Alert archive / Iowa / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 114, NWS Quad Cities, IA

August 2, 2022Benton County, Iowa County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Aug 2, 2022, 3:59 AM CDT for Benton County, Iowa County, Iowa. It was in force for 31 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
Aug 2, 2022, 3:59 AM CDT (08:59 UTC)
Expired
Aug 2, 2022, 4:30 AM CDT
In force
31 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Benton County, IA, Iowa County, IA

The radar

The Quad Cities radar (KDVN), 127 km from the middle of the area, began a volume at 09:01 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, 9.0 hours before the alert went out and 133 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 2022-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 472 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 2022-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
472 J/kg
Mixed-layer CIN
-189 J/kg
Mixed-layer LCL
1345 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

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 Aug 2, 2:46 AM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Aug 2, 2:46 AM CDT, 1 hour 13 minutes before
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Hazardous weather outlook, Aug 2, 3:51 AM CDT, 8 minutes before
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
351 AM CDT Tue Aug 2 2022

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-030900-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
351 AM CDT Tue Aug 2 2022

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

Temperatures and humidity on the rise will lead to heat indices
between 100 to 105 today. Thus, a Heat Advisory has been issued
from 1 PM to 8 PM today.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Threat for thunderstorms on Wednesday, where some may be strong to
severe in the afternoon. If the showers and storms don't
materialize, we will see temperatures in the 90s again, with high
humidity. Thus, heat headlines will be possible for heat index
values near or over 100.

Next chance for possible heat headlines will be over the weekend,
with temperatures over 90 and increasing humidity once again.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

Gibbs/Gunkel

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 2:44 AM CDTHeat AdvisoryDVNBenton, Cedar, Des Moines, Henry, Iowa, Jefferson and 9 more17 hr
Aug 2, 4:23 AM CDTSpecial Weather StatementDVNJohnson52 min
Aug 2, 5:01 AM CDTSpecial Weather StatementDVNCedar, Muscatine44 min
Aug 2, 5:11 AM CDTSevere Thunderstorm WarningDVNCedar, Johnson, Muscatine31 min
Aug 2, 5:36 AM CDTSpecial Weather StatementDVNScott39 min
Aug 2, 6:15 AM CDTSpecial Weather StatementDVNDes Moines, Louisa60 min
Aug 2, 6:38 AM CDTSevere Thunderstorm WarningDVNDes Moines23 min
Aug 2, 6:13 AM CDTSpecial Weather StatementDVNBureau, Henry62 min
Aug 2, 7:20 AM CDTSpecial Weather StatementDVNHenderson, McDonough, Warren55 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2022Every severe thunderstorm warning in 2022

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.