Severe Thunderstorm Watch 333

Issued

Jul 4, 2021, 2:37 PM MDT (20:37 UTC)

Expired

Jul 4, 2021, 10:00 PM MDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

65 kt

The Amarillo radar (KAMA), 155 km from the middle of the area, began a volume at 20:36 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

30%

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

90%

• Mesoscale Discussion 1147 Severe potential...watch possibleJul 4, 1:36 PM MDT
• Mesoscale Discussion 1149 Severe thunderstorm watch 333Jul 4, 5:29 PM MDT
• Mesoscale Discussion 1151 Severe thunderstorm watch 334Jul 4, 5:56 PM MDT
• Mesoscale Discussion 1153 Severe thunderstorm watch 333Jul 4, 8:20 PM MDT

077 
WWUS20 KWNS 042035
SEL3  
SPC WW 042035
COZ000-NMZ000-OKZ000-TXZ000-050400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 333
NWS Storm Prediction Center Norman OK
335 PM CDT Sun Jul 4 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southeast Colorado
  Northeast/east-central New Mexico
  Oklahoma Panhandle
  Texas Panhandle and South Plains

* Effective this Sunday afternoon and evening from 335 PM until
  1100 PM CDT.

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

SUMMARY...Multiple corridors of strong to severe thunderstorm
development are expected late this afternoon through early evening,
initially including southeast Colorado/northeast New Mexico into the
Texas/Oklahoma Panhandles. Large hail will initially be the primary
hazard. By evening, multiple clusters/bands of storms should develop
and generally move southward with an increasing potential for
damaging winds.

The severe thunderstorm watch area is approximately along and 110
statute miles east and west of a line from 15 miles northwest of La
Junta CO to 50 miles west southwest of Lubbock TX. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).

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.

&&

AVIATION...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 550. Mean storm motion vector
35020.

...Guyer

Severe Thunderstorm Watches in Texas, 2021Severe Thunderstorm Watches in Colorado, 2021Severe Thunderstorm Watches in New Mexico, 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.