Alert archive / Nebraska / Mesoscale Discussions in 2004

Mesoscale Discussion 1150

June 9, 2004Cheyenne County, Rawlins County, Sherman County, Kansas; 9 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2004, 1:03 AM CDT for Cheyenne County, Rawlins County, Sherman County, Kansas; 9 counties in Nebraska. It was in force for 27 min.

The area

The outline as issued.

The facts

Issued: Jun 9, 2004, 1:03 AM CDT (06:03 UTC)
Expired: Jun 9, 2004, 1:30 AM CDT
In force: 27 min
Issued by: the Storm Prediction Center

Counties Cheyenne County, KS, Rawlins County, KS, Sherman County, KS, Chase County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Lincoln County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 111 km from the middle of the area, began a volume at 06:06 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.1 hours before the alert went out and 107 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: 711 J/kg
Mixed-layer CIN: -427 J/kg
Mixed-layer LCL: 1960 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 329 m²/s²
0-3 km storm-relative helicity: 439 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.8

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 8, 8:55 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Rawlins, Sherman	5 hr
Jun 9, 2:40 PM CDT	Tornado Watch	SPC	Morton, Stanton	6 hr
Jun 9, 5:42 PM CDT	Mesoscale Discussion	SPC	Morton, Stanton	93 min
Jun 9, 5:54 PM CDT	Mesoscale Discussion	SPC	Chautauqua, Cherokee, Labette, Montgomery, Wilson	96 min
Jun 8, 8:20 PM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Brown, Chase, Cherry, Cheyenne and 22 more	115 min
Jun 8, 11:58 PM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Brown, Chase, Cherry, Cheyenne and 22 more	2 hr

Nearby

Mesoscale Discussions in Nebraska, 2004 Mesoscale Discussions in Kansas, 2004 Every mesoscale discussion in 2004

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.