Severe Thunderstorm Warning 148, NWS Columbia, SC

327 
WWUS52 KCAE 160032
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
832 PM EDT SAT JUL 15 2017

SCC009-160045-
/O.CON.KCAE.SV.W.0148.000000T0000Z-170716T0045Z/
Bamberg SC-
832 PM EDT SAT JUL 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR SOUTH CENTRAL BAMBERG COUNTY...

At 830 PM EDT, thunderstorms extended along highway 601 south
of Bamberg. Movement was east near 20 mph. The storms may contain
wind gusts of 40 to 60 mph. 

HAZARD...40 to 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Ehrhardt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3305 8110 3305 8112 3308 8111 3312 8111
      3316 8110 3320 8110 3323 8101 3306 8101
      3303 8108
TIME...MOT...LOC 0030Z 248DEG 16KT 3322 8105 

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

Area Forecast Discussion
National Weather Service Columbia SC
511 PM EDT Sat Jul 15 2017

.SYNOPSIS...
An approaching cold front will stall over the area tonight,
bringing increasing chances for showers and thunderstorms which
may linger through Monday.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
Expect numerous showers and thunderstorms in the forecast area
ahead of the cold front and its associated pre-frontal trough.
The high-resolution models display the greatest thunderstorm
coverage late this afternoon and evening as strong short wave
trough approaches from Tennessee. Models indicate relatively
strong upper level divergence and associated lift thru 06z.
Coverage may diminish late because of nocturnal cooling and
previous convection, but a threat will linger overnight
associated with convergence ahead of the cold front and upper
troughing moving into the region. A limiting factor for severe
thunderstorms is relatively weak deep-layer shear. However,
moderate to strong instability and heavy precipitation loading
supports possible damaging wind with the thunderstorms. So pulse
storms expected with the possibility of some organization this
evening. Nam qpf appears overdone and likely because of
convective feedback. But with precipitable water around 2 inches
expect heavy rain potential with some localized flooding
possible.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/...
The main front will stall out across the forecast area Sunday,
and this will remain the focusing mechanism for additional
showers and thunderstorms through Sunday night. Several short
wave troughs rotating through amplified eastern CONUS upper
level trough. Nam appears to dry out upper levels quicker late
Sunday than other models. With front in the area prefer higher
pops thru Sunday night. Shear remains weak, with moderate
instability Sunday, and cannot rule out a few strong or even
severe thunderstorms. Temperatures will begin to cool off
slightly as the front moves into the area, with readings near
90. Overnight lows each night in the middle 70s.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
Although the frontal boundary in the area will continue to
weaken Monday, there should still be enough low-level moisture
and instability across the area to aid in the development of
scattered afternoon and evening convection. Models showing the
potential for a weak cut-off upper low developing over the area
Tuesday through Wednesday as the cwa gets squeezed between the
strong ridge across the central US and another ridge in the
western Atlantic. Ridge retrogrades late in the period. Still
expecting the convection to become more diurnal and more
scattered to isolated later in the week. Temperatures near
normal early in the period but warming trend late week to above
normal again.

&&

.AVIATION /21Z SATURDAY THROUGH THURSDAY/...
Widespread convection crossing the area into tonight...with fog
and stratus during the early morning and sunrise hours.

Thunderstorms have developed across the area with several
thunderstorms around the terminals. Frontal boundary approaching
from the Upstate with another line of thunderstorms will move
into the area this evening. Expect the thunderstorms to diminish
around 03z...possibly later as remaining outflow boundaries
intersect and generate new cells. Main concern with
thunderstorms is potential for strong wind gusts. With rain
expected will see stratus and fog develop through the early
morning and sunrise hours with with IFR cigs and vsbys at all
terminals. Conditions will return to VFR from 14z through the
end of the period with cumulus and another round of convection
again developing near the end of the period.

EXTENDED AVIATION OUTLOOK...High confidence in showers and
thunderstorms with associated restrictions through Monday as a
front stalls over the area. Low confidence in showers and
thunderstorms Tuesday through Thursday. High potential for late
night/early morning stratus and fog each day.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.

&&

Hazardous Weather Outlook
National Weather Service Columbia SC
1157 AM EDT Sat Jul 15 2017

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-161600-
Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield-
McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-
Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-
Bamberg-
1157 AM EDT Sat Jul 15 2017

This Hazardous Weather Outlook is for the Midlands of South Carolina
and the Central Savannah River area of Georgia.

.DAY ONE...This Afternoon and Tonight.

Thunderstorms this afternoon and tonight could possibly contain
damaging wind. The storms may also contain heavy rain with localized
flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A few thunderstorms with damaging wind will be possible Sunday into
Monday along a stalled front. The storms may also contain heavy rain
with localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
643 PM EDT SAT JUL 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0415 PM     LIGHTNING        BELVEDERE               33.54N 81.95W
07/15/2017                   AIKEN              SC   FIRE DEPT/RESCUE

            LIGHTNING STARTED A SHED ON FIRE WHICH
            SPREAD TO A MOBILE HOME ON CELESTE AVE IN
            BELVEDERE. SHED DESTROYED, HOME DAMAGED.
            TIME ESTIMATED FROM RADAR.

&&

MJP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
707 PM EDT SAT JUL 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0635 PM     TSTM WND DMG     5 NE WAYNESBORO         33.14N 81.96W
07/15/2017                   BURKE              GA   LAW ENFORCEMENT

            BURKE COUNTY DISPATCH REPORTED POWERLINES
            DOWN ON HWY 56 BETWEEN HWY 80 AND OLD
            WAYNESBORO RD.

&&

HC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
709 PM EDT SAT JUL 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0645 PM     TSTM WND DMG     3 E WAYNESBORO          33.10N 81.95W
07/15/2017                   BURKE              GA   LAW ENFORCEMENT

            BURKE COUNTY DISPATCH REPORTED TREES DOWN ON
            BATES RD. AT CLARK PLACE RD.

&&

HC

Special Weather Statement
National Weather Service Columbia SC
710 PM EDT SAT JUL 15 2017

GAZ077-SCZ035-152345-
Burke-Barnwell-
710 PM EDT SAT JUL 15 2017

...STRONG THUNDERSTORMS WILL AFFECT SOUTHERN BURKE COUNTY and
   AND THE SAVANNAH RIVER SITE OF SOUTHWESTERN BARNWELL COUNTIES...

At 707 PM EDT, strong thunderstorms extended through southern
Burke county and into the south part of the Savannah River Site
in Barnwell county. movement was east near 15 mph.

Wind gusts of 50 to 55 mph are possible with these storms. Very
heavy rain will occur. Ponding of water will occur in poor-
drainage areas. Do not attempt to drive on flooded roads.

Locations impacted include...
Sardis, Midville, Girard, Vidette and Colemans Lake.

LAT...LON 3283 8231 3293 8227 3304 8229 3322 8150
      3314 8148 3316 8154 3310 8162 3304 8156
      3305 8154 3304 8154 3291 8176 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 2307Z 222DEG 8KT 3305 8174

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
737 PM EDT SAT JUL 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 PM     TSTM WND DMG     10 N EDGEFIELD          33.94N 81.96W
07/15/2017                   EDGEFIELD          SC   LAW ENFORCEMENT

            EDGEFIELD COUNTY DISPATCH REPORTED TREES
            DOWN ALONG HWY 378.

&&

ACM

Special Weather Statement
National Weather Service Columbia SC
744 PM EDT SAT JUL 15 2017

SCZ035-160015-
Barnwell-
744 PM EDT SAT JUL 15 2017

...STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN BARNWELL COUNTY...

At 741 PM EDT, strong thunderstorms extended from near Barnwell
to Kline in southern Barnwell County. Movement was east
at 15 mph.

Wind gusts up to 50 mph are possible with these storms.

Very heavy rain will lead to ponding of water in poor-drainage
areas. Do not drive on flooded roads.

Locations impacted include...
Barnwell to Kline, and state roads 64 and 300 southeast of
Barnwell.

LAT...LON 3316 8139 3324 8138 3324 8123 3311 8125
      3311 8126
TIME...MOT...LOC 2341Z 278DEG 9KT 3320 8133