Alert archive / Iowa / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 82, NWS Des Moines, IA

June 13, 2000Adair County, Adams County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 13, 2000, 5:40 PM CDT for Adair County, Adams County, Iowa. It was in force for 35 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, 5:40 PM CDT (22:40 UTC)
Expired
Jun 13, 2000, 6:15 PM CDT
In force
35 min
Issued by
NWS Des Moines, IA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Adair County, IA, Adams County, IA

The radar

The Des Moines radar (KDMX), 93 km from the middle of the area, began a volume at 22:43 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, 5:40 PM CDTThunderstorm Wind 50 EBridgewater, IA
Jun 13, 5:50 PM CDTThunderstorm Wind 50 EGreenfield, 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
Jun 13, 5:30 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.7 hours before the alert went out and 146 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 132241
SVRDSM
IAC001-003-132315-

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

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ADAIR COUNTY IN SOUTHWEST IOWA
  ADAMS COUNTY IN SOUTHWEST IOWA

* UNTIL 615 PM

* AT 538 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
  OF SEVERE THUNDERSTORMS FROM 8 MILES NORTH OF GREENFIELD TO 9 MILES
  WEST OF CORNING...OR FROM 45 MILES WEST OF DES MOINES TO 53 MILES
  EAST OF COUNCIL BLUFFS...MOVING EAST AT 70 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  NEAR CORNING AND GREENFIELD AROUND 550 PM

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.

LAT...LON 4149 9468 4116 9471 4094 9490 4093 9455
          4145 9427

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, 5:01 PM CDTSevere Thunderstorm WarningDMXAdams, Cass44 min
Jun 13, 5:21 PM CDTSevere Thunderstorm WarningDMXWebster39 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.