Alert archive / Iowa / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 80, NWS Des Moines, IA

June 13, 2000Adams County, Cass County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 13, 2000, 5:01 PM CDT for Adams County, Cass County, Iowa. It was in force for 44 min. 2 reports 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
Jun 13, 2000, 5:01 PM CDT (22:01 UTC)
Expired
Jun 13, 2000, 5:45 PM CDT
In force
44 min
Issued by
NWS Des Moines, IA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Adams County, IA, Cass County, IA

The radar

The Des Moines radar (KDMX), 113 km from the middle of the area, began a volume at 22:03 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.

What was reported inside it

TimeReportWhereRemark
Jun 13, 5:15 PM CDTThunderstorm Wind 52 ELincoln Center, IA
Jun 13, 5:29 PM CDTThunderstorm Wind 69 ECumberland, 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
Jun 13, 2:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.0 hours before the alert went out and 127 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 2000-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 997 joules per kilogram.LCLLFCEL10008507005003002001001 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, Omaha, NE at 12:00Z on 2000-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
997 J/kg
Mixed-layer CIN
-254 J/kg
Mixed-layer LCL
1473 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
83 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 
WUUS53 KDMX 132201
SVRDSM
IAC003-029-132245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
501 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ADAMS COUNTY IN SOUTHWEST IOWA
  SOUTHEASTERN CASS COUNTY IN SOUTHWEST IOWA

* UNTIL 545 PM

* AT 458 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF CUMBERLAND...OR ABOUT 48
  MILES EAST OF COUNCIL BLUFFS...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR MASSENA AROUND 510 PM

HAIL UP TO THE SIZE OF QUARTERS IS LIKELY IN THE WARNED AREA.

HURRICANE FORCE WINDS OF 70 TO 80 MILES AN HOUR ARE LIKELY IN THE
WARNED AREA.

STAY AWAY FROM WINDOWS DURING A SEVERE STORM...WIND GUSTS OVER 70 MPH
COULD BLOW THEM OUT.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. RMEMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

LAT...LON 4128 9498 4100 9493 4106 9471 4130 9471

JUNGBLUTH
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 11:50 AM CDTSevere Thunderstorm WarningDMXCalhoun, Pocahontas25 min
Jun 13, 12:27 PM CDTSevere Thunderstorm WarningDMXLucas33 min
Jun 13, 12:57 PM CDTSevere Thunderstorm WarningDMXPolk33 min
Jun 13, 1:13 PM CDTSevere Thunderstorm WarningDMXStory47 min
Jun 13, 1:34 PM CDTSevere Thunderstorm WarningDMXHamilton, Wright41 min
Jun 13, 1:44 PM CDTSevere Thunderstorm WarningDMXMarshall31 min
Jun 13, 2:09 PM CDTSevere Thunderstorm WarningDMXGrundy, Tama36 min
Jun 13, 2:13 PM CDTSevere Thunderstorm WarningDMXDavis, Wapello32 min
Jun 13, 2:31 PM CDTSevere Thunderstorm WarningDMXBlack Hawk, Bremer44 min
Jun 13, 4:28 PM CDTSevere Thunderstorm WarningDMXPalo Alto32 min
Jun 13, 4:34 PM CDTSevere Thunderstorm WarningDMXCass26 min
Jun 13, 4:56 PM CDTSevere Thunderstorm WarningDMXKossuth34 min
Jun 13, 5:21 PM CDTSevere Thunderstorm WarningDMXWebster39 min
Jun 13, 5:40 PM CDTSevere Thunderstorm WarningDMXAdair, Adams35 min
Jun 13, 6:19 PM CDTSevere Thunderstorm WarningDMXHamilton, Story41 min
Jun 13, 6:37 PM CDTSevere Thunderstorm WarningDMXHardin38 min
Jun 13, 6:57 PM CDTTornado WarningDMXMarshall33 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2000Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.