Severe Thunderstorm Watch 331

Issued

Jun 14, 2017, 6:02 PM CDT (23:02 UTC)

Expired

Jun 15, 2017, 12:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

The Lubbock radar (KLBB), 82 km from the middle of the area, began a volume at 23:01 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.

Two or more tornadoes

10%

One or more EF2 to EF5 tornadoes

2%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 1031Jun 14, 3:33 PM CDT
• Mesoscale Discussion 1032Jun 14, 3:37 PM CDT
• Mesoscale Discussion 1036Jun 14, 7:56 PM CDT

327 
WWUS20 KWNS 142300
SEL1  
SPC WW 142300
OKZ000-TXZ000-150500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 331
NWS Storm Prediction Center Norman OK
600 PM CDT Wed Jun 14 2017

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southwest Oklahoma
  West/southwest Texas

* Effective this Wednesday night from 600 PM until Midnight CDT.

* Primary threats include...
  Isolated very large hail events to 3 inches in diameter possible
  Isolated damaging wind gusts to 70 mph possible

SUMMARY...Isolated strong to severe thunderstorms are expected to
develop near a dryline within a hot and relatively moist/unstable
environment. A few supercells capable of large hail and
severe-caliber wind gusts are expected this evening.

The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 35 miles north northwest
of Altus OK to 70 miles south southwest of Midland TX. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 328...WW 329...WW 330...

AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29020.

...Guyer

Severe Thunderstorm Watches in Texas, 2017Severe Thunderstorm Watches in Oklahoma, 2017Every severe thunderstorm watch in 2017

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.