FNUS74 KSHV 210514 FWSSHV Spot Forecast for Nacogdoches 3739...Texas A&M Forest Service National Weather Service Shreveport LA 1214 AM CDT Tue Apr 21 2026 Forecast is based on forecast start time of 0100 CDT on April 21. If conditions become unrepresentative...contact the National Weather Service. Please contact our office at (318) 631-3669 ext. 241, if you have questions or concerns with this forecast. .DISCUSSION... Generally increasing clouds, that could bring some showers toward daybreak. However, wetting rainfall will be harder to come by until midweek. Light E winds overnight with increasing RH and then veering to SE and become gusty mid to late morning. .REST OF TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of rain showers after 3 am. CWR.................10 percent increasing to 20 percent after 3 am. Temperature.........57 at forecast start...Min 55. RH..................77 percent at forecast start...Max 89 percent. Wind (20 ft)........Winds north at 0 mph at forecast start...otherwise Light winds. Mixing height.......500 ft AGL at forecast start...otherwise 400 ft AGL. Transport winds.....East 3 to 6 mph. Transport winds m/s.East 1 to 3 meters/second. LVORI...............4. Dispersion index....2. TIME (CDT) 1AM 2AM 3AM 4AM 5AM Sky (%).........59 70 72 78 86 Weather cov..... SCH SCH Weather type.... RW RW Tstm cov........ CWR.............10 10 10 20 20 Temp............57 57 57 57 57 RH..............77 80 77 77 79 20 FT wind dir..N N N E E 20 FT wind mph..0 0 0 1 1 20 FT wind gust.3 2 3 3 3 Mix hgt (kft)...0.5 0.5 0.4 0.4 0.4 Transp wind dir.E E E E E Transp wind spd.3 3 3 3 6 Trans wind dir..E E E E E Trans spd (m/s).1 1 1 1 3 Dispersion idx..2 1 1 2 2 LVORI...........4 4 4 4 4 .TODAY... Sky/weather.........Mostly cloudy (80-90 percent). Rain showers likely and slight chance of thunderstorms. CWR.................20 percent increasing to 50 percent early in the morning, then increasing to 70 percent in the late morning and early afternoon decreasing to 50 percent late in the afternoon. Temperature.........Max 67. RH..................Min 76 percent. Wind (20 ft)........Light winds becoming southeast around 5 mph. Gusty and erratic winds expected near thunderstorms late in the morning. Gusty and erratic winds expected near thunderstorms late in the afternoon. Mixing height.......2300 ft AGL. Transport winds.....Southeast 5 to 13 mph increasing to 14 to 15 mph in the afternoon. Transport winds m/s.Southeast 3 to 7 meters/second. LVORI...............4. Dispersion index....7 increasing to 18 late in the morning, then increasing to 32 early in the afternoon increasing to 39 late in the afternoon decreasing to 28. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........86 89 84 82 88 88 90 91 92 91 93 80 Weather cov.....SCH CHC CHC CHC LKY LKY LKY LKY LKY LKY CHC CHC Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........ SCH SCH SCH SCH SCH CWR.............20 50 50 50 70 70 70 70 70 70 50 50 Temp............57 57 56 58 61 63 64 65 65 65 66 65 RH..............76 79 84 86 84 78 78 77 80 80 80 83 20 FT wind dir..E E E E SE SE SE SE SE SE SE SE 20 FT wind mph..11 1 1 3 3 3 5 5 5 5 5 20 FT wind gust.3 5 5 6 8 10 12 13 13 14 14 13 Mix hgt (kft)...0.4 0.4 0.4 0.6 0.9 1.5 1.6 2.0 2.3 2.0 2.3 1.9 Transp wind dir.E E E SE SE SE SE SE S SE SE SE Transp wind spd.5 6 7 7 12 13 15 14 14 15 14 15 Trans wind dir..E E E SE SE SE SE SE S SE SE SE Trans spd (m/s).2 3 3 3 5 6 7 6 6 7 6 7 Dispersion idx..4 6 8 10 14 21 29 35 39 40 38 28 LVORI...........4 4 4 4 4 4 3 3 3 3 3 3 .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent). Chance of rain showers and slight chance of thunderstorms early in the evening, then slight chance of rain showers in the evening. Chance of rain showers and slight chance of thunderstorms after 3 am. CWR.................50 percent decreasing to 20 percent in the evening, then decreasing to 10 percent overnight increasing to 30 percent after 3 am. Temperature.........Min 56. RH..................Max 100 percent. Wind (20 ft)........Southeast winds around 5 mph early in the evening becoming light. Gusty and erratic winds expected near thunderstorms early in the evening. Gusty and erratic winds expected near thunderstorms after 3 am. Mixing height.......400 ft AGL. Transport winds.....East 7 to 10 mph. Transport winds m/s.East 3 to 4 meters/second. LVORI...............6. Dispersion index....15 decreasing to 3. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........89 80 79 73 64 58 53 54 68 71 71 69 Weather cov.....CHC SCH SCH SCH SCH SCH SCH CHC CHC Weather type....RW RW RW RW RW RW RW RW RW Tstm cov........SCH SCH SCH CWR.............50 20 20 20 20 20 20 10 10 10 30 30 Temp............65 65 62 61 61 60 60 59 59 58 59 58 RH..............80 82 90 93 90 93 96 96 96 99 96 99 20 FT wind dir..SE SE SE SE E E E E E E E E 20 FT wind mph..5 2 2 2 2 2 2 1 1 1 2 2 20 FT wind gust.12 10 8 8 7 7 7 7 7 7 7 7 Mix hgt (kft)...1.1 0.6 0.5 0.5 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 Transp wind dir.SE SE E E E E E SE E E E E Transp wind spd.10 10 8 9 7 7 8 9 8 9 8 8 Trans wind dir..SE SE E E E E E SE E E E E Trans spd (m/s).4 4 4 4 3 3 4 4 4 4 4 4 Dispersion idx..15 5 1 2 3 3 4 4 4 4 4 4 LVORI...........4 4 5 6 6 6 7 7 7 8 8 8 .WEDNESDAY... Sky/weather.........Partly sunny (60-70 percent) then becoming cloudy (85-95 percent). Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers likely and chance of thunderstorms in the afternoon. CWR.................30 percent increasing to 70 percent. Temperature.........Max 79. RH..................Min 76 percent. Wind (20 ft)........Light winds becoming southeast 5 to 6 mph in the afternoon. Gusty and erratic winds expected near thunderstorms. Mixing height.......2800 ft AGL. Transport winds.....Southeast 7 to 13 mph. Transport winds m/s.Southeast 3 to 6 meters/second. LVORI...............6. Dispersion index....10 increasing to 25 late in the morning, then increasing to 35 late in the afternoon decreasing to 26 late in the afternoon. TIME (CDT)6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........67 69 73 66 59 60 60 89 89 89 89 89 Weather cov.....CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........SCH SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CWR.............30 40 40 40 40 40 40 70 70 70 70 70 Temp............57 58 60 63 67 70 73 76 77 78 78 77 RH..............100 100 100 100 97 91 85 80 77 76 76 77 20 FT wind dir..E E E E SE SE SE SE SE SE SE SE 20 FT wind mph..2 2 2 2 3 3 3 6 6 6 5 5 20 FT wind gust.7 7 8 9 10 12 12 13 14 15 15 15 Mix hgt (kft)...0.5 0.5 0.6 0.7 1.3 1.7 2.3 2.7 2.8 2.6 2.2 1.7 Transp wind dir.SE SE SE SE SE S S S S S S S Transp wind spd.8 7 7 7 8 9 10 12 13 13 13 13 Trans wind dir..SE SE SE SE SE S S S S S S S Trans spd (m/s).4 3 3 3 4 4 4 5 6 6 6 6 Dispersion idx..6 7 8 10 14 21 29 34 37 37 33 26 LVORI...........8 8 7 6 5 4 4 3 3 3 3 3 $$ Forecaster...CHATELAIN Requested by...Dwayne Teel Type of request...WILDFIRE .TAG 2611044.0/SHV .DELDT 04/21/26 .FormatterVersion 2.0.0 .EMAIL csdispatch@tfs.tamu.edu