Alert archive / Iowa / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 25, NWS Sioux Falls, SD

May 23, 1989Cherokee County, Ida County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 23, 1989, 11:34 PM CDT for Cherokee County, Ida County, Iowa. It was in force for 56 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 23, 1989, 11:34 PM CDT (04:34 UTC)
Expired
May 24, 1989, 12:30 AM CDT
In force
56 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Cherokee County, IA, Ida County, IA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 24, 12:13 AM CDTThunderstorm Wind 52Ida, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 4.6 hours before the alert went out and 153 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 00:00Z on 1989-05-24Temperature 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 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 00:00Z on 1989-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897Sfc1 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
3566 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 7:52 PM CDTSevere Thunderstorm WarningFSDGregory, Tripp53 min
May 23, 9:51 PM CDTSevere Thunderstorm WarningFSDBon Homme39 min
May 23, 7:27 PM CDTSevere Thunderstorm WarningFSDLyon48 min
May 23, 7:27 PM CDTSevere Thunderstorm WarningFSDOsceola48 min
May 23, 8:07 PM CDTTornado WarningFSDLyon, Osceola38 min
May 23, 8:21 PM CDTSevere Thunderstorm WarningFSDO'Brien69 min
May 23, 8:22 PM CDTSevere Thunderstorm WarningFSDOsceola38 min
May 23, 8:37 PM CDTSevere Thunderstorm WarningFSDSioux38 min
May 23, 9:29 PM CDTSevere Thunderstorm WarningFSDCherokee61 min
May 24, 12:32 AM CDTSevere Thunderstorm WarningFSDIda28 min
May 23, 7:06 PM CDTSevere Thunderstorm WarningFSDNobles39 min
May 23, 7:53 PM CDTSevere Thunderstorm WarningFSDNobles37 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1989Every severe thunderstorm warning in 1989

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.