Tornado Watch 442

Issued

Dec 26, 2018, 2:11 PM CST (20:11 UTC)

Expired

Dec 27, 2018, 12:00 AM CST

In force

10 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Dyess AFB radar (KDYX), 73 km from the middle of the area, began a volume at 20:12 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

50%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

60%

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

20%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 1725Dec 26, 12:28 PM CST
• Mesoscale Discussion 1727Dec 26, 4:43 PM CST
• Mesoscale Discussion 1728Dec 26, 4:58 PM CST
• Mesoscale Discussion 1729Dec 26, 7:13 PM CST

288 
WWUS20 KWNS 262007
SEL2  
SPC WW 262007
TXZ000-270400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 442
NWS Storm Prediction Center Norman OK
210 PM CST Wed Dec 26 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Parts of central and north Texas

* Effective this Wednesday afternoon and evening from 210 PM
  until 1000 PM CST.

* Primary threats include...
  A few tornadoes possible
  Scattered damaging wind gusts to 70 mph likely
  Isolated large hail events to 1 inch in diameter possible

SUMMARY...Thunderstorms will persist through the evening within a
broken band in the warm sector, generally west of Interstate 35. 
Gradual destabilization of the low levels, in an environment with
strong low-level wind shear, will support a threat for tornadoes
with embedded supercells.  Later this evening, a squall line will
reach the watch area, with an attendant threat for damaging winds
and brief tornadoes with embedded circulations.

The tornado watch area is approximately along and 75 statute miles
east and west of a line from 60 miles northwest of Mineral Wells TX
to 55 miles east of Junction TX. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU2).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 441...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 22035.

...Thompson

Tornado Watches in Texas, 2018Every tornado watch in 2018

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.