RSS Mesoscale Discussions from Storm Prediction Center
WW 155 TORNADO KS OK 270240Z - 270900Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 155
NWS Storm Prediction Center Norman OK
940 PM CDT Sun Apr 26 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southern Kansas
Western and North Central Oklahoma
* Effective this Sunday night and Monday morning from 940 PM
until 400 AM CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes possible
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Isolated supercell thunderstorms are expected tonight near
a warm front lifting northward into southern Kansas. These storms
will pose a risk for a few tornadoes (some may be strong), large to
very large hail, and damaging wind gusts. A more conditional risk
exists across western Oklahoma along a retreating dryline. If a
storm develops across this area, a very favorable environment will
support a risk for tornadoes, very large hail, and damaging wind
gusts.
The tornado watch area is approximately along and 130 statute miles
north and south of a line from 70 miles west southwest of Alva OK to
40 miles east southeast of Enid OK. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5).
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 150...WW 151...WW
152...WW 153...WW 154...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 26035.
...Leitman
Read more
WW 154 SEVERE TSTM KS MO 270210Z - 270900Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 154
NWS Storm Prediction Center Norman OK
910 PM CDT Sun Apr 26 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Kansas
Northwest Missouri
* Effective this Sunday night and Monday morning from 910 PM
until 400 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...Severe thunderstorms will increase from west to east
across the watch area through the nighttime hours. Isolated to
scattered elevated supercell storms will pose a risk for large to
very large hail and damaging wind gusts. If a storm can become
surface based as a warm front lifts northward across
central/southern Kansas, a tornado or two also will be possible. The
the tornado risk is more conditional and uncertain, with the hail
and wind risk expected to be the predominate severe hazard.
The severe thunderstorm watch area is approximately along and 165
statute miles east and west of a line from 55 miles north northeast
of Manhattan KS to 50 miles south southeast of Manhattan KS. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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 150...WW 151...WW
152...WW 153...
AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27035.
...Leitman
Read more
WW 153 TORNADO MO 262355Z - 270700Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 153
NWS Storm Prediction Center Norman OK
655 PM CDT Sun Apr 26 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southwest and South Central Missouri
* Effective this Sunday night and Monday morning from 655 PM
until 200 AM CDT.
* Primary threats include...
A few tornadoes possible
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
SUMMARY...Multiple rounds of severe thunderstorms are expected this
evening into the overnight hours. As storms develop and spread
east/southeast, a risk for a few tornadoes, large hail, and damaging
wind gusts is expected.
The tornado watch area is approximately along and 60 statute miles
east and west of a line from 35 miles west northwest of Vichy MO to
45 miles west southwest of West Plains MO. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU3).
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 149...WW 150...WW
151...WW 152...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 27035.
...Leitman
Read more
WW 0155 Status Updates
STATUS REPORT ON WW 155
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/27/26
ATTN...WFO...ICT...DDC...OUN...
STATUS REPORT FOR WT 155
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC001-007-015-019-025-033-035-047-049-073-077-079-095-097-099-
125-133-145-151-155-173-185-191-205-207-270540-
KS
. KANSAS COUNTIES INCLUDED ARE
ALLEN BARBER BUTLER
CHAUTAUQUA CLARK COMANCHE
COWLEY EDWARDS ELK
GREENWOOD HARPER HARVEY
KINGMAN KIOWA LABETTE
MONTGOMERY NEOSHO PAWNEE
PRATT RENO SEDGWICK
STAFFORD SUMNER WILSON
WOODSON
OKC003-009-011-039-043-045-047-053-055-057-059-065-071-075-093-
103-119-129-141-149-151-153-270540-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CUSTER DEWEY ELLIS
GARFIELD GRANT GREER
Read more
WW 0154 Status Updates
STATUS REPORT ON WW 154
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/27/26
ATTN...WFO...TOP...EAX...ICT...DDC...GID...
STATUS REPORT FOR WS 154
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC003-005-009-013-017-027-029-031-041-043-045-051-053-059-061-
085-087-089-091-103-105-107-111-113-115-117-121-123-127-131-139-
141-143-147-149-157-159-161-163-165-167-169-177-183-197-201-209-
270540-
KS
. KANSAS COUNTIES INCLUDED ARE
ANDERSON ATCHISON BARTON
BROWN CHASE CLAY
CLOUD COFFEY DICKINSON
DONIPHAN DOUGLAS ELLIS
ELLSWORTH FRANKLIN GEARY
JACKSON JEFFERSON JEWELL
JOHNSON LEAVENWORTH LINCOLN
LINN LYON MCPHERSON
MARION MARSHALL MIAMI
MITCHELL MORRIS NEMAHA
OSAGE OSBORNE OTTAWA
PHILLIPS POTTAWATOMIE REPUBLIC
RICE RILEY ROOKS
RUSH RUSSELL SALINE
SHAWNEE SMITH WABAUNSEE
WASHINGTON WYANDOTTE
Read more
WW 0153 Status Updates
STATUS REPORT ON WW 153
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/27/26
ATTN...WFO...SGF...
STATUS REPORT FOR WT 153
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MOC009-011-015-029-039-043-057-059-065-067-077-085-091-097-105-
109-119-125-131-141-145-149-153-161-167-169-185-203-209-213-215-
217-225-229-270540-
MO
. MISSOURI COUNTIES INCLUDED ARE
BARRY BARTON BENTON
CAMDEN CEDAR CHRISTIAN
DADE DALLAS DENT
DOUGLAS GREENE HICKORY
HOWELL JASPER LACLEDE
LAWRENCE MCDONALD MARIES
MILLER MORGAN NEWTON
OREGON OZARK PHELPS
POLK PULASKI ST. CLAIR
SHANNON STONE TANEY
TEXAS VERNON WEBSTER
WRIGHT
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.
Read more
WW 0152 Status Updates
STATUS REPORT ON WW 152
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/27/26
ATTN...WFO...TSA...OUN...
STATUS REPORT FOR WT 152
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC007-143-270340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BENTON WASHINGTON
OKC001-021-035-037-041-047-053-071-097-103-105-113-115-117-119-
131-143-145-147-270340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ADAIR CHEROKEE CRAIG
CREEK DELAWARE GARFIELD
GRANT KAY MAYES
NOBLE NOWATA OSAGE
OTTAWA PAWNEE PAYNE
ROGERS TULSA WAGONER
WASHINGTON
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
Read more
WW 0151 Status Updates
STATUS REPORT ON WW 151
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GYI
TO 45 SSW SPS TO 65 NNW ABI.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0554
..MOORE..04/27/26
ATTN...WFO...OUN...FWD...SJT...
STATUS REPORT FOR WT 151
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC015-019-031-033-049-051-067-085-087-099-137-141-270340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CADDO CARTER COMANCHE
COTTON GARVIN GRADY
JEFFERSON LOVE MCCLAIN
MURRAY STEPHENS TILLMAN
TXC009-023-077-485-270340-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
WICHITA
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
Read more
MD 0560 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR EAST CENTRAL AND SOUTHEAST MISSOURI
Mesoscale Discussion 0560
NWS Storm Prediction Center Norman OK
1250 AM CDT Mon Apr 27 2026
Areas affected...East central and southeast Missouri
Concerning...Severe potential...Watch possible
Valid 270550Z - 270645Z
Probability of Watch Issuance...40 percent
SUMMARY...A storm cluster with embedded supercells will approach
areas of Missouri immediately east of the current watch. The need
for a downstream watch is uncertain in the short term.
DISCUSSION...A storm cluster with embedded supercell structures
continues to move eastward across south central MO. These storms
are now approaching the east edge of WW #153, which coincides with
the east edge of the buoyancy gradient. There will be a tendency
for some eastward expansion of the warm sector in response to warm
advection with 40 kt south-southwesterly low-level flow. However,
it is unclear if destabilization will keep pace with the lead
storms, or if those storms will move east a bit too fast and weaken.
East central and southeast MO will continue to be monitored, and a
small/new watch may be needed, pending short-term trends.
..Thompson/Gleason.. 04/27/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PAH...LSX...SGF...
LAT...LON 38059051 37579038 37259051 37029076 37149124 37949182
38499201 38609175 38679117 38389074 38059051
MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Read more
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0100 AM CDT Mon Apr 27 2026
Valid 271200Z - 281200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS PORTIONS OF THE
MID-MISSISSIPPI VALLEY INTO THE LOWER OHIO VALLEY AND PARTS OF THE
MID-SOUTH...
...SUMMARY...
Widespread strong to severe thunderstorm development appears
probable across the middle Mississippi into lower Ohio Valleys this
afternoon through this evening, accompanied by potential for a few
strong tornadoes, damaging wind gusts and large hail.
...Synopsis...
Water vapor imagery shows a prominent shortwave trough promoting
elevated strong to severe convection across central and eastern
Kansas. This activity is expected to move north and eastward through
Iowa/Missouri/Wisconsin/northern Illinois into daybreak and perhaps
part of the afternoon for some areas. The outflow from this
convection should act to limit the northern extent of greater
destabilization during the afternoon and thus the greatest severe
threat. A surface low will track northeastward along the parent
shortwave. Though this low has trended downward in intensity in
recent model runs, strong low-level wind fields are expected within
the warm sector throughout the day and into the evening. Areas of
pre-frontal convergence and a cold front will be the focus for
convective development along with more strongly forced convection
tied to the shortwave trough. The front will be draped south and
westward into the Ozarks and the southern Plains.
...Mid-Mississippi Valley/Lower Ohio Valley...
As mentioned, surface based buoyancy will be limited by early day
activity. The current expectation is for parts of central/eastern
Missouri into central/southern Illinois and western Kentucky to see
greater destabilization. There is activity ongoing within central
Missouri early this morning that may have some impact, however. This
is the source of greatest uncertainty for these regions. The
kinematic environment will certainly be favorable for supercells.
The moderate to strong 850 mb jet will also lead to potential for
several tornadoes, some of which could be strong. Lapse rates at
mid-levels will be rather steep. Large to very-large hail potential
is evident given the long hodographs. Some upscale growth into one
or more linear segments is expected to occur. This will increase
the threat for damaging winds. An increase in tornado probabilities
was considered. Given the questions regarding early day convection
and where favorable convergence zones/outflow boundaries might be
located reduces confidence. Convective trends into daybreak will
need to be closely monitored.
...Mid-South...
Models indicate potential for supercells along the cold front and
even potentially ahead of it. Forcing for ascent will be weaker, but
this may help to keep activity cellular longer. Some of this
activity could develop after 00Z. Mid-level lapse rates are expected
to be steep enough and mid-level flow strong enough to support large
to potentially very large hail and damaging winds. The tornado
threat will likely be lower given the time of day and tendency for
storms to be at least slightly elevated.
...Upper Midwest...
Observational and model trends suggest destabilization will be more
limited on account of convection at daybreak and beyond. Even so,
strong low-level and effective shear will still allow storms to be
organized and capable of large hail, damaging winds and a couple
tornadoes. There will be potential for both convection at daybreak
and also during the afternoon. The greatest potential for afternoon
supercells would be in parts of eastern Iowa along with the surface
low and colder air aloft.
...Western/central Texas...
As moisture returns westward during the evening, some model guidance
suggest convection might try to develop along the retreating
dryline. Buoyancy and shear would support a threat for large hail
and perhaps severe winds. However, mid-level ascent will be very
weak and models generally do not sustain these convective attempts.
Severe probabilities may be needed if confidence in development
increases.
..Wendt/Moore.. 04/27/2026
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SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1231 AM CDT Mon Apr 27 2026
Valid 281200Z - 291200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING IN A CORRIDOR ACROSS THE SOUTHEASTERN GREAT PLAINS
THROUGH LOWER MISSISSIPPI AND TENNESSEE VALLEYS...
...SUMMARY...
Scattered strong to severe thunderstorm development is probable
across parts of the southeastern Great Plains through the lower
Mississippi and Tennessee Valleys Tuesday afternoon and evening.
The evolution of a long-lived organized cluster accompanied by
potentially damaging wind gusts appears possible.
...Discussion...
Latest model output still indicates that the center of a fairly
broad surface cyclone may undergo further deepening while migrating
northeast of the upper Great Lakes region during this period,
particularly as it reaches the southeastern Hudson Bay vicinity,
near the southeastern periphery of an evolving mid-level low.
Surrounding this low, it appears that larger-scale mid-level
troughing, encompassing much of interior North America to the east
of the northern Rockies, may make slow further progress toward the
northern/mid Atlantic Seaboard, while perhaps undergoing some
amplification along an axis southward through the upper and middle
Mississippi Valley by late Tuesday night. This may support modest
surface wave development along a stalling cold front across the
southeastern Great Plains through lower Ohio Valley, and contribute
to suppression of mid-level ridging across northern portions of the
eastern Gulf Coast states.
Otherwise, mid-level ridging to the north of a prominent subtropical
high, still centered over southern Mexico, is likely to build across
the southern Rockies and adjacent Great Plains, downstream of a low
over the southern mid- to subtropical latitudes of the eastern
Pacific. Only a slow eastward progression of this low is forecast,
to the south of mid/upper ridging building northeastward into
British Columbia and the Pacific Northwest.
...Southeastern Great Plains into Tennessee Valley...
There is continuing spread within the latest model output, but a
consensus of guidance suggests that pre-cold frontal outflow,
generated by convection today through tonight, will remain a notable
feature into and through this period. It appears that the leading
edge of this air mass may curve from parts of the southern
Appalachians/Tennessee Valley toward the Ark-La-Tex at 12Z Tuesday.
The extent to which this advances southward through the eastern Gulf
Coast states on its eastern flank, while retreating northeastward
through the lower Mississippi Valley on its western flank, remains
unclear. However, it seems probable that it will become a focus for
intensifying thunderstorm development by late Tuesday afternoon in
response to boundary-layer destabilization along and to its south,
and forcing for ascent aided by low-level warm advection.
At the same time, a corridor of stronger pre-frontal surface heating
across parts of northeastern Texas through north central Arkansas
may become the focus for stronger convective development, in the
presence of larger CAPE supported by steeper mid-level lapse rates.
More strongly capping elevated mixed-layer air may continue to
inhibit more than isolated thunderstorm initiation farther to
southwest, along the dryline across central Texas into areas
near/south of Del Rio TX.
Strengthening shear with the approach of digging mid-level troughing
on the southern fringe of the westerlies is likely provide support
for a few supercells across the southeastern Great Plains, and
upscale growing and organizing clusters propagating into the lower
Mississippi Valley. There appears a consensus within the model
output that the intersection of this activity with the preceding
outflow boundary may ultimately provide the focus for the most
prominent evolving cluster, which may pose a risk for widespread
strong to severe gusts across parts of Arkansas through the lower
Mississippi Valley by late Tuesday evening.
Too many uncertainties exist to upgrade the categorical severe
threat at this time, but this remains possible in later outlooks for
this period.
..Kerr.. 04/27/2026
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