Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 1685

July 7, 200538 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 7, 2005, 2:40 AM CDT for 38 counties in Texas. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued
Jul 7, 2005, 2:40 AM CDT (07:40 UTC)
Expired
Jul 7, 2005, 3:45 AM CDT
In force
65 min
Issued by
the Storm Prediction Center
All 38 counties

Andrews County, TX, Bailey County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Gaines County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Haskell County, TX, Hockley County, TX, Howard County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Parmer County, TX, Scurry County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 78 km from the middle of the area, began a volume at 07:44 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

Midland Regional, TX (KMAF), launched 00:00Z, 7.7 hours before the alert went out and 218 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 00:00Z on 2005-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 829 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 00:00Z on 2005-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
829 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
2837 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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 6, 7:25 PM CDTSevere Thunderstorm WatchSPCArmstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 20 more4 hr
Jul 6, 9:23 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Carson, Castro, Collingsworth and 24 more37 min
Jul 6, 11:13 PM CDTMesoscale DiscussionSPCAndrews, Armstrong, Borden, Briscoe, Carson, Castro and 34 more92 min
Jul 6, 11:45 PM CDTSevere Thunderstorm WatchSPCAndrews, Bailey, Borden, Briscoe, Castro, Cochran and 27 more5 hr
Jul 7, 4:03 AM CDTMesoscale DiscussionSPCAndrews, Archer, Bailey, Baylor, Borden, Briscoe and 38 more57 min
Jul 7, 9:33 AM CDTMesoscale DiscussionSPCAnderson, Bell, Brazos, Falls, Freestone, Grimes and 12 more117 min
Jul 7, 3:55 PM CDTSevere Thunderstorm WatchSPCBailey, Cochran, Dallam, Deaf Smith, Hartley, Oldham and 1 more5 hr

Nearby

Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005

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.