303 FNUS74 KLZK 231013 FWSLZK Spot Forecast for Cottonmouth Creek Rx...The Nature Conservancy National Weather Service Little Rock AR 513 AM CDT Tue Apr 23 2019 Forecast is based on ignition time of 0600 CDT on April 23. If conditions become unrepresentative...contact the National Weather Service Immediately. Please contact our office at (501) 834-0308 and ask for the fire weather forecaster if you have any questions or concerns with this forecast. .DISCUSSION... Generally light southerly surface winds will support a moist air mass with minimum RH values above 50 percent. An approaching storm system may generate widely scattered showers today, although the probability remains low and lightning is not expected at this time. .TODAY... Max temperature.....61 at ignition...Max 79. Min humidity........84 percent at ignition...Min 56 percent. Chance of pcpn......10 percent. Transport winds.....Light winds becoming south 5 to 7 mph in the late morning and afternoon. Stability class.....B. 20 Foot Winds.......Winds south at 3 mph at ignition...otherwise Light winds becoming south 5 to 7 mph in the late morning and afternoon. LVORI...............1. Sky/weather.........Mostly cloudy (65-75 percent). Dispersion..........28 increasing to 40 in the afternoon. Haines Index........4 or low potential for large plume dominated fire growth at ignition...max 5. Mixing height (MSL).Becoming 3710 ft MSL. Mixing height (AGL).Becoming 3500 ft AGL. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC MC MC MC MC MC MC MC MC MC MC Weather cov..... Weather type.... Tstm cov........ Temp............61 62 64 67 70 72 74 76 77 78 78 78 RH..............84 84 81 75 71 66 62 58 56 56 56 56 20 FT wind dir..S S S SW S S S S S S S S 20 FT wind spd..2 2 3 3 5 6 6 7 7 7 7 7 20 FT wind gust. 4 4 Transp wind dir.S SW SW SW S S SW SW SW S S S Transp wind spd.3 15 15 14 14 14 14 14 15 15 16 16 Chc of pcpn (%).10 10 10 10 10 10 10 0 0 0 0 0 .TONIGHT... Min temperature.....Min 60. Max humidity........Max 87 percent. Chance of pcpn......10 percent. Transport winds.....South 5 to 7 mph early in the evening becoming light. Stability class.....E. 20 Foot Winds.......South winds 5 to 7 mph early in the evening becoming light. LVORI...............1. Sky/weather.........Mostly cloudy (50-60 percent) then becoming partly cloudy (40-50 percent) then becoming mostly cloudy (45-55 percent) then becoming partly cloudy (45-55 percent) then becoming mostly cloudy (50-60 percent) then becoming partly cloudy (40-50 percent) then becoming mostly cloudy (55-65 percent). Dispersion..........23 early in the evening. Haines Index........3 to 5 OR or very low potential for large plume dominated fire growth to or moderate potential for large plume dominated fire growth. Mixing height (MSL).Becoming 1405 ft MSL. Mixing height (AGL).Becoming 1200 ft AGL. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......MC MC PC MC PC MC MC PC PC MC MC MC Weather cov..... Weather type.... Tstm cov........ Temp............77 75 72 70 68 67 66 65 64 64 63 63 RH..............60 64 68 73 76 78 81 84 84 84 84 84 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..7 5 5 2 2 2 2 2 2 2 2 2 20 FT wind gust. Transp wind dir.S S S S S S SW SW SW SW SW SW Transp wind spd.17 17 17 17 17 17 18 18 20 20 18 15 Chc of pcpn (%).0 10 10 10 10 10 10 10 10 10 10 10 .WEDNESDAY... Max temperature.....Max 80. Min humidity........Min 52 percent. Chance of pcpn......10 percent. Transport winds.....Light winds becoming south 5 to 6 mph in the late morning and afternoon. Stability class.....B. 20 Foot Winds.......Light winds becoming south 5 to 6 mph in the late morning and afternoon. LVORI...............1. Sky/weather.........Partly sunny (60-70 percent). Dispersion..........12 increasing to 28 in the late morning and afternoon. Haines Index........3 to 5 OR or very low potential for large plume dominated fire growth to or moderate potential for large plume dominated fire growth. Mixing height (MSL).Becoming 4081 ft MSL. Mixing height (AGL).Becoming 3900 ft AGL. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC MC MC MC MC MC MC MC MC MC MC Weather cov..... Weather type.... Tstm cov........ Temp............62 62 65 68 71 73 75 77 78 79 79 79 RH..............87 87 84 78 76 68 62 56 54 52 52 52 20 FT wind dir..S S SW SW SW SW S S S S S S 20 FT wind spd..2 2 3 3 5 6 6 5 5 6 6 6 20 FT wind gust. 4 4 Transp wind dir.SW S SW SW SW SW S S S S S S Transp wind spd.10 8 9 12 14 14 13 12 10 10 10 12 Chc of pcpn (%).10 10 10 10 10 10 10 10 10 10 10 10 $$ Forecaster...D Cooper Requested by...Burn Boss Type of request...PRESCRIBED .TAG 1906880.0/LZK .DELDT 04/23/19 .EMAIL Dylan.jacobs@tnc.org