Alert archive / Iowa / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 27, NWS Quad Cities, IA

April 19, 1996Jones County, Linn County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 19, 1996, 7:15 PM CDT for Jones County, Linn County, Iowa. It was in force for 45 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
Apr 19, 1996, 7:15 PM CDT (00:15 UTC)
Expired
Apr 19, 1996, 8:00 PM CDT
In force
45 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

Counties Jones County, IA, Linn County, IA

The radar

The Quad Cities radar (KDVN), 85 km from the middle of the area, began a volume at 00:17 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 nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.3 hours before the alert went out and 89 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, Davenport, at 00:00Z on 1996-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 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, Davenport, at 00:00Z on 1996-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 497 square meters per square second.1939587897117Sfc1 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
92 J/kg
Mixed-layer CIN
-200 J/kg
Mixed-layer LCL
1735 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
497 m²/s²
0-3 km storm-relative helicity
621 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.3

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.

NWS Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 19, 7:05 PM CDT, 10 minutes earlier.

Area forecast discussion, Apr 19, 7:05 PM CDT, 10 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
705 PM CDT FRI APR 19 1996

NO AFD TONIGHT DUE TO SEVERE WEATHER.

WOLF

In the hours before

Local storm report, Apr 19, 5:45 PM CDT, 1 hour 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
542 PM CDT FRI APR 19 1996

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
DATE(CDT)  ....COUNTY LOCATION....

60541 PM    5 N DANVILLE              IA   1.75 INCH HAIL
04/19/96   DES MOINES                     GOLF BALL SIZE HAIL REPORTED
Local storm report, Apr 19, 5:56 PM CDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
551 PM CDT FRI APR 19 1996

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
DATE(CDT)  ....COUNTY LOCATION....

`0547 PM    6 N OQUAWKA               IA   1.00 INCH HAIL
04/19/96   DES MOINES

0549 PM    5 SW MEDIAPOLIS           IA   1.00 INCH HAIL
04/19/96   DES MOINES
Local storm report, Apr 19, 6:15 PM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
611 PM CDT FRI APR 19 1996

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
DATE(CDT)  ....COUNTY LOCATION....

0610       .5 NE BALD BLUFF          IL   TORNADO
04/19/96   HENDERSON                      SEVERAL OUT BUILDINGS
                                          DESTROYED
Local storm report, Apr 19, 6:44 PM CDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
642 PM CDT FRI APR 19 1996

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
DATE(CDT)  ....COUNTY LOCATION....

06639 PM    LYNN CENTER               IL   1.75 INCH HAIL
04/19/96   HENRY
Local storm report, Apr 19, 6:53 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
651 PM CDT FRI APR 19 1996

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
DATE(CDT)  ....COUNTY LOCATION....

R0650 PM    CAMBRIDGE                 IL   1.75 INCH HAIL
04/19/96   HENRY
Local storm report, Apr 19, 7:15 PM CDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
710 PM CDT FRI APR 19 1996

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
DATE(CDT)  ....COUNTY LOCATION....

0702 PM    2 S BISHOP HILL           IL   TORNADO
04/19/96   HENRY

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 7:49 PM CDTTornado WarningDVNJackson41 min
Apr 19, 8:05 PM CDTTornado WarningDVNClinton40 min
Apr 19, 7:04 PM CDTTornado WarningDVNBureau41 min
Apr 19, 7:35 PM CDTTornado WarningDVNBureau, Putnam40 min
Apr 19, 9:11 PM CDTSevere Thunderstorm WarningDVNStephenson49 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; radar from the NEXRAD Level II archive.