Spot Forecast
Issued by NWS Little Rock, AR
Issued by NWS Little Rock, AR
493
FNUS74 KLZK 202232
FWSLZK
Spot Forecast for Thornburg Fire...AR Forestry
National Weather Service Little Rock AR
532 PM CDT Thu Aug 20 2026
Forecast is based on forecast start time of 1800 CDT on August 20.
If conditions become unrepresentative, contact the National Weather
Service.
Please contact our office at (501) 834-3955 and ask for the fire
weather forecaster if you have any questions or concerns with
this forecast.
...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT FRIDAY...
.DISCUSSION...
.TONIGHT...
Min temperature.....102 at forecast start...Min 74.
Max humidity........35 percent at forecast start...Max 90 percent.
Chance of pcpn......20 percent.
Stability class.....6.
LVORI...............3.
Sky/weather.........Mostly clear (20-30 percent). Slight chance of
showers and thunderstorms early in the evening.
Dispersion..........MISSING.
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
Peak Category Day...3.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MCR MCR MCR MCR MCR MCR MCR MCR MCR PC PC PC
Weather cov.....SCH SCH
Weather type....RW RW
Tstm cov........SCH SCH
Temp............102 97 93 89 84 83 81 80 79 78 76 76
RH..............35 42 48 55 65 67 72 74 77 79 85 85
20 FT wind dir..N S S SE SE SE S S S S N N
20 FT wind spd..3 3 3 3 3 3 3 3 2 2 3 2
20 FT wind gust.6 6 7 7 7 8 7 6 6 6 7 6
MixHgtAGL (kft).5.9 1.2 0.5 0.4 0.4 0.4 0.4 0.5 0.7 0.7 0.5 0.8
Category Day....3 1 1 1 1 1 1 1 1 1 1 1
Transp wind dir.NW SE S SE E SE E E E E E E
Transp wind spd.8 8 8 8 8 8 8 8 7 7 7 7
Chc of pcpn (%).20 20 10 10 0 0 10 10 10 10 10 10
.FRIDAY...
Max temperature.....Max 96.
Min humidity........Min 43 percent.
Chance of pcpn......10 percent.
Stability class.....1.
LVORI...............3 early in the morning.
Sky/weather.........Sunny (10-20 percent).
Dispersion..........MISSING.
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
Peak Category Day...3.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......PC PC PC MCR MCR MCR MCR MCR MCR CLR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Temp............75 74 76 78 82 86 89 91 93 94 95 96
RH..............87 90 87 85 74 68 61 58 51 48 45 43
20 FT wind dir..N NE N N NE NE NE NE NE NE NE NE
20 FT wind spd..2 2 2 2 2 2 2 2 2 2 2 2
20 FT wind gust.6 6 6 6 6 6 6 6 6 6 6 6
MixHgtAGL (kft).0.8 0.9 1.1 1.4 2.0 2.4 3.3 4.2 4.7 5.2 5.5 5.7
Category Day....1 1 1 1 2 2 2 2 2 3 3 3
Transp wind dir.E E NE NE N N N N N N N N
Transp wind spd.7 6 8 8 8 7 7 7 6 6 6 6
Chc of pcpn (%).10 0 0 0 0 0 0 0 0 0 0 0
.FRIDAY NIGHT...
Min temperature.....Min 73.
Max humidity........Max 87 percent.
Chance of pcpn......10 percent.
Stability class.....6.
LVORI...............4.
Sky/weather.........Mostly clear (10-20 percent) then becoming
mostly cloudy (50-60 percent) then becoming
partly cloudy (30-40 percent).
Dispersion..........MISSING.
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
Peak Category Day...3 in the evening and overnight.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MCR MCR MCR MC MC MC PC PC PC PC PC PC
Weather cov.....
Weather type....
Tstm cov........
Temp............94 92 90 85 83 82 80 79 77 77 75 75
RH..............46 51 52 61 63 65 69 69 74 74 79 79
20 FT wind dir..NE E SE E E SE SE SE SE SE S S
20 FT wind spd..2 2 2 2 2 2 2 2 1 1 1 1
20 FT wind gust.6 5 6 6 6 5 4 4 2 2 2 2
MixHgtAGL (kft).4.3 0.7 0.4 0.4 0.5 0.4 0.5 0.4 0.4 0.4 0.4 0.4
Category Day....3 1 1 1 1 1 1 1 1 M M M
Transp wind dir.N NE E SE SE SE S SE SW S S SW
Transp wind spd.7 7 6 6 7 8 7 7 5 5 6 5
Chc of pcpn (%).0 0 0 0 0 0 0 10 10 10 10 10
.SATURDAY...
Max temperature.....Max 95.
Min humidity........Min 49 percent.
Chance of pcpn......20 percent.
Stability class.....2.
LVORI...............4 early in the morning.
Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
showers through the day. Slight chance of
thunderstorms in the afternoon.
Dispersion..........MISSING.
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
Peak Category Day...MG1.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......PC PC PC PC PC PC PC PC PC PC PC PC
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH SCH SCH
Temp............75 73 75 79 83 86 89 92 93 94 94 93
RH..............79 87 87 79 70 63 59 54 52 49 49 51
20 FT wind dir..N N S S S S S S S S SE SE
20 FT wind spd..0 0 1 1 1 2 2 2 2 2 2 2
20 FT wind gust.2 2 2 4 4 4 5 5 6 6 6 6
MixHgtAGL (kft).0.4 0.4 0.5 0.9 1.8 3.1 4.6 5.8 6.5 6.6 6.0 4.4
Category Day....M M M M M M M M M M M M
Transp wind dir.S SW N NW W W W NW W W W NW
Transp wind spd.3 5 6 6 6 6 5 5 6 7 8 9
Chc of pcpn (%).20 20 20 20 20 20 20 20 20 20 20 20
$$
Forecaster...D Cavanaugh
Requested by...Anthony Brown
Type of request...WILDFIRE
.TAG 2620120.0/LZK
.DELDT 08/20/26
.FormatterVersion 2.0.0
.EMAIL anthony.brown@arkansas.gov