439
FNUS74 KSHV 080551
FWSSHV

Spot Forecast for Backbone...USFS
National Weather Service Shreveport LA
1251 AM CDT Fri Aug 8 2025

Forecast is based on forecast start time of 0700 CDT on August 08.
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.

.DISCUSSION...

Near calm winds by sunrise will give way to very light SSW to SE to eventually
ESE winds today with speeds generally not to exceed 5 to 10 mph with late morning
and afternoon mixing.  Look for minimum afternoon humidity values near 40-45
percent. We will begin introducing some isolated thunderstorm chances to the
region by Saturday Afternoon but most convection should remain south of the
wildfire region today.


TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........11  10  8   9   10  12  17  23  25  27  38
CWR.............0   0   0   0   0   0   10  10  10  10  10
Temp............73  77  81  87  89  91  93  94  94  94  92
RH..............100 94  85  70  61  56  51  48  48  46  51
20 FT wind dir..S   N   SW  SW  S   SE  E   E   E   E   E
20 FT wind mph..0   0   1   3   4   5   5   5   4   4   3
20 FT wind gust.3   3   5   6   6   7   7   7   7   8   8
Mix hgt (kft)...0.3 0.5 1.2 2.7 4.2 4.6 5.0 6.0 5.8 5.8 4.7
Transp wind dir.S   SW  SW  SW  S   SE  E   E   E   E   SE
Transp wind spd.5   6   5   5   5   3   3   5   5   3   5
Trans wind dir..S   SW  SW  SW  S   SE  E   E   E   E   SE
Trans spd (m/s).2   3   2   2   2   1   1   2   2   1   2
Dispersion idx..4   6   7   16  25  20  22  34  33  25  27
LVORI...........9   6   4   3   2   2   2   1   2   2   2

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................10 percent.
Temperature.........Min 73.
RH..................Max 97 percent.
Wind (20 ft)........Light winds.
Mixing height.......300 ft AGL.
Transport winds.....Southeast 5 to 9 mph shifting to the south 6 to
                    9 mph late in the evening.
Transport winds m/s.Southeast around 2 meters/second shifting to
                    the south 3 to 4 meters/second late in the
                    evening.
Dispersion index....24 decreasing to 4.
LVORI...............4.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........33  28  27  10  6   4   4   7   4   4   6   10
CWR.............10  0   0   0   0   0   0   0   0   0   0   0
Temp............91  89  84  81  79  79  78  77  76  76  75  75
RH..............52  57  67  74  79  82  82  85  90  90  94  90
20 FT wind dir..SE  SE  SE  SE  S   S   S   S   S   S   S   S
20 FT wind mph..2   2   2   2   2   2   1   1   1   1   1   1
20 FT wind gust.8   8   8   7   8   7   7   7   6   6   6   5
Mix hgt (kft)...4.1 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3
Transp wind dir.SE  SE  S   S   S   S   S   S   S   S   S   S
Transp wind spd.5   7   7   9   9   9   9   9   8   7   7   6
Trans wind dir..SE  SE  S   S   S   S   S   S   S   S   S   S
Trans spd (m/s).2   3   3   4   4   4   4   4   4   3   3   3
Dispersion idx..24  3   3   4   4   4   4   4   4   3   3   3
LVORI...........2   3   3   3   4   5   5   6   6   6   6   6

.SATURDAY...

Sky/weather.........Sunny (20-30 percent). Slight chance of showers
                    and thunderstorms in the afternoon.
CWR.................0 percent increasing to 20 percent in the
                    afternoon.
Temperature.........Max 93.
RH..................Min 47 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Mixing height.......7000 ft AGL.
Transport winds.....South 6 to 9 mph shifting to the southeast 8 to
                    9 mph in the afternoon.
Transport winds m/s.South around 3 meters/second shifting to the
                    southeast around 4 meters/second in the
                    afternoon.
Dispersion index....5 increasing to 20 late in the morning, then
                    increasing to 43 late in the morning increasing
                    to 57 late in the morning increasing to 73
                    decreasing to 63 late in the afternoon
                    decreasing to 46.
LVORI...............4.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   5   5   7   10  14  21  40  40  40  40  40
Weather cov.....                            SCH SCH SCH SCH SCH
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........                            SCH SCH SCH SCH SCH
CWR.............0   0   0   0   0   0   0   20  20  20  20  20
Temp............74  73  77  82  86  88  89  91  91  92  92  90
RH..............93  97  90  77  68  61  57  52  50  49  47  52
20 FT wind dir..S   S   S   S   SE  SE  SE  E   E   E   E   E
20 FT wind mph..1   1   1   1   1   1   2   2   2   3   3   3
20 FT wind gust.5   5   5   5   6   7   8   9   10  10  10  10
Mix hgt (kft)...0.3 0.3 1.0 2.3 3.7 5.0 6.0 6.7 7.0 6.8 6.1 4.5
Transp wind dir.S   S   S   S   SE  SE  SE  SE  SE  E   E   E
Transp wind spd.6   6   6   7   9   9   9   9   9   8   8   8
Trans wind dir..S   S   S   S   SE  SE  SE  SE  SE  E   E   E
Trans spd (m/s).3   3   3   3   4   4   4   4   4   4   4   4
Dispersion idx..3   6   7   20  43  57  68  74  77  66  60  46
LVORI...........6   7   5   3   1   1   1   1   1   1   1   1

$$
Forecaster...BERRY
Requested by...PSC3 ROBERY VERDIE
Type of request...WILDFIRE
.TAG 2519503.0/SHV
.DELDT 08/07/25
.FormatterVersion 2.0.0
.EMAIL robert_verdie@firenet.gov