Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 218, NWS Hastings, NE

June 15, 2008Merrick County, Nance County, Polk County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 15, 2008, 6:23 AM CDT for Merrick County, Nance County, Polk County, Nebraska. It was in force for 52 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 15, 2008, 6:23 AM CDT (11:23 UTC)
Expired: Jun 15, 2008, 7:15 AM CDT
In force: 52 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon

Counties Merrick County, NE, Nance County, NE, Polk County, NE

The radar

The Grand Island radar (KUEX), 114 km from the middle of the area, began a volume at 11:23 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 00:00Z, 11.4 hours before the alert went out and 125 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: 308 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 2405 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

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 15, 3:16 AM CDT, 3 hours 7 minutes earlier.

Area forecast discussion, Jun 15, 3:16 AM CDT, 3 hours 7 minutes before

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Hazardous weather outlook, Jun 15, 5:17 AM CDT, 1 hour 6 minutes before

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In the hours before

Special weather statement, Jun 15, 6:16 AM CDT, 7 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 15, 6:37 AM CDT	Severe Thunderstorm Warning	GID	Merrick, Polk	38 min
Jun 15, 6:50 AM CDT	Severe Thunderstorm Warning	GID	York	40 min
Jun 15, 7:14 AM CDT	Severe Thunderstorm Warning	GID	Polk	13 min
Jun 15, 1:58 PM CDT	Severe Thunderstorm Warning	GID	Jewell, Smith	47 min
Jun 15, 2:31 PM CDT	Areal Flood Advisory	GID	Smith	119 min
Jun 15, 2:38 PM CDT	Tornado Warning	GID	Jewell, Mitchell, Osborne, Smith	37 min
Jun 15, 3:06 PM CDT	Tornado Warning	GID	Jewell, Mitchell, Osborne, Smith	39 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008 Every severe thunderstorm warning in 2008

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.