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350
FXUS64 KJAN 051858
AFDJAN

Area Forecast Discussion
National Weather Service Jackson MS
158 PM CDT Wed Jun 5 2024

...New DISCUSSION...

.DISCUSSION...
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Issued at 157 PM CDT Wed Jun 5 2024

Tonight through Thursday...

Expect majority of activity to wind down after 8-10PM, but a few
could linger as late as midnight. As the shortwave trough digs
southeast over the Gulf Coast, expect this to become somewhat cutoff
from the main deep layer trough/cold core over the northern Great
Lakes into south-central Canada. This will pattern will finally
begin to scour out some of the deep layer moisture & promote more
active subsidence & decreased lapse rates overnight & into Thursday.
Expect a downtrend in rain/storm chances, with chances clearing out
of the Delta into the evening hours, Natchez Trace around midnight &
potentially persisting into the Hwy 84 to I-59 corridors through
daybreak through around midday Thursday. A few stronger storms can`t
be ruled out in the I-59 corridor but less probs for severe than
recently. Expect seasonably warm lows in the upper 60s east of I-55
to low 70s west of I-55 while more seasonable highs in the upper 80s
to near 90 degrees. With some aftn mixing & dewpoints falling from
northwest to southeast into Thursday, expect somewhat less
heat/humidity & heat stress to be a little less oppressive. /DC/

Thursday Night through Wednesday...

Storm chances will come to an end Thursday night as a cold front
continues to push south across central MS. Quiet conditions will
continue on Friday as the aforementioned cold front stalls out in
the vicinity of the Hwy 84 corridor. Heading into Saturday,
afternoon global guidance highlights a sfc high pressure settling
into much of the area. Drier air aloft will help suppress storm
chances across most of central MS. Later on Sunday morning, the sfc
high will start to shift east out of the area allowing for moisture
to recover. A shortwave trough will push across the midsouth by
Sunday afternoon/evening increasing rain and storm chances. Several
long term models are hinting at organized convection due to
increased flow around this timeframe which could bring several
strong storms across the area, but forecast confidence on overall
evolution is low at this time. We will continue to monitor trends
and will provide updates as we get closer to the event.

Heading into the start of the new work week, a seasonally anomalous
trough will dig south across the eastern CONUS as a frontal boundary
stalls over the southeast US. This stalled frontal boundary will
help keep rain chances to a minimum through the mid-week across much
of the forecast area. Because of this, the chances for scattered to
isolated showers and storms will be possible mainly for areas along
and south of the I-20 corridor. Shower activity will continue
heading into Wednesday as the frontal boundary shifts further south
towards the Gulf Coast. /CR/
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&&

.AVIATION...
(18Z TAFS)
Issued at 115 PM CDT Wed Jun 5 2024

Another round of SHRA & TSRA possible this afternoon, with 40-50 kt
wind gusts & 1 inch hail possible. Brief categorical reductions will
be possible in storms. Late tonight into early Thursday morning, low
MVFR stratus ceilings will be possible again & patchy fog cannot be
ruled out, especially in the Pine Belt. These ceilings & fog
should lift just after daybreak Thursday. Most SHRA & TSRA migrating
along & southeast of a line from HEZ, PIB-HBG to MEI areas,
especially in the I-59 to Hwy 84 corridors, by daybreak through
midday Thursday. Winds will mainly be southerly & gusty at times
today, gradually shifting more northerly into Thursday aftn. /DC/

&&

.PRELIMINARY POINT TEMPS/POPS...
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Jackson       70  88  69  88 /  50  10   0   0
Meridian      69  89  69  90 /  70  30   0   0
Vicksburg     70  89  69  90 /  40   0   0   0
Hattiesburg   72  89  71  94 /  60  50   0   0
Natchez       70  89  69  90 /  50  10   0   0
Greenville    71  90  71  89 /  20   0   0   0
Greenwood     70  89  69  88 /  40   0   0   0
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&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.
&&

$$

DC/CR/DC