Alert archive / Kansas / Mesoscale Discussions in 2007

Mesoscale Discussion 2033

September 28, 200715 counties in Kansas; 13 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Sep 28, 2007, 7:27 PM CDT for 15 counties in Kansas; 13 counties in Nebraska. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Sep 28, 2007, 7:27 PM CDT (00:27 UTC)
Expired: Sep 28, 2007, 9:00 PM CDT
In force: 93 min
Issued by: the Storm Prediction Center

All 28 counties

Cheyenne County, KS, Decatur County, KS, Finney County, KS, Gove County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Norton County, KS, Rawlins County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Chase County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Lincoln County, NE, Logan County, NE, Phelps County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 103 km from the middle of the area, began a volume at 00:30 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

Dodge City, (KDDC), launched 00:00Z, 0.5 hours before the alert went out and 211 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: 2091 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1364 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 10.2

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
Sep 29, 3:35 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Greeley, Rawlins, Sherman, Thomas, Wallace	55 min
Sep 29, 6:04 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Greeley, Hamilton, Kearny, Logan and 7 more	7 hr

Nearby

Mesoscale Discussions in Kansas, 2007 Mesoscale Discussions in Nebraska, 2007 Every mesoscale discussion in 2007

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.