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Shenandoah, Louisianna 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Shenandoah LA
National Weather Service Forecast for: Shenandoah LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 3:31 pm CST Nov 10, 2024
 
Tonight

Tonight: A 20 percent chance of showers after 5am.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 69. East wind around 5 mph becoming calm.
Partly Cloudy
then Slight
Chance
Showers and
Patchy Fog
Veterans
Day
Veterans Day: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 80. North wind 5 to 10 mph.
Patchy Fog
then Mostly
Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 63. North wind around 5 mph.
Partly Cloudy


Tuesday

Tuesday: Mostly sunny, with a high near 79. East wind around 5 mph.
Mostly Sunny


Tuesday
Night
Tuesday Night: A 30 percent chance of showers after midnight.  Mostly cloudy, with a low around 68. East wind around 5 mph.
Mostly Cloudy
then Chance
Showers

Wednesday

Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 82. Southeast wind 5 to 10 mph.  Chance of precipitation is 60%.
Chance
Showers then
Showers
Likely
Wednesday
Night
Wednesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming northwest after midnight.  Chance of precipitation is 60%.
Showers
Likely then
Chance
T-storms
Thursday

Thursday: A 20 percent chance of showers and thunderstorms before noon.  Mostly sunny, with a high near 77. North wind 5 to 10 mph.
Slight Chance
T-storms then
Mostly Sunny

Thursday
Night
Thursday Night: Partly cloudy, with a low around 58. Northeast wind around 5 mph.
Partly Cloudy


Lo 69 °F Hi 80 °F Lo 63 °F Hi 79 °F Lo 68 °F Hi 82 °F Lo 67 °F Hi 77 °F Lo 58 °F

 

Tonight
 
A 20 percent chance of showers after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. East wind around 5 mph becoming calm.
Veterans Day
 
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 80. North wind 5 to 10 mph.
Monday Night
 
Partly cloudy, with a low around 63. North wind around 5 mph.
Tuesday
 
Mostly sunny, with a high near 79. East wind around 5 mph.
Tuesday Night
 
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 68. East wind around 5 mph.
Wednesday
 
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 82. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
 
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming northwest after midnight. Chance of precipitation is 60%.
Thursday
 
A 20 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 77. North wind 5 to 10 mph.
Thursday Night
 
Partly cloudy, with a low around 58. Northeast wind around 5 mph.
Friday
 
Mostly sunny, with a high near 76. Northeast wind around 5 mph.
Friday Night
 
Partly cloudy, with a low around 57. East wind around 5 mph.
Saturday
 
Mostly sunny, with a high near 76. East wind around 5 mph.
Saturday Night
 
Mostly clear, with a low around 60. East wind around 5 mph.
Sunday
 
Mostly sunny, with a high near 79. South wind 5 to 10 mph.

 

Forecast from NOAA-NWS for Shenandoah LA.

Weather Forecast Discussion
773
FXUS64 KLIX 102135
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
335 PM CST Sun Nov 10 2024

...New SHORT TERM, LONG TERM, MARINE...

.SHORT TERM...
(This evening through Monday night)
Issued at 325 PM CST Sun Nov 10 2024

Rafael is now a post tropical cyclone with the center mainly
exposed. There has been one burst of convection to the south of
Terrebonne Parish which produced gusts well in excess of 40
knots, but that cluster is propagating southward. That should
pretty much end any significant threat of thunderstorms or heavy
rainfall. Likely to still be some patches of light rain for the
next 3-6 hours. Main forecast questions for the next 36 hours are
whether there will be fog overnight tonight and how quickly the
deeper dry air works into the area. We do expect some low ceilings
and lowered visibilities if winds decouple overnight, but not
confident on dense fog occurring, as there`s still enough of a
gradient to keep things mixed. Forecast soundings for Monday
morning really don`t indicate drier air getting much further east
than Interstate 55. Areas south of Interstate 10 may not entirely
clear out for the entire period of the short term ending 12z
Tuesday morning, and could even see a little light precipitation
tomorrow. Areas that see sunshine on Monday could get into the
lower 80s, or even a shade warmer, but most of the area likely to
remain in the 70s.

&&

.LONG TERM...
(Tuesday through Saturday night)
Issued at 325 PM CST Sun Nov 10 2024

The next upper trough will move through the Mississippi River
Valley Wednesday night with very moist air in advance of it.
Showers and thunderstorms are likely ahead of the front Wednesday
and Wednesday night, but that`s about the last thing the
operational medium range models agree on. GFS 12z run (and the
couple preceding that) never brings cooler and/or drier air into
the area with temperatures running 10-15F above normal, even after
the frontal passage. The ECMWF operational is 10-15F lower on
overnight lows, dropping morning lows well into the 40s across the
north half of the area Friday and Saturday mornings, with highs
about 5 degrees cooler than the GFS. It should be noted that there
is quite a bit of spread in the ECMWF ensemble for the end of the
week, with the 90th percentile low temperatures still about 5
degrees cooler than the GFS deterministic. The NBM temperatures at
the end of the week are a compromise, and would expect that there
will be movement of those numbers in later packages, with the
somewhat cooler solutions more reasonable. After all, it is mid-
November.

&&

.AVIATION...
(18Z TAFS)
Issued at 1141 AM CST Sun Nov 10 2024

Most terminals with MVFR conditions occasionally lowering to IFR
briefly within patches of rain. Threat of TSRA is rather limited,
and if it is going to occur, it`d be in the next 6 hours or so,
with KHUM the favored terminal. MVFR conditions likely to lower to
IFR at multiple terminals after sunset, even as any widespread
precipitation ends. Potential for very low conditions exists after
midnight tonight where winds decouple in the moist airmass.
Favored terminals for this would be KMCB/KBTR and perhaps KHDC.
Expect MVFR conditions to return at mid-morning Monday, and then
perhaps VFR Monday afternoon.

&&

.MARINE...
Issued at 325 PM CST Sun Nov 10 2024

Convectively induced winds in our southwestern waters should slack
off within the hour. Otherwise, winds are beginning to relax, with
Small Craft Advisory over most of the inner waters replaced with
Small Craft Exercise Caution headlines with forecast issuance, and
the one over the outer waters replaced at mid-evening. We don`t
have a lot of wave height reports over the open waters this
afternoon, but working under the assumption that the seas are
going to take somewhat longer to subside than the winds. Don`t
expect that there will be a need to go much further than Monday
morning with any headlines with this event. Right now, the wind
forecast would indicate potential for Exercise Caution headlines
with the mid-week front, as pressure gradient is well to the north
of the area.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  65  78  58  77 /  20  10  10  10
BTR  69  83  62  82 /  10   0  10  10
ASD  69  78  64  79 /  40  30  10  10
MSY  71  77  68  78 /  40  20  10  10
GPT  69  77  65  79 /  50  40  20  10
PQL  70  80  66  82 /  60  40  20  10

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Coastal Flood Advisory from 9 PM this evening to 9 AM CST Monday
     for LAZ057-058-060-066>070-076>078-080-082-084-086-087.

GM...Small Craft Advisory until 9 PM CST this evening for GMZ570-572-
     575.

MS...Coastal Flood Advisory from 9 PM this evening to 9 AM CST Monday
     for MSZ086.

GM...Small Craft Advisory until 9 PM CST this evening for GMZ572-575.

&&

$$

SHORT TERM...RW
LONG TERM....RW
AVIATION...RW
MARINE...RW
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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