Alert archive / Texas / Mesoscale Discussions in 2010

Mesoscale Discussion 593

May 17, 201040 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 17, 2010, 1:35 PM CDT for 40 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 17, 2010, 1:35 PM CDT (18:35 UTC)
Expired
May 17, 2010, 3:00 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 40 counties

Bosque County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Eastland County, TX, Erath County, TX, Fisher County, TX, Hamilton County, TX, Haskell County, TX, Hood County, TX, Jack County, TX, Jones County, TX, Kimble County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Mitchell County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Runnels County, TX, San Saba County, TX, Scurry County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 83 km from the middle of the area, began a volume at 18:38 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

Midland Regional, TX (KMAF), launched 12:00Z, 6.6 hours before the alert went out and 241 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, Midland Regional, TX at 12:00Z on 2010-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2459 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, Midland Regional, TX at 12:00Z on 2010-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
2459 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.8

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, 8:24 PM CDTMesoscale DiscussionSPCBaylor, Briscoe, Childress, Cottle, Crosby, Dickens and 18 more66 min
May 17, 10:16 AM CDTMesoscale DiscussionSPCBrown, Callahan, Coleman, Comanche, Dickens, Eastland and 13 more59 min
May 17, 10:44 AM CDTSevere Thunderstorm WatchSPCBorden, Brown, Callahan, Coke, Coleman, Comanche and 30 more7 hr
May 17, 1:19 PM CDTMesoscale DiscussionSPCCrane, Crockett, Ector, Loving, Pecos, Reeves and 4 more86 min
May 17, 1:34 PM CDTMesoscale DiscussionSPCAngelina, Bell, Brazos, Burleson, Falls, Grimes and 16 more56 min
May 17, 2:37 PM CDTSevere Thunderstorm WatchSPCAndrews, Brewster, Crane, Culberson, Ector, Gaines and 12 more7 hr
May 17, 2:45 PM CDTMesoscale DiscussionSPCDallam, Hartley, Oldham2 hr
May 17, 4:42 PM CDTMesoscale DiscussionSPCAnderson, Bell, Blanco, Burnet, Coryell, Falls and 23 more63 min
May 17, 5:00 PM CDTSevere Thunderstorm WatchSPCAnderson, Austin, Bandera, Bastrop, Bell, Bexar and 60 more7 hr
May 17, 5:53 PM CDTMesoscale DiscussionSPCAndrews, Brewster, Crane, Culberson, Ector, Gaines and 9 more67 min

Nearby

Mesoscale Discussions in Texas, 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.