Alert archive / Kansas / Mesoscale Discussions in 2016

Mesoscale Discussion 1595

August 26, 201614 counties in Kansas; 10 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2016, 1:54 PM CDT for 14 counties in Kansas; 10 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Aug 26, 2016, 1:54 PM CDT (18:54 UTC)
Expired: Aug 26, 2016, 4:00 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 24 counties

Atchison County, KS, Brown County, KS, Doniphan County, KS, Douglas County, KS, Jackson County, KS, Jefferson County, KS, Leavenworth County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Andrew County, MO, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Holt County, MO, Jackson County, MO, Platte County, MO, Ray County, MO

The radar

The Topeka radar (KTWX), 75 km from the middle of the area, began a volume at 18:56 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

Topeka, KS (KFOE), launched 12:00Z, 6.9 hours before the alert went out and 38 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: 75 J/kg
Mixed-layer CIN: -135 J/kg
Mixed-layer LCL: 889 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 12 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
Aug 26, 6:13 PM CDT	Tornado Watch	SPC	Johnson, Leavenworth, Wyandotte	4 hr

Nearby

Mesoscale Discussions in Kansas, 2016 Mesoscale Discussions in Missouri, 2016 Every mesoscale discussion in 2016

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.