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Tornado Warning 0034
Issued by the Des Moines Forecast Office

Action Issued Starts Expiration
New 2026-05-17 20:35:38 2026-05-17 20:35:00 2026-05-17 21:15:00
Continued 2026-05-17 20:53:39 2026-05-17 21:15:00


Action: New
Issued At: 2026-05-17 20:35:38

356 
WFUS53 KDMX 180135
TORDMX
IAC025-151-161-180215-
/O.NEW.KDMX.TO.W.0034.260518T0135Z-260518T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
835 PM CDT Sun May 17 2026

The National Weather Service in Des Moines has issued a

* Tornado Warning for...
  Southern Pocahontas County in northwestern Iowa...
  Northern Sac County in west central Iowa...
  Northern Calhoun County in west central Iowa...

* Until 915 PM CDT.

* At 834 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Early, or 10 miles west of Sac City, moving east
  at 55 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  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 dangerous storm will be near...
  Sac City, Early, and Nemaha around 840 PM CDT.
  Pomeroy and Jolley around 900 PM CDT.
  North Twin Lake, Twin Lakes, and Twin Lakes State Park around 905 
  PM CDT.
  Manson around 910 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Palmer, Lytton, Twin Lakes, Twin Lakes State Park, Sac City Municipal
Airport, Nemaha, Pomeroy, Early, Schaller, and Jolley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4256 9519 4256 9492 4264 9492 4274 9455
      4244 9447 4233 9532 4247 9532 4248 9534
      4252 9534
TIME...MOT...LOC 0134Z 254DEG 47KT 4244 9520 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Donavon


Action: Continued
Issued At: 2026-05-17 20:53:39

817 
WWUS53 KDMX 180153
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
853 PM CDT Sun May 17 2026

IAC025-151-161-180215-
/O.CON.KDMX.TO.W.0034.000000T0000Z-260518T0215Z/
Pocahontas IA-Sac IA-Calhoun IA-
853 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR SOUTHERN
POCAHONTAS...NORTHEASTERN SAC AND NORTHERN CALHOUN COUNTIES...

At 852 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles north of Lytton, or 7 miles northeast of Sac
City, moving east at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

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 dangerous storm will be near...
  Pomeroy and Jolley around 900 PM CDT.
  North Twin Lake, Twin Lakes, and Twin Lakes State Park around 905 
  PM CDT.
  Manson around 910 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Palmer, Lytton, Twin Lakes, Twin Lakes State Park, Sac City Municipal
Airport, Nemaha, Pomeroy, Jolley, and Fonda.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4256 9511 4256 9492 4264 9492 4274 9455
      4244 9447 4236 9505
TIME...MOT...LOC 0152Z 255DEG 45KT 4249 9490 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Donavon





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