Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 174, NWS Hastings, NE

June 20, 2014Howard County, Sherman County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 20, 2014, 6:12 PM CDT for Howard County, Sherman County, Nebraska. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 20, 2014, 6:12 PM CDT (23:12 UTC)
Expired: Jun 20, 2014, 7:00 PM CDT
In force: 48 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Howard County, NE, Sherman County, NE

The radar

The Grand Island radar (KUEX), 103 km from the middle of the area, began a volume at 23:14 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 20, 2:20 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.2 hours before the alert went out and 155 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: 641 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 1345 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 301 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 4:19 PM CDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jun 20, 4:19 PM CDT, 1 hour 53 minutes before

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Hazardous weather outlook, Jun 20, 3:33 PM CDT, 2 hours 39 minutes before

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In the hours before

Local storm report, Jun 20, 4:55 PM CDT, 1 hour 17 minutes before

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Special weather statement, Jun 20, 5:17 PM CDT, 55 minutes before

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Local storm report, Jun 20, 5:39 PM CDT, 33 minutes before

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Local storm report, Jun 20, 5:41 PM CDT, 31 minutes before

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Special weather statement, Jun 20, 5:59 PM CDT, 13 minutes before

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Local storm report, Jun 20, 6:06 PM CDT, 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 10:31 AM CDT	Severe Thunderstorm Warning	GID	Valley	44 min
Jun 20, 11:11 AM CDT	Special Weather Statement	GID	Greeley	49 min
Jun 20, 11:29 AM CDT	Severe Thunderstorm Warning	GID	Greeley	31 min
Jun 20, 2:27 PM CDT	Special Weather Statement	GID	Sherman, Valley	33 min
Jun 20, 2:34 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	41 min
Jun 20, 2:57 PM CDT	Special Weather Statement	GID	Greeley	48 min
Jun 20, 3:01 PM CDT	Severe Thunderstorm Warning	GID	Greeley, Valley	44 min
Jun 20, 3:13 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	47 min
Jun 20, 3:36 PM CDT	Special Weather Statement	GID	Greeley	39 min
Jun 20, 3:49 PM CDT	Severe Thunderstorm Warning	GID	Greeley, Howard	41 min
Jun 20, 4:04 PM CDT	Severe Thunderstorm Warning	GID	Greeley	26 min
Jun 20, 4:38 PM CDT	Special Weather Statement	GID	Nance	37 min
Jun 20, 5:17 PM CDT	Special Weather Statement	GID	Howard	28 min
Jun 20, 5:40 PM CDT	Severe Thunderstorm Warning	GID	Hall, Howard, Merrick	50 min
Jun 20, 5:57 PM CDT	Severe Thunderstorm Warning	GID	Hall, Howard	33 min
Jun 20, 5:59 PM CDT	Special Weather Statement	GID	Sherman	31 min
Jun 20, 6:24 PM CDT	Severe Thunderstorm Warning	GID	Hall, Howard, Merrick	51 min
Jun 20, 6:53 PM CDT	Severe Thunderstorm Warning	GID	Hall, Hamilton, Merrick	52 min
Jun 20, 6:55 PM CDT	Severe Thunderstorm Warning	GID	Hall, Howard	35 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Every severe thunderstorm warning in 2014

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.