Alert archive / Iowa / Tornado Warnings in 2013
Tornado Warning 22, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 12, 2013, 6:04 PM CDT for Butler County, Franklin County, Iowa. It was in force for 41 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 12, 2013, 6:04 PM CDT (23:04 UTC)
- Expired
- Jun 12, 2013, 6:45 PM CDT
- In force
- 41 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Butler County, IA, Franklin County, IA
The radar
The Des Moines radar (KDMX), 132 km from the middle of the area, began a volume at 23:06 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 12, 6:24 PM CDT | FUNNEL CLOUD | 4 Nw Dumont, 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 12, 1:49 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 237 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 912 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
437
WFUS53 KDMX 122304
TORDMX
IAC023-069-122345-
/O.NEW.KDMX.TO.W.0022.130612T2304Z-130612T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
604 PM CDT WED JUN 12 2013
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN BUTLER COUNTY IN NORTH CENTRAL IOWA...
NORTHEASTERN FRANKLIN COUNTY IN NORTH CENTRAL IOWA...
* UNTIL 645 PM CDT
* AT 602 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 8 MILES SOUTHEAST OF SHEFFIELD...AND MOVING
SOUTHEAST AT 30 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
LIKELY.
* LOCATIONS IMPACTED INCLUDE...
ALLISON...CLARKSVILLE...HANSELL...AREDALE...DUMONT AND BRISTOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4261 9285 4281 9323 4291 9315 4291 9298
4278 9264
TIME...MOT...LOC 2304Z 301DEG 25KT 4283 9306
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$2 follow-up statements
246
WWUS53 KDMX 122317
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
617 PM CDT WED JUN 12 2013
IAC069-122327-
/O.CAN.KDMX.TO.W.0022.000000T0000Z-130612T2345Z/
FRANKLIN IA-
617 PM CDT WED JUN 12 2013
...THE TORNADO WARNING FOR NORTHEASTERN FRANKLIN COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4278 9264 4261 9285 4274 9303 4291 9302
TIME...MOT...LOC 2317Z 301DEG 25KT 4280 9296
$$
IAC023-122345-
/O.CON.KDMX.TO.W.0022.000000T0000Z-130612T2345Z/
BUTLER IA-
617 PM CDT WED JUN 12 2013
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BUTLER COUNTY
UNTIL 645 PM CDT...
AT 615 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 10 MILES WEST OF ALLISON...AND MOVING SOUTHEAST AT 30
MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.
THIS DANGEROUS STORM WILL BE NEAR...
BRISTOW AROUND 625 PM CDT.
ALLISON AROUND 635 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4278 9264 4261 9285 4274 9303 4291 9302
TIME...MOT...LOC 2317Z 301DEG 25KT 4280 9296
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$907
WWUS53 KDMX 122331
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
631 PM CDT WED JUN 12 2013
IAC023-122345-
/O.CON.KDMX.TO.W.0022.000000T0000Z-130612T2345Z/
BUTLER IA-
631 PM CDT WED JUN 12 2013
...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BUTLER COUNTY
UNTIL 645 PM CDT...
AT 628 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ALLISON...AND MOVING SOUTHEAST AT 35 MPH. FUNNEL
CLOUDS HAVE BEEN REPORTED WITH THIS STORM...NORTH OF DUMONT.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.
THIS DANGEROUS STORM WILL BE NEAR...
CLARKSVILLE AROUND 640 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4278 9264 4264 9282 4274 9293 4286 9288
TIME...MOT...LOC 2331Z 300DEG 29KT 4274 9283
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 4:16 PM CDT | Tornado Warning | DMX | Cerro Gordo, Franklin, Hancock, Wright | 29 min |
| Jun 12, 4:25 PM CDT | Tornado Warning | DMX | Bremer, Butler | 35 min |
| Jun 12, 4:39 PM CDT | Tornado Warning | DMX | Franklin | 36 min |
| Jun 12, 4:49 PM CDT | Tornado Warning | DMX | Black Hawk | 26 min |
| Jun 12, 4:54 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer, Butler | 36 min |
| Jun 12, 5:14 PM CDT | Tornado Warning | DMX | Butler, Franklin | 31 min |
| Jun 12, 5:29 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer | 31 min |
| Jun 12, 5:34 PM CDT | Tornado Warning | DMX | Cerro Gordo, Franklin | 41 min |
| Jun 12, 5:37 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 53 min |
| Jun 12, 5:44 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer, Butler | 31 min |
| Jun 12, 6:40 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer, Butler | 35 min |
Nearby
Tornado Warnings in Iowa, 2013Every tornado warning in 2013Tornadoes in 2013
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.