Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 437

April 24, 201527 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2015, 2:14 PM CDT for 27 counties in Kansas. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Apr 24, 2015, 2:14 PM CDT (19:14 UTC)
Expired
Apr 24, 2015, 3:45 PM CDT
In force
91 min
Issued by
the Storm Prediction Center
Chance of a watch
80%
All 27 counties

Barber County, KS, Barton County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Hodgeman County, KS, Kiowa County, KS, Lane County, KS, Lincoln County, KS, Logan County, KS, Ness County, KS, Osborne County, KS, Pawnee County, KS, Pratt County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Sheridan County, KS, Stafford County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS

The radar

The Dodge City radar (KDDC), 99 km from the middle of the area, began a volume at 19:15 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.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 7.2 hours before the alert went out and 96 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-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2015-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 411 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2015-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
411 J/kg
Mixed-layer CIN
-169 J/kg
Mixed-layer LCL
608 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

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.

IssuedProductOfficeCountiesLasted
Apr 24, 3:41 PM CDTTornado WatchSPCBarber, Barton, Clay, Cloud, Decatur, Dickinson and 36 more6 hr

Nearby

Mesoscale Discussions in Kansas, 2015Every mesoscale discussion in 2015

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.