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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 300
NWS Storm Prediction Center Norman OK
540 PM EDT Sat Jul 21 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and central Georgia
Western North Carolina
Western South Carolina
* Effective this Saturday afternoon and Sunday morning from 540
PM until 200 AM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail likely with isolated very large hail events
to 3 inches in diameter possible
A tornado or two possible
SUMMARY...Strong mid/high-level northwesterly winds by mid/late-July
standards will continue to overspread a moist and moderate to
strongly unstable air mass across the region, including some areas
that were impacted by early-day storms. This will include the
potential for some supercells capable of large hail and damaging
winds with storms expected to generally spread southeastward through
The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 40 miles west northwest
of Auburn AL to 35 miles east southeast of Spartanburg SC. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).
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
AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector