Alert archive / Iowa / Tornado Warnings in 2005

Tornado Warning 31, NWS Des Moines, IA

November 12, 20054 counties in Iowa

NWS Des Moines, IA issued this tornado warning at Nov 12, 2005, 4:57 PM CST for 4 counties in Iowa. It was in force for 48 min. 3 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
Nov 12, 2005, 4:57 PM CST (22:57 UTC)
Expired
Nov 12, 2005, 5:45 PM CST
In force
48 min
Issued by
NWS Des Moines, IA
Area
Counties, with a storm outline in the text

Counties Franklin County, IA, Hamilton County, IA, Hardin County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 97 km from the middle of the area, began a volume at 22:58 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

TimeReportWhereRemark
Nov 12, 5:25 PM CSTTORNADO1 S Webster City, IADELAYED REOPORT OF TORNADO DAMAGE TO TREES AND TIPPED OVER HORSE TRAILER.
Nov 12, 5:27 PM CSTTORNADO1 S Williams, IA
Nov 12, 5:30 PM CSTTORNADO2 Sse Williams, IADELAYED REPORT. TORNADO DAMAGE TO SEVERAL HOG CONFINEMENTS. THE CONFINEMENTS WERE DESTROYED.

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.

IssuedProductOfficeLasted
Nov 12, 1:44 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 251 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2005-11-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2005-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1591 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDMX 122257
TORDMX
IAC069-079-083-197-122345-
/O.NEW.KDMX.TO.W.0031.051112T2257Z-051112T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
457 PM CST SAT NOV 12 2005

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN HARDIN COUNTY IN CENTRAL IOWA.
  NORTHERN HAMILTON COUNTY IN CENTRAL IOWA.
  FRANKLIN COUNTY IN NORTH CENTRAL IOWA.
  SOUTHEASTERN WRIGHT COUNTY IN NORTH CENTRAL IOWA.

* UNTIL 545 PM CST.

* AT 453 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO NEAR WEBSTER CITY...
  OR 21 MILES EAST OF FORT DODGE. THE STORM WAS MOVING NORTHEAST AT
  45 MPH.

* THE TORNADO WILL BE...
  NEAR BLAIRSBURG BY 505 PM CST.
  5 MILES NORTHWEST OF WILLIAMS BY 510 PM CST.
  NEAR DOWS BY 520 PM CST.
  NEAR COULTER BY 530 PM CST.
  NEAR LATIMER BY 535 PM CST.
  NEAR HAMPTON BY 540 PM CST.

THE LOCATIONS OF POPEJOY AND HAMPTON MUNICIPAL AIRPORT ARE ALSO IN
THE PATH.

THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN
INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A
CAR...SEEK SHELTER IN A REINFORCED BUILDING.

LAT...LON 4247 9386 4234 9366 4276 9302 4291 9332

$$
3 follow-up statements
000 
WWUS53 KDMX 122309
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
510 PM CST SAT NOV 12 2005

IAC069-079-083-197-122345-
/O.CON.KDMX.TO.W.0031.000000T0000Z-051112T2345Z/
WRIGHT IA-FRANKLIN IA-HAMILTON IA-HARDIN IA-
510 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN HARDIN...
NORTHERN HAMILTON...FRANKLIN AND SOUTHEASTERN WRIGHT COUNTIES UNTIL
545 PM CST...

AT 506 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 5 MILES EAST OF WEBSTER CITY...OR 24 MILES EAST OF FORT
DODGE...AND MOVING NORTHEAST AT 45 MPH.

THIS TORNADIC STORM WILL BE...
  NEAR DOWS BY 525 PM CST.
  NEAR LATIMER BY 540 PM CST.

THE LOCATIONS OF BLAIRSBURG AND COULTER ARE ALSO IN THE PATH OF THIS
TORNADO.

IF SEVERE WEATHER WAS OBSERVED...CONTACT THE NATIONAL WEATHER SERVICE
OFFICE IN DES MOINES AT 1-800-759-9276.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST SATURDAY EVENING
FOR IOWA.

LAT...LON 4247 9386 4234 9366 4276 9302 4291 9332

$$

MYERS
000 
WWUS53 KDMX 122331
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
527 PM CST SAT NOV 12 2005

IAC079-197-122337-
/O.CAN.KDMX.TO.W.0031.000000T0000Z-051112T2345Z/
WRIGHT IA-HAMILTON IA-
527 PM CST SAT NOV 12 2005

...THE TORNADO WARNING FOR HAMILTON AND WRIGHT COUNTIES HAS BEEN
CANCELLED...

AT 523 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR
MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST SATURDAY EVENING
FOR IOWA.

LAT...LON 4259 9350 4239 9349 4276 9303 4291 9332
      4269 9344

$$

IAC069-083-122345-
/O.CON.KDMX.TO.W.0031.000000T0000Z-051112T2345Z/
FRANKLIN IA-HARDIN IA-
527 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN HARDIN AND
FRANKLIN COUNTIES UNTIL 545 PM CST...

AT 523 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING 
SEVERE THUNDERSTORMS WITH CONFIRMED TORNADOS.  THIS DANGEROUS STORMS 
WERE LOCATED 1 MILE SOUTH OF WILLIAMS...OR 32 MILES EAST OF FORT 
DODGE...AND MOVING NORTHEAST AT 45 MPH. ANOTHER TORNADIC STORM WAS 
LOCATED 3 MILES NORTHEAST OF DOWS MOVING NORTHEAST AT 50 MPH.

THIS TORNADIC STORMS WILL BE...
  NEAR LATIMER BY 540 PM CST AND
  NEAR OVER RURAL AREAS OF WESTERN FRANKLIN.
  A.

THE LOCATION OF COULTER IS ALSO IN THE PATH OF THIS TORNADO.

IF SEVERE WEATHER WAS OBSERVED...CONTACT THE NATIONAL WEATHER SERVICE
OFFICE IN DES MOINES AT 1-800-759-9276.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST SATURDAY EVENING
FOR IOWA.

LAT...LON 4259 9350 4239 9349 4276 9303 4291 9332
      4269 9344

$$
MYERS
000 
WWUS53 KDMX 122341
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
541 PM CST SAT NOV 12 2005

IAC069-083-122351-
/O.EXP.KDMX.TO.W.0031.000000T0000Z-051112T2345Z/
FRANKLIN IA-HARDIN IA-
541 PM CST SAT NOV 12 2005

...THE TORNADO WARNING FOR NORTHWESTERN HARDIN AND FRANKLIN COUNTIES
HAS BEEN ALLOWED TO EXPIRE...

AT 536 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE WEAKENED.

IF SEVERE WEATHER WAS OBSERVED...CONTACT THE NATIONAL WEATHER SERVICE
OFFICE IN DES MOINES AT 1-800-759-9276.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST SATURDAY EVENING
FOR IOWA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM CST
SATURDAY EVENING FOR NORTHEAST IOWA.

LAT...LON 4259 9350 4239 9349 4276 9303 4291 9332
      4269 9344

$$
MYERS

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 12, 4:32 AM CSTWind AdvisoryDMXAdair, Adams, Audubon, Black Hawk, Boone, Bremer and 35 more34 hr
Nov 12, 2:39 PM CSTSevere Thunderstorm WarningDMXCass21 min
Nov 12, 2:56 PM CSTSevere Thunderstorm WarningDMXCrawford34 min
Nov 12, 3:05 PM CSTSevere Thunderstorm WarningDMXAudubon, Guthrie25 min
Nov 12, 3:19 PM CSTTornado WarningDMXAudubon, Guthrie26 min
Nov 12, 3:22 PM CSTSevere Thunderstorm WarningDMXAdair38 min
Nov 12, 3:43 PM CSTTornado WarningDMXGreene47 min
Nov 12, 3:51 PM CSTSevere Thunderstorm WarningDMXDallas, Guthrie39 min
Nov 12, 3:58 PM CSTTornado WarningDMXDallas, Guthrie32 min
Nov 12, 4:24 PM CSTSevere Thunderstorm WarningDMXBoone, Hamilton, Webster51 min
Nov 12, 4:30 PM CSTTornado WarningDMXBoone, Hamilton, Webster30 min
Nov 12, 4:30 PM CSTTornado WarningDMXBoone, Dallas30 min
Nov 12, 4:56 PM CSTTornado WarningDMXStory34 min
Nov 12, 5:06 PM CSTTornado WarningDMXHamilton24 min
Nov 12, 5:18 PM CSTSevere Thunderstorm WarningDMXJasper, Polk27 min
Nov 12, 5:23 PM CSTTornado WarningDMXHardin22 min
Nov 12, 5:41 PM CSTTornado WarningDMXFranklin, Hardin34 min

Nearby

Tornado Warnings in Iowa, 2005Every tornado warning in 2005Tornadoes in 2005

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.