Alert archive / Oklahoma / Mesoscale Discussions in 2003

Mesoscale Discussion 268

March 17, 20037 counties in Kansas; 10 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 17, 2003, 9:04 PM CST for 7 counties in Kansas; 10 counties in Oklahoma. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Mar 17, 2003, 9:04 PM CST (03:04 UTC)
Expired: Mar 17, 2003, 10:30 PM CST
In force: 86 min
Issued by: the Storm Prediction Center

Counties Barber County, KS, Cowley County, KS, Harper County, KS, Kingman County, KS, Pratt County, KS, Sedgwick County, KS, Sumner County, KS, Alfalfa County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Logan County, OK, Major County, OK, Noble County, OK, Payne County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 14 km from the middle of the area, began a volume at 03:05 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, 3.1 hours before the alert went out and 191 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: 7 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 1420 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: -70 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
Mar 17, 6:50 PM CST	Severe Thunderstorm Watch	SPC	Barber, Barton, Comanche, Cowley, Dickinson, Edwards and 16 more	4 hr
Mar 17, 8:19 PM CST	Mesoscale Discussion	SPC	Caddo, Carter, Cleveland, Comanche, Cotton, Garvin and 9 more	86 min
Mar 18, 9:36 AM CST	Mesoscale Discussion	SPC	McCurtain	3 hr

Nearby

Mesoscale Discussions in Oklahoma, 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.