Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 1476

July 19, 201513 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jul 19, 2015, 1:03 AM CDT for 13 counties in Kansas. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued
Jul 19, 2015, 1:03 AM CDT (06:03 UTC)
Expired
Jul 19, 2015, 2:00 AM CDT
In force
57 min
Issued by
the Storm Prediction Center

Counties Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Lane County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Sheridan County, KS, Smith County, KS, Trego County, KS

The radar

The Goodland radar (KGLD), 156 km from the middle of the area, began a volume at 06:05 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 00:00Z, 6.1 hours before the alert went out and 162 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 00:00Z on 2015-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 300 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 00:00Z on 2015-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
300 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
3123 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Jul 18, 7:41 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Logan, Rawlins, Sheridan and 3 more6 hr
Jul 18, 8:30 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Dickinson, Doniphan, Douglas and 12 more60 min
Jul 18, 10:54 PM CDTMesoscale DiscussionSPCDecatur, Gove, Logan, Rawlins, Sheridan, Sherman and 2 more96 min
Jul 19, 2:57 AM CDTSevere Thunderstorm WatchSPCBarton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 20 more5 hr
Jul 19, 5:05 AM CDTMesoscale DiscussionSPCClay, Cloud, Geary, Jewell, Marshall, Ottawa and 4 more85 min
Jul 19, 2:18 PM CDTMesoscale DiscussionSPCCheyenne, Greeley, Hamilton, Kearny, Logan, Rawlins and 6 more117 min
Jul 19, 3:37 PM CDTSevere Thunderstorm WatchSPCCheyenne, Clark, Comanche, Edwards, Finney, Ford and 24 more8 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.