Alert archive / Iowa / Tornado Warnings in 2005

Tornado Warning 1, NWS Des Moines, IA

March 30, 2005Webster County, Iowa

NWS Des Moines, IA issued this tornado warning at Mar 30, 2005, 12:13 PM CST for Webster County, Iowa. It was in force for 32 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
Mar 30, 2005, 12:13 PM CST (18:13 UTC)
Expired
Mar 30, 2005, 12:45 PM CST
In force
32 min
Issued by
NWS Des Moines, IA
Area
Counties, with a storm outline in the text

County Webster County, IA

The radar

The Des Moines radar (KDMX), 79 km from the middle of the area, began a volume at 18:14 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
Mar 30, 8:40 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 6.2 hours before the alert went out and 208 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 2005-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 585 joules per kilogram.LCLLFCEL10008507005003002001001 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 2005-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 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
585 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
916 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
61 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 301813
TORDMX
IAC187-301845-
/O.NEW.KDMX.TO.W.0001.050330T1813Z-050330T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1213 PM CST WED MAR 30 2005

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN WEBSTER COUNTY IN CENTRAL IOWA.

* UNTIL 1245 PM CST.

* AT 1209 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR GOWRIE...OR 15 MILES SOUTH OF FORT DODGE...
  AND MOVING NORTHEAST AT 20 MPH.

* THIS STORM WILL BE...
  NEAR OTHO BY 1235 PM CST.
  NEAR LEHIGH BY 1240 PM CST.

PUBLIC REPORTED A POSSIBLE TORNADO NEAR GOWRIE AT 1205 PM. 

THE LOCATIONS OF CALLENDER AND HARCOURT 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 4222 9440 4221 9405 4251 9401 4247 9441

$$

JOHNSON
2 follow-up statements
000 
WWUS53 KDMX 301826
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1226 PM CST WED MAR 30 2005

IAC187-301845-
/O.CON.KDMX.TO.W.0001.000000T0000Z-050330T1845Z/
WEBSTER IA-
1226 PM CST WED MAR 30 2005

...A TORNADO WARNING CONTINUES FOR SOUTHERN WEBSTER COUNTY UNTIL 1245
PM CST...

AT 1224 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 13 MILES SOUTHWEST OF WEBSTER CITY...OR 17 MILES
SOUTHEAST OF FORT DODGE...AND MOVING NORTHWEST AT 25 MPH.

THIS TORNADIC STORM WILL BE...
  6 MILES NORTHEAST OF DAYTON BY 1220 PM CST.
  NEAR LEHIGH BY 1235 PM CST.
  NEAR DUNCOMBE BY 1245 PM CST.

THE LOCATION OF OTHO IS ALSO IN THE PATH OF THIS THUNDERSTORM WHICH 
MAY PRODUCE A TORNADO.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

LAT...LON 4222 9440 4221 9396 4247 9396 4247 9441

$$

JOHNSON
000 
WWUS53 KDMX 301835
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1234 PM CST WED MAR 30 2005

IAC187-301845-
/O.CON.KDMX.TO.W.0001.000000T0000Z-050330T1845Z/
WEBSTER IA-
1234 PM CST WED MAR 30 2005

...A TORNADO WARNING CONTINUES FOR SOUTHERN WEBSTER COUNTY UNTIL 1245
PM CST...

AT 1229 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A SEVERE THUNDERSTORM WITH A CONFIRMED TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 13 MILES SOUTHWEST OF WEBSTER CITY...OR 13 MILES
SOUTHEAST OF FORT DODGE...AND MOVING NORTHWEST AT 25 MPH.

THIS TORNADIC STORM WILL BE...
  6 MILES SOUTHWEST OF DUNCOMBE BY 1240 PM CST.
  NEAR OTHO BY 1245 PM CST.

A STORM SPOTTER REPORTED A TORNADO JUST NORTHEAST OF LEHIGH AT 1233 
PM. 

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

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

LAT...LON 4222 9440 4221 9396 4247 9396 4247 9441

$$

JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 3:38 AM CSTSevere Thunderstorm WarningDMXKossuth22 min
Mar 30, 4:24 AM CSTSevere Thunderstorm WarningDMXEmmet21 min
Mar 30, 9:21 AM CSTSevere Thunderstorm WarningDMXRinggold, Taylor45 min
Mar 30, 10:00 AM CSTSevere Thunderstorm WarningDMXRinggold45 min
Mar 30, 10:58 AM CSTSevere Thunderstorm WarningDMXWayne47 min
Mar 30, 11:20 AM CSTSevere Thunderstorm WarningDMXPolk28 min
Mar 30, 11:24 AM CSTSevere Thunderstorm WarningDMXCalhoun36 min
Mar 30, 11:31 AM CSTSevere Thunderstorm WarningDMXDallas29 min
Mar 30, 12:06 PM CSTSevere Thunderstorm WarningDMXStory24 min
Mar 30, 12:43 PM CSTTornado WarningDMXHamilton, Webster32 min
Mar 30, 12:55 PM CSTSevere Thunderstorm WarningDMXDallas50 min
Mar 30, 12:55 PM CSTTornado WarningDMXWright35 min
Mar 30, 1:21 PM CSTSevere Thunderstorm WarningDMXButler39 min
Mar 30, 1:33 PM CSTSevere Thunderstorm WarningDMXPoweshiek42 min
Mar 30, 1:43 PM CSTTornado WarningDMXCerro Gordo32 min
Mar 30, 1:46 PM CSTSevere Thunderstorm WarningDMXBremer44 min
Mar 30, 1:51 PM CSTTornado WarningDMXWorth39 min
Mar 30, 2:36 PM CSTSevere Thunderstorm WarningDMXJasper24 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.