Alert archive / Iowa / Tornado Warnings in 2005

Tornado Warning 28, NWS Des Moines, IA

November 12, 2005Boone County, Hamilton County, Webster County, Iowa

NWS Des Moines, IA issued this tornado warning at Nov 12, 2005, 4:30 PM CST for Boone County, Hamilton County, Webster County, Iowa. It was in force for 30 min. 5 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, 4:30 PM CST (22:30 UTC)
Expired
Nov 12, 2005, 5:00 PM CST
In force
30 min
Issued by
NWS Des Moines, IA
Area
Counties, with a storm outline in the text

Counties Boone County, IA, Hamilton County, IA, Webster County, IA

The radar

The Des Moines radar (KDMX), 66 km from the middle of the area, began a volume at 22:32 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, 4:30 PM CSTTORNADO3 N Pilot Mound, IA
Nov 12, 4:33 PM CSTTORNADO3 Sw Stratford, IA
Nov 12, 4:34 PM CSTTORNADO1 Sw Stratford, IA
Nov 12, 4:36 PM CSTTORNADO3 S Stratford, IA
Nov 12, 4:46 PM CSTTORNADOStratford, 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.

IssuedProductOfficeLasted
Nov 12, 1:44 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.5 hours before the alert went out and 222 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, Omaha, NE 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, Omaha, NE at 12:00Z on 2005-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
1049 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
136 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 122229
TORDMX
IAC015-079-187-122300-
/O.NEW.KDMX.TO.W.0028.051112T2230Z-051112T2300Z/

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

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN BOONE COUNTY IN CENTRAL IOWA.
  SOUTHWESTERN HAMILTON COUNTY IN CENTRAL IOWA.
  SOUTHEASTERN WEBSTER COUNTY IN CENTRAL IOWA.

* UNTIL 500 PM CST.

* AT 428 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO 11 MILES SOUTHEAST
  OF GOWRIE...OR 21 MILES SOUTH OF FORT DODGE. THE STORM WAS MOVING
  NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE...
  NEAR STRATFORD BY 440 PM CST.
  6 MILES NORTHWEST OF STANHOPE BY 450 PM CST.
  NEAR WEBSTER CITY MUNICIPAL BY 455 PM CST.

THE LOCATIONS OF BOXHOLM...PILOT MOUND...HARCOURT AND DAYTON 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 4223 9424 4209 9407 4235 9368 4249 9389

$$
4 follow-up statements
000 
WWUS53 KDMX 122234
SVSDMX

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

IAC015-079-187-122300-
/O.CON.KDMX.TO.W.0028.000000T0000Z-051112T2300Z/
WEBSTER IA-HAMILTON IA-BOONE IA-
435 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BOONE...
SOUTHWESTERN HAMILTON AND SOUTHEASTERN WEBSTER COUNTIES UNTIL 500 PM
CST...

AT 432 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 12 MILES NORTH OF OGDEN...OR 22 MILES SOUTH OF FORT
DODGE...AND MOVING NORTHEAST AT 35 MPH.

THIS TORNADIC STORM WILL BE...
  NEAR STRATFORD BY 440 PM CST.
  5 MILES NORTHWEST OF STANHOPE BY 450 PM CST.
  NEAR WEBSTER CITY MUNICIPAL BY 500 PM CST.

THE LOCATIONS OF DAYTON AND PILOT MOUND ARE ALSO IN THE PATH OF THIS
TORNADO.

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

LAT...LON 4223 9424 4209 9407 4235 9368 4249 9389

$$

MYERS
000 
WWUS53 KDMX 122242
SVSDMX

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

IAC015-079-187-122300-
/O.CON.KDMX.TO.W.0028.000000T0000Z-051112T2300Z/
WEBSTER IA-HAMILTON IA-BOONE IA-
441 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BOONE...
SOUTHWESTERN HAMILTON AND SOUTHEASTERN WEBSTER COUNTIES UNTIL 500 PM
CST...

AT 436 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 15 MILES NORTH OF BOONE...OR 20 MILES SOUTHEAST OF FORT
DODGE...AND MOVING NORTHEAST AT 55 MPH.

THIS TORNADIC STORM WILL BE...
  5 MILES SOUTHEAST OF WEBSTER CITY MUNICIPAL BY 445 PM CST.

THE LOCATIONS OF STRATFORD AND STANHOPE ARE NEAR THE PATH OF THIS 
TORNADO.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

LAT...LON 4223 9424 4209 9407 4235 9368 4249 9389

$$

MYERS
000 
WWUS53 KDMX 122246
SVSDMX

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

IAC015-079-187-122300-
/O.CON.KDMX.TO.W.0028.000000T0000Z-051112T2300Z/
WEBSTER IA-HAMILTON IA-BOONE IA-
446 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BOONE...
SOUTHWESTERN HAMILTON AND SOUTHEASTERN WEBSTER COUNTIES UNTIL 500 PM
CST...

AT 445 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 12 MILES SOUTH OF WEBSTER CITY...OR 20 MILES SOUTHEAST OF
FORT DODGE...AND MOVING NORTHEAST AT 35 MPH.

THIS TORNADIC STORM WILL BE...
  6 MILES SOUTHEAST OF WEBSTER CITY MUNICIPAL BY 455 PM CST.

THE LOCATIONS OF STRATFORD AND STANHOPE ARE ALSO IN THE PATH OF THIS
TORNADO.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

LAT...LON 4224 9415 4216 9415 4209 9407 4235 9368
      4247 9387

$$

MYERS
000 
WWUS53 KDMX 122252
SVSDMX

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

IAC015-079-187-122300-
/O.CON.KDMX.TO.W.0028.000000T0000Z-051112T2300Z/
WEBSTER IA-HAMILTON IA-BOONE IA-
452 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BOONE...
SOUTHWESTERN HAMILTON AND SOUTHEASTERN WEBSTER COUNTIES UNTIL 500 PM
CST...

AT 449 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 7 MILES SOUTH OF WEBSTER CITY...OR 20 MILES SOUTHEAST OF
FORT DODGE...AND MOVING NORTHEAST AT 55 MPH.

THIS TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHWESTERN
BOONE...SOUTHEASTERN WEBSTER AND SOUTHWESTERN HAMILTON COUNTIES...
INCLUDING THE LOCATION OF WEBSTER CITY MUNICIPAL.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

LAT...LON 4224 9415 4216 9415 4209 9407 4235 9368
      4247 9387

$$

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, Dallas30 min
Nov 12, 4:56 PM CSTTornado WarningDMXStory34 min
Nov 12, 4:57 PM CSTTornado WarningDMXFranklin, Hamilton, Hardin, Wright48 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.