15 15 15 10 10 10 TRANSP WIND DIR.....NW NW NW NW NW NW NW NW NW NW NW NW TRANSP WIND SPD.....25 26 26 26 25 24 22 17 15 13 13 13 VRATE KT-FT/1000....90 56 20 18 17 15 15 14 13 11 10 10 LVORI...............1 1 1 2 2 2 2 2 2 2 2 2 ADI.................70 56 30 29 23 16 14 12 10 6 6 6 HAINES INDEX........4 4 4 4 4 4 4 4 4 4 3 3 .FRIDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 50. MIN HUMIDITY........27 PERCENT. WIND (20FT/2MIN)....WEST WINDS 5 TO 13 MPH. GUSTS UP TO 25 MPH LATE IN THE MORNING. CHANCE OF PCPN......10 PERCENT. MIXING HEIGHT.......800-2500 FT AGL...INCREASING TO 5400-5700 FT AGL. TRANSPORT WINDS.....WEST 14 TO 18 MPH. HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).............22 22 22 20 20 20 20 20 20 19 19 19 WEATHER COV......... WEATHER TYPE........ TSTM COV............ TEMP................27 27 27 30 36 41 44 46 47 48 49 49 RH..................48 50 50 49 40 34 35 32 31 30 29 33 CHC OF PCPN (%).....10 10 0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT).......0.8 0.8 0.8 1.6 2.5 3.4 4.0 4.6 5.2 5.4 5.6 5.7 20 FT WIND DIR......W W W W W W W W W W W W 20 FT WIND SPD......5 6 6 8 9 10 10 12 12 12 13 13 20 FT WIND GUST.....10 10 10 15 15 20 20 20 20 20 25 25 TRANSP WIND DIR.....NW NW NW NW NW W W W W W W W TRANSP WIND SPD.....14 16 18 18 18 18 18 18 18 18 17 16 VRATE KT-FT/1000....11 12 12 27 40 53 64 74 83 85 85 80 LVORI...............2 2 2 2 1 1 1 1 1 1 1 1 ADI.................6 7 8 13 53 46 51 55 57 57 56 52 HAINES INDEX........3 4 4 4 4 4 4 5 5 5 4 4 FORECASTER...MONTEFUSCO REQUESTED BY...WILSON TYPE OF REQUEST...PRESCRIBED .TAG 20130321.ANTIO.01/AKQ