Alert archive / Illinois / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 106, NWS Quad Cities, IA

July 24, 2022Carroll County, Jo Daviess County, Stephenson County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Jul 24, 2022, 1:38 AM CDT for Carroll County, Jo Daviess County, Stephenson County, Illinois. It was in force for 52 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: Jul 24, 2022, 1:38 AM CDT (06:38 UTC)
Expired: Jul 24, 2022, 2:30 AM CDT
In force: 52 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Carroll County, IL, Jo Daviess County, IL, Stephenson County, IL

The radar

The Quad Cities radar (KDVN), 90 km from the middle of the area, began a volume at 06:43 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 24, 12:41 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 6.6 hours before the alert went out and 85 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: 3986 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1390 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 3.4
Supercell composite: 26.8

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 Jul 24, 1:04 AM CDT, 34 minutes earlier.

Area forecast discussion, Jul 24, 1:04 AM CDT, 34 minutes before

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Hazardous weather outlook, Jul 23, 2:14 PM CDT, 11 hours 24 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
214 PM CDT Sat Jul 23 2022

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-241915-
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-
214 PM CDT Sat Jul 23 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...THIS AFTERNOON AND TONIGHT

Very hot conditions continue into early this evening, with peak
heat index readings ranging from 105 to 110 degrees. A few
localized areas may range from 110 to near 115 degrees this
afternoon. A Heat Advisory continues for the entire Outlook Area
today.

Strong complex of thunderstorms are moving very close to the area
from the northwest and may impact areas along and north of Highway
20 between 3 and 6 PM. More thunderstorms will occur this evening
and into tonight. There is a slight risk for severe storms,
generally along and north of the Interstate 80 corridor, with a
marginal risk to the south across much of the rest of the Outlook
Area. Damaging winds are the primary risk, with large hail and
isolated tornadoes secondary concerns. Locally heavy rainfall may
also occur.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

Strong to severe storms may linger into Sunday morning mainly
along and southeast of a line from Fairfield Iowa, to Geneseo
Illinois. These areas are in a Marginal Risk for severe storms.

Additional storm chances will return to the Outlook Area Tuesday
night into Wednesday. The risk for severe weather is still
uncertain at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and especially
tonight across portions of the Outlook Area.

Gunkel

In the hours before

Local storm report, Jul 24, 12:25 AM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1225 AM CDT SUN JUL 24 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1220 AM     TSTM WND DMG     DELHI                   42.43N 91.33W
07/24/2022                   DELAWARE           IA   EMERGENCY MNGR

            TREES DOWN OVER ROADS.

&&

12

Local storm report, Jul 24, 12:31 AM CDT, 1 hour 7 minutes before

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Local storm report, Jul 24, 12:48 AM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1248 AM CDT SUN JUL 24 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1248 AM     TSTM WND GST     SAGEVILLE               42.55N 90.70W
07/24/2022  E60 MPH          DUBUQUE            IA   EMERGENCY MNGR

&&

PS

Local storm report, Jul 24, 12:51 AM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1251 AM CDT SUN JUL 24 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1215 AM     TSTM WND DMG     MANCHESTER              42.48N 91.45W
07/24/2022                   DELAWARE           IA   EMERGENCY MNGR

            POWER LINES DOWN; ESTIMATED 1600 PEOPLE
            WITHOUT POWER.

&&

WOLF

Local storm report, Jul 24, 1:01 AM CDT, 37 minutes before

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Local storm report, Jul 24, 1:13 AM CDT, 25 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
Jul 23, 11:21 PM CDT	Special Weather Statement	DVN	Benton, Buchanan	39 min
Jul 23, 11:32 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	43 min
Jul 23, 11:56 PM CDT	Severe Thunderstorm Warning	DVN	Delaware	34 min
Jul 24, 12:06 AM CDT	Severe Thunderstorm Warning	DVN	Delaware, Jones, Linn	24 min
Jul 24, 12:25 AM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson, Jones, Linn	65 min
Jul 24, 1:16 AM CDT	Severe Thunderstorm Warning	DVN	Jackson	29 min
Jul 24, 3:43 AM CDT	Special Weather Statement	DVN	Stephenson	47 min
Jul 24, 4:01 AM CDT	Special Weather Statement	DVN	Carroll	29 min
Jul 24, 4:26 AM CDT	Special Weather Statement	DVN	Whiteside	19 min
Jul 24, 4:54 AM CDT	Special Weather Statement	DVN	Warren	36 min
Jul 24, 5:31 AM CDT	Special Weather Statement	DVN	Henderson	44 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2022 Every 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.