Alert archive / Iowa / Tornado Warnings in 2003

Tornado Warning 19, NWS Des Moines, IA

May 13, 2003Calhoun County, Carroll County, Greene County, Iowa

NWS Des Moines, IA issued this tornado warning at May 13, 2003, 7:42 PM CDT for Calhoun County, Carroll County, Greene County, Iowa. It was in force for 63 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
May 13, 2003, 7:42 PM CDT (00:42 UTC)
Expired
May 13, 2003, 8:45 PM CDT
In force
63 min
Issued by
NWS Des Moines, IA
Area
Counties, with a storm outline in the text

Counties Calhoun County, IA, Carroll County, IA, Greene County, IA

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 309 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 00:00Z on 2003-05-14Temperature 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 00:00Z on 2003-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.19395878Sfc1 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
2419 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
94 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.

758 
WFUS53 KDMX 140042
TORDMX
IAC025-027-073-140145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
742 PM CDT TUE MAY 13 2003

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CALHOUN COUNTY IN WEST CENTRAL IOWA
  NORTHEASTERN CARROLL COUNTY IN WEST CENTRAL IOWA
  NORTHWESTERN GREENE COUNTY IN WEST CENTRAL IOWA

* UNTIL 845 PM CDT

* AT 736 PM...RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO 5 MILES NORTHEAST OF GLIDDEN...OR ABOUT 37 MILES SOUTHWEST
  OF FORT DODGE...MOVING EAST AT 20 MPH.

* THE STORM WILL BE...

  5 MILES SOUTH OF CHURDAN AROUND 800 PM.

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

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 4226 9481 4204 9480 4206 9443 4228 9445

RUSSELL

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 7:05 PM CDTSevere Thunderstorm WarningDMXCalhoun, Carroll, Sac25 min
May 13, 7:31 PM CDTSevere Thunderstorm WarningDMXCalhoun, Greene59 min
May 13, 8:30 PM CDTSevere Thunderstorm WarningDMXGreene45 min
May 13, 8:48 PM CDTSevere Thunderstorm WarningDMXAdair, Cass27 min
May 13, 9:02 PM CDTSevere Thunderstorm WarningDMXGuthrie28 min
May 14, 1:58 PM CDTSevere Thunderstorm WarningDMXDallas47 min
May 14, 2:06 PM CDTSevere Thunderstorm WarningDMXHancock24 min
May 14, 2:08 PM CDTSevere Thunderstorm WarningDMXWinnebago52 min
May 14, 2:09 PM CDTSevere Thunderstorm WarningDMXJasper51 min
May 14, 2:13 PM CDTSevere Thunderstorm WarningDMXCerro Gordo, Worth62 min
May 14, 2:24 PM CDTSevere Thunderstorm WarningDMXCass51 min
May 14, 2:35 PM CDTSevere Thunderstorm WarningDMXMarshall25 min
May 14, 2:37 PM CDTSevere Thunderstorm WarningDMXCerro Gordo53 min
May 14, 2:53 PM CDTSevere Thunderstorm WarningDMXPoweshiek52 min
May 14, 3:24 PM CDTSevere Thunderstorm WarningDMXMarion, Warren36 min
May 14, 4:04 PM CDTSevere Thunderstorm WarningDMXBlack Hawk41 min
May 14, 4:15 PM CDTSevere Thunderstorm WarningDMXButler15 min
May 14, 4:24 PM CDTSevere Thunderstorm WarningDMXAppanoose36 min
May 14, 4:26 PM CDTSevere Thunderstorm WarningDMXWayne34 min
May 14, 5:23 PM CDTSevere Thunderstorm WarningDMXGrundy, Tama37 min
May 14, 5:30 PM CDTSevere Thunderstorm WarningDMXHamilton30 min
May 14, 6:11 PM CDTSevere Thunderstorm WarningDMXDallas19 min

Nearby

Tornado Warnings in Iowa, 2003Every tornado warning in 2003Tornadoes in 2003

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.