FNUS74 KFWD 232353 FWSFWD Spot Forecast for JANUARY LANE GRASS FIRE...FLOWER MOUND National Weather Service Fort Worth TX 653 PM CDT Sun Aug 23 2026 Forecast is based on forecast start time of 1900 CDT on August 23. If conditions become unrepresentative...contact the National Weather Service. ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT MONDAY... .DISCUSSION... Observations near the fire show a current temperature of around 108, a humidity of 21%, and southerly winds at 12 mph gusting to 17 mph. Over the rest of the evening and night, expect temperatures to drop into the low 80s while humidity poorly recovers to around 49%. Winds will remain out of the south- southwest around 5-10 mph heading into Monday morning. Tomorrow, expect another extremely hot day with highs around 108. Humidity will bottom out around 19% in the afternoon. West-southwest winds around 10-15 mph with occasional gusts up to near 20 mph will prevail for most of the afternoon, before becoming more S-SSW around 5-10 mph later in the evening. There is a very low (10%) chance for isolated showers and storms early Tuesday morning, with any storm having a threat for gusty winds and lightning. Overnight into Tuesday, expect a low temperature in the low 80s and a poor humidity recovery to around 56%. Tuesday will again be extremely hot and dry, with a high around 107 and a humidity minimum of around 25%. .REST OF TONIGHT... Sky/weather.........Mostly clear (5-15 percent). Min temperature.....Around 82. Max humidity........49 percent. Wind (20 ft)........South winds 5 to 10 mph. Mixing height.......500 ft AGL. Transport winds.....South 10 to 15 mph. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM Sky (%).........6 9 6 10 6 8 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Temp............101 94 90 87 86 84 RH..............27 34 39 42 43 46 20 ft wind......S 8 S 8 S 9 S 8 S 9 S 10 20 ft wind gust.12 13 14 14 15 17 Mix hgt (ft)....6800 500 500 500 500 500 Transport wind..S 8 S 12 S 14 S 16 SW 15 SW 15 .MONDAY... Sky/weather.........Sunny (20-30 percent). Max temperature.....Around 108. Min humidity........19 percent. Wind (20 ft)........Southwest winds around 10 mph. Mixing height.......10100 ft AGL increasing to 11100 ft AGL late in the afternoon. Transport winds.....Southwest 15 to 20 mph. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky (%).........26 11 10 21 40 18 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Temp............83 84 92 99 104 106 RH..............48 48 36 26 22 20 20 ft wind......SW 10 SW 10 SW 12 SW 13 SW 12 SW 12 20 ft wind gust.17 16 18 20 18 17 Mix hgt (ft)....500 800 2000 4800 8700 11100 Transport wind..SW 15 SW 14 W 18 W 16 W 14 SW 15 .MONDAY NIGHT... Sky/weather.........Mostly clear (5-15 percent). Min temperature.....Around 81. Max humidity........56 percent. Wind (20 ft)........South winds around 10 mph. Gusty and erratic winds expected near thunderstorms overnight. Mixing height.......500 ft AGL. Transport winds.....Southwest around 15 mph increasing to 15 to 20 mph in the late evening and overnight. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........5 12 17 7 47 Weather cov..... S CHC S CHC Weather type....NONE NONE NONE NONE RNSHWR RNSHWR Tstm cov........ S CHC S CHC Temp............107 101 92 89 87 83 RH..............19 24 33 35 38 43 20 ft wind......S 12 S 12 S 14 S 13 SW 12 SW 10 20 ft wind gust.20 17 21 21 18 17 Mix hgt (ft)....9200 1000 500 500 500 500 Transport wind..SW 15 S 15 S 17 SW 18 SW 17 SW 16 .TUESDAY... Sky/weather.........Mostly sunny (25-35 percent). Max temperature.....Around 106. Min humidity........25 percent. Wind (20 ft)........Southwest winds 5 to 10 mph. Gusty and erratic winds expected near thunderstorms early in the morning. Mixing height.......10300 ft AGL increasing to 10900 ft AGL late in the afternoon. Transport winds.....Southwest 10 to 20 mph. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky (%).........32 45 23 16 14 15 Weather cov.....S CHC Weather type....RNSHWR NONE NONE NONE NONE NONE Tstm cov........S CHC Temp............82 82 90 97 102 105 RH..............46 56 44 35 29 25 20 ft wind......SW 9 SW 9 SW 10 SW 10 SW 9 S 8 20 ft wind gust.16 14 16 16 15 14 Mix hgt (ft)....500 1100 2300 5000 8600 10900 Transport wind..W 13 SW 12 W 21 W 18 W 15 SW 15 $$ Forecaster...Prater Requested by...CHIEF VENTRCA Type of request...WILDFIRE .TAG 2620331.0/FWD .DELDT 08/23/26 .FormatterVersion 2.0.0 .EMAIL JACOB.VENTRCA@FLOWERMOUND.GOV