Alert archive / Iowa / Special Weather Statements in 2016

Special Weather Statement, NWS Quad Cities, IA

June 22, 20166 counties in Iowa; Mercer County, Warren County, Illinois

NWS Quad Cities, IA issued this special weather statement at Jun 22, 2016, 9:13 AM CDT for 6 counties in Iowa; Mercer County, Warren County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 22, 2016, 9:13 AM CDT (14:13 UTC)
Expired
Jun 22, 2016, 12:15 PM CDT
In force
3 hr
Issued by
NWS Quad Cities, IA

Counties Benton County, IA, Cedar County, IA, Johnson County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Mercer County, IL, Warren County, IL

The radar

The Quad Cities radar (KDVN), 67 km from the middle of the area, began a volume at 14:13 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

Davenport, (KDVN), launched 12:00Z, 2.2 hours before the alert went out and 74 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 2016-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2016-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -264 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
677 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-264 m²/s²
0-3 km storm-relative helicity
-201 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 Jun 22, 6:56 AM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 22, 6:56 AM CDT, 2 hours 17 minutes before
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Hazardous weather outlook, Jun 22, 5:23 AM CDT, 3 hours 50 minutes before
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In the hours before

Local storm report, Jun 22, 7:31 AM CDT, 1 hour 42 minutes before
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Local storm report, Jun 22, 7:54 AM CDT, 1 hour 19 minutes before
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Local storm report, Jun 22, 8:09 AM CDT, 1 hour 4 minutes before
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Local storm report, Jun 22, 8:43 AM CDT, 30 minutes before
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Local storm report, Jun 22, 9:02 AM CDT, 11 minutes before
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Special weather statement, Jun 22, 9:13 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.

IssuedProductOfficeCountiesLasted
Jun 21, 10:06 PM CDTSpecial Weather StatementDVNJefferson, Van Buren24 min
Jun 21, 11:13 PM CDTSpecial Weather StatementDVNIowa32 min
Jun 21, 11:16 PM CDTSpecial Weather StatementDVNJefferson, Keokuk, Washington59 min
Jun 22, 12:00 AM CDTSpecial Weather StatementDVNKeokuk, Washington30 min
Jun 22, 1:37 AM CDTFlash Flood WarningDVNBenton, Iowa, Johnson, Linn6 hr
Jun 22, 2:56 AM CDTSpecial Weather StatementDVNLouisa49 min
Jun 22, 3:02 AM CDTSevere Thunderstorm WarningDVNLouisa43 min
Jun 22, 3:07 AM CDTSpecial Weather StatementDVNJohnson38 min
Jun 22, 3:22 AM CDTSevere Thunderstorm WarningDVNDes Moines53 min
Jun 22, 4:18 AM CDTFlash Flood WarningDVNJohnson, Louisa, Muscatine, Washington6 hr
Jun 22, 4:23 AM CDTRiver Flood WarningDVNCedar, Louisa, Muscatine3 days
Jun 22, 4:23 AM CDTHeat AdvisoryDVNDes Moines, Henry, Jefferson, Lee, Van Buren15 hr
Jun 22, 9:54 AM CDTRiver Flood WatchDVNLouisa63 hr
Jun 22, 9:54 AM CDTRiver Flood WatchDVNLouisa4 days
Jun 22, 9:54 AM CDTRiver Flood WatchDVNLouisa4 days
Jun 22, 6:25 PM CDTSpecial Weather StatementDVNClinton35 min
Jun 22, 12:08 AM CDTSpecial Weather StatementDVNMercer37 min
Jun 22, 3:48 AM CDTSevere Thunderstorm WarningDVNWarren42 min
Jun 22, 6:30 PM CDTSevere Thunderstorm WarningDVNWhiteside60 min
Jun 22, 6:31 PM CDTSpecial Weather StatementDVNCarroll29 min
Jun 22, 6:57 PM CDTSpecial Weather StatementDVNWhiteside48 min

Nearby

Special Weather Statements in Iowa, 2016Special Weather Statements in Illinois, 2016Every special weather statement in 2016

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.