Alert archive / Iowa / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 60, NWS Sioux Falls, SD

June 19, 1996O'Brien County, Sioux County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 19, 1996, 9:00 PM CDT for O'Brien County, Sioux County, Iowa. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 19, 1996, 9:00 PM CDT (02:00 UTC)
Expired
Jun 19, 1996, 9:35 PM CDT
In force
35 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties O'Brien County, IA, Sioux County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.0 hours before the alert went out and 200 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 1996-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3601 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 00:00Z on 1996-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
3601 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1562 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
1.4
Supercell composite
19.9

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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 19, 5:57 PM CDT, 3 hours 3 minutes before
SDZ039-040-053>056-059>062-063>071-192350-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
600 PM CDT WED JUN 19 1996

...SEVERE THUNDERSTORM WATCH 640 CANCELED...

THE SEVERE THUNDERSTORM WATCH FOR A LARGE PART OF EAST CENTRAL AND
SOUTHEAST SOUTH DAKOTA HAS BEEN CANCELED AT 6 PM CDT. ALL SEVERE
WEATHER HAS MOVED TO THE EAST OF SOUTH DAKOTA BUT A FEW THUNDERSTORMS
MAY STILL LINGER UNTIL ABOUT 7 PM.

KOSCIELSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:44 PM CDTSevere Thunderstorm WarningFSDLincoln31 min
Jun 19, 8:10 PM CDTSevere Thunderstorm WarningFSDUnion30 min
Jun 20, 5:00 PM CDTSevere Thunderstorm WarningFSDBrule30 min
Jun 20, 5:00 PM CDTSevere Thunderstorm WarningFSDBeadle30 min
Jun 20, 6:00 PM CDTSevere Thunderstorm WarningFSDAurora, Davison30 min
Jun 20, 6:03 PM CDTSevere Thunderstorm WarningFSDMcCook32 min
Jun 20, 6:32 PM CDTSevere Thunderstorm WarningFSDDavison, Hanson33 min
Jun 19, 7:05 PM CDTSevere Thunderstorm WarningFSDOsceola45 min
Jun 19, 8:16 PM CDTSevere Thunderstorm WarningFSDSioux44 min
Jun 19, 9:18 PM CDTSevere Thunderstorm WarningFSDPlymouth32 min
Jun 19, 9:26 PM CDTSevere Thunderstorm WarningFSDCherokee44 min
Jun 19, 9:49 PM CDTSevere Thunderstorm WarningFSDWoodbury31 min
Jun 19, 9:50 PM CDTSevere Thunderstorm WarningFSDPlymouth35 min
Jun 19, 10:09 PM CDTSevere Thunderstorm WarningFSDCherokee, Ida31 min
Jun 19, 10:22 PM CDTSevere Thunderstorm WarningFSDIda, Woodbury33 min
Jun 19, 10:54 PM CDTSevere Thunderstorm WarningFSDIda31 min
Jun 19, 11:19 PM CDTSevere Thunderstorm WarningFSDIda, Woodbury31 min
Jun 19, 11:50 PM CDTSevere Thunderstorm WarningFSDPlymouth30 min
Jun 20, 12:04 AM CDTSevere Thunderstorm WarningFSDWoodbury46 min
Jun 20, 12:20 AM CDTSevere Thunderstorm WarningFSDPlymouth15 min
Jun 20, 12:52 AM CDTSevere Thunderstorm WarningFSDWoodbury23 min
Jun 20, 1:26 AM CDTFlash Flood WarningFSDIda3 hr
Jun 20, 8:32 AM CDTFlash Flood WarningFSDIda5 hr
Jun 20, 2:13 PM CDTSevere Thunderstorm WarningFSDWoodbury32 min
Jun 20, 2:24 PM CDTSevere Thunderstorm WarningFSDDickinson46 min
Jun 20, 2:45 PM CDTSevere Thunderstorm WarningFSDWoodbury30 min
Jun 20, 3:04 PM CDTSevere Thunderstorm WarningFSDPlymouth46 min
Jun 20, 3:18 PM CDTSevere Thunderstorm WarningFSDWoodbury47 min
Jun 20, 3:51 PM CDTSevere Thunderstorm WarningFSDPlymouth34 min
Jun 20, 3:55 PM CDTSevere Thunderstorm WarningFSDCherokee35 min
Jun 20, 4:37 PM CDTSevere Thunderstorm WarningFSDWoodbury33 min
Jun 20, 6:09 PM CDTSevere Thunderstorm WarningFSDCherokee, Ida31 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1996Every severe thunderstorm warning in 1996

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.