Tornado Watch 258

Issued

May 23, 2017, 2:45 PM EDT (18:45 UTC)

Expired

May 23, 2017, 11:00 PM EDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Charleston,SC radar (KCLX), 50 km from the middle of the area, began a volume at 18:44 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

50%

One or more EF2 to EF5 tornadoes

20%

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

60%

• Mesoscale Discussion 815May 23, 12:22 PM EDT
• Mesoscale Discussion 816May 23, 2:02 PM EDT
• Mesoscale Discussion 818May 23, 4:50 PM EDT
• Mesoscale Discussion 821May 23, 8:46 PM EDT

497 
WWUS20 KWNS 231842
SEL8  
SPC WW 231842
FLZ000-GAZ000-SCZ000-CWZ000-240300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 258
NWS Storm Prediction Center Norman OK
240 PM EDT Tue May 23 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  northern Florida
  southeastern Georgia
  central and southern South Carolina
  Coastal Waters

* Effective this Tuesday afternoon and evening from 240 PM until
  1100 PM EDT.

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

SUMMARY...An area of thunderstorms now spreading across parts of
central and southern Georgia, and adjacent portions of northern
Florida, is expected to continue developing northeastward across
parts of the piedmont and coastal plain of South Carolina through
this evening.  This activity coincides with strengthening wind
fields which will support a risk for tornadoes and potential
damaging surface gusts.

The tornado watch area is approximately along and 65 statute miles
north and south of a line from 15 miles south southwest of Vidalia
GA to 50 miles east northeast of Orangeburg SC. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 257...

AVIATION...Tornadoes and 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 24035.

...Kerr

Tornado Watches in Georgia, 2017Tornado Watches in South Carolina, 2017Every tornado watch in 2017

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.