Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 339

March 26, 20179 counties in Kansas; Nowata County, Washington County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 26, 2017, 10:05 PM CDT for 9 counties in Kansas; Nowata County, Washington County, Oklahoma. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Mar 26, 2017, 10:05 PM CDT (03:05 UTC)
Expired: Mar 26, 2017, 11:30 PM CDT
In force: 85 min
Issued by: the Storm Prediction Center

Counties Allen County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Nowata County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 128 km from the middle of the area, began a volume at 03:04 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

Springfield, MO (KSGF), launched 00:00Z, 3.1 hours before the alert went out and 170 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1463 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 26, 7:15 PM CDT	Mesoscale Discussion	SPC	Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 9 more	90 min
Mar 26, 8:49 PM CDT	Severe Thunderstorm Watch	SPC	Choctaw, Haskell, Latimer, LeFlore, McCurtain, Pushmataha and 1 more	6 hr
Mar 27, 12:44 AM CDT	Mesoscale Discussion	SPC	McCurtain	61 min

Nearby

Mesoscale Discussions in Kansas, 2017 Mesoscale Discussions in Oklahoma, 2017 Every mesoscale discussion in 2017

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.