268
FNUS74 KSHV 140902
FWSSHV

Spot Forecast for comp 87...usfs
National Weather Service Shreveport LA
402 AM CDT Fri Jun 14 2024

Forecast is based on ignition time of 0600 CDT on June 14.
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...

Dry conditions will persist across the districts under the
influence of an upper ridge parked over the Ark-La-Tex. Little
wind is expected given a loose pressure gradient overhead. That
being said, 20ft winds will likely sit below active burn criteria
as guidance advertises calm winds just about area wide. This
should improve into Saturday with variable winds between 3-5 mph.
Along with the calm winds under the ridge, drier conditions will
prevail with RH values in the 30`s. No real change is expected
here through the period. Finally, mixing heights will reflect the
drier column as they approach 5000ft this afternoon, and will
increase to near 6000ft for Saturday.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........64 at ignition...Max 93.
RH..................93 percent at ignition...Min 40 percent.
Wind (20 ft)........
 Slope/valley.......Winds northeast at 1 mph at
                    ignition...otherwise Light winds.
Mixing height.......300 ft AGL at ignition...otherwise 5600 ft AGL.
Mixing height (m)...300 meters AGL at ignition...otherwise 91-1707
                    meters AGL.
Transport winds.....East 6 to 7 mph decreasing to 5 to 6 mph in the
                    afternoon.
Transport winds m/s.East 2 to 3 meters/second.
Dispersion index....7 increasing to 19 late in the morning, then
                    increasing to 30 in the afternoon decreasing to
                    23 late in the afternoon.
LVORI...............4.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9   2   0   0   9   3   5   9   7   7   4   1
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............64  65  71  77  82  86  88  90  91  92  93  92
RH..............93  93  78  68  57  50  47  44  42  41  40  41
20 FT wind dir..NE  N   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..1   1   1   1   2   2   2   2   2   2   3   3
20 FT wind gust.2   2   2   2   4   4   5   5   5   5   6   5
Mix hgt (kft)...0.3 0.4 0.4 1.1 2.2 3.6 4.4 4.8 5.3 5.6 5.5 5.4
Mix hgt (km)....0.1 0.1 0.1 0.3 0.7 1.1 1.3 1.5 1.6 1.7 1.7 1.6
Transp wind dir.NE  NE  NE  E   E   E   E   E   E   E   NE  NE
Transp wind spd.6   6   7   7   7   6   5   5   5   5   5   6
Trans wind dir..NE  NE  NE  E   E   E   E   E   E   E   NE  NE
Trans spd (m/s).3   3   3   3   3   3   2   2   2   2   2   3
Dispersion idx..4   6   10  15  20  23  26  28  31  33  31  23
LVORI...........6   6   5   3   2   2   2   2   2   1   1   1

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
Temperature.........Min 70.
RH..................Max 87 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
Mixing height.......300 ft AGL.
Mixing height (m)...91-1158 meters AGL.
Transport winds.....East 5 to 7 mph shifting to the southeast 3 to
                    5 mph after 3 am.
Transport winds m/s.East 1 to 3 meters/second.
Dispersion index....8 decreasing to 2 early in the evening.
LVORI...............4.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........0   0   0   0   1   1   1   4   1   1   0   7
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............92  89  85  81  78  75  75  74  72  72  71  71
RH..............41  47  55  63  67  74  74  74  79  81  81  84
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  E   SE  S   S
20 FT wind spd..3   2   2   2   2   1   1   1   1   1   1   1
20 FT wind gust.6   6   6   6   5   4   4   4   4   4   4   4
Mix hgt (kft)...3.8 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.4
Mix hgt (km)....1.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.NE  E   E   E   E   E   E   E   E   SE  SE  SE
Transp wind spd.6   7   7   7   7   7   6   5   5   5   5   3
Trans wind dir..NE  E   E   E   E   E   E   E   E   SE  SE  SE
Trans spd (m/s).3   3   3   3   3   3   3   2   2   2   2   1
Dispersion idx..12  3   1   2   3   3   2   2   2   2   2   2
LVORI...........2   2   2   3   3   3   4   4   4   5   5   6

.SATURDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........Max 96.
RH..................Min 39 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
Mixing height.......7700 ft AGL.
Mixing height (m)...91-2347 meters AGL.
Transport winds.....East 3 to 7 mph.
Transport winds m/s.East 1 to 3 meters/second.
Dispersion index....8 increasing to 19 late in the morning, then
                    increasing to 32 late in the morning increasing
                    to 47 early in the afternoon increasing to 59
                    decreasing to 50 late in the afternoon
                    decreasing to 35.
LVORI...............4.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9   10  7   2   1   1   2   3   4   5   5   6
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............70  71  76  83  87  90  93  94  95  96  96  96
RH..............87  87  79  63  57  50  44  41  40  39  39  39
20 FT wind dir..NW  N   NW  N   N   NE  E   E   E   SE  SE  SE
20 FT wind spd..1   1   1   1   2   2   2   2   2   3   3   3
20 FT wind gust.4   4   4   4   4   4   5   5   6   6   6   7
Mix hgt (kft)...0.3 0.3 0.5 1.1 2.5 4.1 6.0 6.9 7.3 7.7 7.4 5.5
Mix hgt (km)....0.1 0.1 0.2 0.3 0.8 1.2 1.8 2.1 2.2 2.3 2.3 1.7
Transp wind dir.E   NE  NE  E   E   SE  SE  SE  SE  SE  SE  SE
Transp wind spd.3   5   5   5   6   6   7   7   6   6   6   6
Trans wind dir..E   NE  NE  E   E   SE  SE  SE  SE  SE  SE  SE
Trans spd (m/s).1   2   2   2   3   3   3   3   3   3   3   3
Dispersion idx..3   4   7   12  19  32  47  57  61  58  50  35
LVORI...........6   6   5   3   2   1   1   1   1   1   1   1

$$
Forecaster...KNAPP
Requested by...Jeff Luneau
Type of request...PRESCRIBED
.TAG 2416101.0/SHV
.DELDT 06/14/24
.FormatterVersion 1.0.26
.EMAIL jeffery.luneau@usda.gov