Spot Forecast
Issued by NWS Wakefield, VA

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739 FNUS71 KAKQ 010845 FWSAKQ Spot Forecast for Nassawango...The Nature Conservancy National Weather Service Wakefield VA 445 AM EDT Wed May 1 2024 Forecast is based on ignition time of 0800 EDT on May 01. If conditions become unrepresentative...contact the National Weather Service at 757-899-5734. .DISCUSSION... A weak front drops through the area today with morning clouds giving way to a mostly sunny sky by this afternoon. The biggest challenge today will be a changing wind direction. Winds start off primarily out of the W to NW during the morning hours, becoming E and then SE during the mid afternoon hours (approx 3-4 PM). The onshore wind will keep RH values at our above 50% for much of today. .REST OF TODAY... Sky/weather.........Mostly cloudy (65-75 percent) then becoming mostly sunny (35-45 percent). Chance of pcpn......10 percent. Max temperature.....Around 79. Min humidity........50 percent. Wind (20 ft)........North winds 5 to 6 mph shifting to the southeast 6 to 7 mph late in the afternoon. Mixing height.......4500 ft AGL. Transport winds.....North 3 to 9 mph shifting to the southwest 6 to 8 mph late in the afternoon. Smoke dispersal.....Poor (8600 knot-ft) early in the morning increasing to fair (22900 knot-ft) in the afternoon. LVORI...............3. ADI.................13 to 32. Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........82 71 60 49 49 49 49 42 34 26 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 10 10 10 10 10 10 10 10 0 Temp............66 69 71 74 76 77 78 77 77 76 RH..............81 73 68 62 56 54 50 52 52 54 20 FT wind dir..NW NW NW N N N NE NE E SE 20 FT wind spd..5 5 6 6 6 6 6 6 6 7 20 FT wind gust.9 9 11 11 11 11 11 11 11 12 Mix hgt (kft)...1.2 1.9 2.6 3.3 3.7 4.1 4.5 4.0 3.4 2.9 Transp wind dir.NW N N N N N NW NW SW S Transp wind spd.8 9 8 8 6 5 3 5 6 8 LVORI...........4 3 3 1 2 2 2 2 2 2 ADI.............13 20 25 32 28 22 18 21 26 28 Haines index....3 3 3 3 3 4 4 4 3 3 Vrate kt-ft/1K..9 14 19 23 20 16 14 15 19 19 Ventrate Cat....PR PR PR PR PR PR PR PR PR PR .TONIGHT... Sky/weather.........Partly cloudy (25-35 percent). Patchy fog after 3 am. Chance of pcpn......0 percent. Min temperature.....Around 55. Max humidity........100 percent. Wind (20 ft)........Southeast winds 5 to 6 mph in the evening becoming light. Mixing height.......400 ft AGL. Transport winds.....South 3 to 8 mph. Smoke dispersal.....Fair (14400 knot-ft) early in the evening decreasing to poor (1200 knot-ft) late in the night. LVORI...............6. ADI.................2 to 21. Haines Index........3 to 5 or very low to moderate potential for large plume dominated fire growth. TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........23 19 16 16 16 16 18 19 20 27 33 39 Weather cov..... PTY PTY Weather type.... FOG FOG Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............73 69 65 63 61 60 58 58 57 57 57 56 RH..............59 66 75 81 84 87 93 93 96 96 96 100 20 FT wind dir..SE SE SE SE SE S S SE SE S S S 20 FT wind spd..6 6 6 5 5 4 3 3 2 2 2 2 20 FT wind gust.11 9 9 8 8 6 5 5 3 3 3 3 Mix hgt (kft)...2.1 1.3 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Transp wind dir.S S S S S S S S S S S S Transp wind spd.8 7 7 6 6 5 5 3 3 3 3 3 LVORI...........2 3 4 5 5 6 7 7 8 8 8 10 ADI.............21 3 3 3 2 2 2 2 2 2 2 2 Haines index....3 3 3 3 3 3 4 4 5 5 5 5 Vrate kt-ft/1K..14 9 3 3 2 2 2 1 1 1 1 1 Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR .THURSDAY... Sky/weather.........Mostly sunny (20-30 percent). Patchy fog early in the morning. Chance of pcpn......0 percent. Max temperature.....Around 85. Min humidity........38 percent. Wind (20 ft)........Light winds becoming southwest 5 to 9 mph in the late morning and afternoon. Mixing height.......5200 ft AGL. Transport winds.....South 2 to 10 mph shifting to the southwest 13 to 15 mph late in the morning. Smoke dispersal.....Poor (1200 knot-ft) early in the morning increasing to excellent (62000 knot-ft) in the afternoon. LVORI...............6. ADI.................1 early in the morning increasing to 83 in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky (%).........40 42 25 15 11 9 Weather cov.....PATCHY Weather type....FOG NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 Temp............57 62 72 80 84 84 RH..............100 90 64 49 41 40 20 ft wind......S 2 S 3 S 5 SW 7 SW 9 SW 8 20 ft wind gust.5 7 9 12 14 14 Mix hgt (ft)....500 600 2100 3600 5200 4500 Transport wind..S 3 S 3 SW 10 SW 14 W 14 W 15 LVORI...........10 6 2 1 1 1 ADI.............1 3 27 61 82 82 Haines index....5 5 5 5 5 5 Vrate kt-ft/1K..1 2 18 44 62 61 Ventrate Cat....POOR POOR POOR FAIR GOOD GOOD $$ Forecaster...BUTNER Requested by...Gabriel Devin Cahalan Type of request...PRESCRIBED .TAG 2412876.0/AKQ .DELDT 05/01/24 .FormatterVersion 2.0.0 .EMAIL gcahalan@tnc.org