Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 686

May 22, 20164 counties in Kansas; Beaver County, Oklahoma; 16 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 22, 2016, 9:10 PM CDT for 4 counties in Kansas; Beaver County, Oklahoma; 16 counties in Texas. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued
May 22, 2016, 9:10 PM CDT (02:10 UTC)
Expired
May 22, 2016, 10:15 PM CDT
In force
65 min
Issued by
the Storm Prediction Center
All 21 counties

Gray County, KS, Haskell County, KS, Meade County, KS, Seward County, KS, Beaver County, OK, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Dickens County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hemphill County, TX, Kent County, TX, King County, TX, Lipscomb County, TX, Motley County, TX, Ochiltree County, TX, Roberts County, TX, Stonewall County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 102 km from the middle of the area, began a volume at 02:11 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.2 hours before the alert went out and 101 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, Amarillo Airport, TX at 00:00Z on 2016-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2186 joules per kilogram.LCLEL10008507005003002001001 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, Amarillo Airport, TX at 00:00Z on 2016-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
2186 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1794 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.2
Supercell composite
5.7

Open this sounding in Storm Lab

The text

As transmitted.

275 
ACUS11 KWNS 230211
SWOMCD
SPC MCD 230210 
TXZ000-OKZ000-KSZ000-230315-

MESOSCALE DISCUSSION 0686
NWS STORM PREDICTION CENTER NORMAN OK
0910 PM CDT SUN MAY 22 2016

AREAS AFFECTED...WRN TX THROUGH SWRN KS

CONCERNING...TORNADO WATCH 190...

VALID 230210Z - 230315Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 190 CONTINUES.

SUMMARY...MOST OR ALL OF TORNADO WATCH 190 WILL BE ALLOWED TO EXPIRE
AT 03Z. TORNADO THREAT SHOULD BECOME INCREASINGLY MARGINAL BEYOND
03Z FOR THE REMAINING PORTIONS OF THE WW.

DISCUSSION...STORMS HAVE EITHER CONSOLIDATED INTO AN MCS OVER THE
SERN TX PANHANDLE OR ARE IN THE PROCESS OF BECOMING LESS ORGANIZED.
A SUPERCELL PERSISTS OVER THE NERN TX PANHANDLE...AND THIS STORM
MIGHT REMAIN CAPABLE OF PRODUCING A TORNADO THROUGH 03Z.
HOWEVER...STORM MERGERS AND A STABILIZING BOUNDARY LAYER HAVE
RESULTED IN A GRADUAL DECREASE IN STORM INTENSITIES AND
ORGANIZATION...AND THIS TREND WILL LIKELY CONTINUE THE REMAINDER OF
THE EVENING.

..DIAL.. 05/23/2016

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

ATTN...WFO...DDC...SJT...LUB...AMA...MAF...

LAT...LON   38080094 37670022 33270015 32510059 33060108 36970110
            38080094

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 7:02 PM CDTMesoscale DiscussionSPCHaskell, Meade, Seward, Stevens118 min
May 22, 10:19 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Lane, Logan and 9 more86 min
May 23, 2:18 PM CDTMesoscale DiscussionSPCClark, Comanche, Finney, Ford, Gray, Haskell and 4 more117 min
May 23, 2:30 PM CDTMesoscale DiscussionSPCGraham, Jewell, Mitchell, Norton, Osborne, Phillips and 3 more2 hr
May 23, 3:37 PM CDTTornado WatchSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 5 more8 hr
May 23, 6:08 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 5 more2 hr
May 22, 7:46 PM CDTMesoscale DiscussionSPCComanche, Greer, Jackson, Kiowa, Tillman89 min
May 22, 8:48 PM CDTSevere Thunderstorm WatchSPCComanche, Cotton, Greer, Harmon, Jackson, Jefferson and 3 more5 hr
May 23, 1:36 AM CDTMesoscale DiscussionSPCCarter, Comanche, Cotton, Jefferson, Love, Marshall and 2 more84 min
May 23, 2:15 AM CDTSevere Thunderstorm WatchSPCCarter, Cotton, Jackson, Jefferson, Love, Marshall and 2 more5 hr
May 23, 4:58 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Jefferson, Love, Marshall and 1 more62 min
May 22, 9:35 PM CDTMesoscale DiscussionSPCIrion, Reagan85 min
May 23, 1:32 PM CDTMesoscale DiscussionSPCBorden, Coke, Crockett, Crosby, Dawson, Garza and 15 more118 min
May 23, 2:32 PM CDTTornado WatchSPCBorden, Brewster, Briscoe, Childress, Coke, Cottle and 37 more7 hr
May 23, 5:29 PM CDTMesoscale DiscussionSPCBorden, Briscoe, Coke, Cottle, Crockett, Crosby and 30 more91 min

Nearby

Mesoscale Discussions in Texas, 2016Mesoscale Discussions in Kansas, 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.