Tornado Warning 24, NWS Des Moines, IA

Issued

Jun 20, 2018, 3:21 PM CDT (20:21 UTC)

Expired

Jun 20, 2018, 4:00 PM CDT

In force

39 min

Issued by

NWS Des Moines, IA

Area

Storm-based polygon

Tornado

Radar indicated

Hail

0.75 in

Counties Humboldt County, IA, Kossuth County, IA

The Des Moines radar (KDMX), 129 km from the middle of the area, began a volume at 20:24 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

845 
WFUS53 KDMX 202021
TORDMX
IAC091-109-202100-
/O.NEW.KDMX.TO.W.0024.180620T2021Z-180620T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
321 PM CDT WED JUN 20 2018

The National Weather Service in Des Moines  has issued a

* Tornado Warning for...
  Southeastern Kossuth County in north central Iowa...
  Northeastern Humboldt County in north central Iowa...

* Until 400 PM CDT.
    
* At 321 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northeast of Dakota City, moving north at 10
  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
  southeastern Kossuth and northeastern Humboldt Counties, including
  the following locations... Lu Verne, Hardy, St. Joseph and
  Livermore.

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 4279 9400 4276 9415 4296 9428 4301 9399
TIME...MOT...LOC 2021Z 173DEG 10KT 4281 9410 

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

$$

Donavon

949 
WWUS53 KDMX 202042
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
342 PM CDT WED JUN 20 2018

IAC091-109-202100-
/O.CON.KDMX.TO.W.0024.000000T0000Z-180620T2100Z/
Kossuth IA-Humboldt IA-
342 PM CDT WED JUN 20 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
SOUTHEASTERN KOSSUTH AND NORTHEASTERN HUMBOLDT COUNTIES...
    
At 341 PM CDT, a severe thunderstorm capable of producing a tornado
was located 10 miles northeast of Dakota City, moving north at 10
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.

Locations impacted include...
Livermore, Lu Verne, St. Joseph and Hardy. 

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 4282 9401 4280 9416 4296 9428 4301 9399
TIME...MOT...LOC 2041Z 173DEG 10KT 4287 9411 

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

$$

Donavon

275 
WWUS53 KDMX 202059
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
359 PM CDT WED JUN 20 2018

IAC091-109-202108-
/O.EXP.KDMX.TO.W.0024.000000T0000Z-180620T2100Z/
Kossuth IA-Humboldt IA-
359 PM CDT WED JUN 20 2018

...THE TORNADO WARNING FOR SOUTHEASTERN KOSSUTH AND NORTHEASTERN
HUMBOLDT COUNTIES WILL EXPIRE AT 400 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 700 PM CDT for north central
Iowa.

LAT...LON 4282 9401 4280 9416 4296 9428 4301 9399
TIME...MOT...LOC 2058Z 173DEG 10KT 4292 9412 

$$

Donavon

Tornado Warnings in Iowa, 2018Every tornado warning in 2018Tornadoes in 2018

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.