Alert archive / Nebraska / Severe Thunderstorm Watches in 2006

Severe Thunderstorm Watch 488

June 15, 20065 counties in Kansas; 18 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 15, 2006, 8:14 PM CDT for 5 counties in Kansas; 18 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Jun 15, 2006, 8:14 PM CDT (01:14 UTC)
Expired: Jun 16, 2006, 1:17 AM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 23 counties

Jewell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Franklin County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Polk County, NE, Sherman County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 40 km from the middle of the area, began a volume at 01:16 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.

Warnings issued inside it

3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 15, 8:30 PM CDT	Severe Thunderstorm Warning	GID	Hall, Merrick	43 min
Jun 15, 9:27 PM CDT	Severe Thunderstorm Warning	GID	Phillips, Rooks	63 min
Jun 15, 10:02 PM CDT	Severe Thunderstorm Warning	GID	Franklin	42 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.2 hours before the alert went out and 163 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: 2344 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 2191 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.9

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 8:08 PM CDT	Mesoscale Discussion	SPC	Jewell, Osborne, Phillips, Rooks, Smith	67 min
Jun 15, 9:28 PM CDT	Mesoscale Discussion	SPC	Decatur, Finney, Gove, Graham, Grant, Greeley and 17 more	92 min
Jun 16, 12:40 PM CDT	Mesoscale Discussion	SPC	Grant, Hamilton, Kearny, Morton, Stanton, Stevens	95 min
Jun 16, 12:58 PM CDT	Mesoscale Discussion	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	62 min
Jun 16, 1:02 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Grant, Greeley, Hamilton, Kearny, Logan and 8 more	6 hr
Jun 16, 1:53 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Clark, Comanche, Decatur, Edwards and 29 more	7 hr
Jun 16, 2:57 PM CDT	Tornado Watch	SPC	Clark, Finney, Ford, Gove, Grant, Gray and 17 more	8 hr
Jun 16, 3:37 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Greeley, Rawlins, Sheridan, Sherman and 2 more	23 min
Jun 16, 4:02 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Comanche, Decatur, Edwards, Ellis and 21 more	88 min
Jun 16, 6:58 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Cloud, Dickinson, Jewell, Mitchell, Morris and 3 more	4 hr
Jun 15, 7:08 PM CDT	Severe Thunderstorm Watch	SPC	Arthur, Blaine, Boyd, Brown, Chase, Cherry and 17 more	7 hr
Jun 15, 11:29 PM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Brown, Chase, Cherry, Deuel and 10 more	91 min
Jun 16, 1:30 PM CDT	Severe Thunderstorm Watch	SPC	Antelope, Boone, Boyd, Burt, Butler, Cedar and 23 more	6 hr
Jun 16, 6:26 PM CDT	Mesoscale Discussion	SPC	Boone, Buffalo, Burt, Colfax, Cuming, Dakota and 15 more	64 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2006 Severe Thunderstorm Watches in Kansas, 2006 Every severe thunderstorm watch in 2006

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.