Alert archive / Iowa / Special Weather Statements in 2022

Special Weather Statement, NWS Quad Cities, IA

August 7, 2022Dubuque County, Jackson County, Jones County, Iowa

NWS Quad Cities, IA issued this special weather statement at Aug 7, 2022, 7:40 AM CDT for Dubuque County, Jackson County, Jones County, Iowa. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 7, 2022, 7:40 AM CDT (12:40 UTC)
Expired: Aug 7, 2022, 8:30 AM CDT
In force: 50 min
Issued by: NWS Quad Cities, IA
Hail: 0.00 in
Wind: 40

Counties Dubuque County, IA, Jackson County, IA, Jones County, IA

The radar

The Quad Cities radar (KDVN), 62 km from the middle of the area, began a volume at 12:39 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 12:00Z, 0.7 hours before the alert went out and 290 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: 1093 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 1041 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 7, 6:38 AM CDT, 1 hour 2 minutes earlier.

Area forecast discussion, Aug 7, 6:38 AM CDT, 1 hour 2 minutes before

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Hazardous weather outlook, Aug 7, 3:26 AM CDT, 4 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
326 AM CDT Sun Aug 7 2022

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-080830-
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-
326 AM CDT Sun Aug 7 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...TODAY AND TONIGHT

Thunderstorms will be seen today and tonight that have the
potential to produce heavy rainfall. No severe storms are expected
but winds gusting up to 40 mph are possible. Rainfall rates of 1
to 2 inches per hour are also possible from the strongest storms.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

Thunderstorms will been seen Monday into Monday night with locally
heavy rainfall possible. At this time no severe storms are
expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today or tonight. Rainfall
reports over 1 inch will be appreciated.

In the hours before

Local storm report, Aug 7, 6:43 AM CDT, 57 minutes before

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Local storm report, Aug 7, 7:11 AM CDT, 29 minutes before

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Local storm report, Aug 7, 7:26 AM CDT, 14 minutes before

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Local storm report, Aug 7, 7:31 AM CDT, 9 minutes before

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Local storm report, Aug 7, 7:36 AM CDT, 4 minutes before

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Special weather statement, Aug 7, 7:40 AM CDT, 0 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
Aug 6, 10:39 PM CDT	Special Weather Statement	DVN	Buchanan	51 min
Aug 7, 2:05 AM CDT	Special Weather Statement	DVN	Buchanan	55 min
Aug 7, 2:20 AM CDT	Flood Watch	DVN	Benton, Buchanan, Clinton, Delaware, Dubuque, Jackson and 2 more	29 hr
Aug 7, 2:49 AM CDT	Special Weather Statement	DVN	Buchanan	26 min
Aug 7, 3:15 AM CDT	Special Weather Statement	DVN	Jones, Linn	45 min
Aug 7, 8:32 AM CDT	Special Weather Statement	DVN	Clinton, Jackson	43 min
Aug 7, 9:21 AM CDT	River Flood Watch	DVN	Clinton, Scott	34 hr
Aug 7, 12:17 AM CDT	Special Weather Statement	DVN	Jo Daviess, Stephenson	43 min
Aug 7, 1:05 AM CDT	Special Weather Statement	DVN	Jo Daviess, Stephenson	40 min
Aug 7, 3:25 AM CDT	Special Weather Statement	DVN	Stephenson	65 min
Aug 7, 5:09 AM CDT	Flash Flood Warning	DVN	Jo Daviess, Stephenson	6 hr
Aug 7, 10:50 AM CDT	Areal Flood Warning	DVN	Jo Daviess, Stephenson	6 hr

Nearby

Special Weather Statements in Iowa, 2022 Every special weather statement 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.