Tornado Warning 37, NWS Des Moines, IA

637 
WWUS53 KDMX 212012
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
312 PM CDT Tue May 21 2024

IAC173-212022-
/O.CAN.KDMX.TO.W.0037.000000T0000Z-240521T2100Z/
Taylor IA-
312 PM CDT Tue May 21 2024

...THE TORNADO WARNING FOR NORTHWESTERN TAYLOR COUNTY IS CANCELLED...

The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CDT for south central
and southwestern Iowa.

LAT...LON 4132 9439 4115 9414 4093 9480 4101 9489
TIME...MOT...LOC 2012Z 237DEG 49KT 4099 9476 

$$

IAC001-003-121-175-212100-
/O.CON.KDMX.TO.W.0037.000000T0000Z-240521T2100Z/
Madison IA-Union IA-Adams IA-Adair IA-
312 PM CDT Tue May 21 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
SOUTHWESTERN MADISON...NORTHWESTERN UNION...CENTRAL ADAMS AND
SOUTHEASTERN ADAIR COUNTIES...

At 312 PM CDT, a confirmed tornado was located over Corning Municipal
Airport, or over Corning, moving northeast at 55 mph.

HAZARD...Damaging tornado and half dollar size hail.

SOURCE...Radar confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornado will be near...
  Corning, Lake Icaria, Prescott, Lake Icaria State Park, and 
  Corning Municipal Airport around 315 PM CDT.
  Green Valley Lake and Green Valley Lake State Park around 330 PM 
  CDT.
  Orient around 335 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Orient, Green Valley Lake State Park, Lake Icaria State Park, Corning
Municipal Airport, Carbon, Prescott, and Cromwell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4132 9439 4115 9414 4093 9480 4101 9489
TIME...MOT...LOC 2012Z 237DEG 49KT 4099 9476 

TORNADO...OBSERVED
MAX HAIL SIZE...1.25 IN

$$

Curtis

777 
WWUS53 KDMX 212021
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
321 PM CDT Tue May 21 2024

IAC121-212030-
/O.CAN.KDMX.TO.W.0037.000000T0000Z-240521T2100Z/
Madison IA-
321 PM CDT Tue May 21 2024

...THE TORNADO WARNING FOR SOUTHWESTERN MADISON COUNTY IS
CANCELLED...

The tornadic thunderstorm which prompted the warning has  moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CDT for south central
and southwestern Iowa.

LAT...LON 4108 9477 4132 9439 4122 9424 4120 9424
      4100 9468
TIME...MOT...LOC 2020Z 237DEG 49KT 4105 9463 

$$

IAC001-003-175-212100-
/O.CON.KDMX.TO.W.0037.000000T0000Z-240521T2100Z/
Union IA-Adams IA-Adair IA-
321 PM CDT Tue May 21 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHWESTERN UNION...NORTHEASTERN ADAMS AND SOUTHEASTERN ADAIR
COUNTIES...

At 320 PM CDT, a confirmed large and extremely dangerous tornado was
located over Prescott, or 7 miles northeast of Corning, moving
northeast at 55 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible.

The tornado will be near...
  Orient around 335 PM CDT.

Other locations impacted by this tornadic thunderstorm include Orient
and Lake Icaria State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, TAKE COVER NOW! Move
to a basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4108 9477 4132 9439 4122 9424 4120 9424
      4100 9468
TIME...MOT...LOC 2020Z 237DEG 49KT 4105 9463 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...1.25 IN

$$

Curtis

522 
WWUS53 KDMX 212045
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
345 PM CDT Tue May 21 2024

IAC001-003-175-212100-
/O.CON.KDMX.TO.W.0037.000000T0000Z-240521T2100Z/
Union IA-Adams IA-Adair IA-
345 PM CDT Tue May 21 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHWESTERN UNION...NORTHEASTERN ADAMS AND SOUTHEASTERN ADAIR
COUNTIES...

At 345 PM CDT, a confirmed tornado was located near Macksburg, or 11
miles southeast of Greenfield, moving northeast at 55 mph.

HAZARD...Damaging tornado and half dollar size hail.

SOURCE...Radar confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Union, northeastern Adams and southeastern Adair
Counties, including the following locations... Orient.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4132 9439 4122 9424 4120 9424 4109 9448
      4121 9457
TIME...MOT...LOC 2045Z 237DEG 49KT 4124 9425 

TORNADO...OBSERVED
MAX HAIL SIZE...1.25 IN

$$

Curtis

Area Forecast Discussion
National Weather Service Des Moines IA
142 PM CDT Tue May 21 2024

.KEY MESSAGES...
- Take action for ALL weather warnings this afternoon with
  tornadoes, damaging wind gusts, and large hail all possible
- Renewed or prolonged flooding possible with rain that falls
  this afternoon with rivers rising

&&

.DISCUSSION...
Issued at 142 PM CDT Tue May 21 2024

Already one round of heavy rainfall moved through the state last
night with 3 to 5 inches of rainfall in some areas with isolated
higher amounts that led to flash flooding. Severe storms also moved
over southern and parts of central Iowa in the morning hours. As a
shortwave trough lifts northeastward and negatively tilts this
afternoon, latest Warn on Forecast System (WoFS) is showing
good airmass recovery with dewpoints rising 5 or so degrees
ahead of a surface triple point. Low level kinematics are
already strong and mid-levels are increasing as well. As the
airmass recovers, WoFS shows strong instability with MLCAPE
growing above 1500 J/kg and very favorable 0-500m and 0-1km SRH
ahead of it as well. Hodographs show a bit more linear
depiction, but initially they may be able to remain curved in
the low levels. Therefore, concern and confidence remain high of
rotating storms capable of tornadoes, including a few strong
given the Particularly Dangerous Situation Tornado Watch issued
earlier, damaging wind gusts including the potential of a few
intense wind gusts (greater than 75 mph), and large hail larger
than golf ball size. The hail size can be greater with rotating
storms as hailstones recycle in the updraft. Rainfall with
these storms of 1 to 2 inches will be possible and could cause
new flash flooding or prolong or renew flooding with rivers
rising as well from the recent and future rainfall. Storms will
move quickly through our area this afternoon and be largely east
of a Waterloo to Ottumwa line by around 7pm

As we move into this evening, we will enter a several day period of
drier conditions, which will be welcome for saturated soils and
swollen streams. While river flooding will be peaking mid to
late this week, no substantial rainfall is forecast until
Thursday night into Friday. This is when the next shortwave
trough will approach and pass north of the region and bring
thunderstorms through the state. The timing may mitigate a wider
severe risk, but instability and shear may be sufficient for a
few strong to severe storms.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1235 PM CDT Tue May 21 2024

Main concern is severe thunderstorms that may have large hail
and damaging wind gusts this afternoon. TEMPO lines are for best
timing of storms with impacts that may need more limited as the
storms move through than currently shown. Winds are gusty from
the southeast early this afternoon, but will stay gusty as they
become from the northwest behind the storms. A return to VFR
conditions is forecast into tonight.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
Flood Watch until 7 PM CDT this evening for IAZ004>007-015>017-
023>028-033>039-044>050-057>062-070>075-081>083-092.

&&

DISCUSSION...Ansorge
AVIATION...Ansorge

Hazardous Weather Outlook
National Weather Service Des Moines IA
215 PM CDT Tue May 21 2024

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-221915-
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-
215 PM CDT Tue May 21 2024

This Hazardous Weather Outlook is for portions of central Iowa,
north central Iowa, northeast Iowa, northwest Iowa, south central
Iowa, southeast Iowa, southwest Iowa, and west central Iowa.

.DAY ONE...This Afternoon and Tonight

A cold front that will be moving eastward across the state of Iowa
to generate a line of strong-severe storms during the afternoon
and evening hours with tornadoes, damaging winds, flash flooding,
and large hail all possible with the strongest storms. The worst
of the storms will be primarily during the 3 pm to 9 pm timeframe.
Winds could gust over 40 mph at times this evening as the storms
move off to the east.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Additional thunderstorm chances return at times Friday and
through the weekend. The severe weather potential for these days
will be better determined in the coming days.

.SPOTTER INFORMATION STATEMENT...

Preliminary Local Storm Report
National Weather Service Des Moines IA
214 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0147 PM     Flood            3 E Colfax              41.69N 93.18W
05/21/2024                   Jasper             IA   Public

            Report from mPING of River/Creek
            overflowing. Cropland/Yard/Basement
            Flooding.

&&

AB

Preliminary Local Storm Report
National Weather Service Des Moines IA
220 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0719 AM     Tstm Wnd Dmg     Lewis                   41.31N 95.08W
05/21/2024                   Cass               IA   Emergency Mngr

            Numerous power poles and branches down
            throughout town. Time estimated. Delayed
            report.

&&

Preliminary Local Storm Report
National Weather Service Des Moines IA
230 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0228 PM     Flood            4 N Brooklyn            41.79N 92.45W
05/21/2024                   Poweshiek          IA   Emergency Mngr

            Approximately 10 secondary road closures due
            to water over the road primarily across
            northern parts of the county?.

&&

JAZ

Preliminary Local Storm Report
National Weather Service Des Moines IA
242 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0229 PM     Tstm Wnd Dmg     Schaller                42.50N 95.29W
05/21/2024                   Sac                IA   Public

            Report from mPING: 1-inch tree limbs broken;
            Shingles blown off.

&&

AB

Preliminary Local Storm Report
National Weather Service Des Moines IA
252 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0244 PM     Flood            3 NW Dunkerton          42.60N 92.20W
05/21/2024                   Black Hawk         IA   Public

            Report from mPING of River/Creek
            overflowing. Cropland/Yard/Basement
            Flooding.

&&

AB

Preliminary Local Storm Report
National Weather Service Des Moines IA
307 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0905 AM     Tstm Wnd Dmg     2 SW Clive              41.58N 93.80W
05/21/2024                   Dallas             IA   Public

            Large tree limb down. Time estimated from
            nearly KDSM wind gust observation.

&&

MP