Alert archive / Iowa / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 177, NWS Quad Cities, IA

May 24, 2024Dubuque County, Jackson County, Jones County, Iowa; Jo Daviess County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at May 24, 2024, 2:48 PM CDT for Dubuque County, Jackson County, Jones County, Iowa; Jo Daviess County, Illinois. It was in force for 42 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: May 24, 2024, 2:48 PM CDT (19:48 UTC)
Expired: May 24, 2024, 3:30 PM CDT
In force: 42 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dubuque County, IA, Jackson County, IA, Jones County, IA, Jo Daviess County, IL

The radar

The Quad Cities radar (KDVN), 75 km from the middle of the area, began a volume at 19:51 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
May 24, 6:07 AM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 7.8 hours before the alert went out and 75 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: 1392 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 771 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.9

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 May 24, 12:37 PM CDT, 2 hours 11 minutes earlier.

Area forecast discussion, May 24, 12:37 PM CDT, 2 hours 11 minutes before

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Hazardous weather outlook, May 24, 1:06 PM CDT, 1 hour 42 minutes before

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In the hours before

Local storm report, May 24, 12:32 PM CDT, 2 hours 16 minutes before

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Special weather statement, May 24, 1:39 PM CDT, 1 hour 9 minutes before

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Local storm report, May 24, 1:48 PM CDT, 1 hour before

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Special weather statement, May 24, 2:06 PM CDT, 42 minutes before

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Local storm report, May 24, 2:13 PM CDT, 35 minutes before

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Special weather statement, May 24, 2:33 PM CDT, 15 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 23, 9:08 PM CDT	River Flood Warning	DVN	Clinton, Scott	15 days
May 23, 9:16 PM CDT	River Flood Watch	DVN	Des Moines, Louisa	47 hr
May 23, 10:07 PM CDT	River Flood Watch	DVN	Des Moines, Henry, Lee	4 days
May 24, 2:38 AM CDT	Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	13 hr
May 24, 3:37 AM CDT	Severe Thunderstorm Warning	DVN	Jefferson, Keokuk, Washington	38 min
May 24, 4:11 AM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Louisa, Washington	49 min
May 24, 4:47 AM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine, Washington	43 min
May 24, 5:01 AM CDT	Severe Thunderstorm Warning	DVN	Jones, Linn	44 min
May 24, 5:16 AM CDT	Severe Thunderstorm Warning	DVN	Iowa, Keokuk	59 min
May 24, 5:54 AM CDT	Tornado Warning	DVN	Iowa, Keokuk, Washington	51 min
May 24, 6:05 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Iowa, Jefferson, Johnson, Keokuk, Washington	40 min
May 24, 6:13 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	47 min
May 24, 6:29 AM CDT	Tornado Warning	DVN	Iowa, Johnson, Louisa, Washington	46 min
May 24, 6:38 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 6 more	67 min
May 24, 6:45 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Cedar, Delaware, Dubuque, Jones and 1 more	60 min
May 24, 7:02 AM CDT	Tornado Warning	DVN	Cedar, Johnson, Jones, Linn, Muscatine	43 min
May 24, 7:08 AM CDT	Tornado Warning	DVN	Delaware, Dubuque, Jones, Linn	52 min
May 24, 7:32 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Cedar, Clinton, Des Moines, Louisa, Muscatine, Scott	58 min
May 24, 7:39 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Delaware, Dubuque, Jackson, Jones	66 min
May 24, 7:39 AM CDT	Tornado Warning	DVN	Cedar, Clinton, Jackson, Jones, Scott	51 min
May 24, 7:54 AM CDT	Tornado Warning	DVN	Dubuque, Jackson	36 min
May 24, 8:00 AM CDT	Tornado Warning	DVN	Clinton, Jackson, Scott	45 min
May 24, 8:26 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	64 min
May 24, 8:27 AM CDT	Tornado Warning	DVN	Jackson	48 min
May 24, 8:37 AM CDT	Tornado Warning	DVN	Clinton, Jackson	53 min
May 24, 8:43 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	47 min
May 24, 10:03 AM CDT	Severe Thunderstorm Warning	DVN	Lee	42 min
May 24, 10:42 AM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Louisa, Muscatine	22 min
May 24, 12:45 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque	32 min
May 24, 1:39 PM CDT	Special Weather Statement	DVN	Dubuque	21 min
May 24, 2:06 PM CDT	Special Weather Statement	DVN	Dubuque	9 min
May 24, 2:33 PM CDT	Special Weather Statement	DVN	Dubuque, Jones	42 min
May 24, 3:53 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Muscatine, Scott	32 min
May 24, 4:45 PM CDT	River Flood Warning	DVN	Louisa	10 days
May 24, 4:45 PM CDT	River Flood Warning	DVN	Louisa	10 days
May 24, 4:56 PM CDT	River Flood Warning	DVN	Cedar, Johnson, Muscatine	4 days
May 24, 5:06 PM CDT	Special Weather Statement	DVN	Clinton, Scott	39 min
May 24, 5:30 PM CDT	Special Weather Statement	DVN	Scott	45 min
May 24, 7:50 AM CDT	Tornado Warning	DVN	Henry, Rock Island	40 min
May 24, 8:24 AM CDT	Tornado Warning Tornado observed	DVN	Bureau, Henry, Whiteside	51 min
May 24, 8:56 AM CDT	Tornado Warning	DVN	Stephenson	49 min
May 24, 9:26 AM CDT	Severe Thunderstorm Warning	DVN	Stephenson	34 min
May 24, 9:30 AM CDT	Tornado Warning	DVN	Stephenson	20 min
May 24, 11:02 AM CDT	Severe Thunderstorm Warning	DVN	Henderson, Warren	28 min
May 24, 11:37 AM CDT	Tornado Warning	DVN	Hancock, McDonough	38 min
May 24, 12:08 PM CDT	Tornado Warning	DVN	Hancock, McDonough, Warren	34 min
May 24, 12:19 PM CDT	Severe Thunderstorm Warning	DVN	McDonough, Warren	30 min
May 24, 2:46 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry	24 min
May 24, 4:00 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry	23 min
May 24, 4:21 PM CDT	Special Weather Statement	DVN	Jo Daviess, Stephenson	54 min
May 24, 6:13 PM CDT	Special Weather Statement	DVN	Whiteside	47 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2024 Severe Thunderstorm Warnings in Illinois, 2024 Every severe thunderstorm warning in 2024

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.