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  Thursday April 23, 2026

RSS Mesoscale Discussions from Storm Prediction Center

SPC Severe Thunderstorm Watch 139

WW 139 SEVERE TSTM IA MO 240200Z - 240500Z
      
WW 0139 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 139
NWS Storm Prediction Center Norman OK
900 PM CDT Thu Apr 23 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southeast Iowa
  Northeast Missouri

* Effective this Thursday night from 900 PM until Midnight CDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1.5 inches in diameter possible
  A tornado or two possible

SUMMARY...A line of thunderstorms over northern Missouri and central
Iowa will track eastward into eastern Iowa this evening, with a
continued risk of locally damaging wind gusts or perhaps a tornado.

The severe thunderstorm watch area is approximately along and 35
statute miles east and west of a line from 65 miles northeast of
Ottumwa IA to 55 miles south southeast of Ottumwa IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).

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 136...WW 137...WW 138...

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
25030.

...Hart

Read more

SPC Severe Thunderstorm Watch 138

WW 138 SEVERE TSTM IA KS MO 232255Z - 240500Z
      
WW 0138 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 138
NWS Storm Prediction Center Norman OK
555 PM CDT Thu Apr 23 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Central Iowa
  Northeast Kansas
  Northwest Missouri

* Effective this Thursday afternoon from 555 PM until Midnight
  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...A line of intense storms extending from northeast Kansas
into central Iowa will track eastward across the watch area through
the evening.  The strongest cells will pose a risk of damaging winds
and hail.  A tornado or two is also possible.

The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 35 miles northeast of
Mason City IA to 50 miles south southeast of Olathe KS. 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 134...WW 135...WW
136...WW 137...

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
25030.

...Hart

Read more

SPC Tornado Watch 137

WW 137 TORNADO OK 232210Z - 240400Z
      
WW 0137 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 137
NWS Storm Prediction Center Norman OK
510 PM CDT Thu Apr 23 2026

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Central Oklahoma

* Effective this Thursday afternoon and evening from 510 PM until
  1100 PM CDT.

* Primary threats include...
  A few tornadoes likely with 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 possible

SUMMARY...Thunderstorms are beginning to develop in north-central
Oklahoma along a dryline/cold front.  Other isolated storms may
develop this evening farther south along the dryline into southwest
Oklahoma.  Supercells capable of very large hail and a few tornadoes
are possible.

The tornado watch area is approximately along and 45 statute miles
east and west of a line from 20 miles north of Ponca City OK to 25
miles east of Fort Sill OK. 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 134...WW 135...WW 136...

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 25030.

...Hart

Read more

SPC Tornado Watch 136

WW 136 TORNADO KS 231905Z - 240200Z
      
WW 0136 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 136
NWS Storm Prediction Center Norman OK
205 PM CDT Thu Apr 23 2026

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Central and Eastern Kansas

* Effective this Thursday afternoon and evening from 205 PM until
  900 PM CDT.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Widespread large hail and isolated very large hail events to 3.5
    inches in diameter likely
  Scattered damaging winds likely with isolated significant gusts
    to 80 mph possible

SUMMARY...Intense storm development is expected initially across
parts of northern/east-central Kansas through late afternoon,
becoming more scattered/widespread into this evening across the
remainder of eastern Kansas. All severe hazards are expected,
including tornadoes, very large hail and damaging winds.

The tornado watch area is approximately along and 60 statute miles
east and west of a line from 65 miles north northeast of Manhattan
KS to 45 miles south southeast of Wichita KS. 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 134...WW 135...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3.5 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 25030.

...Guyer

Read more

SPC Severe Thunderstorm Watch 139 Status Reports

WW 0139 Status Updates
      
WW 0139 Status Image

STATUS FOR WATCH 0139 HAS NOT BEEN ISSUED YET
Read more

SPC Severe Thunderstorm Watch 138 Status Reports

WW 0138 Status Updates
      
WW 0138 Status Image

STATUS REPORT ON WW 138

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE TOP TO
15 ENE FLV TO 20 SSE LWD TO 15 WSW OXV TO 55 SSW LSE.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0511

..MOORE..04/24/26

ATTN...WFO...DMX...ARX...EAX...


STATUS REPORT FOR WS 138 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

IAC007-013-051-099-117-123-125-135-157-171-179-185-240340-

IA 
.    IOWA COUNTIES INCLUDED ARE

APPANOOSE            BLACK HAWK          DAVIS               
JASPER               LUCAS               MAHASKA             
MARION               MONROE              POWESHIEK           
TAMA                 WAPELLO             WAYNE               


KSC091-107-121-209-240340-

KS 
.    KANSAS COUNTIES INCLUDED ARE

JOHNSON              LINN                MIAMI               
WYANDOTTE            


MOC013-025-037-047-049-061-079-095-117-129-171-177-211-240340-

MO 
Read more

SPC Tornado Watch 137 Status Reports

WW 0137 Status Updates
      
WW 0137 Status Image

STATUS FOR WATCH 0137 HAS NOT BEEN ISSUED YET
Read more

SPC Tornado Watch 136 Status Reports

WW 0136 Status Updates
      
WW 0136 Status Image

STATUS REPORT ON WW 136

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE AVK
TO 35 SSW HUT TO 25 E HUT TO 15 WNW EMP TO 15 WSW TOP TO 30 NNW
TOP TO 10 WNW FNB.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0510

..JEWELL..04/24/26

ATTN...WFO...ICT...TOP...


STATUS REPORT FOR WT 136 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC001-003-013-015-017-019-031-035-045-049-059-073-077-079-085-
087-095-111-115-139-173-177-191-197-205-207-240140-

KS 
.    KANSAS COUNTIES INCLUDED ARE

ALLEN                ANDERSON            BROWN               
BUTLER               CHASE               CHAUTAUQUA          
COFFEY               COWLEY              DOUGLAS             
ELK                  FRANKLIN            GREENWOOD           
HARPER               HARVEY              JACKSON             
JEFFERSON            KINGMAN             LYON                
MARION               OSAGE               SEDGWICK            
SHAWNEE              SUMNER              WABAUNSEE           
WILSON               WOODSON             


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

SPC Severe Thunderstorm Watch 135 Status Reports

WW 0135 Status Updates
      
WW 0135 Status Image

STATUS REPORT ON WW 135

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WNW MCW
TO 30 SSE MSP TO 65 SW ASX.

..MOORE..04/24/26

ATTN...WFO...MPX...FSD...ARX...DLH...


STATUS REPORT FOR WS 135 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MNC039-047-049-099-109-147-157-240140-

MN 
.    MINNESOTA COUNTIES INCLUDED ARE

DODGE                FREEBORN            GOODHUE             
MOWER                OLMSTED             STEELE              
WABASHA              


WIC005-033-091-093-109-240140-

WI 
.    WISCONSIN COUNTIES INCLUDED ARE

BARRON               DUNN                PEPIN               
PIERCE               ST. CROIX           


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

SPC Tornado Watch 134 Status Reports

WW 0134 Status Updates
      
WW 0134 Status Image

STATUS REPORT ON WW 134

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSE BIE
TO 25 SW SDA TO 35 E OMA TO 35 ENE DNS TO 15 WNW FOD TO 10 N FRM.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0507

..MOORE..04/23/26

ATTN...WFO...DMX...FSD...OAX...EAX...


STATUS REPORT FOR WT 134 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

IAC009-029-071-073-077-081-091-109-137-145-187-189-197-240040-

IA 
.    IOWA COUNTIES INCLUDED ARE

AUDUBON              CASS                FREMONT             
GREENE               GUTHRIE             HANCOCK             
HUMBOLDT             KOSSUTH             MONTGOMERY          
PAGE                 WEBSTER             WINNEBAGO           
WRIGHT               


MOC005-240040-

MO 
.    MISSOURI COUNTIES INCLUDED ARE

ATCHISON             


NEC127-133-147-240040-

NE 
Read more

SPC MD 513

MD 0513 CONCERNING SEVERE THUNDERSTORM WATCH 138... FOR CENTRAL TO EASTERN IOWA
        
MD 0513 Image

Mesoscale Discussion 0513
NWS Storm Prediction Center Norman OK
0859 PM CDT Thu Apr 23 2026

Areas affected...Central to eastern Iowa

Concerning...Severe Thunderstorm Watch 138...

Valid 240159Z - 240330Z

The severe weather threat for Severe Thunderstorm Watch 138
continues.

SUMMARY...A squall line is beginning to weaken across central Iowa,
but some severe threat may extend downstream into eastern Iowa. A
watch has been issued to address this concern.

DISCUSSION...Lightning counts and vertically integrated liquid
trends continue to decline withing a squall line moving across
central IA. Additionally, KDMX imagery depicts portions of the line
starting to become outflow dominant. However, downstream low-level
wind shear (25-30 knots 0-1 km BWD) remains favorable for localized
bowing segments that may produce embedded circulations and/or swaths
of severe winds. This threat will most likely manifest where ever
the updraft/downdraft convergence zone can remain balanced and
support strong updrafts atop the low-level convergence zone.
Consequently, some localized severe wind and brief tornado threat
may linger downstream into eastern IA over the next few hours where
dewpoints remain in the low 60s and MLCAPE remains near 1000 J/kg.

..Moore.. 04/24/2026

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...DVN...DMX...EAX...

LAT...LON   40649365 41739287 42049259 42139237 42159168 42099103
            41909067 41729060 41459081 40559163 40469265 40479323
            40519355 40649365 

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN

Read more

SPC MD 512

MD 0512 CONCERNING TORNADO WATCH 137... FOR NORTH CENTRAL OKLAHOMA
        
MD 0512 Image

Mesoscale Discussion 0512
NWS Storm Prediction Center Norman OK
0840 PM CDT Thu Apr 23 2026

Areas affected...north central Oklahoma

Concerning...Tornado Watch 137...

Valid 240140Z - 240345Z

The severe weather threat for Tornado Watch 137 continues.

SUMMARY...The risk of tornadoes remains concentrated over
north-central Oklahoma for the next few hours.

DISCUSSION...Supercells have been producing strong tornadoes, most
recently with a lone storm along the dryline and just south of Enid
OK, with others within the complex storm cluster from Kay into Osage
counties. The large CAPE, steep midlevel lapse rate environment
continues to support tremendous updrafts, while the low-level jet
increases in speed, enhancing shear.

Even if storms eventually merge, the strong low-level shear and
ample instability will still favor periodic rotation/tornadoes,
along with damaging winds later this evening.

..Jewell.. 04/24/2026

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...TSA...ICT...OUN...

LAT...LON   36969698 37089628 36939595 36639596 36319638 36219689
            36129787 36199808 36329797 36629775 36969698 

MOST PROBABLE PEAK TORNADO INTENSITY...140-170 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN

Read more

SPC MD 511

MD 0511 CONCERNING SEVERE THUNDERSTORM WATCH 138... FOR IOWA INTO NORTHWEST MISSOURI
MD 0511 Image


Mesoscale Discussion 0511
NWS Storm Prediction Center Norman OK
0741 PM CDT Thu Apr 23 2026

Areas affected...Iowa into northwest Missouri

Concerning...Severe Thunderstorm Watch 138...

Valid 240041Z - 240245Z

The severe weather threat for Severe Thunderstorm Watch 138
continues.

SUMMARY...A severe threat continues across central IA into northwest
Missouri as a squall line continues east. Damaging winds will remain
the primary concern.

DISCUSSION...A squall line continues to progress east across central
IA and northwest MO. Wind observations from along the line have
largely remained in the 40-55 mph range, though pockets of stronger
velocities embedded within the line are apparent in regional radars,
and a gust up to 65 mph was recently observed near Winterset, IA.
Additionally, weak embedded circulations are evident near KDMX in
proximity to the RDA, and are mainly associated with broken portions
of the line where updraft/downdraft convergence zones are more
zonally oriented. KDMX VWP observations recently sampled around 25
knots of southerly 0-1 km bulk shear, which should continue to
support the potential for brief circulations within any broken or
locally bowing section of the line. However, the overall tornado
threat should remain low as MLCAPE begins to degrade with the onset
of nocturnal cooling/stabilization. Additionally, lightning counts
have been declining over the past hour, suggesting that this may be
onset of a weakening trend that has been anticipated by high-res
guidance after 00 UTC. Consequently, the severe threat should wane
further over the next few hours.

..Moore.. 04/24/2026

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...DVN...ARX...DMX...EAX...

LAT...LON   42779205 41739253 41069299 40599336 40169391 39919432
            39769463 39759487 39819507 39919524 40189504 40479478
            41609406 42419358 42909337 43029332 43169295 43249245
            43229212 43109205 42779205 

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN

Read more

SPC Apr 24, 2026 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook
      
Day 1 Outlook Image
Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0759 PM CDT Thu Apr 23 2026

Valid 240100Z - 241200Z

...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS ARTS OF
EASTERN KANSAS AND NORTHERN OKLAHOMA...

...SUMMARY...
Scattered severe thunderstorms will continue this evening from parts
of the southern and central Plains north-northeastward into the
lower Missouri and upper Mississippi Valleys. Tornadoes, large hail
and severe wind gusts are expected.

...Southern and Central Plains...
Latest water vapor imagery shows an upper-level trough over the
Great Plains, with an associated mid-level jet streak moving through
the base of the trough into the southern Plains. At the surface, a
cold front is advancing southeastward across far southeast Nebraska,
east-central Kansas and far northern Oklahoma. Ahead of the front,
multiple line segments are ongoing. These broken lines are embedded
with discrete to semi-discrete supercells. The storms are located
along an axis of moderate to strong instability, with the RAP
showing MLCAPE in the 2500 to 3500 J/kg range. Over the top of this
moist and unstable airmass, flow is westerly around 50 knots. This
is creating moderate to strong deep-layer shear which will continue
to support supercells this evening. Steep mid-level lapse rates
approaching 8 C/km will be favorable for large hail. In addition,
the western edge of a 40 to 50 knot low-level jet will remain in
place over eastern Kansas. WSR-88D VWPs that are sampling the
low-level jet have 0-3 km storm-relative helicity in the 400 to 450
m2/s2 range, which will support a continued tornado threat. In
addition, a threat for wind damage will also continue through the
mid to late evening...see MCD 510.

...Lower Missouri Valley/Upper Mississippi Valley...
Southwesterly mid-level flow is in place over much of the
north-central U.S. At the surface, a cold front is located from
central Minnesota south-southwestward into the mid Missouri Valley.
A line of strong to severe thunderstorms is ongoing ahead of the
front from far southeastern Minnesota into central Iowa and far
northwestern Missouri. Moderate instability is analyzed ahead of the
line, with the RAP showing MLCAPE in the 1500 to 2000 J/kg range.
The thermodynamic environment will continue to be favorable for
isolated large hail. In addition, a 40 to 50 knot jet is analyzed
over east-central Iowa. As the low-level jet strengthens, tornadoes
will be possible with rotating cells embedded in the line. As the
line continues to move eastward through the mid to late evening,
wind damage will be possible with embedded supercells and bowing
line segments.

..Broyles.. 04/24/2026

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