Alert archive / Iowa / Tornado Warnings in 2000

Tornado Warning 18, NWS Des Moines, IA

June 13, 2000Marshall County, Iowa

NWS Des Moines, IA issued this tornado warning at Jun 13, 2000, 6:57 PM CDT for Marshall County, Iowa. It was in force for 33 min. No storm report in the archive falls 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.

The facts

Issued: Jun 13, 2000, 6:57 PM CDT (23:57 UTC)
Expired: Jun 13, 2000, 7:30 PM CDT
In force: 33 min
Issued by: NWS Des Moines, IA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Marshall County, IA

The radar

The Des Moines radar (KDMX), 66 km from the middle of the area, began a volume at 23:58 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.

Issued	Product	Office	Lasted
Jun 13, 5:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 12.0 hours before the alert went out and 218 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 671 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 366 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDMX 132357
TORDSM
IAC127-140030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
657 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  MARSHALL COUNTY IN CENTRAL IOWA

* UNTIL 730 PM

* AT 653 PM...THE PUBLIC REPORTED A TORNADO OVER STATE CENTER...OR
  ABOUT 40 MILES NORTHEAST OF DES MOINES...MOVING NORTHEAST AT 60
  MPH.

* THE TORNADO WILL BE...
  NEAR ALBION AROUND 710 PM
  NEAR MARSHALLTOWN AT 715 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 4217 9325 4188 9320 4190 9280 4220 9282

JUNGBLUTH
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 11:50 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas	25 min
Jun 13, 12:27 PM CDT	Severe Thunderstorm Warning	DMX	Lucas	33 min
Jun 13, 12:57 PM CDT	Severe Thunderstorm Warning	DMX	Polk	33 min
Jun 13, 1:13 PM CDT	Severe Thunderstorm Warning	DMX	Story	47 min
Jun 13, 1:34 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Wright	41 min
Jun 13, 1:44 PM CDT	Severe Thunderstorm Warning	DMX	Marshall	31 min
Jun 13, 2:09 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Tama	36 min
Jun 13, 2:13 PM CDT	Severe Thunderstorm Warning	DMX	Davis, Wapello	32 min
Jun 13, 2:31 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer	44 min
Jun 13, 4:28 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto	32 min
Jun 13, 4:34 PM CDT	Severe Thunderstorm Warning	DMX	Cass	26 min
Jun 13, 4:56 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	34 min
Jun 13, 5:01 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Cass	44 min
Jun 13, 5:21 PM CDT	Severe Thunderstorm Warning	DMX	Webster	39 min
Jun 13, 5:40 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams	35 min
Jun 13, 6:19 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Story	41 min
Jun 13, 6:37 PM CDT	Severe Thunderstorm Warning	DMX	Hardin	38 min

Nearby

Tornado Warnings in Iowa, 2000 Every tornado warning in 2000 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.