Severe Thunderstorm Watch 141

Issued

May 4, 2021, 5:13 AM CDT (10:13 UTC)

Expired

May 4, 2021, 10:30 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Nashville radar (KOHX), 55 km from the middle of the area, began a volume at 10:16 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

10%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 518 Severe potential...watch unlikelyMay 4, 1:17 AM CDT
• Mesoscale Discussion 520 Severe thunderstorm watch 140May 4, 4:17 AM CDT
• Mesoscale Discussion 522 Severe thunderstorm watch 141May 4, 7:31 AM CDT
• Mesoscale Discussion 524 Severe potential...watch likelyMay 4, 9:03 AM CDT

302 
WWUS20 KWNS 041011
SEL1  
SPC WW 041011
ALZ000-KYZ000-TNZ000-041600-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 141
NWS Storm Prediction Center Norman OK
515 AM CDT Tue May 4 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northern Alabama
  South-central Kentucky
  Middle Tennessee

* Effective this Tuesday morning from 515 AM until 1100 AM CDT.

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

SUMMARY...A cluster of storms will continue generally eastward
across the region through the early morning hours with damaging
winds as the primary severe risk. This scenario is supported by a
very unstable air mass (noted in a special sounding from Nashville
at 06Z) and moderate-strength environmental winds.

The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 45 miles northeast of
Bowling Green KY to 95 miles south of Nashville TN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).

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 140...

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 500. Mean storm motion vector
27035.

...Guyer

Severe Thunderstorm Watches in Tennessee, 2021Severe Thunderstorm Watches in Kentucky, 2021Severe Thunderstorm Watches in Alabama, 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.