Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 1468

August 10, 20175 states

The Storm Prediction Center issued this mesoscale discussion at Aug 10, 2017, 2:50 PM MDT for 5 states. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued
Aug 10, 2017, 2:50 PM MDT (20:50 UTC)
Expired
Aug 10, 2017, 4:45 PM MDT
In force
115 min
Issued by
the Storm Prediction Center
Chance of a watch
80%
All 29 counties

Baca County, CO, Bent County, CO, Crowley County, CO, Huerfano County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Colfax County, NM, Union County, NM, Beaver County, OK, Cimarron County, OK, Texas County, OK, Dallam County, TX, Hansford County, TX, Ochiltree County, TX, Sherman County, TX

The radar

The Pueblo radar (KPUX), 173 km from the middle of the area, began a volume at 20:51 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, 8.8 hours before the alert went out and 249 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 2017-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 520 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 2017-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.19395878Sfc1 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
520 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

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.

IssuedProductOfficeCountiesLasted
Aug 10, 3:52 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 13 more7 hr
Aug 9, 6:36 PM MDTMesoscale DiscussionSPCBarber, Comanche, Harper84 min
Aug 10, 12:42 PM MDTMesoscale DiscussionSPCHarper, Sumner2 hr
Aug 10, 1:05 PM MDTMesoscale DiscussionSPCBarton, Cloud, Ellis, Ellsworth, Gove, Graham and 15 more115 min
Aug 10, 1:06 PM MDTSevere Thunderstorm WatchSPCBarber, Comanche, Harper, Sumner7 hr
Aug 10, 1:27 PM MDTSevere Thunderstorm WatchSPCAllen, Barton, Butler, Chase, Chautauqua, Clay and 38 more7 hr
Aug 10, 3:53 PM MDTMesoscale DiscussionSPCBarton, Edwards, Ellsworth, Harvey, Kingman, Kiowa and 11 more97 min
Aug 10, 5:44 PM MDTMesoscale DiscussionSPCBarber, Comanche91 min
Aug 10, 3:33 PM MDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Creek and 19 more57 min

Nearby

Mesoscale Discussions in Kansas, 2017Mesoscale Discussions in Colorado, 2017Mesoscale Discussions in Texas, 2017Every 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.