Alert archive / Iowa / Tornado Warnings in 2019

Tornado Warning 9, NWS Des Moines, IA

May 29, 2019Wright County, Iowa

NWS Des Moines, IA issued this tornado warning at May 29, 2019, 7:45 PM CDT for Wright County, Iowa. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 29, 2019, 7:45 PM CDT (00:45 UTC)
Expired: May 29, 2019, 8:15 PM CDT
In force: 30 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Wright County, IA

The radar

The Des Moines radar (KDMX), 107 km from the middle of the area, began a volume at 00:46 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.8 hours before the alert went out and 240 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1948 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

960 
WFUS53 KDMX 300045
TORDMX
IAC197-300115-
/O.NEW.KDMX.TO.W.0009.190530T0045Z-190530T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
745 PM CDT Wed May 29 2019

The National Weather Service in Des Moines  has issued a

* Tornado Warning for...
  Southeastern Wright County in north central Iowa...

* Until 815 PM CDT.
    
* At 744 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Big Wall Lake, or near Clarion, moving northeast
  at 20 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...
  Galt.

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 4270 9353 4263 9365 4265 9370 4276 9365
TIME...MOT...LOC 0044Z 210DEG 16KT 4267 9366 

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

$$

Krull

1 follow-up statement

144 
WWUS53 KDMX 300103
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
803 PM CDT Wed May 29 2019

IAC197-300115-
/O.CON.KDMX.TO.W.0009.000000T0000Z-190530T0115Z/
Wright IA-
803 PM CDT Wed May 29 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EAST
CENTRAL WRIGHT COUNTY...
    
At 803 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Elm Lake, or near Clarion, moving northeast at 15
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...
Galt.

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 4271 9356 4269 9359 4270 9365 4275 9364
TIME...MOT...LOC 0103Z 214DEG 14KT 4272 9360 

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

$$

Krull

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:06 PM CDT	Tornado Warning Tornado observed	DMX	Poweshiek	24 min
May 29, 7:28 PM CDT	Tornado Warning	DMX	Poweshiek	17 min
May 29, 7:48 PM CDT	Tornado Warning Tornado observed	DMX	Hardin	27 min
May 29, 7:53 PM CDT	Tornado Warning	DMX	Grundy, Hardin, Marshall	37 min
May 29, 8:02 PM CDT	Tornado Warning	DMX	Cerro Gordo, Franklin, Hancock, Wright	28 min
May 29, 8:20 PM CDT	Tornado Warning	DMX	Grundy, Hardin	40 min
May 29, 8:29 PM CDT	Tornado Warning	DMX	Hardin	16 min
May 29, 8:42 PM CDT	Tornado Warning Tornado observed	DMX	Franklin, Grundy, Hardin	48 min
May 29, 9:13 PM CDT	Tornado Warning Tornado observed	DMX	Butler, Franklin	32 min
May 29, 10:22 PM CDT	Special Weather Statement	DMX	Bremer	53 min
May 29, 10:30 PM CDT	Severe Thunderstorm Warning	DMX	Bremer	30 min

Nearby

Tornado Warnings in Iowa, 2019 Every tornado warning in 2019 Tornadoes in 2019

Sources

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.