Alert archive / Illinois / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 189, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jul 14, 2023, 6:30 PM CDT for Henry County, Mercer County, Illinois. It was in force for 34 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 14, 2023, 6:30 PM CDT (23:30 UTC)
- Expired
- Jul 14, 2023, 7:04 PM CDT
- In force
- 34 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Henry County, IL, Mercer County, IL
The radar
The Quad Cities radar (KDVN), 39 km from the middle of the area, began a volume at 23:29 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 14, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 199 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.
- Mixed-layer CAPE
- 354 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
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 14, 2:47 PM CDT, 3 hours 43 minutes earlier.
Area forecast discussion, Jul 14, 2:47 PM CDT, 3 hours 43 minutes before
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</html>Hazardous weather outlook, Jul 14, 7:54 AM CDT, 10 hours 36 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 754 AM CDT Fri Jul 14 2023 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-151300- 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- 754 AM CDT Fri Jul 14 2023 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 Thunderstorms are expected especially this afternoon and tonight. The Storm Prediction Center has a slight risk of severe storms across most of the area. The primary severe risk is damaging winds with large hail as a secondary risk. Heavy rain and frequent lightning can be expected with any storm. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Daily chances for showers and thunderstorms exist through the period. There is a chance for strong to isolated severe storms each day. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening.
In the hours before
Special weather statement, Jul 14, 5:30 PM CDT, 1 hour before
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</html>Local storm report, Jul 14, 5:38 PM CDT, 52 minutes before
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</html>Special weather statement, Jul 14, 6:00 PM CDT, 30 minutes before
Special Weather Statement
National Weather Service Quad Cities IA/IL
600 PM CDT Fri Jul 14 2023
IAZ068-ILZ009-015>017-024-142345-
Mercer IL-Whiteside IL-Rock Island IL-Bureau IL-Henry IL-Scott IA-
600 PM CDT Fri Jul 14 2023
...Strong thunderstorms will impact portions of eastern Mercer,
southern Whiteside, Rock Island, northwestern Bureau, Henry and
southeastern Scott Counties through 645 PM CDT...
At 559 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Princeton to Aledo. Movement was east at
35 mph.
HAZARD...Winds up to 45 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Strong thunderstorms will be near...
Bettendorf, East Moline, Le Claire, Hampton and Princeton around
605 PM CDT.
Port Byron, Rapids City and Cordova around 610 PM CDT.
Boden around 615 PM CDT.
Other locations in the path of these storms include Cable, North
Henderson, New Windsor, Erie, New Windsor, Alpha, Prophetstown and
Woodhull.
This includes the following highways...
Interstate 74 in Iowa between mile markers 1 and 5.
Interstate 80 in Iowa between mile markers 297 and 306.
Interstate 80 in Illinois between mile markers 1 and 33.
Interstate 74 in Illinois between mile markers 1 and 33.
Interstate 88 between mile markers 1 and 16.
Interstate 280 between mile markers 10 and 18.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
north central and northwestern Illinois...and east central Iowa.
&&
LAT...LON 4115 9008 4115 9044 4109 9044 4113 9091
4168 9049 4169 8970
TIME...MOT...LOC 2259Z 271DEG 31KT 4165 9042 4119 9076
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
08Special weather statement, Jul 14, 6:06 PM CDT, 24 minutes before
Special Weather Statement
National Weather Service Quad Cities IA/IL
606 PM CDT Fri Jul 14 2023
IAZ054-066-068-ILZ007-009-015-142345-
Whiteside IL-Carroll IL-Rock Island IL-Scott IA-Clinton IA-
Jackson IA-
606 PM CDT Fri Jul 14 2023
...Strong thunderstorms will impact portions of Whiteside, Carroll,
northeastern Rock Island, northeastern Scott, eastern Clinton and
southeastern Jackson Counties through 645 PM CDT...
At 603 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Savanna to Albany. Movement was southeast at 30
mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Garden Plain and East Clinton around 610 PM CDT.
Mount Carroll around 615 PM CDT.
Argo Fay around 620 PM CDT.
Other locations in the path of these storms include Lanark,
Fairhaven, Chadwick, Lyndon, Milledgeville and Coleta.
This includes Interstate 88 between mile markers 20 and 40.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
northwestern Illinois...and east central Iowa.
&&
LAT...LON 4170 8970 4169 9048 4218 9027 4212 8969
4193 8969 4193 8968
TIME...MOT...LOC 2303Z 300DEG 27KT 4211 9013 4177 9022
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
DCSpecial weather statement, Jul 14, 6:12 PM CDT, 18 minutes before
Special Weather Statement
National Weather Service Quad Cities IA/IL
612 PM CDT Fri Jul 14 2023
IAZ089-099-ILZ024>026-150030-
Warren IL-Mercer IL-Henderson IL-Des Moines IA-Lee IA-
612 PM CDT Fri Jul 14 2023
...Strong thunderstorms will impact portions of Warren, southeastern
Mercer, Henderson, central Des Moines and northeastern Lee Counties
through 730 PM CDT...
At 611 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Seaton to Denmark. Movement was east at 35
mph.
HAZARD...Winds up to 35 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Strong thunderstorms will be near...
Seaton around 615 PM CDT.
Little York around 620 PM CDT.
West Burlington around 625 PM CDT.
Burlington and Lake Warren around 630 PM CDT.
Other locations in the path of these storms include Carman, Gulf
Port, North Henderson, Stronghurst, Biggsville and Raritan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
northwestern and west central Illinois...and southeastern Iowa.
&&
LAT...LON 4070 9146 4111 9083 4110 9044 4072 9044
4065 9050
TIME...MOT...LOC 2311Z 271DEG 32KT 4107 9084 4075 9133
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH
08The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 7:36 PM CDT | Special Weather Statement | DVN | Muscatine | 39 min |
| Jul 13, 10:44 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 46 min |
| Jul 14, 2:53 PM CDT | Special Weather Statement | DVN | Delaware | 67 min |
| Jul 14, 2:58 PM CDT | Special Weather Statement | DVN | Buchanan | 62 min |
| Jul 14, 3:15 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Jones, Linn | 45 min |
| Jul 14, 3:25 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones | 50 min |
| Jul 14, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 48 min |
| Jul 14, 4:32 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Jones | 58 min |
| Jul 14, 4:40 PM CDT | Special Weather Statement | DVN | Muscatine | 80 min |
| Jul 14, 4:44 PM CDT | Special Weather Statement | DVN | Delaware | 46 min |
| Jul 14, 5:11 PM CDT | Special Weather Statement | DVN | Des Moines | 49 min |
| Jul 14, 5:30 PM CDT | Special Weather Statement | DVN | Scott | 45 min |
| Jul 14, 5:32 PM CDT | Special Weather Statement | DVN | Clinton, Jackson | 43 min |
| Jul 14, 6:22 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 38 min |
| Jul 13, 8:01 PM CDT | Special Weather Statement | DVN | Whiteside | 44 min |
| Jul 13, 8:34 PM CDT | Special Weather Statement | DVN | Bureau | 26 min |
| Jul 13, 8:54 PM CDT | Special Weather Statement | DVN | Bureau | 36 min |
| Jul 13, 8:58 PM CDT | Severe Thunderstorm Warning | DVN | Bureau | 47 min |
| Jul 14, 6:00 PM CDT | Special Weather Statement | DVN | Henry, Mercer, Rock Island | 45 min |
| Jul 14, 6:06 PM CDT | Special Weather Statement | DVN | Carroll, Whiteside | 39 min |
| Jul 14, 6:12 PM CDT | Special Weather Statement | DVN | Henderson, Warren | 78 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2023Every severe thunderstorm warning in 2023
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.