Alert archive / Iowa / Tornado Warnings in 2015

Tornado Warning 12, NWS Des Moines, IA

June 22, 20154 counties in Iowa

NWS Des Moines, IA issued this tornado warning at Jun 22, 2015, 6:10 PM CDT for 4 counties in Iowa. It was in force for 20 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: Jun 22, 2015, 6:10 PM CDT (23:10 UTC)
Expired: Jun 22, 2015, 6:30 PM CDT
In force: 20 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Appanoose County, IA, Davis County, IA, Monroe County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 125 km from the middle of the area, began a volume at 23:10 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
Jun 22, 3:56 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.2 hours before the alert went out and 197 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: 1240 J/kg
Mixed-layer CIN: -232 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

306 
WFUS53 KDMX 222310
TORDMX
IAC007-051-135-179-222330-
/O.NEW.KDMX.TO.W.0012.150622T2310Z-150622T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
610 PM CDT MON JUN 22 2015

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN DAVIS COUNTY IN SOUTHEASTERN IOWA...
  SOUTHEASTERN MONROE COUNTY IN SOUTH CENTRAL IOWA...
  NORTHEASTERN APPANOOSE COUNTY IN SOUTH CENTRAL IOWA...
  SOUTHWESTERN WAPELLO COUNTY IN SOUTHEASTERN IOWA...

* UNTIL 630 PM CDT
    
* AT 610 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 7 MILES SOUTHEAST OF ALBIA...MOVING SOUTHEAST
  AT 25 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 DAVIS...SOUTHEASTERN MONROE...NORTHEASTERN APPANOOSE
  AND SOUTHWESTERN WAPELLO COUNTIES...INCLUDING THE FOLLOWING
  LOCATIONS...BLAKESBURG.

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 4094 9276 4100 9270 4092 9252 4083 9261
TIME...MOT...LOC 2310Z 304DEG 21KT 4095 9271 

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

$$

COGIL

2 follow-up statements

540 
WWUS53 KDMX 222318
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
618 PM CDT MON JUN 22 2015

IAC007-051-135-179-222330-
/O.CON.KDMX.TO.W.0012.000000T0000Z-150622T2330Z/
DAVIS IA-MONROE IA-APPANOOSE IA-WAPELLO IA-
618 PM CDT MON JUN 22 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN DAVIS...SOUTHEASTERN MONROE...NORTHEASTERN APPANOOSE AND
SOUTHWESTERN WAPELLO COUNTIES...
    
AT 618 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES NORTHEAST OF LAKE SUNDOWN...OR 10 MILES SOUTHEAST
OF ALBIA...MOVING SOUTHEAST AT 25 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...
BLAKESBURG.

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 4091 9272 4098 9266 4092 9252 4083 9261
TIME...MOT...LOC 2318Z 304DEG 21KT 4092 9266 

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

$$

COGIL

183 
WWUS53 KDMX 222324
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
624 PM CDT MON JUN 22 2015

IAC007-051-135-179-222330-
/O.CON.KDMX.TO.W.0012.000000T0000Z-150622T2330Z/
DAVIS IA-MONROE IA-APPANOOSE IA-WAPELLO IA-
624 PM CDT MON JUN 22 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN DAVIS...SOUTHEASTERN MONROE...NORTHEASTERN APPANOOSE AND
SOUTHWESTERN WAPELLO COUNTIES...
    
AT 624 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 5 MILES NORTHEAST OF LAKE SUNDOWN...OR 12 MILES SOUTHEAST
OF ALBIA...MOVING SOUTHEAST 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. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHWESTERN DAVIS...SOUTHEASTERN MONROE...NORTHEASTERN APPANOOSE AND
SOUTHWESTERN WAPELLO COUNTIES.

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 4091 9272 4094 9265 4088 9256 4083 9261
TIME...MOT...LOC 2324Z 333DEG 19KT 4089 9265 

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

$$

COGIL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 9:49 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Union, Warren	39 min
Jun 22, 5:32 AM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Winnebago	28 min
Jun 22, 5:35 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	25 min
Jun 22, 5:58 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas	47 min
Jun 22, 5:59 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	46 min
Jun 22, 6:43 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas and 4 more	47 min
Jun 22, 6:55 AM CDT	Tornado Warning	DMX	Humboldt, Wright	35 min
Jun 22, 7:16 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hamilton, Hardin, Webster and 1 more	44 min
Jun 22, 7:33 AM CDT	Wind Advisory	DMX	Calhoun, Cerro Gordo, Emmet, Franklin, Hancock, Humboldt and 8 more	2 hr
Jun 22, 7:54 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Franklin, Grundy, Hamilton and 1 more	51 min
Jun 22, 7:55 AM CDT	High Wind Warning	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	65 min
Jun 22, 8:22 AM CDT	Severe Thunderstorm Warning	DMX	Tama	36 min
Jun 22, 8:38 AM CDT	Special Weather Statement	DMX	Cerro Gordo, Franklin, Hamilton, Hancock, Humboldt, Kossuth and 3 more	82 min
Jun 22, 9:24 AM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster, Wright	44 min
Jun 22, 10:06 AM CDT	Severe Thunderstorm Warning	DMX	Tama	20 min
Jun 22, 11:06 AM CDT	Special Weather Statement	DMX	Black Hawk, Grundy	39 min
Jun 22, 5:08 PM CDT	Tornado Warning	DMX	Lucas, Marion, Monroe	37 min
Jun 22, 5:44 PM CDT	Tornado Warning	DMX	Monroe	31 min
Jun 22, 6:30 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis	45 min
Jun 22, 6:33 PM CDT	Flash Flood Warning	DMX	Mahaska, Monroe, Wapello	6 hr
Jun 22, 6:44 PM CDT	Tornado Warning	DMX	Davis	16 min

Nearby

Tornado Warnings in Iowa, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.