Severe Thunderstorm Warning 69, NWS Greenville-Spartanburg, SC

529 
WWUS52 KGSP 011923
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
323 PM EDT MON MAY 1 2017

NCC161-SCC083-011932-
/O.CAN.KGSP.SV.W.0069.000000T0000Z-170501T1945Z/
Rutherford NC-Spartanburg SC-
323 PM EDT MON MAY 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN RUTHERFORD AND
NORTHEASTERN SPARTANBURG COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of
the warned area. Therefore the warning has been cancelled.

LAT...LON 3570 8118 3529 8131 3510 8174 3556 8168
      3577 8141 3576 8138 3577 8137 3577 8135
      3578 8136 3580 8134 3580 8131
TIME...MOT...LOC 1922Z 236DEG 46KT 3557 8158 3544 8152 3514 8170 

$$

NCC023-035-045-071-109-SCC021-011945-
/O.CON.KGSP.SV.W.0069.000000T0000Z-170501T1945Z/
Catawba NC-Lincoln NC-Cleveland NC-Gaston NC-Burke NC-Cherokee SC-
323 PM EDT MON MAY 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR WESTERN CATAWBA...WESTERN LINCOLN...CLEVELAND...NORTHWESTERN
GASTON...SOUTHEASTERN BURKE AND NORTH CENTRAL CHEROKEE COUNTIES...

At 322 PM EDT, severe thunderstorms were located along a line
extending from 13 miles southeast of Morganton to 10 miles north of
Shelby to 5 miles northwest of Gaffney, moving northeast at 55 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees and power lines. 

Locations impacted include...
Hickory, Shelby, Newton, St. Stephens, Conover, Cherryville,
Longview, Boiling Springs NC, Icard and Hildebran.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

Conditions are favorable for the development of brief, weak
tornadoes. Seek shelter inside an interior room.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3570 8118 3529 8131 3510 8174 3556 8168
      3577 8141 3576 8138 3577 8137 3577 8135
      3578 8136 3580 8134 3580 8131
TIME...MOT...LOC 1922Z 236DEG 46KT 3557 8158 3544 8152 3514 8170 

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

LANE

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
234 PM EDT Mon May 1 2017

.SYNOPSIS...
A cold front will cross the Western Carolinas and northeast Georgia
from the west today, bringing the potential for strong to severe
thunderstorms to the region. Dry high pressure will settle over the
southeast Tuesday into Wednesday. A low pressure system will move
from the plains to the Ohio Valley Wednesday night through Thursday,
with a band of deep moisture moving into our region ahead of the
associated cold front. The cold front will move east of the area on
Friday, with windy and cooler conditions and continued northwest
flow moisture across the mountains into the weekend.

&&

.NEAR TERM /THROUGH TUESDAY/...
As of 220 PM EDT: Strong to potentially severe line of convection
continues to cross the area at this time. A damaging wind gust could
occur with any storm as it moves through the area. Although any
thunderstorm related damaging winds will be isolated, a strong
gradient wind has developed with the strong low level jet crossing
the area. Cannot rule out a few downed trees or power lines with
these non-thunderstorm winds as well. These winds should diminish
from west to east as the jet crosses the area, but gusty winds will
linger through the afternoon. Winds will pick back up across the
mountains as the associated cold front moves east of the area. The
winds will be stronger and longer lasting, so a wind advisory has
been issued for the NC Mountains as a result.

Skies clear behind the front this evening with clear skies
continuing through the day Tuesday. That said, some clouds will move
back into the mountains from time to time tonight and Tuesday.
Still, expect mostly clear skies even there. Winds taper off across
the mountains during the afternoon but remain gusty. Low end gusts
develop outside of the mountains during the afternoon as well. Lows
tonight will be near to a little above normal. Highs Tuesday will
rise to right around normal.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/...
As of 3pm EDT Monday:  On Wednesday, area will continue to be in a
postfrontal regime with low-level flow from the west that will keep
things dry.  Next upstream system digs into the TX/LA area Wednesday
evening and surface trough ahead of it will begin the process of
moisture return with 850mb winds becoming southerly.  Main dynamical
impact of this system will be Thursday afternoon through Friday
morning with a round of precipitation.  Storm total amounts for
Thurs. through Fri. morning are currently around an inch to an inch
and a quarter.  MLCAPE and SBCAPE with this system may remain below 400
j/kg, greatly reducing the chances for any severe weather with the
system, though wind shear will be strong, so severe is not
out-of-the-question.  Ridge of surface high pressure along the
Appalachians ahead of next system  will give some CAD northeasterly
surface flow that will serve to keep the better instability south
and southwest of the area.  Temperatures will be near normal on
Wed., and have warm low Thurs. morning due to warm/moist advection.
Thurs. highs will be moderated by cloud cover.

&&

.LONG TERM /FRIDAY THROUGH SUNDAY/...
As of 3pm EDT Monday:  By Friday morning, the EC model is somewhat
behind the GFS in dragging the front/line of precip. through the
area as upper longwave makes its way towards the Atlantic.  However,
both models have an area of lighter precipitation in the wrap-around
behind the system which will continue lighter showers, especially in
areas upslope to westerly flow into Saturday morning.  Both models
also have a secondary back-door front with some showers moving down
Sunday morning.  Long-term may have above average predictability as
GFS and EC both agree on the establishment of a blocky Omega type
pattern with the upper trough parking itself over the northeast
CONUS.  With this pattern, embedded waves will give some 10 to 20
percent chance for showers each day Saturday through Tuesday (mostly
over the higher terrain), but no big event is currently in the
forecast, and moisture/CAPE will be limited due to lack of southerly
flow under generally weak low-level pressure gradient.
Low-dewpoints will give cool lows 5 or so degrees below normal with
highs near normal in periods without clouds, and below normal in
periods with clouds.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
At KCLT and Elsewhere: Very gusty S to SW winds have developed ahead
of the approaching cold front. Convection has increased as well. Have
increased winds and included very gusty variable winds with the
TEMPO for TSRA. Expect gusts to linger behind the convection along
with low VFR and some showers. Winds turn SW or WSW and drop off
this evening with clearing skies. KAVL will see winds turn NNW this
evening and remain gusty through the period.

Outlook: Drier weather will persist Tuesday. A return of
afternoon/evening thunderstorms is possible Wednesday, while another
cold front may bring another round of widespread showers and storms
by Thursday into Friday.

Confidence Table...

            18-24Z        00-06Z        06-12Z        12-18Z
KCLT       Med   73%     High  98%     High 100%     High 100%
KGSP       High  84%     High  99%     High 100%     High 100%
KAVL       High  93%     High 100%     High 100%     High 100%
KHKY       Med   78%     High 100%     High 100%     High 100%
KGMU       High  82%     High 100%     High 100%     High 100%
KAND       High  93%     High 100%     High 100%     High 100%

The percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables and ensemble forecasts
are available at the following link:

www.weather.gov/gsp/aviation

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

SYNOPSIS...HG
NEAR TERM...RWH
SHORT TERM...WJM
LONG TERM...WJM
AVIATION...RWH

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
301 PM EDT Mon May 1 2017

GAZ010-017-018-026-028-029-SCZ001>006-010-021915-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Greater Greenville-Anderson-
301 PM EDT Mon May 1 2017

This Hazardous Weather Outlook is for northeast Georgia and upstate
South Carolina.

.DAY ONE...This Afternoon and Tonight.

Passage of front has ended the chances for severe weather this
afternoon.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ033-048>053-058-059-062>065-501-503-505-507-509-021915-
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Caldwell Mountains-Burke Mountains-McDowell Mountains-
Rutherford Mountains-Polk Mountains-
301 PM EDT Mon May 1 2017

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON EDT
TUESDAY...

This Hazardous Weather Outlook is for western North Carolina.

.DAY ONE...This Afternoon and Tonight.

Passage of front has ended the chances for severe weather this
afternoon. Behind the front, winds at higher elevations will be
strong and a wind advisory has been issued for tonight through
Tuesday morning for gusts up to 50mph.

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

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035>037-056-057-068>072-082-502-504-506-508-510-SCZ007>009-
011>014-019-021915-
Alexander-Iredell-Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union-Greater Caldwell-Greater Burke-
Eastern McDowell-Greater Rutherford-Eastern Polk-Spartanburg-
Cherokee-York-Abbeville-Laurens-Chester-Greenwood-
301 PM EDT Mon May 1 2017

This Hazardous Weather Outlook is for piedmont North Carolina,
western North Carolina and upstate South Carolina.

.DAY ONE...This Afternoon and Tonight.
A line of thunderstorms is currently moving west to east across the
area. There will be some chance for severe wind gusts as the line
passes, along with periods of lightning and torrential rain. Line
will pass quickly and any chance for severe weather will end as it
passes. Line is expected to be completely east of the area by 8pm.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1259 PM EDT MON MAY 1 2017

GAZ018-026-028-SCZ004-005-010-011730-
Hart GA-Franklin GA-Stephens GA-Greater Pickens SC-Greater Oconee SC-
Anderson SC-
1259 PM EDT MON MAY 1 2017

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN FRANKLIN...
SOUTHEASTERN STEPHENS...NORTHWESTERN HART...NORTHWESTERN ANDERSON...
SOUTHWESTERN PICKENS AND SOUTHEASTERN OCONEE COUNTIES UNTIL 130 PM
EDT...

At 1258 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Carnesville, or over Gumlog, moving northeast at
55 mph.

Locations to be impacted include...
Clemson, Seneca, Central, Pendleton, Lavonia, Gumlog, Martin, Avalon,
Tugaloo State Park and Six Mile.

Wind gusts up to 50 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

Lake Hartwell is in the path of this storm. Cloud to ground
lightning and gusty winds will create dangerous boating conditions.
Move to shore immediately.

&&

LAT...LON 3450 8321 3482 8280 3462 8264 3439 8311
TIME...MOT...LOC 1658Z 227DEG 49KT 3448 8309

LANE

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
112 PM EDT MON MAY 1 2017

NCZ064-SCZ001>005-011745-
Transylvania NC-Greater Pickens SC-Pickens Mountains SC-
Greater Oconee SC-Oconee Mountains SC-Greenville Mountains SC-
112 PM EDT MON MAY 1 2017

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN TRANSYLVANIA...
NORTHWESTERN GREENVILLE...NORTHWESTERN PICKENS AND NORTHEASTERN
OCONEE COUNTIES UNTIL 145 PM EDT...

At 112 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 5 miles southwest of Brevard to 13 miles
northwest of Pickens to 4 miles northeast of Seneca, and moving
northeast at 45 mph.

Locations to be impacted include...
Seneca, Pickens, Brevard, Six Mile, Rosman, Salem, Lake Keowee,
Jocassee Gorges, Lake Jocassee and Dupont State Forest.

Wind gusts up to 50 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds can blow down trees that are dead, or that have weakened
root systems. Outdoor furniture and similar items can be tossed
around if not anchored. Seek shelter indoors.

Lakes Jocassee and Keowee are in the path of these storms. Cloud to
ground lightning and gusty winds will create dangerous boating
conditions. Move to shore immediately.

&&

LAT...LON 3493 8305 3517 8282 3531 8262 3529 8262
      3529 8261 3526 8262 3526 8260 3512 8260
      3485 8268 3465 8300
TIME...MOT...LOC 1712Z 225DEG 36KT 3518 8280 3498 8291 3474 8291

LANE

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
145 PM EDT MON MAY 1 2017

NCZ065-509-510-SCZ002-003-005-006-011815-
Henderson NC-Polk Mountains NC-Eastern Polk NC-Greater Pickens SC-
Pickens Mountains SC-Greenville Mountains SC-Greater Greenville SC-
145 PM EDT MON MAY 1 2017

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN HENDERSON...
SOUTHWESTERN POLK...NORTHEASTERN GREENVILLE AND NORTHEASTERN PICKENS
COUNTIES UNTIL 215 PM EDT...

At 144 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 13 miles northeast of Pickens to 7 miles south of
Easley, and moving northeast at 50 mph.

Locations to be impacted include...
Greenville, Easley, Columbus, Taylors, Berea, Welcome, Travelers
Rest, Slater-Marietta and Tryon.

Wind gusts up to 45 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3512 8261 3535 8218 3520 8220 3519 8222
      3509 8222 3491 8224 3481 8247 3482 8249
      3474 8266
TIME...MOT...LOC 1744Z 227DEG 43KT 3505 8258 3472 8263

LANE

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
209 PM EDT MON MAY 1 2017

SCZ006-010-011830-
Anderson SC-Greater Greenville SC-
209 PM EDT MON MAY 1 2017

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN GREENVILLE AND
NORTHEASTERN ANDERSON COUNTIES UNTIL 230 PM EDT...

At 208 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Greenville Downtown to 11 miles northeast of
Anderson, and moving northeast at 40 mph.

Locations to be impacted include...
Mauldin, Simpsonville, Welcome, Powdersville, Piedmont, Williamston
and West Pelzer.

Wind gusts up to 45 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3482 8249 3492 8222 3485 8223 3484 8221
      3463 8226 3454 8255
TIME...MOT...LOC 1808Z 245DEG 34KT 3485 8242 3462 8249

LANE

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
223 PM EDT MON MAY 1 2017

NCZ508-510-SCZ003-006>008-012-011915-
Greater Rutherford NC-Eastern Polk NC-Cherokee SC-Laurens SC-
Greenville Mountains SC-Spartanburg SC-Greater Greenville SC-
223 PM EDT MON MAY 1 2017

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN RUTHERFORD...
SOUTHEASTERN POLK...NORTHWESTERN LAURENS...NORTHEASTERN GREENVILLE...
SPARTANBURG AND NORTHWESTERN CHEROKEE COUNTIES UNTIL 315 PM EDT...

At 223 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 5 miles south of Columbus to 12 miles south of
Greenville Downtown, and moving northeast at 40 mph.

Locations to be impacted include...
Spartanburg, Greenville Eastside, Greer, Mauldin, Taylors,
Simpsonville, Five Forks, Fountain Inn, Boiling Springs SC and
Woodruff.

Wind gusts up to 45 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3465 8240 3517 8228 3523 8197 3525 8175
      3473 8188
TIME...MOT...LOC 1823Z 239DEG 35KT 3516 8219 3468 8234

LANE

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
253 PM EDT MON MAY 1 2017

NCZ068-508-011930-
Greater Rutherford NC-Cleveland NC-
253 PM EDT MON MAY 1 2017

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN RUTHERFORD AND
WESTERN CLEVELAND COUNTIES UNTIL 330 PM EDT...

At 253 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 7 miles south of Rutherfordton to 10 miles
northwest of Spartanburg, and moving northeast at 50 mph.

Locations to be impacted include...
Forest City, Shelby, Boiling Springs NC, Belwood, Lawndale,
Polkville, Ellenboro, Lattimore, Mooresboro and Bostic.

Wind gusts up to 50 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3555 8151 3552 8151 3550 8149 3525 8157
      3520 8192 3543 8185 3556 8152
TIME...MOT...LOC 1853Z 234DEG 43KT 3527 8200 3504 8209

LANE