Alert archive / Iowa / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 149, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 24, 2023, 6:08 PM CDT for Van Buren County, Iowa. 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
- Jun 24, 2023, 6:08 PM CDT (23:08 UTC)
- Expired
- Jun 24, 2023, 7:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 60.0 mph
County Van Buren County, IA
The radar
The Quad Cities radar (KDVN), 149 km from the middle of the area, began a volume at 23:09 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 |
|---|---|---|---|
| Jun 24, 1:35 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.1 hours before the alert went out and 155 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2269 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 24, 6:07 PM CDT, 1 minute earlier.
Area forecast discussion, Jun 24, 6:07 PM CDT, 1 minute before
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</html>Hazardous weather outlook, Jun 24, 2:17 PM CDT, 3 hours 51 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 217 PM CDT Sat Jun 24 2023 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-251930- 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- 217 PM CDT Sat Jun 24 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...THIS AFTERNOON AND TONIGHT Tornado Watch in effect for our western counties until 7 pm this evening. Severe storms are possible this afternoon and tonight. The storm prediction center has nearly all of the outlook area within a level 2, slight risk for severe storms. The main risk will be from hail up to golf ball size, and damaging winds, with an isolated tornado threat as well. After another hot day, a cold front will near the area this evening. Supercell thunderstorms are expected to form over central and east central Iowa late this afternoon, then evolve into a cluster of storms, or a line, and move east across the entire outlook area. Main hazards with the line of storms will be damaging winds, with a continuation of a tornado threat along the line. Heavy rains are possible from storms, but the risk for flooding is low due to the ongoing drought. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Thunderstorms are possible Sunday into Sunday evening. There is also a chance for isolated thunderstorms on Monday afternoon. Severe thunderstorms are not expected Sunday or Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible late this afternoon into this evening. Gunkel/Cousins
In the hours before
Special weather statement, Jun 24, 12:32 PM CDT, 5 hours 36 minutes before
Special Weather Statement
National Weather Service Quad Cities IA/IL
1232 PM CDT Sat Jun 24 2023
IAZ063-064-241815-
Iowa IA-Johnson IA-
1232 PM CDT Sat Jun 24 2023
...A strong thunderstorm will impact portions of northeastern Keokuk,
Johnson, northern Washington and Iowa Counties through 115 PM CDT...
At 1231 PM CDT, Doppler radar was tracking a strong thunderstorm over
Parnell, or 13 miles south of Marengo, moving east at 35 mph.
HAZARD...Wind gusts up to 50 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.
This strong thunderstorm will be near...
Parnell around 1235 PM CDT.
Williamsburg and Conroy around 1240 PM CDT.
Other locations in the path of this storm include Oxford, Coralville,
Tiffin, Iowa City, North Liberty, Solon, University Heights, Oakdale
and Lake Macbride State Park.
This includes the following highways...
Interstate 80 in Iowa between mile markers 209 and 245.
Interstate 380 between mile markers 1 and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4171 9223 4186 9178 4186 9150 4151 9154
4151 9218
TIME...MOT...LOC 1731Z 249DEG 31KT 4160 9205
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
FriedleinThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 12:32 PM CDT | Special Weather Statement | DVN | Iowa, Johnson | 43 min |
| Jun 24, 5:20 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 40 min |
| Jun 24, 5:37 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 38 min |
| Jun 24, 6:43 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Lee, Van Buren | 47 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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.