Alert archive / Illinois / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 51, NWS Quad Cities, IA

May 25, 2010Bureau County, Henry County, Whiteside County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at May 25, 2010, 12:32 AM CDT for Bureau County, Henry County, Whiteside County, Illinois. It was in force for 28 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 25, 2010, 12:32 AM CDT (05:32 UTC)
Expired: May 25, 2010, 1:00 AM CDT
In force: 28 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 58.0 mph

Counties Bureau County, IL, Henry County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 61 km from the middle of the area, began a volume at 05:34 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

Lincoln, IL (KILX), launched 00:00Z, 5.5 hours before the alert went out and 184 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: 2073 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1848 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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, 2:55 PM CDT, 9 hours 37 minutes earlier.

Area forecast discussion, May 24, 2:55 PM CDT, 9 hours 37 minutes before

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Hazardous weather outlook, May 24, 11:34 AM CDT, 12 hours 58 minutes before

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In the hours before

Special weather statement, May 24, 9:55 PM CDT, 2 hours 37 minutes before

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Special weather statement, May 24, 11:43 PM CDT, 49 minutes before

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Local storm report, May 25, 12:00 AM CDT, 32 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 25, 7:17 AM CDT	Special Weather Statement	DVN	Benton, Iowa, Keokuk	58 min
May 25, 7:54 AM CDT	Special Weather Statement	DVN	Benton, Iowa, Keokuk	66 min
May 25, 9:13 AM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware, Iowa, Johnson, Linn	62 min
May 25, 10:28 AM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware, Iowa, Johnson, Keokuk and 2 more	92 min
May 25, 12:21 PM CDT	Special Weather Statement	DVN	Dubuque	54 min
May 25, 12:44 PM CDT	Special Weather Statement	DVN	Jefferson	61 min
May 25, 12:50 PM CDT	Special Weather Statement	DVN	Dubuque	55 min
May 25, 1:15 PM CDT	Flash Flood Warning	DVN	Dubuque	4 hr
May 25, 1:44 PM CDT	Special Weather Statement	DVN	Jackson	61 min
May 25, 1:57 PM CDT	Severe Thunderstorm Warning	DVN	Scott	24 min
May 25, 2:28 PM CDT	Special Weather Statement	DVN	Clinton, Scott	62 min
May 25, 2:56 PM CDT	Special Weather Statement	DVN	Clinton	64 min
May 25, 3:00 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine	60 min
May 25, 3:08 PM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	24 hr
May 25, 3:34 PM CDT	Flash Flood Warning	DVN	Cedar, Clinton, Muscatine, Scott	6 hr
May 24, 9:55 PM CDT	Special Weather Statement	DVN	Henderson	65 min
May 24, 11:43 PM CDT	Special Weather Statement	DVN	Bureau, Putnam	47 min
May 25, 1:06 AM CDT	Special Weather Statement	DVN	Whiteside	39 min
May 25, 1:37 PM CDT	Special Weather Statement	DVN	Rock Island	53 min
May 25, 1:51 PM CDT	Special Weather Statement	DVN	Rock Island	54 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2010 Every severe thunderstorm warning in 2010

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.