Severe Thunderstorm Watch 370

Issued

Jul 10, 2021, 9:35 PM CDT (02:35 UTC)

Expired

Jul 11, 2021, 3:00 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Altus AFB radar (KFDR), 48 km from the middle of the area, began a volume at 02:36 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

10%

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

30%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 1247 Severe thunderstorm watch 367...368Jul 10, 7:21 PM CDT
• Mesoscale Discussion 1249 Severe thunderstorm watch 367Jul 10, 8:01 PM CDT
• Mesoscale Discussion 1251 Severe thunderstorm watch 367...368Jul 10, 9:21 PM CDT
• Mesoscale Discussion 1253 Severe thunderstorm watch 368...370Jul 10, 11:56 PM CDT
• Mesoscale Discussion 1254 Severe thunderstorm watch 370Jul 11, 2:46 AM CDT

704 
WWUS20 KWNS 110232
SEL0  
SPC WW 110232
OKZ000-TXZ000-110800-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 370
NWS Storm Prediction Center Norman OK
935 PM CDT Sat Jul 10 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southern Oklahoma
  Northwest and north central Texas

* Effective this Saturday night and Sunday morning from 935 PM
  until 300 AM CDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...A line of severe storms in central Oklahoma will likely
continue to spread south-southeastward into the overnight hours,
with additional storm development expected on the west end of the
line.  The strongest embedded storms will pose a threat for damaging
winds and isolated large hail.

The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 60 miles southwest of
Altus OK to 55 miles east northeast of Ardmore OK. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).

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 365...WW 367...WW
368...WW 369...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
35025.

...Thompson

Severe Thunderstorm Watches in Oklahoma, 2021Severe Thunderstorm Watches in Texas, 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.