Alert archive / Texas / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 175

May 13, 201627 counties in Oklahoma; 42 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 13, 2016, 3:28 PM CDT for 27 counties in Oklahoma; 42 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
May 13, 2016, 3:28 PM CDT (20:28 UTC)
Expired
May 13, 2016, 11:00 PM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 69 counties

Alfalfa County, OK, Beaver County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Noble County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Bailey County, TX, Baylor County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Stonewall County, TX, Swisher County, TX, Wheeler County, TX, Wilbarger County, TX

The radar

The Amarillo radar (KAMA), 138 km from the middle of the area, began a volume at 20:27 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 13, 3:47 PM CDTSevere Thunderstorm WarningAMAWheeler43 min
May 13, 3:55 PM CDTSevere Thunderstorm WarningAMAGray, Wheeler50 min
May 13, 4:23 PM CDTSevere Thunderstorm WarningAMACarson52 min
May 13, 4:25 PM CDTSevere Thunderstorm WarningAMAWheeler50 min
May 13, 4:27 PM CDTSevere Thunderstorm WarningAMACollingsworth, Wheeler48 min
May 13, 4:48 PM CDTSevere Thunderstorm WarningOUNBeckham57 min
May 13, 4:48 PM CDTSevere Thunderstorm WarningAMACollingsworth, Wheeler42 min
May 13, 4:51 PM CDTSevere Thunderstorm WarningAMAArmstrong, Donley39 min
May 13, 4:54 PM CDTSevere Thunderstorm WarningLUBHockley, Lamb36 min
May 13, 5:06 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Major54 min
May 13, 5:08 PM CDTSevere Thunderstorm WarningLUBSwisher21 min
May 13, 5:11 PM CDTSevere Thunderstorm WarningAMACollingsworth49 min
May 13, 5:12 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant48 min
May 13, 5:29 PM CDTSevere Thunderstorm WarningAMAArmstrong, Donley47 min
May 13, 5:31 PM CDTSevere Thunderstorm WarningAMACollingsworth44 min
May 13, 5:48 PM CDTSevere Thunderstorm WarningLUBHall27 min
May 13, 5:53 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant, Kay, Noble52 min
May 13, 5:56 PM CDTSevere Thunderstorm WarningAMAArmstrong, Donley49 min
May 13, 6:02 PM CDTSevere Thunderstorm WarningOUNHarmon48 min
May 13, 6:15 PM CDTSevere Thunderstorm WarningAMACollingsworth25 min
May 13, 6:27 PM CDTSevere Thunderstorm WarningLUBHall48 min
May 13, 6:37 PM CDTSevere Thunderstorm WarningOUNHarmon, Jackson53 min
May 13, 6:41 PM CDTSevere Thunderstorm WarningOUNKay49 min
May 13, 6:47 PM CDTSevere Thunderstorm WarningOUNKingfisher43 min
May 13, 7:14 PM CDTSevere Thunderstorm WarningOUNBeckham, Custer, Roger Mills, Washita46 min
May 13, 7:14 PM CDTSevere Thunderstorm WarningLUBChildress, Cottle, Hall, Motley46 min
May 13, 7:23 PM CDTSevere Thunderstorm WarningOUNKay, Noble24 min
May 13, 7:55 PM CDTSevere Thunderstorm WarningOUNCuster, Washita29 min
May 13, 7:56 PM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher34 min
May 13, 7:59 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley61 min
May 13, 8:09 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman, Knox51 min
May 13, 8:59 PM CDTSevere Thunderstorm WarningLUBDickens, Kent, King, Stonewall46 min
May 13, 9:00 PM CDTSevere Thunderstorm WarningOUNFoard, Knox45 min
May 13, 9:44 PM CDTSevere Thunderstorm WarningOUNKnox20 min
May 13, 9:45 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady30 min
May 13, 10:19 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita41 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.5 hours before the alert went out and 137 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 12:00Z on 2016-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Amarillo Airport, TX at 12:00Z on 2016-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 square meters per square second.19395878Sfc1 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
6 J/kg
Mixed-layer CIN
-426 J/kg
Mixed-layer LCL
1420 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 1:40 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Dewey, Ellis, Harmon and 4 more2 hr
May 13, 6:17 PM CDTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 19 more118 min
May 13, 3:30 PM CDTMesoscale DiscussionSPCCulberson, Loving, Reeves90 min

Nearby

Severe Thunderstorm Watches in Texas, 2016Severe Thunderstorm Watches in Oklahoma, 2016Every severe thunderstorm watch 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.