Alert archive / Iowa / Special Weather Statements in 2016

Special Weather Statement, NWS Quad Cities, IA

March 30, 2016Benton County, Linn County, Iowa

NWS Quad Cities, IA issued this special weather statement at Mar 30, 2016, 9:15 PM CDT for Benton County, Linn County, Iowa. It was in force for 45 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: Mar 30, 2016, 9:15 PM CDT (02:15 UTC)
Expired: Mar 30, 2016, 10:00 PM CDT
In force: 45 min
Issued by: NWS Quad Cities, IA

Counties Benton County, IA, Linn County, IA

The radar

The Quad Cities radar (KDVN), 133 km from the middle of the area, began a volume at 02:17 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 00:00Z, 2.3 hours before the alert went out and 139 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: 2 J/kg
Mixed-layer CIN: -366 J/kg
Mixed-layer LCL: 1078 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 235 m²/s²
0-3 km storm-relative helicity: 270 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 Mar 30, 6:56 PM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Mar 30, 6:56 PM CDT, 2 hours 19 minutes before

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Hazardous weather outlook, Mar 30, 9:00 PM CDT, 15 minutes before

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In the hours before

Special weather statement, Mar 30, 5:31 PM CDT, 3 hours 44 minutes before

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Local storm report, Mar 30, 6:02 PM CDT, 3 hours 13 minutes before

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Special weather statement, Mar 30, 6:03 PM CDT, 3 hours 12 minutes before

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Local storm report, Mar 30, 6:07 PM CDT, 3 hours 8 minutes before

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Special weather statement, Mar 30, 9:15 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
Mar 30, 10:08 PM CDT	Special Weather Statement	DVN	Delaware, Dubuque	52 min
Mar 31, 10:00 AM CDT	Special Weather Statement	DVN	Jackson, Jones	45 min
Mar 31, 10:13 AM CDT	Special Weather Statement	DVN	Scott	47 min
Mar 31, 10:28 AM CDT	Severe Thunderstorm Warning	DVN	Clinton	32 min
Mar 31, 11:01 AM CDT	Special Weather Statement	DVN	Carroll, Whiteside	29 min
Mar 31, 11:11 AM CDT	Special Weather Statement	DVN	Bureau	49 min
Mar 31, 11:25 AM CDT	Special Weather Statement	DVN	Whiteside	35 min
Mar 31, 11:59 AM CDT	Special Weather Statement	DVN	Henry	31 min
Mar 31, 12:25 PM CDT	Special Weather Statement	DVN	Henry	35 min
Mar 31, 12:31 PM CDT	Special Weather Statement	DVN	Whiteside	29 min
Mar 31, 12:55 PM CDT	Special Weather Statement	DVN	Bureau	35 min

Nearby

Special Weather Statements in Iowa, 2016 Every 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.