Severe Thunderstorm Warning 8, NWS Charleston, SC

083 
WWUS52 KCHS 312051
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
451 PM EDT Tue Mar 31 2020

SCC029-312115-
/O.CON.KCHS.SV.W.0008.000000T0000Z-200331T2115Z/
Colleton SC-
451 PM EDT Tue Mar 31 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR COLLETON COUNTY...

At 450 PM EDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Canadys to near Ruffin, moving
east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Smoaks, Williams, Islandton, Canadys and Ruffin. 

This warning includes I-95 in South Carolina between mile markers 65
and 69.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

For your protection move to an interior room on the lowest floor of a
building.

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.

&&

LAT...LON 3315 8070 3309 8066 3307 8062 3306 8059
      3305 8059 3289 8096 3296 8102 3305 8086
TIME...MOT...LOC 2050Z 263DEG 37KT 3311 8071 3296 8081 

HAIL...<.75IN
WIND...60MPH
 
$$

Area Forecast Discussion
National Weather Service Charleston SC
415 PM EDT Tue Mar 31 2020

.SYNOPSIS...
A storm system will track through the SC Lowcountry and GA
Coastal Empire into this evening. Dry high pressure will then
return into the weekend before a weak front possibly impacts
the area early next week.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
This evening: The main concern will be tracking thunderstorms
across the area. So far, the most interesting convection is
further north near the center of the low and along the northward
lifting boundary. There should be decent local helicity in the
vicinity of the front and low, which likely explains why these
storms are exhibiting better rotation and structure. The Tornado
Watch remains in effect for the entire area through 9 pm, though
many counties will likely be cancelled early as thunderstorms
clear and move to the east.

Tonight: The deepening surface low will quickly move east of the
area this evening. The chance for thunder will end early, but
with the influence of the mid/upper level trough overhead,
wrap around showers will continue for much of the overnight.
Most of this shower activity will impact areas along and north
to northeast of the Savannah River. Shower activity should be
scattered, and rain chances are held in the 30-50 percent range.
Skies will start to at least partially clear from the southwest,
but should still be mostly cloudy for most of the night. Much
cooler air will steadily filter in through the night, with lows
reaching the upper 40s well inland, ranging to the low to mid
50s at the coast.

Lake Winds: Northwest winds will strengthen across Lake Moultrie
tonight. Frequent wind gusts are expected into the 20-25 knot
range, but should mostly stay below 25 knots. No Lake Wind
Advisory will be issued at this time, but could be needed later
this evening.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/...
High confidence this period with high pressure bringing a return of
dry weather and mostly cooler than normal temperatures generally in
the 60s/70s during the day and 40s at night. Can't completely rule
out some sheltered inland spots even getting into the upper 30s
however Wednesday/Thursday nights.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
Surface high pressure will shift east into the Atlantic over
the weekend. A weak front could then approach early next week,
however it doesn't appear to really make it into the area. Dry
conditions are expected on Saturday, then rain chances will
return Sunday and Monday as onshore flow brings moisture back
into the area. Forecast maintains 20-30% PoPs. Temperatures will
gradually warm through the period.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
The main challenge is timing the arrival of thunderstorms into
the terminals. Current thinking is around 21z at KSAV and around
22z at KCHS. As thunderstorms approach the terminals, ceilings
and visibilities will quickly decrease, leading to IFR and
possible LIFR conditions at times. Higher wind gusts are
expected with thunderstorms, have put 30 kt in the forecast for
now. As the cold front moves quickly through both terminals
around 00Z, conditions will start to improve at KSAV soon after.
MVFR/IFR conditions will persist through most of the TAF period
at KCHS with improvement after daybreak. Winds could gust to
around 20 knots for much of the overnight.

Extended Aviation Outlook: Low risk for restrictions Saturday
night/Sunday due to low clouds/showers.

&&

.MARINE...
Tonight: A deepening surface low will quickly push to the east.
As it does and the cold front moves offshore, northwest winds
will surge quickly across the local waters, especially late
tonight. Small Craft Advisories are in effect for all waters,
including the Charleston Harbor. The strongest winds are
expected across the southern South Carolina waters and the
Georgia waters, where frequent gusts to 30 knots are expected.
Conditions should stay below gale force, but can't completely
rule out an isolated gust to 35 knots. Seas will increase in
response to the strengthening winds, with up to 5 feet out to 20
nm and up to 7 feet in the outer reaches of the outer Georgia
waters.

Wednesday through Sunday: High confidence this period with high
pressure prevailing. The main concern will be the first part of
Wednesday which will feature Small Craft Advisory conditions
for all waters until strengthening low pressure to the northeast
moves far enough away.

&&

.TIDES/COASTAL FLOODING...
Tide levels will be rising later this week into next week due
to astronomical influences from the upcoming full moon and lunar
perigee and also potentially due to meteorological influences
from onshore winds. This could lead to minor saltwater
inundation around times of the early morning high tides starting
next week.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.
MARINE...Small Craft Advisory from midnight tonight to 11 AM EDT
     Wednesday for AMZ330.
     Small Craft Advisory from 8 PM this evening to 11 AM EDT
     Wednesday for AMZ352-354.
     Small Craft Advisory from 8 PM this evening to 2 PM EDT
     Wednesday for AMZ350-374.

&&

NEAR TERM...BSH
SHORT TERM...RJB
LONG TERM...ETM
AVIATION...BSH/RJB
MARINE...BSH/RJB
TIDES/COASTAL FLOODING...

Hazardous Weather Outlook
National Weather Service Charleston SC
246 PM EDT Tue Mar 31 2020

AMZ330-350-352-354-GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-
047>052-011900-
Charleston Harbor-
Waters from South Santee River to Edisto Beach SC out 20 NM-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-Jenkins-Screven-Candler-Bulloch-
Effingham-Tattnall-Evans-Inland Bryan-Coastal Bryan-Inland Chatham-
Coastal Chatham-Long-Inland Liberty-Coastal Liberty-Inland McIntosh-
Coastal McIntosh-Allendale-Hampton-Inland Colleton-Dorchester-
Inland Berkeley-Inland Jasper-Beaufort-Coastal Colleton-Charleston-
Coastal Jasper-Tidal Berkeley-
246 PM EDT Tue Mar 31 2020

...TORNADO WATCH 78 IN EFFECT UNTIL 9 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters,
southeast Georgia and southeast South Carolina.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Please relay any reports of hazardous weather including, but not
limited to large hail, damaging winds and flooding to the National
Weather Service in Charleston at 1-888-383-2024.

AMZ374-011900-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
246 PM EDT Tue Mar 31 2020

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...This afternoon and tonight.

Severe thunderstorms: Strong thunderstorms could move into the outer
Georgia waters this evening. Strong wind gusts will be the primary
concern.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Please relay any reports of hazardous weather including, but not
limited to large hail, damaging winds and flooding to the National
Weather Service in Charleston at 1-888-383-2024.

Special Weather Statement
National Weather Service Charleston SC
316 PM EDT Tue Mar 31 2020

GAZ087-088-SCZ040-312000-
Jenkins-Screven-Allendale-
316 PM EDT Tue Mar 31 2020

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SCREVEN...JENKINS AND
ALLENDALE COUNTIES...

At 316 PM EDT, National Weather Service doppler radar indicated
strong thunderstorms along a line extending from near Alexander to
near Summertown, and moving east at 50 mph.

  HAZARD...strong winds 45 to 55 mph.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light, unsecured objects.

Some locations in the path of these storms include...
Allendale, Millen, Sylvania, Butts, Fairfax, Hiltonia, Sycamore and
Rocky Ford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch is in effect. Thunderstorms can produce tornadoes
suddenly, sometimes with little or no warning. Be alert for rapidly
changing weather conditions and be ready to act quickly if severe
weather is observed or a warning is issued.

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.

&&

LAT...LON 3289 8211 3292 8208 3292 8195 3295 8186
      3291 8176 3304 8156 3310 8161 3316 8154
      3311 8137 3312 8120 3307 8114 3264 8160
      3269 8209 3281 8215
TIME...MOT...LOC 1916Z 265DEG 43KT 3309 8185 3278 8226