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Tornado Warning 0023
Issued by the Omaha / Valley Forecast Office

Action Issued Starts Expiration
New 2026-05-17 21:06:39 2026-05-17 21:06:00 2026-05-17 21:45:00
Continued 2026-05-17 21:19:39 2026-05-17 21:45:00
Cancelled 2026-05-17 21:19:39 2026-05-17 21:45:00
Expired 2026-05-17 21:36:40 2026-05-17 21:45:00


Action: New
Issued At: 2026-05-17 21:06:39

222 
WFUS53 KOAX 180206
TOROAX
IAC129-137-155-180245-
/O.NEW.KOAX.TO.W.0023.260518T0206Z-260518T0245Z/

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

The National Weather Service in Omaha has issued a

* Tornado Warning for...
  Northwestern Montgomery County in southwestern Iowa...
  Northeastern Mills County in southwestern Iowa...
  Southeastern Pottawattamie County in southwestern Iowa...

* Until 945 PM CDT.

* At 906 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 3 miles east of Silver City, or 17 miles southeast of
  Council Bluffs, moving northeast at 55 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation. This storm has a history of 
           producing a tornado near Plattsmouth.

  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.

* Locations impacted include...
  Carson, Macedonia, Silver City, Henderson, Old Town Park, and Farm
  Creek Public Wildlife Area.

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 4116 9516 4103 9562 4111 9569 4139 9515
TIME...MOT...LOC 0206Z 244DEG 49KT 4110 9557 

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

$$

BLB


Action: Continued
Issued At: 2026-05-17 21:19:39

645 
WWUS53 KOAX 180219
SVSOAX

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

IAC129-180229-
/O.CAN.KOAX.TO.W.0023.000000T0000Z-260518T0245Z/
Mills IA-
919 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR NORTHEASTERN MILLS 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.

&&

LAT...LON 4116 9517 4110 9536 4110 9538 4116 9538
      4126 9516 4116 9516
TIME...MOT...LOC 0219Z 254DEG 45KT 4113 9535 

$$

IAC137-155-180245-
/O.CON.KOAX.TO.W.0023.000000T0000Z-260518T0245Z/
Montgomery IA-Pottawattamie IA-
919 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHWESTERN MONTGOMERY AND SOUTHEASTERN POTTAWATTAMIE COUNTIES...

At 919 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles east of Henderson, or 10 miles northwest of Red
Oak, 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Montgomery and southeastern Pottawattamie Counties.

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 4116 9517 4110 9536 4110 9538 4116 9538
      4126 9516 4116 9516
TIME...MOT...LOC 0219Z 254DEG 45KT 4113 9535 

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

$$

McCoy


Action: Cancelled
Issued At: 2026-05-17 21:19:39

645 
WWUS53 KOAX 180219
SVSOAX

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

IAC129-180229-
/O.CAN.KOAX.TO.W.0023.000000T0000Z-260518T0245Z/
Mills IA-
919 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR NORTHEASTERN MILLS 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.

&&

LAT...LON 4116 9517 4110 9536 4110 9538 4116 9538
      4126 9516 4116 9516
TIME...MOT...LOC 0219Z 254DEG 45KT 4113 9535 

$$

IAC137-155-180245-
/O.CON.KOAX.TO.W.0023.000000T0000Z-260518T0245Z/
Montgomery IA-Pottawattamie IA-
919 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHWESTERN MONTGOMERY AND SOUTHEASTERN POTTAWATTAMIE COUNTIES...

At 919 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles east of Henderson, or 10 miles northwest of Red
Oak, 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Montgomery and southeastern Pottawattamie Counties.

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 4116 9517 4110 9536 4110 9538 4116 9538
      4126 9516 4116 9516
TIME...MOT...LOC 0219Z 254DEG 45KT 4113 9535 

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

$$

McCoy


Action: Expired
Issued At: 2026-05-17 21:36:40

009 
WWUS53 KOAX 180236
SVSOAX

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

IAC137-155-180246-
/O.EXP.KOAX.TO.W.0023.000000T0000Z-260518T0245Z/
Montgomery IA-Pottawattamie IA-
936 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR NORTHWESTERN MONTGOMERY AND SOUTHEASTERN
POTTAWATTAMIE COUNTIES WILL EXPIRE AT 945 PM CDT...

The storm which prompted the warning has exited the warned area. 
Therefore, the warning will be allowed to expire.

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

&&

LAT...LON 4116 9517 4110 9536 4110 9538 4116 9538
      4126 9516 4116 9516
TIME...MOT...LOC 0236Z 244DEG 49KT 4122 9510 

$$

McCoy





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