Alert archive / Nebraska / Special Weather Statements in 2015

Special Weather Statement, NWS Omaha, NE

June 21, 2015Richardson County, Nebraska

NWS Omaha, NE issued this special weather statement at Jun 21, 2015, 1:21 PM CDT for Richardson County, Nebraska. It was in force for 39 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 21, 2015, 1:21 PM CDT (18:21 UTC)
Expired: Jun 21, 2015, 2:00 PM CDT
In force: 39 min
Issued by: NWS Omaha, NE

County Richardson County, NE

The radar

The Topeka radar (KTWX), 135 km from the middle of the area, began a volume at 18:25 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

Topeka, KS (KFOE), launched 12:00Z, 6.4 hours before the alert went out and 118 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: 1785 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 1089 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 20, 5:56 PM CDT, 19 hours 25 minutes earlier.

Area forecast discussion, Jun 20, 5:56 PM CDT, 19 hours 25 minutes before

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Hazardous weather outlook, Jun 20, 6:41 PM CDT, 18 hours 40 minutes before

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<body>
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      <h1 id="headline">This service is currently unavailable.</h1>
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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 21, 10:51 AM CDT	Special Weather Statement	OAX	Gage	39 min
Jun 21, 11:09 AM CDT	Special Weather Statement	OAX	Pawnee	51 min
Jun 21, 12:53 PM CDT	Special Weather Statement	OAX	Richardson	52 min
Jun 21, 2:21 PM CDT	Special Weather Statement	OAX	Holt	39 min

Nearby

Special Weather Statements in Nebraska, 2015 Every special weather statement in 2015

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.