Alert archive / Iowa / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 222, NWS Des Moines, IA

June 28, 2017Ringgold County, Taylor County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 28, 2017, 8:38 PM CDT for Ringgold County, Taylor County, Iowa. It was in force for 40 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 28, 2017, 8:38 PM CDT (01:38 UTC)
Expired: Jun 28, 2017, 9:18 PM CDT
In force: 40 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Ringgold County, IA, Taylor County, IA

The radar

The Des Moines radar (KDMX), 130 km from the middle of the area, began a volume at 01:38 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 28, 8:50 PM CDT	HAIL 1.25	5 Wnw Maloy, IA

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 28, 2:53 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.6 hours before the alert went out and 173 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: 701 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 2135 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

271 
WUUS53 KDMX 290138
SVRDMX
IAC159-173-290230-
/O.NEW.KDMX.SV.W.0222.170629T0138Z-170629T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
838 PM CDT WED JUN 28 2017

The National Weather Service in Des Moines  has issued a

* Severe Thunderstorm Warning for...
  Ringgold County in south central Iowa...
  Eastern Taylor County in southwestern Iowa...

* Until 930 PM CDT.

* At 838 PM CDT, a severe thunderstorm was located near Bedford,
  moving northeast at 40 mph.

  HAZARD...60 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Mount Ayr, Bedford, Clearfield, Diagonal, Blockton, Gravity,
  Sharpsburg, Redding, Shannon City, Conway, Benton, Maloy, Delphos,
  Athelstan, Lake Of Three Fires State Park, Bedford Municipal
  Airport and Mt Ayr Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 1000 PM CDT for south central
and southwestern Iowa.

LAT...LON 4057 9466 4072 9482 4090 9448 4090 9427
      4070 9406 4057 9437
TIME...MOT...LOC 0138Z 244DEG 34KT 4066 9463 

HAIL...1.25IN
WIND...60MPH
 
$$

Ansorge

3 follow-up statements

274 
WWUS53 KDMX 290157
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
857 PM CDT WED JUN 28 2017

IAC159-173-290230-
/O.CON.KDMX.SV.W.0222.000000T0000Z-170629T0230Z/
Ringgold IA-Taylor IA-
857 PM CDT WED JUN 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR RINGGOLD AND EASTERN TAYLOR COUNTIES...

At 856 PM CDT, a severe thunderstorm was located 8 miles west of
Mount Ayr, moving east at 45 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts. At 8:34pm, 
         trained weather spotters reported golf ball sized hail 2 
         miles southeast of Bedford.

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
Mount Ayr, Clearfield, Diagonal, Blockton, Sharpsburg, Redding,
Shannon City, Benton, Conway, Maloy, Delphos and Mt Ayr Municipal
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 1000 PM CDT for south central
and southwestern Iowa.

LAT...LON 4057 9448 4081 9466 4090 9448 4090 9427
      4070 9406 4057 9437
TIME...MOT...LOC 0156Z 252DEG 39KT 4073 9440 

HAIL...1.50IN
WIND...60MPH
 
$$

Ansorge

851 
WWUS53 KDMX 290205
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
905 PM CDT WED JUN 28 2017

IAC173-290214-
/O.CAN.KDMX.SV.W.0222.000000T0000Z-170629T0230Z/
Taylor IA-
905 PM CDT WED JUN 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN TAYLOR COUNTY IS
CANCELLED...
    
The severe 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 1000 PM CDT for south central
Iowa.

LAT...LON 4077 9447 4090 9427 4070 9406 4061 9437
TIME...MOT...LOC 0204Z 244DEG 34KT 4077 9430 

$$

IAC159-290230-
/O.CON.KDMX.SV.W.0222.000000T0000Z-170629T0230Z/
Ringgold IA-
905 PM CDT WED JUN 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR CENTRAL RINGGOLD COUNTY...

At 904 PM CDT, a severe thunderstorm was located near Mount Ayr,
moving northeast at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Mount Ayr, Diagonal, Shannon City, Benton, Maloy, Delphos and Mt Ayr
Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 1000 PM CDT for south central
Iowa.

LAT...LON 4077 9447 4090 9427 4070 9406 4061 9437
TIME...MOT...LOC 0204Z 244DEG 34KT 4077 9430 

HAIL...1.00IN
WIND...60MPH
 
$$

Ansorge

201 
WWUS53 KDMX 290218
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
918 PM CDT WED JUN 28 2017

IAC159-290227-
/O.CAN.KDMX.SV.W.0222.000000T0000Z-170629T0230Z/
Ringgold IA-
918 PM CDT WED JUN 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL RINGGOLD COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled. However, small hail is 
still possible with this thunderstorm.

A tornado watch remains in effect until 1000 PM CDT for south central
Iowa.

LAT...LON 4077 9447 4090 9427 4070 9406 4061 9437
TIME...MOT...LOC 0215Z 244DEG 34KT 4083 9415 

$$

Ansorge

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 7:42 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Tama	48 min
Jun 29, 3:44 AM CDT	Flash Flood Watch	DMX	Adams, Decatur, Ringgold, Taylor	19 hr
Jun 29, 5:09 PM CDT	Flash Flood Warning	DMX	Butler, Franklin, Grundy, Hardin	6 hr
Jun 29, 5:11 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin	49 min
Jun 29, 6:15 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	45 min
Jun 29, 6:23 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto	35 min
Jun 29, 6:36 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto	20 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2017 Every severe thunderstorm warning in 2017

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.