Alert archive / Nebraska / Mesoscale Discussions in 2003

Mesoscale Discussion 1337

June 11, 2003Smith County, Kansas; 14 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2003, 7:51 PM CDT for Smith County, Kansas; 14 counties in Nebraska. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jun 11, 2003, 7:51 PM CDT (00:51 UTC)
Expired: Jun 11, 2003, 8:45 PM CDT
In force: 54 min
Issued by: the Storm Prediction Center

Counties Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Franklin County, NE, Gosper County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Sherman County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 52 km from the middle of the area, began a volume at 00:51 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, 0.9 hours before the alert went out and 234 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: 26 J/kg
Mixed-layer CIN: -227 J/kg
Mixed-layer LCL: 1651 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 9:31 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Clark, Comanche, Decatur, Finney, Ford and 25 more	59 min
Jun 12, 4:54 PM CDT	Mesoscale Discussion	SPC	Arthur, Banner, Blaine, Box Butte, Cheyenne, Garden and 10 more	96 min

Nearby

Mesoscale Discussions in Nebraska, 2003 Mesoscale Discussions in Kansas, 2003 Every mesoscale discussion in 2003

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.