863
FNUS74 KOUN 211028
FWSOUN

Spot Forecast for Mallard Fire...TFS
National Weather Service Norman OK
528 AM CDT Fri Aug 21 2026

Forecast is based on forecast start time of 0600 CDT on August 21.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (405) 325-3816 if you have questions
or concerns with this forecast.

...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING...

.DISCUSSION...

There is a low chance for showers and a few thunderstorms before
sunrise. Otherwise, light winds out of the southwest are expected
this morning. Winds will back slightly to the south, and will get
to 10mph by the afternoon. Dangerous temperatures of up to 110 are
possible, in addition to RH values in the low 20s.

.TODAY...

Sky/weather.........Sunny. Slight chance of showers and
                    thunderstorms early in the morning.
Max temperature.....Around 108.
Min humidity........21 percent.
Wind (20 ft)........Southwest winds around 5 mph early in the
                    morning becoming light, then becoming southwest
                    5 to 6 mph early in the morning. Gusty and
                    erratic winds expected near thunderstorms early
                    in the morning.
Mixing height.......9400 ft AGL increasing to 11100 ft AGL late in
                    the afternoon.
Transport winds.....Southwest 9 to 14 mph.
Smoke dispersal.....Poor to excellent (3800-88500 knot-ft).

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   6   18  17  10  16  15  7   6   12  8   5
Weather cov.....SCH
Weather type....RW
Tstm cov........SCH
Temp............78  78  80  86  92  96  101 105 106 108 108 108
RH..............58  58  56  46  40  35  29  24  23  21  21  21
20 FT wind dir..SW  SW  SW  SW  SW  W   SW  SW  SW  S   S   S
20 FT wind spd..5   3   5   5   6   6   6   6   6   6   6   6
20 FT wind gust.7   6   7   7   9   10  9   9   9   9   9   10
Mix hgt (kft)...0.5 0.4 0.4 0.9 1.6 3.1 5.6 7.8 9.4 11  11  11
Transp wind dir.SW  SW  W   W   W   W   SW  SW  SW  S   S   S
Transp wind spd.14  13  10  13  14  13  10  9   9   9   9   9
VRate ktft/1000.6   5   4   10  20  34  50  62  75  84  86  89

.TONIGHT...

Sky/weather.........Mostly clear then becoming partly cloudy late
                    in the evening then becoming mostly clear.
Min temperature.....Around 79.
Max humidity........60 percent.
Wind (20 ft)........South winds 6 to 7 mph.
Mixing height.......500 ft AGL.
Transport winds.....South 10 to 17 mph.
Smoke dispersal.....Poor to excellent (5500-83600 knot-ft).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........7   6   5   48  36  41  13  14  9   15  13  22
Weather cov.....
Weather type....
Tstm cov........
Temp............106 103 100 94  90  89  87  85  84  83  81  81
RH..............22  25  29  36  41  42  46  50  51  53  56  58
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   SW  SW
20 FT wind spd..7   7   6   6   6   6   6   6   6   6   6   6
20 FT wind gust.13  13  10  14  14  14  14  14  14  14  14  13
Mix hgt (kft)...9.3 6.2 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   SW
Transp wind spd.10  13  12  14  14  15  17  17  16  15  14  14
VRate ktft/1000.84  69  7   6   6   6   7   7   6   6   6   6

.SATURDAY...

Sky/weather.........Sunny then becoming mostly sunny late in the
                    afternoon then becoming sunny.
Max temperature.....Around 108.
Min humidity........21 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph.
Mixing height.......10000 ft AGL increasing to 12800 ft AGL late in
                    the afternoon.
Transport winds.....Southwest 7 to 15 mph.
Smoke dispersal.....Poor to excellent (5400-99600 knot-ft)
                    increasing to excellent (73300-115500 knot-ft)
                    late in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........24  6   20  21  24  23  16  7   25  41  28  16
Weather cov.....
Weather type....
Tstm cov........
Temp............81  79  82  85  92  97  100 103 105 106 107 107
RH..............56  60  55  50  40  34  30  26  24  23  21  22
20 FT wind dir..S   S   S   SW  SW  W   SW  SW  SW  SW  SW  SW
20 FT wind spd..6   5   6   6   7   7   7   6   6   6   6   6
20 FT wind gust.12  12  12  12  14  15  14  13  12  12  12  12
Mix hgt (kft)...0.5 0.4 0.6 1.2 2.1 3.7 6.5 10  12  13  13  12
Transp wind dir.SW  SW  SW  SW  SW  SW  S   SW  SW  SW  SW  SW
Transp wind spd.14  14  14  15  15  14  13  12  7   7   10  7
VRate ktft/1000.6   5   8   16  28  45  72  100 69  76  116 73

$$
Forecaster...BUNKER
Requested by...Andrew Chelf
Type of request...WILDFIRE
.TAG 2620161.0/OUN
.DELDT 08/21/26
.FormatterVersion 2.0.0
.EMAIL csdispatch@tfs.tamu.edu