Alert archive / Iowa / Special Weather Statements in 2016

Special Weather Statement, NWS Omaha, NE

June 14, 2016Monona County, Iowa

NWS Omaha, NE issued this special weather statement at Jun 14, 2016, 3:02 PM CDT for Monona County, Iowa. It was in force for 13 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 14, 2016, 3:02 PM CDT (20:02 UTC)
Expired: Jun 14, 2016, 3:15 PM CDT
In force: 13 min
Issued by: NWS Omaha, NE

County Monona County, IA

The radar

The Omaha radar (KOAX), 99 km from the middle of the area, began a volume at 20:02 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

Omaha, NE (KOAX), launched 12:00Z, 8.0 hours before the alert went out and 99 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: 852 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

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 Omaha, NE wrote its last area forecast discussion before this special weather statement went out at Jun 14, 12:42 PM CDT, 2 hours 20 minutes earlier.

Area forecast discussion, Jun 14, 12:42 PM CDT, 2 hours 20 minutes before

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Hazardous weather outlook, Jun 14, 10:19 AM CDT, 4 hours 43 minutes before

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In the hours before

Local storm report, Jun 14, 9:27 AM CDT, 5 hours 35 minutes before

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Special weather statement, Jun 14, 11:17 AM CDT, 3 hours 45 minutes before

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Special weather statement, Jun 14, 11:18 AM CDT, 3 hours 44 minutes before

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Special weather statement, Jun 14, 11:44 AM CDT, 3 hours 18 minutes before

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Special weather statement, Jun 14, 2:40 PM CDT, 22 minutes before

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Special weather statement, Jun 14, 3:02 PM CDT, 0 minutes before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 3:43 AM CDT	Special Weather Statement	OAX	Stanton, Wayne	47 min
Jun 14, 4:23 AM CDT	Special Weather Statement	OAX	Colfax, Cuming, Dodge, Stanton, Wayne	52 min
Jun 14, 7:21 AM CDT	Special Weather Statement	OAX	Burt, Dodge, Lancaster, Saunders	39 min
Jun 14, 7:37 AM CDT	Special Weather Statement	OAX	Dodge	38 min
Jun 14, 11:17 AM CDT	Special Weather Statement	OAX	Madison	28 min
Jun 14, 11:18 AM CDT	Special Weather Statement	OAX	Wayne	27 min
Jun 14, 11:44 AM CDT	Special Weather Statement	OAX	Wayne	31 min
Jun 14, 2:40 PM CDT	Special Weather Statement	OAX	Monona	20 min
Jun 14, 3:04 PM CDT	Special Weather Statement	OAX	Pottawattamie	26 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.