Alert archive / Iowa / Tornado Warnings in 2014

Tornado Warning 16, NWS Des Moines, IA

June 1, 2014Cerro Gordo County, Worth County, Iowa

NWS Des Moines, IA issued this tornado warning at Jun 1, 2014, 2:31 PM CDT for Cerro Gordo County, Worth County, Iowa. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 1, 2014, 2:31 PM CDT (19:31 UTC)
Expired: Jun 1, 2014, 3:00 PM CDT
In force: 29 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

Counties Cerro Gordo County, IA, Worth County, IA

The radar

The La Crosse radar (KARX), 161 km from the middle of the area, began a volume at 19:31 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.

What was reported inside it

Time	Report	Where	Remark
Jun 1, 2:38 PM CDT	TORNADO	3 E Manly, IA	WFO ARX REPORTED UNCONFIRMED TORNADO REPORTS EAST OF MANLY FROM MITCHELL COUNTY EMERGENCY MANAGER. TIME AND DISTANCE EAST OF MANLY BASED ON RADAR ESTIMATE AS REPORTED DISTANCE WAS UNKNOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.5 hours before the alert went out and 176 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 327 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 497 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

194 
WFUS53 KDMX 011931
TORDMX
IAC033-195-012000-
/O.NEW.KDMX.TO.W.0016.140601T1931Z-140601T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
231 PM CDT SUN JUN 1 2014

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN WORTH COUNTY IN NORTH CENTRAL IOWA...
  NORTHEASTERN CERRO GORDO COUNTY IN NORTH CENTRAL IOWA...

* UNTIL 300 PM CDT

* AT 230 PM CDT...A CONFIRMED TORNADO WAS LOCATED 7 MILES EAST OF
  MANLY...OR 10 MILES NORTHEAST OF MASON CITY...MOVING NORTHEAST AT
  35 MPH.

  HAZARD...DAMAGING TORNADO. 

  SOURCE...EMERGENCY MANAGEMENT CONFIRMED TORNADO. 

  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...
  NORA SPRINGS...PLYMOUTH...GRAFTON...ROCK FALLS AND BOLAN. 

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 IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4346 9302 4313 9303 4312 9304 4324 9322
      4347 9303
TIME...MOT...LOC 1930Z 212DEG 28KT 4326 9306 

TORNADO...OBSERVED
HAIL...<.75IN

$$

REV

2 follow-up statements

962 
WWUS53 KDMX 011943
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
243 PM CDT SUN JUN 1 2014

IAC033-195-012000-
/O.CON.KDMX.TO.W.0016.000000T0000Z-140601T2000Z/
WORTH IA-CERRO GORDO IA-
243 PM CDT SUN JUN 1 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR
SOUTHEASTERN WORTH AND NORTHEASTERN CERRO GORDO COUNTIES...
    
AT 242 PM CDT...A CONFIRMED TORNADO WAS LOCATED 4 MILES SOUTHWEST OF
ST. ANSGAR...OR 9 MILES NORTHWEST OF OSAGE...MOVING NORTHEAST AT 30
MPH.

HAZARD...DAMAGING TORNADO. 

SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO. A TORNADO WAS REPORTED 
JUST EAST OF MANLY IN WORTH COUNTY ALONG HIGHWAY 9 AT 239 PM CDT.

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...
NORA SPRINGS...PLYMOUTH...GRAFTON...ROCK FALLS AND BOLAN. 

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 IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL AUTHORITY WHO WILL SEND YOUR
REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE PATH OF DANGEROUS
WEATHER.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
DES MOINES .

&&

LAT...LON 4346 9302 4313 9303 4312 9304 4324 9322
      4347 9303
TIME...MOT...LOC 1942Z 212DEG 28KT 4334 9299 

TORNADO...OBSERVED
HAIL...<.75IN

$$

REV

425 
WWUS53 KDMX 012000
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
300 PM CDT SUN JUN 1 2014

IAC033-195-012010-
/O.EXP.KDMX.TO.W.0016.000000T0000Z-140601T2000Z/
WORTH IA-CERRO GORDO IA-
300 PM CDT SUN JUN 1 2014

...THE TORNADO WARNING FOR SOUTHEASTERN WORTH AND NORTHEASTERN CERRO
GORDO COUNTIES HAS EXPIRED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.  HOWEVER HEAVY RAIN
IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4346 9302 4313 9303 4312 9304 4324 9322
      4347 9303
TIME...MOT...LOC 1958Z 212DEG 28KT 4334 9299 

$$

REV

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 1, 12:45 PM CDT	Special Weather Statement	DMX	Bremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 7 more	2 hr
Jun 1, 12:51 PM CDT	Tornado Warning	DMX	Winnebago	24 min
Jun 1, 1:31 PM CDT	Tornado Warning Tornado observed	DMX	Hancock, Kossuth, Winnebago	29 min
Jun 1, 1:49 PM CDT	Tornado Warning	DMX	Worth	26 min
Jun 1, 2:46 PM CDT	Flash Flood Warning	DMX	Kossuth, Palo Alto	6 hr
Jun 1, 2:57 PM CDT	Flash Flood Watch	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Pocahontas and 2 more	8 hr
Jun 1, 5:13 PM CDT	Severe Thunderstorm Warning	DMX	Sac	47 min
Jun 1, 5:49 PM CDT	Special Weather Statement	DMX	Audubon, Cass	56 min
Jun 1, 6:04 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun	41 min
Jun 1, 6:25 PM CDT	Special Weather Statement	DMX	Adair, Cass, Greene, Guthrie	35 min

Nearby

Tornado Warnings in Iowa, 2014 Every tornado warning in 2014 Tornadoes in 2014

Sources

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