Severe Thunderstorm Watch 204

Issued

May 25, 2021, 4:08 PM CDT (21:08 UTC)

Expired

May 25, 2021, 11:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Altus AFB radar (KFDR), 133 km from the middle of the area, began a volume at 21:08 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

20%

One or more EF2 to EF5 tornadoes

2%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 734 Severe potential...watch possibleMay 25, 2:02 PM CDT
• Mesoscale Discussion 736 Severe potential...watch possibleMay 25, 2:56 PM CDT
• Mesoscale Discussion 739 Severe thunderstorm watch 204May 25, 7:21 PM CDT
• Mesoscale Discussion 742 Severe thunderstorm watch 204May 25, 10:10 PM CDT

834 
WWUS20 KWNS 252106
SEL4  
SPC WW 252106
OKZ000-TXZ000-260400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 204
NWS Storm Prediction Center Norman OK
405 PM CDT Tue May 25 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Western Oklahoma
  West/Northwest Texas

* Effective this Tuesday afternoon and evening from 405 PM until
  1100 PM CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2.5
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Multiple corridors of severe thunderstorm development are
expected, most probable near residual outflow and the dryline/front
across west/northwest Texas. While winds through a deep layer are
not overly strong, ample moisture/instability will support some
transient supercells aside from more prevalent multicells. Large
hail will be the primary risk initially. Storms should eventually
cluster and accelerate southeastward across the region this evening
with a large hail/severe wind risk continuing toward the Low Rolling
Plains and west/northwest Texas as well as western Oklahoma.

The severe thunderstorm watch area is approximately along and 80
statute miles east and west of a line from 80 miles northeast of
Borger TX to 45 miles west southwest of San Angelo TX. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).

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 203...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
31020.

...Guyer

Severe Thunderstorm Watches in Texas, 2021Severe Thunderstorm Watches in Oklahoma, 2021Every severe thunderstorm 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.