Alert archive / Iowa / Tornado Warnings in 2018

Tornado Warning 67, NWS Des Moines, IA

October 9, 2018Ringgold County, Taylor County, Iowa

NWS Des Moines, IA issued this tornado warning at Oct 9, 2018, 4:28 PM CDT for Ringgold County, Taylor County, Iowa. It was in force for 47 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: Oct 9, 2018, 4:28 PM CDT (21:28 UTC)
Expired: Oct 9, 2018, 5:15 PM CDT
In force: 47 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

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 21:33 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 watch it was issued in

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

Issued	Product	Office	Lasted
Oct 9, 1:46 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.5 hours before the alert went out and 177 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: 592 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

799 
WFUS53 KDMX 092128
TORDMX
IAC159-173-092215-
/O.NEW.KDMX.TO.W.0067.181009T2128Z-181009T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
428 PM CDT TUE OCT 9 2018

The National Weather Service in Des Moines  has issued a

* Tornado Warning for...
  Western Ringgold County in south central Iowa...
  Eastern Taylor County in southwestern Iowa...

* Until 515 PM CDT.
    
* At 427 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Athelstan, or 12 miles southwest of Mount Ayr,
  moving north at 30 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
  western Ringgold and eastern Taylor Counties, including the
  following locations... Diagonal, Redding, Maloy, Shannon City,
  Benton, Blockton and Clearfield.

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 4059 9450 4090 9452 4090 9425 4057 9440
      4057 9443
TIME...MOT...LOC 2127Z 192DEG 26KT 4062 9445 

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

$$

Donavon

4 follow-up statements

269 
WWUS53 KDMX 092139
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
439 PM CDT TUE OCT 9 2018

IAC159-173-092215-
/O.CON.KDMX.TO.W.0067.000000T0000Z-181009T2215Z/
Ringgold IA-Taylor IA-
439 PM CDT TUE OCT 9 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR WESTERN
RINGGOLD AND NORTHEASTERN TAYLOR COUNTIES...
    
At 438 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles west of Mount Ayr, moving north at 30 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...
Clearfield, Diagonal, Shannon City, Benton and Maloy. 

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 4067 9449 4090 9452 4090 9425 4064 9437
TIME...MOT...LOC 2138Z 192DEG 26KT 4070 9443 

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

$$

Donavon

619 
WWUS53 KDMX 092148
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
448 PM CDT TUE OCT 9 2018

IAC173-092157-
/O.CAN.KDMX.TO.W.0067.000000T0000Z-181009T2215Z/
Taylor IA-
448 PM CDT TUE OCT 9 2018

...THE TORNADO WARNING FOR NORTHEASTERN TAYLOR COUNTY IS CANCELLED...
    
The tornadic 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 900 PM CDT for south central
Iowa.

LAT...LON 4074 9447 4090 9447 4090 9425 4071 9437
TIME...MOT...LOC 2147Z 192DEG 26KT 4077 9441 

$$

IAC159-092215-
/O.CON.KDMX.TO.W.0067.000000T0000Z-181009T2215Z/
Ringgold IA-
448 PM CDT TUE OCT 9 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
NORTHWESTERN RINGGOLD COUNTY...
    
At 447 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles northwest of Mount Ayr, moving north at 30 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...
Diagonal and Shannon City. 

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 4074 9447 4090 9447 4090 9425 4071 9437
TIME...MOT...LOC 2147Z 192DEG 26KT 4077 9441 

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

$$

Donavon

447 
WWUS53 KDMX 092202
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
502 PM CDT TUE OCT 9 2018

IAC159-092215-
/O.CON.KDMX.TO.W.0067.000000T0000Z-181009T2215Z/
Ringgold IA-
502 PM CDT TUE OCT 9 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
NORTHWESTERN RINGGOLD COUNTY...
    
At 501 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles east of Lenox, or 12 miles south of Creston,
moving north at 30 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
northwestern Ringgold County.

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 4083 9445 4090 9447 4090 9431 4081 9437
TIME...MOT...LOC 2201Z 192DEG 26KT 4088 9438 

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

$$

Donavon

297 
WWUS53 KDMX 092207
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
507 PM CDT TUE OCT 9 2018

IAC159-092217-
/O.EXP.KDMX.TO.W.0067.000000T0000Z-181009T2215Z/
Ringgold IA-
507 PM CDT TUE OCT 9 2018

...THE TORNADO WARNING FOR NORTHWESTERN RINGGOLD COUNTY WILL EXPIRE
AT 515 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 900 PM CDT for south central
Iowa.

LAT...LON 4083 9445 4090 9447 4090 9431 4081 9437
TIME...MOT...LOC 2207Z 192DEG 26KT 4092 9437 

$$

Donavon

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 8, 7:11 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	34 min
Oct 8, 7:23 PM CDT	Tornado Warning	DMX	Clarke, Decatur	37 min
Oct 8, 7:59 PM CDT	Tornado Warning Tornado observed	DMX	Clarke, Lucas, Warren	31 min
Oct 8, 9:54 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Poweshiek	21 min
Oct 8, 10:03 PM CDT	Tornado Warning	DMX	Poweshiek	15 min
Oct 8, 10:26 PM CDT	River Flood Warning	DMX	Polk	7 days
Oct 8, 10:26 PM CDT	River Flood Warning	DMX	Polk	7 days
Oct 8, 10:31 PM CDT	River Flood Watch	DMX	Decatur	3 hr
Oct 9, 12:58 AM CDT	River Flood Warning	DMX	Decatur	4 days
Oct 9, 1:48 AM CDT	Areal Flood Warning	DMX	Clarke, Decatur, Jasper, Lucas, Mahaska, Marion and 6 more	24 hr
Oct 9, 2:49 AM CDT	River Flood Warning	DMX	Polk, Story	3 days
Oct 9, 6:39 AM CDT	River Flood Warning	DMX	Marshall	7 days
Oct 9, 6:39 AM CDT	River Flood Warning	DMX	Black Hawk	6 days
Oct 9, 6:39 AM CDT	River Flood Warning	DMX	Dallas, Greene	5 days
Oct 9, 10:20 AM CDT	River Flood Warning	DMX	Black Hawk, Bremer, Butler	35 hr
Oct 9, 10:20 AM CDT	River Flood Warning	DMX	Lucas, Wayne	64 hr
Oct 9, 11:33 AM CDT	River Flood Warning	DMX	Dallas, Polk	6 days
Oct 9, 12:38 PM CDT	River Flood Watch	DMX	Davis, Wapello	10 hr
Oct 9, 2:16 PM CDT	Tornado Warning	DMX	Mahaska, Marion, Monroe	29 min
Oct 9, 3:22 PM CDT	River Flood Warning	DMX	Story	7 hr
Oct 9, 3:22 PM CDT	River Flood Warning	DMX	Story	20 hr
Oct 9, 3:32 PM CDT	Tornado Warning	DMX	Appanoose, Monroe	43 min
Oct 9, 3:42 PM CDT	Tornado Warning	DMX	Mahaska, Marion, Monroe	22 min
Oct 9, 4:21 PM CDT	Tornado Warning Tornado observed	DMX	Poweshiek, Tama	24 min
Oct 9, 4:47 PM CDT	River Flood Watch	DMX	Jasper, Marion, Polk	29 hr
Oct 9, 4:58 PM CDT	Tornado Warning Tornado observed	DMX	Tama	32 min
Oct 9, 4:59 PM CDT	Tornado Warning	DMX	Jasper, Poweshiek	31 min
Oct 9, 5:13 PM CDT	Tornado Warning	DMX	Adair, Adams, Union	32 min
Oct 9, 5:44 PM CDT	Tornado Warning Tornado observed	DMX	Adair	46 min
Oct 9, 6:11 PM CDT	Tornado Warning Tornado observed	DMX	Adair, Dallas, Guthrie	49 min
Oct 9, 6:30 PM CDT	Tornado Warning	DMX	Polk, Warren	30 min

Nearby

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

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.