Alert archive / Iowa / Special Weather Statements in 2019

Special Weather Statement, NWS Quad Cities, IA

June 27, 2019Buchanan County, Delaware County, Iowa

NWS Quad Cities, IA issued this special weather statement at Jun 27, 2019, 2:08 PM CDT for Buchanan County, Delaware County, Iowa. It was in force for 22 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: Jun 27, 2019, 2:08 PM CDT (19:08 UTC)
Expired: Jun 27, 2019, 2:30 PM CDT
In force: 22 min
Issued by: NWS Quad Cities, IA

Counties Buchanan County, IA, Delaware County, IA

The radar

The Quad Cities radar (KDVN), 123 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 127 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: 1660 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 1139 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 72 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 27, 12:39 PM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jun 27, 12:39 PM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Jun 27, 4:15 AM CDT, 9 hours 53 minutes before

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In the hours before

Special weather statement, Jun 27, 12:26 PM CDT, 1 hour 42 minutes before

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Special weather statement, Jun 27, 1:16 PM CDT, 52 minutes before

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Special weather statement, Jun 27, 1:39 PM CDT, 29 minutes before

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Special weather statement, Jun 27, 2:08 PM 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
Jun 27, 1:16 PM CDT	Special Weather Statement	DVN	Buchanan, Delaware, Dubuque, Jackson	104 min
Jun 27, 1:39 PM CDT	Special Weather Statement	DVN	Buchanan	36 min
Jun 27, 2:30 PM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware	30 min
Jun 27, 3:05 PM CDT	Special Weather Statement	DVN	Benton, Delaware, Dubuque	25 min
Jun 27, 3:29 PM CDT	Special Weather Statement	DVN	Dubuque, Jackson, Jones, Linn	31 min
Jun 27, 3:45 PM CDT	Severe Thunderstorm Warning	DVN	Jones	45 min
Jun 27, 4:30 PM CDT	Special Weather Statement	DVN	Cedar, Jackson	30 min
Jun 27, 4:39 PM CDT	Severe Thunderstorm Warning	DVN	Cedar	20 min
Jun 27, 5:04 PM CDT	Special Weather Statement	DVN	Delaware	26 min
Jun 27, 5:18 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	27 min
Jun 27, 5:43 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware, Dubuque	20 min

Nearby

Special Weather Statements in Iowa, 2019 Every special weather statement in 2019

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.