Spot Forecast
Issued by NWS Shreveport, LA
Issued by NWS Shreveport, LA
969
FNUS74 KSHV 210025
FWSSHV
Spot Forecast for Lawson Fire...Arkansas Forestry Division
National Weather Service Shreveport LA
725 PM CDT Thu Aug 20 2026
Forecast is based on forecast start time of 2000 CDT on August 20.
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.
...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT FRIDAY...
.DISCUSSION...
Good evening, a small lingering shower remains near the fire site,
could bring some light rain, but the overall theme is that storms
are starting to weaken. Thunderstorm chances will continue to
decrease over the next few hours. Winds will generally be light,
however, gusty and erratic winds can be possible from nearby
thunderstorms through the evening hours. Please let us know if you
need anything else.
.REST OF TONIGHT...
CWR.................40 percent decreasing to 20 percent.
Temperature.........89 at forecast start...Min 74.
RH..................57 percent at forecast start...Max 90 percent.
Wind (20 ft)........Winds south at 3 mph at forecast
start...otherwise Light winds. Gusty and
erratic winds expected near thunderstorms early
in the evening. Gusty and erratic winds
expected near thunderstorms late in the
evening.
Mixing height.......500 ft AGL at forecast start...otherwise 400 ft
AGL.
Transport winds.....Southeast 7 to 9 mph shifting to the southwest
8 to 12 mph late in the evening.
Transport winds m/s.South 4 to 5 meters/second.
LVORI...............5.
Dispersion index....4.
TIME (CDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........61 61 52 54 56 50 50 54 48 42
Weather cov.....CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW RW
Tstm cov........CHC CHC SCH SCH SCH
CWR.............40 40 30 30 30 20 20 20 20 20
Temp............89 85 82 81 80 79 79 78 76 76
RH..............57 67 74 77 77 79 79 82 87 87
20 FT wind dir..SE NE E S S SW SW W E S
20 FT wind mph..2 2 2 2 2 2 2 2 1 1
20 FT wind gust.5 8 7 6 6 6 5 5 5 5
Mix hgt (kft)...0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SE S S S S S S SW SW SW
Transp wind spd.7 9 9 12 10 12 10 10 9 8
Trans wind dir..SE S S S S S S SW SW SW
Trans spd (m/s).3 4 4 5 4 5 4 4 4 4
Dispersion idx..3 4 4 5 5 5 5 5 4 4
LVORI...........3 3 3 4 4 4 4 4 6 6
.FRIDAY...
Sky/weather.........Mostly sunny (30-40 percent). Slight chance of
showers early in the morning.
CWR.................20 percent decreasing to 10 percent.
Temperature.........Max 101.
RH..................Min 36 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 6 mph late
in the morning.
Mixing height.......6300 ft AGL.
Transport winds.....West 6 to 8 mph shifting to the northwest
around 8 mph late in the afternoon.
Transport winds m/s.West around 4 meters/second shifting to the
northwest in the afternoon.
LVORI...............4.
Dispersion index....8 increasing to 61.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40 37 31 34 32 25 25 32 32 32 32 32
Weather cov.....SCH
Weather type....RW
Tstm cov........
CWR.............20 10 10 10 10 10 10 10 10 10 10 10
Temp............76 75 79 82 89 92 96 98 100 101 100 99
RH..............87 90 82 74 59 54 46 43 38 36 37 38
20 FT wind dir..SW SE W W W W W W NW NW NW NW
20 FT wind mph..1 1 1 2 3 5 5 6 5 6 6 6
20 FT wind gust.5 5 5 6 7 6 7 7 8 8 8 7
Mix hgt (kft)...0.4 0.4 0.7 1.2 1.8 2.6 3.9 5.1 6.3 6.2 6.1 6.1
Transp wind dir.W SW W W W W W NW NW NW NW NW
Transp wind spd.8 6 8 8 8 8 8 8 8 8 8 8
Trans wind dir..W SW W W W W W NW NW NW NW NW
Trans spd (m/s).4 3 4 4 4 4 4 4 4 4 4 4
Dispersion idx..4 6 8 12 19 27 40 51 62 61 60 60
LVORI...........6 6 4 3 2 2 1 1 1 1 1 1
$$
Forecaster...THORNE
Requested by...Wesley McKinney
Type of request...WILDFIRE
.TAG 2620133.0/SHV
.DELDT 08/20/26
.FormatterVersion 2.0.0
.EMAIL wesley.mckinney@arkansas.gov