LIX issues Area Forecast Discussion (AFD) at Jul 5, 6:39 PM CDT ...New AVIATION...762
FXUS64 KLIX 052339
AFDLIX
Area Forecast Discussion
National Weather Service New Orleans LA
639 PM CDT Fri Jul 5 2024
...New AVIATION...
.SHORT TERM...
(This evening through Sunday night)
Issued at 311 PM CDT Fri Jul 5 2024
Through the weekend, the forecast area will continue to remain
under the western periphery of a broad upper level ridge axis
dominating the Southeastern CONUS. The result will be a
continuation of very typical Summer conditions across the region
each day. Highs will be near average in the lower 90s and
dewpoints will range from the mid to upper 70s in the afternoon
hours. This will push heat index values to around 105 degrees each
afternoon. The warm and unstable airmass in place will produce
scattered convective activity along pre-existing weak meso-scale
boundaries. This convection will be slow moving and will be fairly
short-lived at generally an hour or less. The highest threat will
be the potential for locally heavy rainfall that could induce
street flooding in poorly drained areas and occasionally gusty
winds.
&&
.LONG TERM...
(Monday through Thursday night)
Issued at 311 PM CDT Fri Jul 5 2024
Monday and Tuesday, a plume of deeper tropical moisture will move
into the area, and this will help push PWATS back to over 2.5
inches and support more widespread shower and thunderstorm
activity. Some of the rainfall could be locally heavy at times,
and there will be a risk of street flooding issues in low lying
and poorly drained areas. The increase in convection and cloud
cover will also help to push temperatures down slightly into the
upper 80s and lower 90s, especially on Tuesday when rain chances
will be highest. Dewpoints will remain elevated in the upper 70s
and lower 80s, so overnight lows will remain rather warm. However,
the rainfall and cloud cover will limit help to limit heat impacts
each day. Late morning will likely see the highest apparent
temperatures before convection starts to develop.
Wednesday and Thursday will see a return to more typical July
weather conditions as PWATS fall back to normal and temperatures
warm back into the lower 90s. Scattered late morning and afternoon
convection is expected to fire each day, and this reflected by PoP
of 40 to 50 percent.
&&
.AVIATION...
(00Z TAFS)
Issued at 635 PM CDT Fri Jul 5 2024
Convection near the Interstate 10 corridor continues to sag
southward, but will likely take a couple more hours to move away
or die out. Will carry TEMPO TSRA through 02z for KBTR, KMSY,
KNEW, KGPT, KASD with IFR visibilities, MVFR ceilings and
potential for gusts to 30 knots. Most of the overnight hours
should see VFR conditions, but MVFR ceilings will return toward
sunrise. The exception will be KMCB, where IFR or lower conditions
are expected again around sunrise. VCSH by mid-morning Saturday
will morph to VCTS around midday.
&&
.MARINE...
Issued at 311 PM CDT Fri Jul 5 2024
Onshore flow is expected to increase to 15 to 20 knots over the
western waters early next week as Hurricane Beryl moves toward
Texas, and seas of 3 to 5 feet will develop in response. These
winds and seas will quickly decrease by the middle of next week as
high pressure becomes more dominant over the region. Otherwise,
fairly benign conditions are expected across the remainder of the
waters through the entire period as light onshore flow of 5 to 10
knots and seas of 1 to 3 feet persist. Scattered convection will
develop in the early morning hours each day before dissipating by
the early afternoon. The primary concern from any storms will the
the threat of gusty winds and waterspouts.
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 73 90 74 92 / 50 80 50 60
BTR 76 92 77 93 / 50 90 60 60
ASD 76 92 77 93 / 50 80 50 60
MSY 79 91 80 92 / 50 80 50 60
GPT 78 91 79 91 / 50 80 50 60
PQL 76 92 77 92 / 40 70 50 60
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&
$$
SHORT TERM...PG
LONG TERM....PG
AVIATION...RW
MARINE...PG
Source:
LIX issues Area Forecast Discussion (AFD) at Jul 5, 6:39 PM CDT ...New AVIATION...---------------
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