Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 1017

May 24, 2008Comanche County, Cotton County, Tillman County, Oklahoma; 17 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2008, 11:00 PM CDT for Comanche County, Cotton County, Tillman County, Oklahoma; 17 counties in Texas. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued: May 24, 2008, 11:00 PM CDT (04:00 UTC)
Expired: May 25, 2008, 12:00 AM CDT
In force: 60 min
Issued by: the Storm Prediction Center

Counties Comanche County, OK, Cotton County, OK, Tillman County, OK, Archer County, TX, Callahan County, TX, Clay County, TX, Eastland County, TX, Fisher County, TX, Haskell County, TX, Jack County, TX, Jones County, TX, Nolan County, TX, Palo Pinto County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 84 km from the middle of the area, began a volume at 04:01 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

Fort Worth, TX (KFWD), launched 00:00Z, 4.0 hours before the alert went out and 188 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3870 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1232 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

Issued	Product	Office	Counties	Lasted
May 24, 8:04 PM CDT	Mesoscale Discussion	SPC	Jackson	116 min
May 24, 8:29 PM CDT	Severe Thunderstorm Watch	SPC	Beckham, Caddo, Comanche, Cotton, Custer, Grady and 7 more	6 hr
May 24, 9:34 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Craig, Garfield, Grant, Kay, Noble and 5 more	56 min
May 25, 11:55 AM CDT	Mesoscale Discussion	SPC	Texas	65 min
May 25, 12:17 PM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Delaware, LeFlore, Mayes and 6 more	58 min
May 25, 12:39 PM CDT	Tornado Watch	SPC	Beaver, Cimarron, Texas	5 hr
May 25, 1:13 PM CDT	Tornado Watch	SPC	Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 5 more	7 hr
May 25, 2:49 PM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Delaware, Haskell, Mayes and 8 more	56 min
May 25, 5:29 PM CDT	Mesoscale Discussion	SPC	Beaver, Ellis, Harper, Roger Mills, Texas, Woodward	61 min
May 25, 5:51 PM CDT	Tornado Watch	SPC	Beaver, Ellis, Harper, Roger Mills, Texas, Woods and 1 more	7 hr
May 25, 6:06 PM CDT	Mesoscale Discussion	SPC	Adair, Delaware, Ottawa, Sequoyah	114 min
May 25, 3:11 PM CDT	Mesoscale Discussion	SPC	Brewster, Cochran, Jeff Davis, Loving, Presidio, Reeves and 3 more	94 min
May 25, 3:32 PM CDT	Severe Thunderstorm Watch	SPC	Andrews, Bailey, Brewster, Castro, Cochran, Crane and 22 more	7 hr
May 25, 3:50 PM CDT	Mesoscale Discussion	SPC	Brewster, Cochran, Jeff Davis, Loving, Presidio, Reeves and 3 more	85 min

Nearby

Mesoscale Discussions in Texas, 2008 Mesoscale Discussions in Oklahoma, 2008 Every mesoscale discussion in 2008

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.