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Tornado Warning Sioux Falls 2026-05-17 21:15
Tornado Warning Des Moines 2026-05-17 21:15
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Tornado Warning Omaha / Valley 2026-05-17 21:15
Tornado Warning Sioux Falls 2026-05-17 21:15
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Tornado Warning Sioux Falls 2026-05-17 21:45
Tornado Warning Des Moines 2026-05-17 21:45

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Non Weather Emergency 3 05/17/2026 18:42
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Tornado Warning 0020
Issued by the Omaha / Valley Forecast Office

Action Issued Starts Expiration
New 2026-05-17 20:17:37 2026-05-17 20:17:00 2026-05-17 21:00:00
Cancelled 2026-05-17 20:27:08 2026-05-17 21:00:00
Continued 2026-05-17 20:27:08 2026-05-17 21:00:00
Continued 2026-05-17 20:38:38 2026-05-17 21:00:00
Cancelled 2026-05-17 20:44:53 2026-05-17 21:00:00


Action: New
Issued At: 2026-05-17 20:17:37

924 
WFUS53 KOAX 180117
TOROAX
NEC025-109-131-180200-
/O.NEW.KOAX.TO.W.0020.260518T0117Z-260518T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Omaha/Valley Nebraska
817 PM CDT Sun May 17 2026

The National Weather Service in Omaha has issued a

* Tornado Warning for...
  East central Lancaster County in southeastern Nebraska...
  Northwestern Otoe County in southeastern Nebraska...
  Southeastern Cass County in southeastern Nebraska...

* Until 900 PM CDT.

* At 816 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Bennet, or 13 miles southeast of Lincoln, moving
  northeast at 50 mph.

  HAZARD...Tornado and quarter size hail.

  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...
  Palmyra around 820 PM CDT.
  Avoca around 835 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Weeping Water and Nehawka.

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.

&&

LAT...LON 4072 9658 4099 9601 4075 9587 4072 9589
      4062 9654
TIME...MOT...LOC 0116Z 242DEG 42KT 4069 9648 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Mead


Action: Cancelled
Issued At: 2026-05-17 20:27:08

071 
WWUS53 KOAX 180126
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
826 PM CDT Sun May 17 2026

NEC109-180136-
/O.CAN.KOAX.TO.W.0020.000000T0000Z-260518T0200Z/
Lancaster NE-
826 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR EAST CENTRAL LANCASTER 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 1100 PM CDT for southwestern
Iowa...and southeastern Nebraska.

&&

LAT...LON 4078 9645 4099 9601 4075 9587 4072 9589
      4064 9642
TIME...MOT...LOC 0126Z 243DEG 42KT 4073 9633 

$$

NEC025-131-180200-
/O.CON.KOAX.TO.W.0020.000000T0000Z-260518T0200Z/
Otoe NE-Cass NE-
826 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHWESTERN OTOE AND SOUTHEASTERN CASS COUNTIES...

At 826 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles northeast of Palmyra, or 19 miles east of
Lincoln, moving northeast at 50 mph.

HAZARD...Tornado and quarter size hail.

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...
  Unadilla around 830 PM CDT.
  Avoca around 835 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Weeping Water, Nehawka and Union.

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.

&&

LAT...LON 4078 9645 4099 9601 4075 9587 4072 9589
      4064 9642
TIME...MOT...LOC 0126Z 243DEG 42KT 4073 9633 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Mead


Action: Continued
Issued At: 2026-05-17 20:27:08

071 
WWUS53 KOAX 180126
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
826 PM CDT Sun May 17 2026

NEC109-180136-
/O.CAN.KOAX.TO.W.0020.000000T0000Z-260518T0200Z/
Lancaster NE-
826 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR EAST CENTRAL LANCASTER 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 1100 PM CDT for southwestern
Iowa...and southeastern Nebraska.

&&

LAT...LON 4078 9645 4099 9601 4075 9587 4072 9589
      4064 9642
TIME...MOT...LOC 0126Z 243DEG 42KT 4073 9633 

$$

NEC025-131-180200-
/O.CON.KOAX.TO.W.0020.000000T0000Z-260518T0200Z/
Otoe NE-Cass NE-
826 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHWESTERN OTOE AND SOUTHEASTERN CASS COUNTIES...

At 826 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles northeast of Palmyra, or 19 miles east of
Lincoln, moving northeast at 50 mph.

HAZARD...Tornado and quarter size hail.

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...
  Unadilla around 830 PM CDT.
  Avoca around 835 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Weeping Water, Nehawka and Union.

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.

&&

LAT...LON 4078 9645 4099 9601 4075 9587 4072 9589
      4064 9642
TIME...MOT...LOC 0126Z 243DEG 42KT 4073 9633 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Mead


Action: Continued
Issued At: 2026-05-17 20:38:38

405 
WWUS53 KOAX 180138
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
838 PM CDT Sun May 17 2026

NEC025-131-180200-
/O.CON.KOAX.TO.W.0020.000000T0000Z-260518T0200Z/
Otoe NE-Cass NE-
838 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHWESTERN OTOE AND SOUTHEASTERN CASS COUNTIES...

At 837 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles southwest of Avoca, or 16 miles west of Nebraska
City, moving east at 50 mph.

HAZARD...Tornado and quarter size hail.

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...
  Avoca around 845 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Union and Nehawka.

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.

&&

LAT...LON 4082 9636 4099 9601 4075 9587 4072 9589
      4066 9631
TIME...MOT...LOC 0137Z 249DEG 42KT 4074 9618 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Mead


Action: Cancelled
Issued At: 2026-05-17 20:44:53

662 
WWUS53 KOAX 180144
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
844 PM CDT Sun May 17 2026

NEC025-131-180154-
/O.CAN.KOAX.TO.W.0020.000000T0000Z-260518T0200Z/
Otoe NE-Cass NE-
844 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR NORTHWESTERN OTOE AND SOUTHEASTERN CASS
COUNTIES IS CANCELLED...

The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1100 PM CDT for southwestern
Iowa...and southeastern Nebraska.

&&

LAT...LON 4082 9636 4099 9601 4075 9587 4072 9589
      4066 9631
TIME...MOT...LOC 0141Z 242DEG 42KT 4078 9608 

$$

Mead





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