Alert archive / Missouri / Mesoscale Discussions in 2015

Mesoscale Discussion 675

May 16, 20154 counties in Kansas; 21 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 16, 2015, 8:31 PM CDT for 4 counties in Kansas; 21 counties in Missouri. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
May 16, 2015, 8:31 PM CDT (01:31 UTC)
Expired
May 16, 2015, 10:00 PM CDT
In force
89 min
Issued by
the Storm Prediction Center
All 25 counties

Johnson County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Andrew County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO

The watches that followed

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

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 1.5 hours before the alert went out and 150 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, Topeka, KS at 00:00Z on 2015-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 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, Topeka, KS at 00:00Z on 2015-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 square meters per square second.1939587897Sfc1 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
158 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
843 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

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
May 16, 9:24 PM CDTMesoscale DiscussionSPCAllen, Butler, Chautauqua, Cowley, Elk, Greenwood and 5 more96 min
May 16, 10:21 PM CDTTornado WatchSPCBourbon, Cherokee, Crawford5 hr
May 16, 10:27 PM CDTSevere Thunderstorm WatchSPCLinn, Miami4 hr
May 17, 1:43 AM CDTMesoscale DiscussionSPCBarry, Benton, Camden, Christian, Cole, Dallas and 20 more92 min
May 17, 2:06 AM CDTSevere Thunderstorm WatchSPCCamden, Dallas, Dent, Douglas, Howell, Laclede and 10 more5 hr
May 17, 4:27 AM CDTMesoscale DiscussionSPCCarter, Crawford, Dent, Howell, Iron, Oregon and 6 more93 min

Nearby

Mesoscale Discussions in Missouri, 2015Mesoscale 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.