RSS Mesoscale Discussions from Storm Prediction Center
WW 142 SEVERE TSTM AR LA TX 250145Z - 250900Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 142
NWS Storm Prediction Center Norman OK
845 PM CDT Fri Apr 24 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwest Arkansas
Northwest Louisiana
Northeast Texas
* Effective this Friday night and Saturday morning from 845 PM
until 400 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Severe thunderstorms are expected to transition toward a
linear storm mode and develop southeast through tonight along an
outflow boundary oriented across northeast TX and northern
Louisiana. Scattered wind damage, isolated large hail, and a tornado
or two are possible.
The severe thunderstorm watch area is approximately along and 95
statute miles east and west of a line from 20 miles west northwest
of Texarkana AR to 50 miles west southwest of Natchitoches LA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 141...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30035.
...Leitman
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WW 0142 Status Updates
STATUS REPORT ON WW 142
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE DAL
TO 20 WSW PRX TO 15 E PRX TO 15 SW DEQ.
..JEWELL..04/25/26
ATTN...WFO...SHV...FWD...
STATUS REPORT FOR WS 142
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC027-073-091-250340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
COLUMBIA LAFAYETTE MILLER
LAC013-015-017-027-031-043-049-061-069-081-085-119-127-250340-
LA
. LOUISIANA PARISHES INCLUDED ARE
BIENVILLE BOSSIER CADDO
CLAIBORNE DE SOTO GRANT
JACKSON LINCOLN NATCHITOCHES
RED RIVER SABINE WEBSTER
WINN
TXC001-037-063-067-073-119-159-183-203-213-223-231-277-315-343-
365-379-387-401-419-423-449-459-467-499-250340-
TX
. TEXAS COUNTIES INCLUDED ARE
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WW 0141 Status Updates
STATUS REPORT ON WW 141
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..JEWELL..04/25/26
ATTN...WFO...SHV...LZK...OUN...TSA...FWD...
STATUS REPORT FOR WT 141
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC057-061-073-081-091-133-250140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
HEMPSTEAD HOWARD LAFAYETTE
LITTLE RIVER MILLER SEVIER
OKC005-013-019-023-029-033-049-067-069-085-089-095-099-123-137-
250140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
CHOCTAW COAL COTTON
GARVIN JEFFERSON JOHNSTON
LOVE MCCURTAIN MARSHALL
MURRAY PONTOTOC STEPHENS
TXC037-063-067-085-097-119-147-159-181-223-231-277-343-379-387-
397-449-499-250140-
TX
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No Mesoscale Discussions are in effect as of Sat Apr 25 03:16:04 UTC 2026.
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0800 PM CDT Fri Apr 24 2026
Valid 250100Z - 251200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE ARK-LA-TEX...
...SUMMARY...
A severe threat will continue this evening from the southern Plains,
into the Ark-La-Tex and Lower Mississippi Valley. Large hail, wind
damage and a couple tornadoes will be possible. The strongest of
storms could produce hailstones greater than 2 inches in diameter.
...Southern Plains/Ark-La-Tex/Lower Mississippi Valley...
A mid-level shortwave trough is evident on water vapor over the
Ark-La-Tex this evening. Ahead of the trough, a cluster of strong to
severe thunderstorms is ongoing from near the Red River
northeastward across far southeast Oklahoma into western Arkansas.
This cluster is located at the northern end of an axis of strong
instability, with the RAP showing MLCAPE near the instability axis
in the 2500 to 3500 J/kg range. In this area, RAP forecast soundings
also show steep mid-level lapse rates, exceeding 7.5 C/km. In
addition to this favorable thermodynamic environment, a low to
mid-level speed max is evident over the Ark-La-Tex, where flow is
westerly at 45 to 50 knots. This is creating moderate to strong
deep-layer shear, which will continue to be favorable for severe
storms this evening. Cells that can remain semi-descrete will could
be supercellar and have potential for large to very large hail.
Hailstones greater than 2 inches in diameter will be possible with
the more intense storms. The large hail threat should persist for a
few more hours as the cluster interacts with the strong instability
over the Ark-La-Tex. Supercells could also be associated with a
wind-damage and tornado threat.
The cluster of storms is expected to gradually organize into a
linear MCS, moving east-southeastward into the lower Mississippi
Valley during the mid to late evening. Severe wind gusts will become
the primary threat as the line segment develops. A couple of QLCS
tornadoes will be possible as well. The severe threat may persist
into the early overnight period...See MCD 521 and 523.
..Broyles.. 04/25/2026
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