Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 356

April 10, 201623 counties in Oklahoma; 25 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2016, 9:31 PM CDT for 23 counties in Oklahoma; 25 counties in Texas. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued
Apr 10, 2016, 9:31 PM CDT (02:31 UTC)
Expired
Apr 10, 2016, 10:30 PM CDT
In force
59 min
Issued by
the Storm Prediction Center
All 48 counties

Beckham County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kiowa County, OK, Love County, OK, McClain County, OK, Murray County, OK, Oklahoma County, OK, Pontotoc County, OK, Pottawatomie County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Childress County, TX, Clay County, TX, Cooke County, TX, Cottle County, TX, Fisher County, TX, Foard County, TX, Hardeman County, TX, Haskell County, TX, Jack County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Montague County, TX, Nolan County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 39 km from the middle of the area, began a volume at 02:35 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

Norman, OK (KOUN), launched 00:00Z, 2.5 hours before the alert went out and 172 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, Norman, OK at 00:00Z on 2016-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2443 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, Norman, OK at 00:00Z on 2016-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
2443 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1418 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
1.2
Supercell composite
13.4

Open this sounding in Storm Lab

The text

As transmitted.

489 
ACUS11 KWNS 110232
SWOMCD
SPC MCD 110231 
TXZ000-OKZ000-110330-

MESOSCALE DISCUSSION 0356
NWS STORM PREDICTION CENTER NORMAN OK
0931 PM CDT SUN APR 10 2016

AREAS AFFECTED...NW AND NCNTRL TX...SRN AND CNTRL OK

CONCERNING...SEVERE THUNDERSTORM WATCH 78...79...

VALID 110231Z - 110330Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
78...79...CONTINUES.

SUMMARY...A WIND DAMAGE AND LARGE HAIL THREAT WILL CONTINUE LATE
THIS EVENING INTO THE OVERNIGHT PERIOD ACROSS NW AND NCNTRL TX
EXTENDING NWD INTO CNTRL OK. WW ISSUANCE WILL LIKELY BE NEEDED
BEYOND THE EXPIRATION OF WW 78 AND WW 79.

DISCUSSION...THE LATEST RADAR TRENDS SHOW A CLUSTER OF STRONG TO
SEVERE THUNDERSTORMS ACROSS NW TX EXTENDING EWD ACROSS SW OK. THIS
ACTIVITY IS LOCATED ALONG AN AXIS OF MODERATE INSTABILITY WHERE
MLCAPE IS ESTIMATED IN THE 1500 TO 2000 J/KG RANGE. IN
ADDITION...THE WSR-88D VWP AT FREDERICK SHOWS 0-6 KM SHEAR OF 60 KT
WITH SUBSTANTIAL DIRECTIONAL TURNING IN THE LOW-LEVELS. THIS IS
RESULTING IN 0-3 KM SHEAR OF OVER 400 M2/S2 SUGGESTING AN ISOLATED
TORNADO THREAT WILL CONTINUE. THIS ENVIRONMENT WILL CONTINUE TO
SUPPORT SUPERCELL DEVELOPMENT WITH ISOLATED LARGE HAIL AND WIND
DAMAGE POSSIBLE WITH ROTATING STORMS. THE BOUNDARY LAYER WILL COOL
GRADUALLY OVER THE NEXT FEW HOURS SUGGESTING THE TORNADO THREAT WILL
GRADUALLY DIMINISH...WITH HAIL AND DAMAGING WIND GUSTS BECOMING THE
MAIN THREATS AFTER 05Z.

..BROYLES/THOMPSON.. 04/11/2016

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...FWD...OUN...SJT...LUB...AMA...MAF...

LAT...LON   33889683 34509658 35359682 35649751 35539885 35259980
            34580039 33330078 32640077 32170034 32449878 33889683

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 7:36 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Carter, Cleveland, Coal and 23 more114 min
Apr 10, 8:42 PM CDTMesoscale DiscussionSPCCraig, Kay, Nowata, Osage, Ottawa, Rogers and 1 more2 hr
Apr 10, 9:52 PM CDTSevere Thunderstorm WatchSPCAtoka, Bryan, Caddo, Canadian, Carter, Cleveland and 24 more6 hr
Apr 10, 11:23 PM CDTMesoscale DiscussionSPCCraig, Nowata, Osage, Ottawa, Rogers, Washington37 min
Apr 11, 12:21 AM CDTMesoscale DiscussionSPCCarter, Cleveland, Coal, Garvin, Hughes, Jefferson and 10 more54 min
Apr 11, 12:57 AM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Choctaw, Creek, Haskell, Latimer and 10 more4 hr
Apr 11, 6:15 AM CDTMesoscale DiscussionSPCBryan, Carter, Choctaw, Jefferson, Johnston, Love and 1 more3 hr
Apr 11, 12:39 PM CDTMesoscale DiscussionSPCCarter, Jefferson, Love, Marshall2 hr
Apr 11, 1:38 PM CDTSevere Thunderstorm WatchSPCAtoka, Bryan, Carter, Choctaw, Coal, Garvin and 9 more9 hr
Apr 10, 8:54 PM CDTMesoscale DiscussionSPCDimmit, Edwards, Kinney, Maverick, Real, Uvalde and 2 more66 min
Apr 10, 11:06 PM CDTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Comal, Dimmit, Frio and 9 more54 min
Apr 11, 11:48 AM CDTMesoscale DiscussionSPCBowie, Cass, Marion2 hr
Apr 11, 1:05 PM CDTSevere Thunderstorm WatchSPCJasper, Newton, Sabine6 hr
Apr 11, 1:43 PM CDTMesoscale DiscussionSPCAustin, Brazos, Grimes, Hardin, Harris, Liberty and 8 more3 hr
Apr 11, 3:26 PM CDTMesoscale DiscussionSPCClay, Collin, Cooke, Dallas, Delta, Denton and 18 more94 min
Apr 11, 3:42 PM CDTMesoscale DiscussionSPCNewton, Sabine93 min
Apr 11, 4:49 PM CDTMesoscale DiscussionSPCCollin, Dallas, Denton, Hunt, Rains, Rockwall and 1 more86 min
Apr 11, 5:27 PM CDTMesoscale DiscussionSPCArcher, Baylor, Fisher, Haskell, Jones, King and 7 more93 min
Apr 11, 6:09 PM CDTMesoscale DiscussionSPCNewton, Sabine66 min
Apr 11, 6:58 PM CDTSevere Thunderstorm WatchSPCCherokee, Nacogdoches, Panola, Rusk, Shelby5 hr

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.