WW 402 SEVERE TSTM KS OK TX 270225Z - 270800Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 402
NWS Storm Prediction Center Norman OK
925 PM CDT Fri Jun 26 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwest Kansas
Eastern Oklahoma Panhandle
Northeast Texas Panhandle
* Effective this Friday night and Saturday morning from 925 PM
until 300 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A line of strong to severe storms is expected to continue
eastward into southwest Kansas and adjacent portions of the
central/eastern Oklahoma and northeastern Texas Panhandles. Strong
gusts are the primary risk, with isolated instances of large hail
possible as well. Low-level stability is gradually increasing,
keeping the potential for a tornado low, although still non zero.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 40 miles northwest of
Garden City KS to 80 miles south southeast of Guymon OK. 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 398...WW 400...WW 401...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27025.
...Mosier
WW 401 SEVERE TSTM AR KS MO OK 262255Z - 270600Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 401
NWS Storm Prediction Center Norman OK
555 PM CDT Fri Jun 26 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Far Northwest Arkansas
Far Southeast Kansas
Southwest and South Central Missouri
Northern Oklahoma
* Effective this Friday afternoon and Saturday morning from 555
PM until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Thunderstorm development is expected to continue along a
surface boundary extending across far northern Oklahoma into
southwest/south-central Missouri. Strong buoyancy and moderate shear
will support occasionally organized storm structures capable of
isolated hail and strong downdrafts.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 85 miles west southwest
of Alva OK to 40 miles southeast of Fort Leonard Wood MO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).
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 397...WW 398...WW
399...WW 400...
AVIATION...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
27020.
...Mosier
WW 398 SEVERE TSTM CO NE NM OK TX WY 262040Z - 270300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 398
NWS Storm Prediction Center Norman OK
240 PM MDT Fri Jun 26 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Colorado
Western Nebraska
Northeast New Mexico
Western Oklahoma Panhandle
Northwest Texas Panhandle
Eastern Wyoming
* Effective this Friday afternoon and evening from 240 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...At least widely scattered severe storms including a few
supercells and multicells are expected regionally, with large hail
and damaging winds the primary hazards.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 40 miles east northeast
of Douglas WY to 25 miles south of Clayton NM. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
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 397...
AVIATION...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 600. Mean storm motion vector
28025.
...Guyer
WW 0402 Status Updates
STATUS REPORT ON WW 402
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ESE BGD
TO 15 SSW GUY TO 20 WSW GUY TO 25 NNE EHA TO 60 ENE LAA.
..KERR..06/27/26
ATTN...WFO...DDC...GLD...AMA...
STATUS REPORT FOR WS 402
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC025-055-057-067-069-081-083-093-101-119-135-171-175-189-203-
270540-
KS
. KANSAS COUNTIES INCLUDED ARE
CLARK FINNEY FORD
GRANT GRAY HASKELL
HODGEMAN KEARNY LANE
MEADE NESS SCOTT
SEWARD STEVENS WICHITA
OKC007-270540-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BEAVER
TXC211-295-357-393-270540-
TX
. TEXAS COUNTIES INCLUDED ARE
WW 0401 Status Updates
STATUS REPORT ON WW 401
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SE P28 TO
25 NNW GMJ TO 25 N FYV.
..KERR..06/27/26
ATTN...WFO...TSA...ICT...SGF...OUN...
STATUS REPORT FOR WS 401
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC007-270540-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BENTON
OKC003-011-017-035-037-039-041-043-045-047-053-059-071-073-081-
083-093-097-103-105-107-109-111-113-115-117-119-129-131-143-147-
151-153-270540-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CANADIAN
CRAIG CREEK CUSTER
DELAWARE DEWEY ELLIS
GARFIELD GRANT HARPER
KAY KINGFISHER LINCOLN
LOGAN MAJOR MAYES
NOBLE NOWATA OKFUSKEE
OKLAHOMA OKMULGEE OSAGE
OTTAWA PAWNEE PAYNE
ROGER MILLS ROGERS TULSA
WW 0400 Status Updates
STATUS REPORT ON WW 400
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 S RAP TO
20 WNW RAP.
..KERR..06/27/26
ATTN...WFO...BYZ...TFX...GGW...UNR...
STATUS REPORT FOR WS 400
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC017-270540-
MT
. MONTANA COUNTIES INCLUDED ARE
CUSTER
SDC055-063-103-137-270540-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
HAAKON HARDING PENNINGTON
ZIEBACH
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 0398 Status Updates
STATUS REPORT ON WW 398
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WNW DHT
TO 30 N CAO TO 30 NNE LAA TO 5 SW SNY TO 30 S BFF TO 15 W AIA.
PARTS OF REMAINING VALID PORTION OF 398 MAY BE EXTENDED LOCALLY IN
TIME FOR AN HOUR OR SO.
..KERR..06/27/26
ATTN...WFO...BOU...PUB...GLD...CYS...ABQ...AMA...
STATUS REPORT FOR WS 398
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC009-017-061-063-099-125-270300-
CO
. COLORADO COUNTIES INCLUDED ARE
BACA CHEYENNE KIOWA
KIT CARSON PROWERS YUMA
NEC033-105-123-270300-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CHEYENNE KIMBALL MORRILL
OKC025-139-270300-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
No Mesoscale Discussions are in effect as of Sat Jun 27 05:37:03 UTC 2026.SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0802 PM CDT Fri Jun 26 2026
Valid 270100Z - 271200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS INTO EARLY TONIGHT
FROM THE HIGH PLAINS INTO NORTHERN OKLAHOMA AND SOUTHERN MISSOURI...
...SUMMARY...
Scattered severe thunderstorms with severe outflow gusts and large
hail will persist into early tonight across the High Plains and from
northern Oklahoma into southern Missouri.
...Northern OK to southern MO...
Multiple strong-severe storms formed late this afternoon along a
stalled front from the northeast TX Panhandle eastward into northern
OK into southern MO. Seasonably high moisture content in the
boundary layer (dewpoints in the low-mid 70s) and lingering warm
temperatures are contributing to MLCAPE near 3000 J/kg with only
weak convective inhibition, while vertical shear is sufficient for
supercells with large hail (1 to 2 inches in diameter). Storms will
likely persist into tonight as a result of cell interactions and an
increase in warm advection with a strengthening low-level jet,
immediately downstream from a subtle midlevel trough now approaching
northwest OK. The stronger cells/clusters will be capable of
isolated large hail and occasional severe outflow gusts of 60-70 mph
as storms spread slowly southeastward across
northern/central/northeast OK.
A similar environment extends into southern MO along and south of
the stalled front, with a few ongoing cells/clusters. There has
been some localized tornado threat across south central MO where a
discrete storm or two are interacting with a zone of slightly
enhanced low-level shear in a moist environment, though the tornado
threat will remain localized/marginal.
...High Plains...
Widely scattered storm clusters formed this afternoon and continue
to develop this evening with interacting outflows from MT across
eastern WY/NE Panhandle into eastern CO and the western OK Panhandle
on the west edge of the moisture in a largely upslope flow regime.
This corridor is downstream from a pronounced midlevel trough over
the Great Basin/Pacific Northwest, which will encourage a nocturnal
low-level jet to support some persistence of storms into early
tonight, despite weakening buoyancy and increasing inhibition with
eastward extent. Occasional severe outflow gusts and large hail
will be the main threats.
Potential for storms to maintain a wind/hail threat a little deeper
into the overnight hours will be across southwest KS and vicinity.
The storm clusters spreading eastward from CO will encounter
somewhat richer low-level moisture (mid-upper 60s dewpoints) on the
immediate cool side of a stalled front, coincident with a nocturnal
increase in the low-level jet and associated warm advection.
...KY area...
A remnant MCV is moving eastward over western KY with the primary
storm cluster from far southern IN into central KY on the leading
edge of the ascent. These storms have exhibited a primarily linear
mode with a trailing cold pool into western KY. Earlier discrete
storms have since weakened while moving atop the rain-cooled air,
though a few storms may persist into early tonight in the warm
advection regime on the southwest flank of the MCV. The primary
severe threat appears to be isolated wind damage with the leading
line segments across central/northern KY for the next 1-2 hours
before boundary-layer stabilization weakens the storms.
..Thompson.. 06/27/2026
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1233 AM CDT Sat Jun 27 2026
Valid 271200Z - 281200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS LATE THIS
AFTERNOON INTO EARLY TONIGHT ACROSS EASTERN MT AND WESTERN ND...
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS INTO WESTERN SOUTH
DAKOTA AND NEBRASKA...AND ACROSS NORTH CAROLINA...
...SUMMARY...
A mix of initial supercells and later storm clusters will produce
swaths of severe outflow winds and very large hail across the
northern High Plains late this afternoon into early tonight.
Isolated wind damage will also be possible from the Mid-Mississippi
Valley to the Carolinas, as well as across west Texas and the Texas
Panhandle.
...Northern High Plains this afternoon into tonight...
Embedded speed maxima will rotate northeastward over the northern
High Plains, around the eastern periphery of a close midlevel low
evolving over the northern Great Basin and northern Rockies.
Boundary-layer dewpoints in the 60s will continue to spread
northward from KS/NE to the Dakotas, east of a deep lee
trough/cyclone across the central/northern High Plains. The
moistening will occur beneath steep midlevel lapse rates, which
combined with daytime heating will result in large CAPE.
Thunderstorm development is expected this afternoon along both the
surface trough/lee cyclone near the MT/ND border and near the Big
Horn Mountains. The initial storms could be supercells with very
large hail (2-3 inch diameter) near the ND/MT border, and a couple
of tornadoes with any supercells anchored along the surface
boundary, though relatively large temperature-dewpoint spreads and
mode concerns could temper the tornado threat somewhat. By late
evening and early tonight, storms will likely grow upscale and move
northeastward across ND as one or more MCSs with severe outflow
winds (potentially 80+ mph) in the steep lapse rate environment.
More isolated supercells will also be possible farther south into
western SD/NE where isolated very large hail and significant severe
outflow gusts will be possible.
...TN/southern KY to NC this afternoon...
An MCV now over eastern KY will continue eastward near the VA/NC
border during the day, and additional MCVs are likely to emerge from
ongoing storm clusters moving eastward across OK, southwest KS and
the TX Panhandle. Ascent with the MCVs, as well as residual
outflow/differential heating zones, will help focus thunderstorm
development during the afternoon in a moist, unstable environment.
Occasional wind damage will be possible with storm clusters where
low-level lapse rates are relatively steep (south of persistent
clouds) and there is some enhancement of midlevel flow. An isolated
tornado may also occur in the warm advection zone with enhanced
low-level hodograph curvature across TN on the southwest flank of
the western MCV, though confidence in this scenario is low.
...TX Panhandle into west TX late this afternoon/evening...
Though forcing for ascent will be weak at best this far south,
strong surface heating/mixing along the lee trough/dryline could
support high-based thunderstorm development late this afternoon.
Inverted-V profiles will favor the potential for isolated severe
outflow gusts of 60-75 mph.
..Thompson/Chalmers.. 06/27/2026
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