Severe Thunderstorm Warning 101, NWS Des Moines, IA

540 
WWUS53 KDMX 232039
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
339 PM CDT Thu Apr 23 2026

IAC047-232115-
/O.CON.KDMX.SV.W.0101.000000T0000Z-260423T2115Z/
Crawford IA-
339 PM CDT Thu Apr 23 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR CRAWFORD COUNTY...

At 338 PM CDT, a severe thunderstorm was located over Dow City, or 10
miles southwest of Denison, moving northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Trained weather spotters.  Quarter sized hail was reported 
         in Dunlop with this storm. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Denison, Dunlap, Schleswig, Dow City, Charter Oak, Kiron, Deloit,
Ricketts, Arion, Buck Grove, and Denison Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CDT for west central
Iowa.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4215 9567 4221 9550 4221 9532 4199 9517
      4186 9537 4186 9567
TIME...MOT...LOC 2038Z 220DEG 39KT 4190 9549 

HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Fowle

821 
WWUS53 KDMX 232049
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
349 PM CDT Thu Apr 23 2026

IAC047-232115-
/O.CON.KDMX.SV.W.0101.000000T0000Z-260423T2115Z/
Crawford IA-
349 PM CDT Thu Apr 23 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR CENTRAL CRAWFORD COUNTY...

At 349 PM CDT, a severe thunderstorm was located over Denison
Municipal Airport, or near Denison, moving northeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Denison, Dunlap, Schleswig, Dow City, Kiron, Deloit, Arion, Buck
Grove, and Denison Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CDT for west central
Iowa.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4208 9552 4221 9544 4221 9532 4199 9517
      4186 9537 4186 9565
TIME...MOT...LOC 2049Z 223DEG 26KT 4196 9541 

HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Fowle

Area Forecast Discussion
National Weather Service Des Moines IA
207 PM CDT Thu Apr 23 2026

.KEY MESSAGES...

- A line of severe storms will move across Iowa late afternoon
  and evening. A few non-severe showers and storms possible
  ahead of the main line. The line of storms will have wind as
  the primary hazard, though tornadoes and hail are possible.

- Cooler Friday through the weekend. Multiple rounds of showers
  and thunderstorms possible this weekend and early next week.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 207 PM CDT Thu Apr 23 2026

A few spotty showers have developed in the moist plume extending
into Iowa, though have been fairly sort lived with little mechanism
to sustain development. Meanwhile, convection has fired along and
just ahead of the cold front pushing across Nebraska and into
western Iowa. This will push across Iowa this evening, reaching the
I-35 corridor around 7-9pm and pushing east after midnight. There
was some concern that prefrontal convection would prevent more
robust development with the main line of storms. While this has not
yet materialized, the widespread stratus has put a bit of a damper
on instability. There is little DCAPE out there and with moist
soundings through the low levels, that may prevent better cold pool
development except in northern Iowa where there is drier air in
place. This would impact wind potential with the line as it blows
through. A pool of 2500+ J/kg SBCAPE is in place across western to
central Iowa with the Creston sounding showing 1900+ ECAPE as some
may not be realized due to entrainment. Shear is largely parallel to
the boundary. This could limit some of the tornado threat unless a
bowing section can take better advantage of line normal shear.
Tornado threat would be highest with initial convection that is
more likely to be surface based, along with the low LCLs around
500m. Hail concerns will also be greatest with initial discrete
convection when lapse rates are steeper around 7-8 C/km. As the
line grows upscale with column moistening and pushes east later
this evening threats will start to diminish.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
Issued at 207 PM CDT Thu Apr 23 2026

Relatively cooler conditions settle in Friday through the weekend
and much of the upcoming week. While cooler that recent days,
average highs this tie of year are in the mid 60s, so temperatures
will be closer to what is "typical" for this time of year. The
pattern remains active This weekend and next week as several
embedded shortwave eject east from a longwave trough parked across
Alberta and Saskatchewan. The first is rather weak and may skim the
area on Saturday. Then a more robust wave lifts out of Missouri
towards the area on Sunday. This will interact with the main
longwave trough finally digging east Sunday into Monday. As this
interacts with the system lifting out of Missouri thunderstorms
are expected into Iowa. Placement of the warm sector will
impact severe threats into Iowa and will be better determined in
the next few days.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1234 PM CDT Thu Apr 23 2026

MVFR stratus is in place across the area as the atmosphere
saturates today. Scattered showers and thunderstorms are
expected to develop north and east this afternoon ahead of a
line of severe storms set to push across the state later this
afternoon and evening. Periods of IFR conditions are possible as
this primary line pushes thorugh. Behind the line winds shift
to out of the northwest. Conditions improve back to VFR
overnight and on Friday morning.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
None.

&&

SHORT TERM...Hagenhoff
LONG TERM...Hagenhoff
AVIATION...Hagenhoff

Hazardous Weather Outlook
National Weather Service Des Moines IA
444 AM CDT Thu Apr 23 2026

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-240945-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
444 AM CDT Thu Apr 23 2026

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

There is a Slight Risk (level 2 of 5) for severe weather over most
of Iowa. Damaging wind is the main threat. Tornadoes and large
hail will also be possible, mainly early in the event in western
and southwestern Iowa, with the threat diminishing and storms move
east. Locally heavy rainfall and ponding may also occur.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Additional thunderstorms possible Sunday night into Monday. There
is a Slight Risk for severe weather Monday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed Thursday into Thursday night.