Severe Thunderstorm Watch 528

Issued

Oct 15, 2021, 6:05 PM CDT (23:05 UTC)

Expired

Oct 15, 2021, 10:29 PM CDT

In force

4 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Nashville radar (KOHX), 98 km from the middle of the area, began a volume at 23:07 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

10%

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

10%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 1866 Severe thunderstorm watch 527Oct 15, 2:52 PM CDT
• Mesoscale Discussion 1867 Severe potential...watch possibleOct 15, 5:06 PM CDT

383 
WWUS20 KWNS 152303
SEL8  
SPC WW 152303
ALZ000-MSZ000-TNZ000-160500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 528
NWS Storm Prediction Center Norman OK
605 PM CDT Fri Oct 15 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northern Alabama
  Northern Mississippi
  Middle Tennessee

* Effective this Friday night from 605 PM until Midnight 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...Clusters of storms will continue to move
east-northeastward this evening across the region. A seasonally
moist environment and strong deep-layer/low-level shear will support
organized storms including a few supercells and bowing segments.
Damaging winds and severe hail are expected to be the most common
hazards, although a tornado could also occur.

The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 35 miles north northeast
of Nashville TN to 20 miles southeast of Oxford MS. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).

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 527...

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
26035.

...Guyer

Severe Thunderstorm Watches in Tennessee, 2021Severe Thunderstorm Watches in Mississippi, 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.