Alert archive / Iowa / Tornado Warnings in 2000

Tornado Warning 32, NWS Des Moines, IA

November 1, 2000Tama County, Iowa

NWS Des Moines, IA issued this tornado warning at Nov 1, 2000, 3:19 PM CST for Tama County, Iowa. It was in force for 16 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Nov 1, 2000, 3:19 PM CST (21:19 UTC)
Expired
Nov 1, 2000, 3:35 PM CST
In force
16 min
Issued by
NWS Des Moines, IA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Tama County, IA

What was reported inside it

TimeReportWhereRemark
Nov 1, 3:35 PM CSTThunderstorm Wind 61 EKeystone, IA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 1, 3:00 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.3 hours before the alert went out and 151 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, Davenport, at 12:00Z on 2000-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 305 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, Davenport, at 12:00Z on 2000-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
305 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
759 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDMX 012120
TORDSM

IAC171-012135-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
319 PM CST WED NOV 1 2000

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN TAMA COUNTY IN CENTRAL IOWA

* UNTIL 335 PM

* AT 320 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 6 MILES SOUTH OF CHELSEA...OR ABOUT 37 MILES WEST OF CEDAR
  RAPIDS...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO WILL BE...
  6 MILES SOUTHEAST OF VINING AROUND 325 PM
  NEAR ELBERON AROUND 330 PM

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.



LAT...LON 4187 9249 4186 9230 4232 9177 4245 9205

KULA
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 1, 1:39 PM CSTSevere Thunderstorm WarningDMXTama31 min
Nov 1, 2:27 PM CSTSevere Thunderstorm WarningDMXMahaska, Poweshiek38 min
Nov 1, 3:03 PM CSTTornado WarningDMXPoweshiek32 min
Nov 1, 3:08 PM CSTSevere Thunderstorm WarningDMXClarke, Decatur37 min

Nearby

Tornado Warnings in Iowa, 2000Every tornado warning in 2000Tornadoes in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.