WW 179 TORNADO AR LA MS TN 290240Z - 290900Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 179
NWS Storm Prediction Center Norman OK
940 PM CDT Tue Apr 28 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Far Eastern and Southeastern Arkansas
Extreme Northeast Louisiana
Northern Mississippi
Southwestern Tennessee
* Effective this Tuesday night and Wednesday morning from 940 PM
until 400 AM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered large hail events to 1.5 inches in diameter likely
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Numerous thunderstorms are currently ongoing across the
region. Storm mode is a mix of linear segments (across northern
portions of the watch area) and supercells (across the southern
portion). Strong low-level shear will support the potential for
tornadoes within both the linear segments and supercells. Damaging
gusts and isolated large hail are possible as well.
The tornado watch area is approximately along and 60 statute miles
east and west of a line from 45 miles east northeast of Memphis TN
to 75 miles south of Greenwood MS. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 173...WW 174...WW
175...WW 177...WW 178...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 26035.
...Mosier
WW 177 TORNADO AR LA OK TX 282245Z - 290600Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 177
NWS Storm Prediction Center Norman OK
545 PM CDT Tue Apr 28 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Arkansas
Northern Louisiana
Far Southeast Oklahoma
Northeast and East-Central Texas
* Effective this Tuesday afternoon and Wednesday morning from 545
PM until 100 AM CDT.
* Primary threats include...
A few tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Ongoing thunderstorms across north TX, eastern OK and far
northwest AR are expected to continue southeastward into the moist
and unstable environment that extends from northeast TX through
northern LA and into much of AR. Environmental conditions will
support supercells capable of all hazards, including tornadoes and
very large hail, throughout much of the evening.
The tornado watch area is approximately along and 60 statute miles
east and west of a line from 25 miles northeast of Flippin AR to 75
miles south of Longview TX. For a complete depiction of the watch
see the associated watch outline update (WOUS64 KWNS WOU7).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 169...WW 170...WW
171...WW 172...WW 173...WW 174...WW 175...WW 176...
AVIATION...Tornadoes and 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 27035.
...Mosier
WW 0179 Status Updates
STATUS REPORT ON WW 179
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 ENE PBF
TO 50 SSW MEM TO 35 SW MSL.
..JEWELL..04/29/26
ATTN...WFO...MEG...JAN...
STATUS REPORT FOR WT 179
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC035-290640-
LA
. LOUISIANA PARISHES INCLUDED ARE
EAST CARROLL
MSC007-011-013-015-017-019-025-027-043-049-051-053-055-057-069-
071-075-079-081-083-087-089-095-097-099-101-103-105-107-115-119-
121-123-125-133-135-145-149-151-155-159-161-163-290640-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ATTALA BOLIVAR CALHOUN
CARROLL CHICKASAW CHOCTAW
CLAY COAHOMA GRENADA
HINDS HOLMES HUMPHREYS
ISSAQUENA ITAWAMBA KEMPER
LAFAYETTE LAUDERDALE LEAKE
LEE LEFLORE LOWNDES
MADISON MONROE MONTGOMERY
NESHOBA NEWTON NOXUBEE
OKTIBBEHA PANOLA PONTOTOC
WW 0178 Status Updates
STATUS REPORT ON WW 178
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE ACT
TO 45 S TYR.
..HART..04/29/26
ATTN...WFO...FWD...HGX...
STATUS REPORT FOR WT 178
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC145-161-225-289-293-309-313-395-455-290440-
TX
. TEXAS COUNTIES INCLUDED ARE
FALLS FREESTONE HOUSTON
LEON LIMESTONE MCLENNAN
MADISON ROBERTSON TRINITY
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
WW 0177 Status Updates
STATUS REPORT ON WW 177
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SSE TYR
TO 40 SSE GGG TO 40 ESE LFK AND 35 SW PBF TO 30 NNE LIT TO 5 E
ARG.
..HART..04/29/26
ATTN...WFO...LZK...SHV...
STATUS REPORT FOR WT 177
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC041-043-290340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
DESHA DREW
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
WW 0175 Status Updates
STATUS REPORT ON WW 175
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 E CBM TO
35 S BHM TO 30 NNW MGM TO 20 WNW SEM TO 5 SSW MEI.
..MOORE..04/29/26
ATTN...WFO...BMX...MOB...HUN...
STATUS REPORT FOR WS 175
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC007-063-065-105-107-119-125-290340-
AL
. ALABAMA COUNTIES INCLUDED ARE
BIBB GREENE HALE
PERRY PICKENS SUMTER
TUSCALOOSA
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
WW 0174 Status Updates
STATUS REPORT ON WW 174
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NE BVX TO
45 WSW BNA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0610
..MOORE..04/29/26
ATTN...WFO...MEG...
STATUS REPORT FOR WT 174
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC031-035-037-077-093-107-111-123-290240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CRAIGHEAD CRITTENDEN CROSS
LEE MISSISSIPPI PHILLIPS
POINSETT ST. FRANCIS
MSC003-009-013-017-027-033-057-071-081-093-095-107-115-117-119-
135-137-139-141-143-145-161-290240-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ALCORN BENTON CALHOUN
CHICKASAW COAHOMA DESOTO
ITAWAMBA LAFAYETTE LEE
MARSHALL MONROE PANOLA
PONTOTOC PRENTISS QUITMAN
TALLAHATCHIE TATE TIPPAH
TISHOMINGO TUNICA UNION
WW 0171 Status Updates
STATUS REPORT ON WW 171
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W SEP TO
20 SSW FTW TO 30 NNE CRS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0608
..HART..04/29/26
ATTN...WFO...OUN...SJT...FWD...
STATUS REPORT FOR WT 171
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC035-139-217-349-290240-
TX
. TEXAS COUNTIES INCLUDED ARE
BOSQUE ELLIS HILL
NAVARRO
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
MD 0614 CONCERNING TORNADO WATCH 179... FOR EASTERN ARKANSAS AND NORTHWEST MISSISSIPPI
Mesoscale Discussion 0614
NWS Storm Prediction Center Norman OK
1125 PM CDT Tue Apr 28 2026
Areas affected...Eastern Arkansas and Northwest Mississippi
Concerning...Tornado Watch 179...
Valid 290425Z - 290630Z
The severe weather threat for Tornado Watch 179 continues.
SUMMARY...New thunderstorm development over southeast Arkansas will
pose a severe hail threat.
DISCUSSION...Thunderstorms have developed over the last 45 min over
southeast AR, along a pre-frontal boundary. These storms are in a
very moist and moderately unstable air mass with MLCAPE value around
1000 J/kg. Storms have intensified rapidly with MESH values
suggesting severe hail is already occurring. VADs at LZK/NQA and
model guidance show substantial veering of low-level winds has
occurred in this area, suggesting hail is the main concern as these
storms track eastward into WW179 during the next couple of hours.
Nevertheless, sufficient low-level shear remains for at least the
risk of an isolated tornado.
..Hart.. 04/29/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MEG...JAN...LZK...
LAT...LON 34059240 34519134 34549019 33968986 33129060 33099144
33259205 33609241 34059240
MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0801 PM CDT Tue Apr 28 2026
Valid 290100Z - 291200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS
OF NORTHEAST TEXAS...ARKANSAS...NORTHERN LOUISIANA...AND
MISSISSIPPI...
...SUMMARY...
Severe thunderstorms will continue this evening across parts of the
ArkLaTex into the Lower Mississippi Valley. Very large hail (2+
inches), swaths of severe/damaging winds, and a few tornadoes are
all possible.
...01z Update...
Scattered severe thunderstorms are ongoing across northeast TX into
AR, MS and vicinity. A mix of storms modes, including supercells and
bowing segments will persist into the nighttime hours. Areas of
large to very large hail (2+ inches with strongest cells), a few
tornadoes (a couple could be strong), and damaging wind gusts remain
possible over the next several hours.
The main outlook changes were to reduce severe probabilities across
areas where storm potential has diminished, particularly for the
Lever 4 of 5 (Moderate) risk area in TX where storms have moved
southeast out of that area and redevelopment to the north appears
unlikely.
..Leitman.. 04/29/2026
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1153 PM CDT Tue Apr 28 2026
Valid 291200Z - 301200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS
OF TEXAS AND THE GULF COAST STATES INTO SOUTHERN GEORGIA AND SOUTH
CAROLINAS...AND ACROSS THE CENTRAL APPALACHIANS/SOUTHERN
MID-ATLANTIC...
...SUMMARY...
Widely scattered strong to severe storms may impact a corridor from
south of the Texas Big Bend into the Gulf coast states and southern
Georgia/South Carolina Wednesday afternoon into evening. Additional
strong storms are expected across the central Appalachians and
southern Mid-Atlantic.
...Synopsis...
An upper trough will pivot across the Great Lakes and Midwest today.
Within southern stream flow, a weak shortwave impulse will migrate
through westerly flow aloft from Texas to the GA/SC coast. This will
result in enhanced westerly flow across the southern U.S. and the
Midwest to the Mid-Atlantic. At the surface, a cold front is
forecast to extend from northern IN southwestward into central TX
this morning. This front will develop southward across TX and
southeastward across the Lower MS Valley and Southeast through the
period. The northern extent of the front will shift east across the
Midwest to the Mid-Atlantic. This surface boundary will be a focus
for strong to severe thunderstorm development during the
afternoon/evening.
...TX to GA/SC Coast...
A moist airmass will be in place ahead of the surface front,
particularly across TX where dewpoints in the 70s are common.
Heating into the 80s and 90 of this very moist airmass will result
in a corridor of moderate to strong MLCAPE. The surface boundary
will be the main forcing mechanism for convection across TX and
storm coverage may remain isolated. Further east into the Lower MS
Valley/Southeast, a shortwave impulse will provide modest forcing
for ascent in addition to the southeast sagging cold front.
Isolated supercells across central TX will pose a risk for large
hail, with some potential for 2+ inch hail. Uncertainty concerning
storm coverage and capping across TX precludes an upgrade to Sight
risk at this time. Additional storms are expected to develop closer
to the Sabine Valley and Lower MS Valley this afternoon. Initial
thunderstorm clusters may congeal into one or more linear segment
and move across MS/AL/GA during the late afternoon into evening
hours. Hail and strong wind gusts will be possible with this
activity.
...Central Appalachians/Mid-Atlantic vicinity...
An upper shortwave trough emanating from the Great Lakes/Midwest
upper trough will overspread the region during the afternoon/evening
in tandem with the eastward advancing cold front. Modest boundary
layer moisture is forecast across the region, with dewpoints
generally in the 50s to near 60 F. Modest heating will result in
weak destabilization (generally 500-750 J/kg or less). Despite weak
instability, supercell wind profiles are evident in forecast
soundings. This should aid in at least transient organization of
stronger updrafts with a wind and hail risk. While instability and
moisture will be marginal, 0-1 SRH will approach 150 m2/s2 in
proximity to a weak surface low and a brief tornado could also
occur.
..Leitman/Moore.. 04/29/2026
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1152 PM CDT Tue Apr 28 2026
Valid 301200Z - 011200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS LATE THURSDAY
AFTERNOON AND EVENING ACROSS PARTS OF THE RIO GRANDE NEAR THE TEXAS
BIG BEND...
...SUMMARY...
A couple of strong storms may impact the Rio Grande River vicinity
near the Texas Big Bend late Thursday afternoon and evening, perhaps
accompanied by at least some risk for severe hail.
...Discussion...
It still appears that an elongated area of lower mid-level heights
will continue a slow east-southeastward progression across much of
the upper Mississippi Valley through northern Atlantic Seaboard,
with an embedded cyclonic circulation redeveloping southeastward
through the Great Lakes region. In its wake, split westerlies
likely will remain confluent across and east of the Rockies, as a
short wave perturbation emerges from the subtropical eastern
Pacific.
There appears a much better consensus within latest model output
concerning the inland progression of this perturbation, which is now
generally forecast to accelerate across northern Mexico and adjacent
portions of the U.S. Southwest, toward the Texas Big Bend vicinity
Thursday through Thursday night. Downstream short wave ridging is
forecast to gradually shift east of the southern Rockies, across the
southern Great Plains through Gulf Coast, while subtropical ridging
centered across southern Mexico undergoes further suppression.
In lower levels, to the east of the Rockies, cool surface ridging
will be maintained across much of the Great Plains and
Mississippi Valley into Southeast. Most guidance now indicates that
the frontal zone on the leading edge of this air mass will make
slow, but steady, southward progress into and across the Texas Big
Bend and Hill Country, immediate upper Texas/Louisiana coastal
vicinity, and northern Florida.
Forcing for ascent associated with lower/mid-tropospheric warm
advection, downstream of the approaching subtropical perturbation,
may contribute to multiple rounds of thunderstorm development
above the stable surface-based air across parts of the Permian Basin
and Texas South Plains through much of central Texas by late
Thursday night. Based on latest model output, including Rapid
Refresh and NAM forecast soundings, thermodynamic profiles seem
unlikely to support severe hail. One exception might develop within
moist upslope flow into a more strongly heated environment across
the higher terrain near and south of the Texas Big Bend. Beneath
moderate to strong mid-level flow, the initiation of a couple of
supercells appears possible. However, this activity is expected to
weaken as it acquires less unstable updraft inflow to the east of
the higher terrain.
Otherwise, the front might provide a general focus for widely
scattered thunderstorm activity near the Gulf coast vicinity, while
destabilization beneath cool mid-level air across the Great Basin
into southern Rockies supports scattered, mostly diurnal
thunderstorm activity.
..Kerr.. 04/29/2026
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