Alert archive / Kansas / Mesoscale Discussions in 2006

Mesoscale Discussion 2157

October 26, 20064 counties in Kansas; Grant County, Kay County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Oct 26, 2006, 4:03 PM CDT for 4 counties in Kansas; Grant County, Kay County, Oklahoma. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Oct 26, 2006, 4:03 PM CDT (21:03 UTC)
Expired: Oct 26, 2006, 5:30 PM CDT
In force: 87 min
Issued by: the Storm Prediction Center

Counties Barber County, KS, Comanche County, KS, Harper County, KS, Sumner County, KS, Grant County, OK, Kay County, OK

The radar

The Vance AFB radar (KVNX), 66 km from the middle of the area, began a volume at 21:02 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 839Oct 26, 4:40 PM CDT

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 9.1 hours before the alert went out and 131 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: 53 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 574 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 132 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
Oct 26, 4:44 PM CDT	Tornado Watch	SPC	Barber, Clark, Comanche, Ford, Grant, Gray and 5 more	4 hr
Oct 26, 6:22 PM CDT	Mesoscale Discussion	SPC	Choctaw, McCurtain	83 min

Nearby

Mesoscale Discussions in Kansas, 2006 Mesoscale Discussions in Oklahoma, 2006 Every mesoscale discussion 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.