259 
WFUS53 KDMX 180319
TORDMX
IAC033-180345-
/O.NEW.KDMX.TO.W.0045.260518T0319Z-260518T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
1019 PM CDT Sun May 17 2026

The National Weather Service in Des Moines has issued a

* Tornado Warning for...
  Eastern Cerro Gordo County in north central Iowa...

* Until 1045 PM CDT.

* At 1019 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Burchinal, or 7 miles south of Mason 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 tornadic thunderstorm will remain over mainly rural areas of
  eastern Cerro Gordo County, including the following locations...
  Rock Falls, Burchinal, Portland, and Swaledale.

This includes Interstate 35 between mile markers 189 and 193.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4300 9302 4297 9332 4313 9336 4324 9303
TIME...MOT...LOC 0319Z 257DEG 48KT 4304 9322 

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

$$

Donavon

345 
WWUS53 KDMX 180327
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
1027 PM CDT Sun May 17 2026

IAC033-180345-
/O.CON.KDMX.TO.W.0045.000000T0000Z-260518T0345Z/
Cerro Gordo IA-
1027 PM CDT Sun May 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR EASTERN
CERRO GORDO COUNTY...

At 1026 PM CDT, a confirmed tornado was located near Portland, or 7
miles southeast of Mason City, moving east at 55 mph.

HAZARD...Damaging tornado.

SOURCE...Emergency management confirmed tornado north of Rockwell 
         and just south of Mason City moving northeast.

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...
Mason City, Nora Springs, Rockwell, Swaledale, Rock Falls, Burchinal,
and Portland.

This includes Interstate 35 between mile markers 189 and 193.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4300 9302 4297 9332 4313 9336 4324 9303
TIME...MOT...LOC 0326Z 255DEG 47KT 4307 9309 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

Donavon

643 
WWUS53 KDMX 180340
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
1040 PM CDT Sun May 17 2026

IAC033-180350-
/O.EXP.KDMX.TO.W.0045.000000T0000Z-260518T0345Z/
Cerro Gordo IA-
1040 PM CDT Sun May 17 2026

...THE TORNADO WARNING FOR EASTERN CERRO GORDO COUNTY WILL EXPIRE AT
1045 PM CDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However, gusty
winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 100 AM CDT for north central
Iowa.

Remember, a Severe Thunderstorm Warning still remains in effect for
the area for damaging winds.

LAT...LON 4300 9302 4297 9332 4313 9336 4324 9303
TIME...MOT...LOC 0340Z 251DEG 45KT 4314 9294 

$$

Donavon