Alert archive / Iowa / Tornado Warnings in 2005

Tornado Warning 25, NWS Des Moines, IA

November 12, 2005Audubon County, Guthrie County, Iowa

NWS Des Moines, IA issued this tornado warning at Nov 12, 2005, 3:19 PM CST for Audubon County, Guthrie County, Iowa. It was in force for 26 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
Nov 12, 2005, 3:19 PM CST (21:19 UTC)
Expired
Nov 12, 2005, 3:45 PM CST
In force
26 min
Issued by
NWS Des Moines, IA
Area
Counties, with a storm outline in the text

Counties Audubon County, IA, Guthrie County, IA

The radar

The Des Moines radar (KDMX), 85 km from the middle of the area, began a volume at 21:19 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.

IssuedProductOfficeLasted
Nov 12, 1:44 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.3 hours before the alert went out and 141 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°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 122118
TORDMX
IAC009-077-122145-
/O.NEW.KDMX.TO.W.0025.051112T2119Z-051112T2145Z/

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

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN AUDUBON COUNTY IN WEST CENTRAL IOWA.
  WESTERN GUTHRIE COUNTY IN WEST CENTRAL IOWA.

* UNTIL 345 PM CST.

* AT 315 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES SOUTHEAST OF AUDUBON...OR 61 MILES WEST
  OF DES MOINES...AND MOVING NORTH AT 35 MPH.

* THIS STORM WILL BE...
  5 MILES WEST OF BAYARD BY 345 PM CST.

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 4152 9490 4151 9451 4186 9451 4186 9488

$$

VACHALEK
2 follow-up statements
000 
WWUS53 KDMX 122131
SVSDMX

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

IAC009-077-122145-
/O.CON.KDMX.TO.W.0025.000000T0000Z-051112T2145Z/
GUTHRIE IA-AUDUBON IA-
332 PM CST SAT NOV 12 2005

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN AUDUBON AND
WESTERN GUTHRIE COUNTIES UNTIL 345 PM CST...

AT 328 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 10 MILES WEST OF GUTHRIE CENTER...OR 56 MILES WEST
OF DES MOINES...AND MOVING NORTHEAST AT 40 MPH.

THIS TORNADIC STORM WILL BE...
  NEAR BAYARD BY 345 PM CST.

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 4152 9490 4151 9451 4186 9451 4186 9488

$$

MYERS
000 
WWUS53 KDMX 122145
SVSDMX

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

IAC009-077-122153-
/O.EXP.KDMX.TO.W.0025.000000T0000Z-051112T2145Z/
GUTHRIE IA-AUDUBON IA-
345 PM CST SAT NOV 12 2005

...THE TORNADO WARNING FOR EASTERN AUDUBON AND WESTERN GUTHRIE
COUNTIES HAS BEEN ALLOWED TO EXPIRE...

AT 345 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORMS WHICH PROMPTED THE WARNING ARE MOVING OUT OF THE AREA. 
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

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 4152 9490 4151 9451 4186 9451 4186 9488

$$
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, 3:22 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.