Alert archive / Iowa / Tornado Warnings in 2016

Tornado Warning 3, NWS Des Moines, IA

April 27, 20164 counties in Iowa

NWS Des Moines, IA issued this tornado warning at Apr 27, 2016, 5:14 PM CDT for 4 counties in Iowa. It was in force for 34 min. 2 reports 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: Apr 27, 2016, 5:14 PM CDT (22:14 UTC)
Expired: Apr 27, 2016, 5:48 PM CDT
In force: 34 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Adams County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA

The radar

The Des Moines radar (KDMX), 115 km from the middle of the area, began a volume at 22:16 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
Apr 27, 5:14 PM CDT	TSTM WND DMG	2 Nnw Clearfield, IA	DAMAGE TO A BARN. TIME ESTIMATED FROM RADAR.
Apr 27, 5:43 PM CDT	TORNADO	3 Ssw Creston, IA	TORNADO 1 MILE WEST OF THE CRESTON AIRPORT HEADING TOWARDS CRESTON.

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
Apr 27, 2:33 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.2 hours before the alert went out and 165 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: 514 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 268 m²/s²
0-3 km storm-relative helicity: 345 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

404 
WFUS53 KDMX 272214
TORDMX
IAC003-159-173-175-272300-
/O.NEW.KDMX.TO.W.0003.160427T2214Z-160427T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
514 PM CDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN TAYLOR COUNTY IN SOUTHWESTERN IOWA...
  SOUTHWESTERN UNION COUNTY IN SOUTH CENTRAL IOWA...
  NORTHWESTERN RINGGOLD COUNTY IN SOUTH CENTRAL IOWA...
  SOUTHEASTERN ADAMS COUNTY IN SOUTHWESTERN IOWA...

* UNTIL 600 PM CDT
    
* AT 514 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 4 MILES SOUTHEAST OF LENOX...OR 15 MILES
  NORTHEAST OF BEDFORD...MOVING NORTHEAST AT 35 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  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
  NORTHEASTERN TAYLOR...SOUTHWESTERN UNION...NORTHWESTERN RINGGOLD
  AND SOUTHEASTERN ADAMS COUNTIES...INCLUDING THE FOLLOWING LOCATIONS:
  CRESTON MUNICIPAL AIRPORT...KENT...CLEARFIELD AND CROMWELL.

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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4078 9463 4104 9452 4103 9424 4071 9443
TIME...MOT...LOC 2214Z 205DEG 28KT 4083 9451 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

COGIL

3 follow-up statements

271 
WWUS53 KDMX 272224
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
524 PM CDT WED APR 27 2016

IAC003-159-173-175-272300-
/O.CON.KDMX.TO.W.0003.000000T0000Z-160427T2300Z/
TAYLOR IA-UNION IA-RINGGOLD IA-ADAMS IA-
524 PM CDT WED APR 27 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHEASTERN TAYLOR...SOUTHWESTERN UNION...NORTHWESTERN RINGGOLD AND
SOUTHEASTERN ADAMS COUNTIES...
    
AT 523 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR LENOX...OR 12 MILES SOUTHWEST OF CRESTON...MOVING
NORTH AT 30 MPH.

A SECOND CIRCULATION WAS LOCATED SOUTHWEST OF DIAGONAL...ALSO MOVING
NORTH AT 30 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

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...
LENOX...CLEARFIELD...CROMWELL...KENT AND CRESTON MUNICIPAL AIRPORT. 

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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4104 9452 4103 9424 4074 9441 4086 9460
TIME...MOT...LOC 2223Z 185DEG 27KT 4091 9451 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

COGIL

159 
WWUS53 KDMX 272233
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
533 PM CDT WED APR 27 2016

IAC159-173-272242-
/O.CAN.KDMX.TO.W.0003.000000T0000Z-160427T2300Z/
TAYLOR IA-RINGGOLD IA-
533 PM CDT WED APR 27 2016

...THE TORNADO WARNING FOR NORTHEASTERN TAYLOR AND NORTHWESTERN
RINGGOLD COUNTIES 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 SOUTHWESTERN
IOWA.

LAT...LON 4090 9447 4095 9456 4104 9452 4103 9424
      4090 9431
TIME...MOT...LOC 2232Z 176DEG 34KT 4099 9452 

$$

IAC003-175-272300-
/O.CON.KDMX.TO.W.0003.000000T0000Z-160427T2300Z/
UNION IA-ADAMS IA-
533 PM CDT WED APR 27 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
SOUTHWESTERN UNION AND SOUTHEASTERN ADAMS COUNTIES...
    
AT 532 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES NORTH OF LENOX...OR 9 MILES SOUTHWEST OF
CRESTON...MOVING NORTH AT 40 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

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...
CROMWELL...KENT AND CRESTON MUNICIPAL AIRPORT. 

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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4090 9447 4095 9456 4104 9452 4103 9424
      4090 9431
TIME...MOT...LOC 2232Z 176DEG 34KT 4099 9452 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

COGIL

439 
WWUS53 KDMX 272248
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
548 PM CDT WED APR 27 2016

IAC003-175-272256-
/O.CAN.KDMX.TO.W.0003.000000T0000Z-160427T2300Z/
UNION IA-ADAMS IA-
548 PM CDT WED APR 27 2016

...THE TORNADO WARNING FOR SOUTHWESTERN UNION AND SOUTHEASTERN ADAMS
COUNTIES IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEPARATE TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN UNION
COUNTY UNTIL 630 PM CDT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR SOUTHWESTERN
IOWA.


LAT...LON 4090 9447 4095 9456 4104 9452 4103 9424
      4090 9431
TIME...MOT...LOC 2245Z 205DEG 28KT 4109 9446 

$$

COGIL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 12:38 AM CDT	Special Weather Statement	DMX	Wayne	37 min
Apr 27, 7:21 AM CDT	River Flood Warning	DMX	Taylor	32 hr
Apr 27, 3:57 PM CDT	Severe Thunderstorm Warning	DMX	Taylor	48 min
Apr 27, 3:59 PM CDT	Severe Thunderstorm Warning	DMX	Cass	46 min
Apr 27, 4:38 PM CDT	Tornado Warning	DMX	Taylor	37 min
Apr 27, 5:28 PM CDT	Special Weather Statement	DMX	Cass	92 min
Apr 27, 5:42 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Clarke, Madison, Ringgold, Union	48 min
Apr 27, 5:45 PM CDT	Tornado Warning Tornado observed	DMX	Adair, Madison, Union	27 min
Apr 27, 6:17 PM CDT	Special Weather Statement	DMX	Decatur	28 min
Apr 27, 6:40 PM CDT	Special Weather Statement	DMX	Clarke	35 min

Nearby

Tornado Warnings in Iowa, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.