Tornado Watch 190

Issued

May 18, 2021, 7:34 PM CDT (00:34 UTC)

Expired

May 19, 2021, 1:56 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

65 kt

The Houston radar (KHGX), 143 km from the middle of the area, began a volume at 00:35 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.

Two or more tornadoes

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

30%

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 674 Tornado watch 188May 18, 3:52 PM CDT
• Mesoscale Discussion 676 Severe potential...watch possibleMay 18, 5:10 PM CDT
• Mesoscale Discussion 679 Tornado watch 188May 18, 6:13 PM CDT
• Mesoscale Discussion 681 Tornado watch 188...190May 18, 8:54 PM CDT

212 
WWUS20 KWNS 190030
SEL0  
SPC WW 190030
TXZ000-CWZ000-190700-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 190
NWS Storm Prediction Center Norman OK
730 PM CDT Tue May 18 2021

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southeast and south Texas
  Coastal Waters

* Effective this Tuesday night and Wednesday morning from 730 PM
  until 200 AM CDT.

* Primary threats include...
  A couple tornadoes possible
  Scattered damaging winds and isolated significant gusts to 75
    mph possible
  Isolated very large hail events to 2 inches in diameter possible

SUMMARY...Slow-moving QLCS with embedded supercell structures should
evolve east-northeast towards the Upper to Middle Texas Coast
tonight. Brief tornadoes and damaging winds will be the primary
severe hazards, with large hail also possible with any trailing
cells to the southwest.

The tornado watch area is approximately along and 55 statute miles
north and south of a line from 40 miles north northeast of Houston
TX to 70 miles west of Beeville TX. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU0).

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 188...WW 189...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 600. Mean
storm motion vector 25025.

...Grams

Tornado Watches in Texas, 2021Every tornado watch in 2021

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.