Alert archive / Iowa / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 46, NWS Quad Cities, IA

May 24, 1996Keokuk County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at May 24, 1996, 9:41 AM CDT for Keokuk County, Iowa. It was in force for 64 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 24, 1996, 9:41 AM CDT (14:41 UTC)
Expired: May 24, 1996, 10:45 AM CDT
In force: 64 min
Issued by: NWS Quad Cities, IA
Area: Whole counties

County Keokuk County, IA

What was reported inside it

Time	Report	Where	Remark
May 24, 10:09 AM CDT	Hail 1.75	Delta, 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 nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 2.7 hours before the alert went out and 143 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 710 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 352 m²/s²
0-3 km storm-relative helicity: 374 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 May 24, 9:17 AM CDT, 24 minutes earlier.

Area forecast discussion, May 24, 9:17 AM CDT, 24 minutes before

AREA FORECAST DISCUSSION...
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
910 AM CDT FRI MAY 24 1996

MB CURVE SATELLITE IMAGERY ALONG WITH DVN WSR-88D REF LOOP INDICATED
MCS AFFECTING NORTHERN PORTION OF CWA...WITH TRW ECHO TRAINING OCCURRING
ALONG A CLINTON-IOWA CITY-NEWTON LINE.

CURRENT EXTRAPOLATION OF MCS SYSTEM POINTS TO ACTIVITY ENDING BY
EARLY AFTERNOON. IT APPEARS SOUTHERN CWA COUNTIES WILL ESCAPE THE
MAIN BRUNT. TEMPERATURES THIS AFTERNOON SHOULD BE SLUGGISH TO RISE
WITH PLENTY OF LOW CIG DEBRIS LEFTOVER.

CID 054/++  DBQ 054/++  MLI 060/++  BRL 063/++

BERG

In the hours before

Special weather statement, May 24, 4:13 AM CDT, 5 hours 28 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 10:28 AM CDT	Severe Thunderstorm Warning	DVN	Keokuk	62 min
May 24, 10:35 AM CDT	Severe Thunderstorm Warning	DVN	Scott	55 min
May 24, 10:54 AM CDT	Severe Thunderstorm Warning	DVN	Jefferson	66 min
May 24, 11:09 AM CDT	Severe Thunderstorm Warning	DVN	Henry, Washington	66 min
May 24, 11:39 AM CDT	Severe Thunderstorm Warning	DVN	Keokuk	36 min
May 24, 11:48 AM CDT	Severe Thunderstorm Warning	DVN	Louisa	57 min
May 24, 11:58 AM CDT	Severe Thunderstorm Warning	DVN	Jefferson	62 min
May 24, 12:07 PM CDT	Severe Thunderstorm Warning	DVN	Henry	68 min
May 24, 1:00 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines	45 min
May 24, 1:05 PM CDT	Severe Thunderstorm Warning	DVN	Lee	25 min
May 24, 12:49 PM CDT	Severe Thunderstorm Warning	DVN	Mercer	56 min
May 24, 1:00 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson	45 min
May 24, 1:41 PM CDT	Severe Thunderstorm Warning	DVN	McDonough	64 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1996 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.