Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 185

March 8, 2016Bryan County, Love County, Marshall County, Oklahoma; 41 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 8, 2016, 9:00 AM CST for Bryan County, Love County, Marshall County, Oklahoma; 41 counties in Texas. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Mar 8, 2016, 9:00 AM CST (15:00 UTC)
Expired
Mar 8, 2016, 10:30 AM CST
In force
90 min
Issued by
the Storm Prediction Center
All 44 counties

Bryan County, OK, Love County, OK, Marshall County, OK, Anderson County, TX, Bastrop County, TX, Bell County, TX, Bosque County, TX, Burleson County, TX, Burnet County, TX, Collin County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Freestone County, TX, Grayson County, TX, Hamilton County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Lampasas County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Rains County, TX, Robertson County, TX, Rockwall County, TX, Tarrant County, TX, Travis County, TX, Van Zandt County, TX, Williamson County, TX, Wood County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 34 km from the middle of the area, began a volume at 15:04 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

Fort Worth, TX (KFWD), launched 12:00Z, 3.0 hours before the alert went out and 63 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, Fort Worth, TX at 12:00Z on 2016-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1032 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, Fort Worth, TX at 12:00Z on 2016-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.1939587897Sfc1 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
1032 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
1.5
Supercell composite
6.5

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
Mar 8, 3:36 AM CSTMesoscale DiscussionSPCComanche, Cotton, Harmon, Jackson, Tillman84 min
Mar 8, 12:41 PM CSTTornado WatchSPCMcCurtain5 hr
Mar 7, 6:42 PM CSTMesoscale DiscussionSPCBosque, Comanche, Cooke, Dallas, Denton, Ellis and 10 more63 min
Mar 7, 11:41 PM CSTMesoscale DiscussionSPCBorden, Coke, Concho, Crane, Crockett, Dawson and 27 more2 hr
Mar 8, 1:18 AM CSTSevere Thunderstorm WatchSPCBosque, Brown, Callahan, Coke, Coleman, Collin and 48 more10 hr
Mar 8, 3:57 AM CSTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 36 more2 hr
Mar 8, 7:06 AM CSTMesoscale DiscussionSPCAnderson, Austin, Bastrop, Bell, Blanco, Bosque and 64 more2 hr
Mar 8, 7:24 AM CSTTornado WatchSPCAnderson, Bastrop, Bell, Blanco, Brazos, Burleson and 29 more8 hr
Mar 8, 10:46 AM CSTMesoscale DiscussionSPCAngelina, Cherokee, Hardin, Houston, Jasper, Liberty and 12 more89 min
Mar 8, 1:10 PM CSTMesoscale DiscussionSPCBell, Blanco, Bosque, Brown, Burnet, Coke and 32 more95 min
Mar 8, 3:11 PM CSTMesoscale DiscussionSPCAnderson, Angelina, Bowie, Cass, Chambers, Cherokee and 24 more94 min
Mar 8, 5:52 PM CSTMesoscale DiscussionSPCAngelina, Hardin, Jasper, Newton, Sabine, San Augustine and 2 more83 min

Nearby

Mesoscale Discussions in Texas, 2016Mesoscale Discussions in Oklahoma, 2016Every mesoscale discussion in 2016

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.