309
FXUS64 KJAN 300807
AFDJAN

Area Forecast Discussion
National Weather Service Jackson MS
307 AM CDT Mon Jun 30 2025

...New DISCUSSION...

.DISCUSSION...
Issued at 307 AM CDT Mon Jun 30 2025

Through Tuesday: The hot and humid pattern will persist through
the early portion of the week. With PW remaining near 2 inches,
daily diurnal convection will continue to be more prevalent than
typical of a generic summertime day. Additionally, added forcing
from a passing upper trough and approaching front may help to
elevate rain chances today and tomorrow. Given the moisture-rich
environment and more erratic storm motions, localized flooding
can`t be ruled out each day. A few stronger storms will also be
possible, especially tomorrow when there is perhaps greater
potential for convective clusters to form composite outflows.
Ahead of the rain each day, heat stress will be a concern as heat
indices soar into the triple digits. A Heat Advisory continues
today for the Delta area where heat index readings above 105F are
more likely.

Wednesday through the Independence Day weekend: Guidance continues
to trend drier and warmer over the back half of the week as a
summertime front pushes the deeper moisture south and east of the
area, at least temporarily. The decrease in convection and
relatively drier conditions (dewpoints will still be into the 70s
most days) will allow for an upward trend in high temps, possibly
pushing the upper 90s by Saturday and Sunday. As moisture begins
to creep back in through the end of the forecast period, heat
stress will be an increasing concern with additional advisories
possible by the end of the week. /DL/

&&

.AVIATION...
(06Z TAFS)
Issued at 1254 AM CDT Mon Jun 30 2025

Brief patchy fog or low clouds will be possible through around
daybreak, though confidence is not high enough to prevail at any
TAF site. Scattered mainly afternoon and evening TS are expected,
with brief categorical reductions and gusty wind possible.
Greatest coverage is expected to be east of I-55. Otherwise, VFR
conditions will prevail through the remainder of the TAF period.
/DL/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       90  74  90  73 /  50  30  70  20
Meridian      88  72  89  71 /  70  30  80  20
Vicksburg     93  75  91  73 /  30  20  60  20
Hattiesburg   91  74  91  73 /  80  30  80  30
Natchez       91  74  91  73 /  30  20  60  20
Greenville    91  74  89  72 /  30  30  50  10
Greenwood     91  74  90  72 /  50  30  70  10

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Heat Advisory from 11 AM this morning to 7 PM CDT this evening
     for MSZ018-019-025-034-035-040-041-047-053.

LA...Heat Advisory from 11 AM this morning to 7 PM CDT this evening
     for LAZ008-009-016-025.

AR...Heat Advisory from 11 AM this morning to 7 PM CDT this evening
     for ARZ074-075.

&&

$$

DL