535
FNUS74 KFWD 181212
FWSFWD

Spot Forecast for Whitney Lake...U.S. Army Corps of Engineers
National Weather Service Fort Worth TX
712 AM CDT Fri Oct 18 2024

Forecast is based on ignition time of 0800 CDT on October 18.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Mostly sunny and warm weather is expected today with highs around
80. The relative humidity will fall from around 65 percent at sunrise
to just above 40 percent this afternoon. A southeast wind will prevail
in the 6 to 12 mph range today with afternoon gusts around 20 mph.
No precipitation or wind shifts are expected today. Cool and humid
conditions are expected tonight followed by mostly sunny and warm
weather on Saturday.

.REST OF TODAY...

Sky/weather.........Mostly sunny (20-30 percent).
Max temperature.....Around 80.
Min humidity........43 percent.
Wind (20 ft)........Southeast winds 5 to 9 mph.
Mixing height.......4700 ft AGL.
Transport winds.....Southeast 8 to 15 mph.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........16  12  16  16  26  13  13  19  27  38
Weather cov.....
Weather type....
Tstm cov........
Temp............50  53  59  64  68  72  75  77  79  79
RH..............61  59  51  46  47  46  43  47  44  44
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..6   6   8   10  10  10  12  12  12  10
20 FT wind gust.10  12  14  15  16  17  20  20  20  18
Mix hgt (kft)...0.4 0.7 1.2 1.8 2.6 3.5 4.1 4.5 4.7 4.5
Transp wind dir.SE  SE  S   S   S   S   S   SE  SE  SE
Transp wind spd.8   10  14  15  15  15  14  14  15  15
Haines index....4   4   4   4   4   5   5   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
Min temperature.....Around 55.
Max humidity........83 percent.
Wind (20 ft)........Southeast winds 5 to 8 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southeast 12 to 16 mph.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........43  47  42  40  22  21  20  19  19  20  20  26
Weather cov.....
Weather type....
Tstm cov........
Temp............78  76  72  69  67  66  65  63  62  61  58  58
RH..............43  46  51  53  54  54  54  58  60  65  72  72
20 FT wind dir..SE  SE  E   SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..10  8   8   9   9   9   8   7   6   6   5   5
20 FT wind gust.17  15  15  16  16  16  15  14  13  12  10  9
Mix hgt (kft)...2.4 0.9 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.SE  SE  E   E   SE  SE  SE  SE  SE  SE  SE  SE
Transp wind spd.13  12  12  14  16  16  16  14  15  14  12  12
Haines index....5   5   5   5   5   5   5   3   3   3   3   3

.SATURDAY...

Sky/weather.........Mostly sunny (20-30 percent).
Max temperature.....Around 81.
Min humidity........44 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 8 mph early
                    in the morning.
Mixing height.......5500 ft AGL.
Transport winds.....Southeast 10 to 14 mph.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........33  39  36  34  31  29  27  25  19  14  8   7
Weather cov.....
Weather type....
Tstm cov........
Temp............56  55  56  60  64  68  73  77  78  80  80  78
RH..............77  80  83  76  70  63  57  52  49  45  44  45
20 FT wind dir..SE  E   E   E   SE  SE  SE  SE  SE  E   E   E
20 FT wind spd..3   3   5   6   6   7   8   9   9   9   9   9
20 FT wind gust.8   7   8   10  13  14  14  14  14  15  15  15
Mix hgt (kft)...0.4 0.4 0.5 1.1 1.6 2.5 3.5 4.4 4.8 5.1 5.5 3.9
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  E   E
Transp wind spd.10  10  12  13  14  13  12  10  10  12  13  13
Haines index....3   4   4   4   4   4   4   5   5   5   5   5

$$
Forecaster...Fano
Requested by...Stephen Berry
Type of request...PRESCRIBED
.TAG 2424219.7/FWD
.DELDT 10/18/24
.FormatterVersion 2.0.0
.EMAIL stephen.b.berry@usace.army.mil