Severe Thunderstorm Warning 59, NWS Wilmington, NC

Area Forecast Discussion
National Weather Service Wilmington NC
353 PM EDT Wed May 15 2024

.SYNOPSIS...
Strong to severe thunderstorms may develop this afternoon into
this evening ahead of a cold front that will drop in from the
north. High pressure should bring dry weather Thursday with
pleasant temperatures. Rain chances will increase again this
weekend as a new storm system advances eastward. Drier and
warmer weather should develop next week.

&&

.NEAR TERM /THROUGH THURSDAY/...
An upper low will move through the area this afternoon and
evening, bringing scattered thunderstorms to the area as it
interacts with warm, moist air and a frontal boundary. Some of
these storms could produce large hail and wind gusts of 60 mph
or greater. The area is in a severe thunderstorm watch until 8
PM. Convection should come to an end this evening with dry
weather expected Thursday. Lows tonight will fall to the lower
60s with highs Thursday in the lower 80s.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/...
An H5 ridge axis will move across the area Thursday night and
off the coast Friday morning. This change will allow the old
low off the Mid-Atlantic coast to shift farther offshore and
allow a dampening shortwave to move across the forecast area
during Friday afternoon/evening with some increases in rainfall
chances. Would trend with higher POPs by that time however
moisture is still somewhat limited Friday for this part of the
Carolinas, with better advection earlier on in the long term
period. Blend of MAV/MET looks reasonable for the highs/lows
during this period.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
The mid/upper low will be across the MS Valley during Saturday
and will direct impulses from the Deep South into the Carolinas
along with an increase in PWATs (around 2 inches) during the
day. GFS ensemble precipitation also suggest categorical to
likely POPs will be needed. Sunday looks wet as well with the
upper trough across the Carolinas. Big questions remain for the
Monday-Tuesday with potential/positioning for a closed low
development farther east than currently shown. If the cut-off
occurs farther east then POPs will trend downward due to more
influence of nearby mid/upper ridge across the Carolinas. At
this time, favor the drier scenario Monday through Wednesday,
but will need to closely watch how this evolves. Otherwise,
highs will be at or above normal through Sunday, then below
normal Monday and Tuesday.

&&

.AVIATION /18Z WEDNESDAY THROUGH SUNDAY/...
Scattered storms are expected this afternoon and early evening.
All terminals showing at least tempo tsra to account for this.
A severe thunderstorm watch is in effect, so gusts over 50 KT
and hail in excess of 1 inch is possible at area terminals.
Confidence in occurrence at individual sites is too low for
inclusion in terminals attm. If storms with this potential
threaten individual sites, amendments will be issued. After
showers and storms end, a period of IFR is possible around
daybreak at all terminals but strong May sun should quickly
raise conditions to VFR.

Extended Outlook...Periodic flight restrictions are possible
early Wed evening from thunderstorm activity. VFR conditions to
dominate Thu through Fri. The next system with potential flight
restrictions will affect the area this weekend.&&

.MARINE...
Through Thursday...Southwest winds to 10 to 15 KT are expected
tonight and will become N to NW by daybreak before becoming
light and variable by afternoon. Seas of 3 to 5 FT tonight will
subside to 2 to 4 FT Thursday.

Thursday night through Monday...A large area of low pressure
off the Mid-Atlantic coast will drift farther offshore Thursday
night into Friday. Approaching low pressure from the west will
allow winds to become southerly during Saturday with veering
Sunday as the low moves off the coast. Northerly winds are
expected Monday with the low possibly off the NC/SC coast. If
the low stays just offshore then the northerly winds will be
higher.

&&

.TIDES/COASTAL FLOODING...
Other - Rip Currents: Yesterday's strong onshore winds have abated,
however a 4 foot southerly swell every 8 seconds continues to crash
onshore. South-facing beaches on Brunswick County and extreme
northeasterly Horry County run orthogonal to this swell and will
have the largest potential of rip current activity through this
evening.

&&

.ILM WATCHES/WARNINGS/ADVISORIES...
NC...High Risk for Rip Currents until 8 PM EDT this evening for NCZ110.
SC...High Risk for Rip Currents until 8 PM EDT this evening for SCZ054.
MARINE...None.

&&

SYNOPSIS...SRP
NEAR TERM...31
SHORT TERM...SRP
LONG TERM...SRP
AVIATION...31
MARINE...SRP/31
TIDES/COASTAL FLOODING...ILM

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Special Weather Statement
National Weather Service Wilmington NC
654 PM EDT Wed May 15 2024

SCZ054-058-152330-
Coastal Horry SC-Central Horry SC-
654 PM EDT Wed May 15 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN HORRY COUNTY
THROUGH 730 PM EDT...

At 653 PM EDT, Doppler radar was tracking a strong thunderstorm over
Forestbrook, or over Red Hill, moving east at 25 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Myrtle Beach, Myrtle Beach Airport, Socastee, Red Hill, North Myrtle
Beach Airport, Horry Georgetown Technical College Conway Campus,
Hand, Nixonville, Barefoot Landing Area Of North Myrtle Beach,
Forestbrook, Coastal Carolina University, Briarcliffe Acres,
Lighthouse Care Center Of Conway, Conway Medical Center, and Grand
Strand Regional Medical Center.

This includes the following highways...
 SC Highway 31 between mile markers 5 and 19.
 SC Highway 22 between mile markers 22 and 26.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northeastern South Carolina.

&&

LAT...LON 3380 7907 3390 7875 3380 7872 3374 7882
      3370 7888 3368 7889 3366 7904
TIME...MOT...LOC 2253Z 260DEG 21KT 3375 7897

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

MORGAN

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