Alert archive / Texas / Mesoscale Discussions in 2010

Mesoscale Discussion 928

June 13, 2010Comanche County, Kansas; Harper County, Oklahoma; Lipscomb County, Ochiltree County, Roberts County, Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2010, 5:58 PM CDT for Comanche County, Kansas; Harper County, Oklahoma; Lipscomb County, Ochiltree County, Roberts County, Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 13, 2010, 5:58 PM CDT (22:58 UTC)
Expired
Jun 13, 2010, 8:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center

Counties Comanche County, KS, Harper County, OK, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX

The radar

The Dodge City radar (KDDC), 140 km from the middle of the area, began a volume at 23:01 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.0 hours before the alert went out and 198 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, Amarillo Airport, TX at 12:00Z on 2010-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1689 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, Amarillo Airport, TX at 12:00Z on 2010-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 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
1689 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
1.6
Supercell composite
8.0

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
Jun 12, 9:20 PM CDTMesoscale DiscussionSPCBarton, Clark, Comanche, Edwards, Ellis, Ellsworth and 34 more55 min
Jun 12, 9:50 PM CDTSevere Thunderstorm WatchSPCClark, Finney, Ford, Gove, Grant, Gray and 17 more6 hr
Jun 13, 1:02 AM CDTMesoscale DiscussionSPCClark, Ford, Meade, Seward, Stevens58 min
Jun 13, 2:29 AM CDTMesoscale DiscussionSPCAtchison, Chase, Harvey, Jackson, Jefferson, Kingman and 8 more91 min
Jun 13, 3:19 AM CDTMesoscale DiscussionSPCClark, Ford, Meade26 min
Jun 13, 12:30 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Linn and 1 more30 min
Jun 13, 12:47 PM CDTSevere Thunderstorm WatchSPCBourbon, Crawford, Linn, Miami5 hr
Jun 13, 1:27 PM CDTMesoscale DiscussionSPCBarber, Butler, Chautauqua, Clark, Comanche, Cowley and 10 more2 hr
Jun 13, 2:02 PM CDTTornado WatchSPCBarber, Clark, Comanche, Edwards, Ford, Gray and 7 more8 hr
Jun 13, 3:38 PM CDTSevere Thunderstorm WatchSPCClay, Cloud, Decatur, Ellis, Gove, Graham and 18 more3 hr
Jun 13, 3:41 PM CDTMesoscale DiscussionSPCBourbon, Crawford, Labette, Neosho, Wilson64 min
Jun 13, 6:18 PM CDTMesoscale DiscussionSPCButler, Chase, Cowley, Harper, Harvey, Kingman and 4 more27 min
Jun 13, 6:28 PM CDTSevere Thunderstorm WatchSPCButler, Chase, Cowley, Harper, Harvey, Kingman and 6 more7 hr
Jun 13, 4:37 PM CDTSevere Thunderstorm WatchSPCBeckham, Custer, Greer, Harmon, Jackson, Kiowa and 2 more7 hr
Jun 13, 3:12 PM CDTMesoscale DiscussionSPCAndrews, Borden, Crane, Dawson, Ector, Glasscock and 8 more2 hr

Nearby

Mesoscale Discussions in Texas, 2010Mesoscale Discussions in Kansas, 2010Mesoscale Discussions in Oklahoma, 2010Every mesoscale discussion in 2010

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.