RSS Mesoscale Discussions from Storm Prediction Center
WW 167 TORNADO AL AR IL IN KY MO MS TN 280245Z - 281000Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 167
NWS Storm Prediction Center Norman OK
945 PM CDT Mon Apr 27 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Far Northwestern Alabama
Far Northeastern Arkansas
Southern Illinois
Far Southwestern Indiana
Western Kentucky
Far Southeastern Missouri
Northern Mississippi
Western and Middle Tennessee
* Effective this Monday night and Tuesday morning from 945 PM
until 500 AM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Widespread damaging wind gusts to 70 mph likely
Scattered large hail events to 1.5 inches in diameter likely
SUMMARY...A line of thunderstorms is expected to continue
eastward/southeastward into the Lower OH and Mid MS Valleys, and
Mid-South over the next few hours. Strong wind gusts and
line-embedded tornadoes are possible within this line. Additional
more discrete storms are possible across northern MS and into far
northwest AL. All severe hazards, including tornadoes, are possible
with any discrete storms.
The tornado watch area is approximately along and 75 statute miles
east and west of a line from 40 miles west northwest of Evansville
IN to 20 miles south of Oxford MS. 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 162...WW 164...WW
165...WW 166...
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 28035.
...Mosier
Read more
WW 166 TORNADO AR 280120Z - 280900Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 166
NWS Storm Prediction Center Norman OK
820 PM CDT Mon Apr 27 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern and Central Arkansas
* Effective this Monday night and Tuesday morning from 820 PM
until 400 AM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging wind gusts to 70 mph likely
Scattered large hail events to 1.5 inches in diameter likely
SUMMARY...Thunderstorm coverage is expected to increase this evening
across northern and central Arkansas. A strongly unstable airmass is
in place, with strong deep-layer vertical shear over the region as
well. The environmental conditions will support the development of
supercells capable of all severe hazards, including large hail and
tornadoes. Strengthening low-level flow over the next few hours
could result in an environment that supports strong to intense
tornadoes.
The tornado watch area is approximately along and 65 statute miles
east and west of a line from 30 miles northeast of Flippin AR to 35
miles south southwest of Little Rock AR. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU6).
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 160...WW 161...WW
162...WW 163...WW 164...WW 165...
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 27035.
...Mosier
Read more
WW 165 SEVERE TSTM IN KY OH 280035Z - 280800Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 165
NWS Storm Prediction Center Norman OK
835 PM EDT Mon Apr 27 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern and Central Indiana
North-Central Kentucky
Far Western Ohio
* Effective this Monday night and Tuesday morning from 835 PM
until 400 AM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Strong to severe thunderstorms capable of damaging gusts
and isolated hail will continue in the vicinity of the Ohio River
across far southern Indiana and north-central Kentucky.
Additionally, the line of storms approaching Indiana from the west
is expected to continue quickly eastward. Damaging gusts are
possible within this line. There is also a low-probability risk for
a brief tornado within the line as it moves eastward across Indiana
and eventually into far western Ohio.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 45 miles northeast of
Lafayette IN to 35 miles southeast of Louisville KY. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
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 160...WW 161...WW
162...WW 163...WW 164...
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
27035.
...Mosier
Read more
WW 160 TORNADO IL MO 271750Z - 280200Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 160
NWS Storm Prediction Center Norman OK
1250 PM CDT Mon Apr 27 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southern Illinois
Eastern and Southern Missouri
* Effective this Monday afternoon and evening from 1250 PM until
900 PM CDT.
* Primary threats include...
Several tornadoes and a couple intense tornadoes likely
Widespread damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail likely with isolated very large hail events
to 2.5 inches in diameter possible
SUMMARY...A remnant boundary left over by overnight/early morning
storms will be an initial focus for intense storm development
including supercells, with additional storms developing later
afternoon across broader parts of the region. All severe weather
hazards all possible, including strong/intense tornadoes.
The tornado watch area is approximately along and 65 statute miles
north and south of a line from 15 miles north of Springfield MO to
45 miles east of Salem IL. For a complete depiction of the watch see
the associated watch outline update (WOUS64 KWNS WOU0).
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 158...WW 159...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 28025.
...Guyer
Read more
WW 0167 Status Updates
STATUS FOR WATCH 0167 HAS NOT BEEN ISSUED YET
Read more
WW 0166 Status Updates
STATUS REPORT ON WW 166
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SE FYV TO
15 W UNO.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0584
..MOORE..04/28/26
ATTN...WFO...LZK...
STATUS REPORT FOR WT 166
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-023-029-045-049-051-059-063-065-067-071-075-083-085-089-
095-097-101-105-113-115-117-119-121-125-127-129-135-137-141-145-
147-149-280340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CLEBURNE CONWAY
FAULKNER FULTON GARLAND
HOT SPRING INDEPENDENCE IZARD
JACKSON JOHNSON LAWRENCE
LOGAN LONOKE MARION
MONROE MONTGOMERY NEWTON
PERRY POLK POPE
PRAIRIE PULASKI RANDOLPH
SALINE SCOTT SEARCY
SHARP STONE VAN BUREN
WHITE WOODRUFF YELL
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 0165 Status Updates
STATUS FOR WATCH 0165 HAS NOT BEEN ISSUED YET
Read more
WW 0164 Status Updates
STATUS REPORT ON WW 164
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE GYI
TO 30 NNE PRX TO 10 ENE HRO.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0585
..MOORE..04/28/26
ATTN...WFO...TSA...SHV...FWD...
STATUS REPORT FOR WS 164
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC061-081-091-133-280340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
HOWARD LITTLE RIVER MILLER
SEVIER
OKC089-280340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
MCCURTAIN
TXC037-063-067-085-113-119-139-147-159-183-203-213-223-231-257-
277-315-343-379-387-397-423-439-449-459-467-499-280340-
TX
. TEXAS COUNTIES INCLUDED ARE
Read more
WW 0163 Status Updates
STATUS REPORT ON WW 163
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S SPI TO
15 WNW DEC TO 25 E BMI.
..LEITMAN..04/28/26
ATTN...WFO...ILX...
STATUS REPORT FOR WT 163
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC019-021-023-025-029-033-035-041-045-049-079-101-115-139-147-
159-173-183-280140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
CHAMPAIGN CHRISTIAN CLARK
CLAY COLES CRAWFORD
CUMBERLAND DOUGLAS EDGAR
EFFINGHAM JASPER LAWRENCE
MACON MOULTRIE PIATT
RICHLAND SHELBY VERMILION
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 0162 Status Updates
STATUS FOR WATCH 0162 HAS NOT BEEN ISSUED YET
Read more
WW 0161 Status Updates
STATUS REPORT ON WW 161
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N FYV TO
30 ESE SGF.
..LEITMAN..04/27/26
ATTN...WFO...TSA...ICT...SGF...EAX...
STATUS REPORT FOR WS 161
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC007-015-280040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BENTON CARROLL
MOC009-209-280040-
MO
. MISSOURI COUNTIES INCLUDED ARE
BARRY STONE
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 0160 Status Updates
STATUS REPORT ON WW 160
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SE UMN TO
20 SSW TBN TO 20 NW TBN TO 30 NNW ALN.
..LEITMAN..04/27/26
ATTN...WFO...LSX...ILX...PAH...SGF...
STATUS REPORT FOR WT 160
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-013-025-027-033-049-051-079-083-101-117-119-121-133-135-
157-159-163-189-280040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND CALHOUN CLAY
CLINTON CRAWFORD EFFINGHAM
FAYETTE JASPER JERSEY
LAWRENCE MACOUPIN MADISON
MARION MONROE MONTGOMERY
RANDOLPH RICHLAND ST. CLAIR
WASHINGTON
MOC043-055-065-067-071-073-091-093-099-123-125-149-153-161-169-
179-183-186-187-189-203-213-215-219-221-229-510-280040-
MO
. MISSOURI COUNTIES INCLUDED ARE
CHRISTIAN CRAWFORD DENT
DOUGLAS FRANKLIN GASCONADE
HOWELL IRON JEFFERSON
MADISON MARIES OREGON
Read more
MD 0586 CONCERNING TORNADO WATCH 162...166... FOR NORTHERN ARKANSAS...SOUTHEAST MISSOURI...AND FAR WESTERN KENTUCKY
Mesoscale Discussion 0586
NWS Storm Prediction Center Norman OK
1009 PM CDT Mon Apr 27 2026
Areas affected...northern Arkansas...southeast Missouri...and far
western Kentucky
Concerning...Tornado Watch 162...166...
Valid 280309Z - 280515Z
The severe weather threat for Tornado Watch 162, 166 continues.
SUMMARY...A transition to a mix of convective modes is ongoing.
While the potential for severe hail may be decreasing, the threat
for tornadoes and severe winds continues.
DISCUSSION...Regional reflectivity data shows gradual upscale growth
across north-central AR as new convection develops along a cold
front. Initially semi-discrete supercells across southern MO have
recently shown some signs of weakening and/or poor organization -
likely the result of being displaced behind an outflow boundary,
which is becoming more apparent in velocity imagery. Further
southwest, convective clusters and semi-discrete supercells continue
to develop across north-central AR.
This activity continues to spread east into a very favorable
environment for organized convection with KLZK and KNQA VWPs now
sampling 0-1 km SRH between 450-500 m2/s2. The loss of discrete
supercells should modulate the potential for very large hail to some
degree, but even with a transition to a mix of convective bands and
embedded supercells, the environment will support the potential for
tornadoes (potentially strong) and swaths of severe winds. Latest
high-res guidance, including recent WoFS ensemble runs, suggest that
the greatest tornado/severe wind threat will reside across northern
AR and southeast MO into adjacent portions of IL, TN, and KY over
the next couple of hours.
..Moore.. 04/28/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PAH...MEG...LZK...
LAT...LON 35589323 35979196 36579075 37248981 37388945 37428916
37348889 37138874 36748881 36338905 36068936 35848966
35589025 35459097 35319285 35329311 35489325 35589323
MOST PROBABLE PEAK TORNADO INTENSITY...140-170 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Read more
MD 0585 CONCERNING SEVERE THUNDERSTORM WATCH 164... FOR NORTH AND NORTHEAST TEXAS
Mesoscale Discussion 0585
NWS Storm Prediction Center Norman OK
0835 PM CDT Mon Apr 27 2026
Areas affected...north and northeast Texas
Concerning...Severe Thunderstorm Watch 164...
Valid 280135Z - 280330Z
The severe weather threat for Severe Thunderstorm Watch 164
continues.
SUMMARY...The threat for severe hail will continue across
north/northeast Texas for the next few hours. Hail sizes may be as
high as 3 inches.
DISCUSSION...Splitting supercells continue to migrate east/northeast
away from the DFW metro area and have recently produced hail ranging
from 1 to 2 inches in diameter. Recent 00 UTC RAOBs from FWD and SHV
both sampled very strong deep-layer wind shear on the order of 50
knots with limited low-level SRH noted in recent KFWS VWP
observations. This kinematic environment favors splitting supercells
(which have been observed) as well as very large hail - possibly as
high as 3 inches based on environmental analogs. No appreciable
change in the thermodynamic or kinematic environment is anticipated
for the next several hours aside from muted diurnal stabilization of
the warm sector boundary layer, so the potential for robust
supercells should persist in the near term.
Additional attempts at deep convection continue to be noted to the
southwest across central TX. Forcing for ascent is more nebulous
with southwestward extent, and the onset of nocturnal cooling should
gradually diminish ascent within the dryline circulation.
Consequently, confidence in sustained/robust convection remains
limited, but trends will need to be monitored for the need for
spatial expansion of WW 164.
..Moore.. 04/28/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...SHV...FWD...
LAT...LON 33179675 33589585 33729525 33689483 33539457 33279443
33109447 32869460 32669491 32289599 32329651 32469681
32709686 33179675
MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN
Read more
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0759 PM CDT Mon Apr 27 2026
Valid 280100Z - 281200Z
...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF
SOUTHEASTERN MISSOURI INTO FAR SOUTHERN ILLINOIS AND WESTERN
KENTUCKY...
...SUMMARY...
Severe storms should continue through tonight with a wind and hail
threat. A few tornadoes may still occur, and a couple of strong
tornadoes remain possible.
...Synopsis...
A negatively tilted 500 mb mid-level trough continues to traverse
the Upper Midwest in tandem with a surface low, supporting a surface
cold front to sweep across the Mid-MS Valley. A persistent elongated
convective system has materialized along the cold front, accompanied
by several embedded and preceding supercells. These storms have a
collective history of severe wind and hail, with some stones
reaching the 2-3 inch diameter range.
Upper 60s to low 70s F surface dewpoints, beneath 8+ C/km mid-level
lapse rates, resides ahead of the cold front/storms, yielding over
3000 J/kg MLCAPE in spots. Meanwhile, strong mid-level flow
associated with a speed max is overspreading an intensifying (45+
kt) southwesterly low-level jet, resulting in 50+ kts of effective
bulk shear and large/curved low-level hodographs with 300-500 m2/s2
effective SRH (per 00Z mesoanalysis and regional VADs). Supercells
have failed to organize and produce tornadoes up to this point.
However, storms along/ahead of the cold front will continue to
advance eastward toward the low-level jet/shear axis. Therefore, an
uptick in tornado activity may still occur early tonight, especially
with any discrete, sustained supercells that can develop. Discrete
storms may also be accompanied by severe hail, with severe wind
gusts likely with continued linear storm modes.
..Squitieri.. 04/28/2026
Read more
|
