Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 34, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 10, 2018, 5:19 PM EDT for Cherokee County, Spartanburg County, South Carolina; Cleveland County, Rutherford County, North Carolina. It was in force for 41 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 10, 2018, 5:19 PM EDT (21:19 UTC)
- Expired
- May 10, 2018, 6:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cleveland County, NC, Rutherford County, NC, Cherokee County, SC, Spartanburg County, SC
The radar
The Greer radar (KGSP), 52 km from the middle of the area, began a volume at 21:20 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 5:21 PM EDT | TSTM WND DMG | 2 Se Forest City, NC | NUMEROUS TREES DOWN SOME BLOCKING ROADS FROM NEAR FOREST CITY TO ELLENBORO. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 2 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 10, 4:23 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.3 hours before the alert went out and 198 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1686 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
391
WUUS52 KGSP 102119
SVRGSP
NCC045-161-SCC021-083-102200-
/O.NEW.KGSP.SV.W.0034.180510T2119Z-180510T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
519 PM EDT THU MAY 10 2018
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Southeastern Rutherford County in western North Carolina...
Southern Cleveland County in the Piedmont of North Carolina...
Northeastern Spartanburg County in Upstate South Carolina...
Northwestern Cherokee County in Upstate South Carolina...
* Until 600 PM EDT.
* At 519 PM EDT, a severe thunderstorm was located 6 miles southeast
of Forest City, or 4 miles southwest of Ellenboro, moving southeast
at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is expected. Expect wind
damage to trees and power lines.
* Locations impacted include...
Shelby, Gaffney, Forest City, Boiling Springs NC, Cowpens, Mayo,
Chesnee, Patterson Springs, Ellenboro and Lattimore.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Scattered trees and power lines will be blown down in the warned
area. 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 3524 8135 3496 8182 3519 8200 3519 8197
3522 8197 3522 8196 3523 8197 3525 8196
3541 8180
TIME...MOT...LOC 2119Z 297DEG 17KT 3527 8180
HAIL...1.00IN
WIND...60MPH
$$
Carroll2 follow-up statements
054
WWUS52 KGSP 102144
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
544 PM EDT THU MAY 10 2018
NCC045-161-SCC021-083-102200-
/O.CON.KGSP.SV.W.0034.000000T0000Z-180510T2200Z/
Rutherford NC-Cleveland NC-Spartanburg SC-Cherokee SC-
544 PM EDT THU MAY 10 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTHEASTERN RUTHERFORD...SOUTHERN CLEVELAND...NORTHEASTERN
SPARTANBURG AND NORTHWESTERN CHEROKEE COUNTIES...
At 544 PM EDT, a severe thunderstorm was located 8 miles southwest of
Shelby, or near Boiling Springs NC, moving southeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is expected. Expect wind
damage to trees and power lines.
Locations impacted include...
Shelby, Gaffney, Boiling Springs NC, Cowpens, Mayo, Chesnee,
Patterson Springs, Ellenboro, Lattimore and Mooresboro.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
LAT...LON 3524 8135 3496 8182 3519 8200 3519 8197
3522 8197 3522 8196 3523 8197 3537 8169
TIME...MOT...LOC 2144Z 297DEG 17KT 3522 8167
HAIL...1.00IN
WIND...60MPH
$$
Carroll977
WWUS52 KGSP 102157
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
557 PM EDT THU MAY 10 2018
NCC045-161-SCC021-083-102207-
/O.EXP.KGSP.SV.W.0034.000000T0000Z-180510T2200Z/
Rutherford NC-Cleveland NC-Spartanburg SC-Cherokee SC-
557 PM EDT THU MAY 10 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RUTHERFORD...
SOUTHERN CLEVELAND...NORTHEASTERN SPARTANBURG AND NORTHWESTERN
CHEROKEE COUNTIES WILL EXPIRE AT 600 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire. However gusty winds
AND heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
western and the Piedmont of North Carolina...and Upstate South
Carolina.
LAT...LON 3524 8135 3496 8182 3519 8200 3519 8197
3522 8197 3522 8196 3523 8197 3537 8169
TIME...MOT...LOC 2157Z 297DEG 17KT 3519 8161
$$
CarrollWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at May 10, 5:17 PM EDT, 2 minutes earlier.
Area forecast discussion, May 10, 5:17 PM EDT, 2 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
517 PM EDT Thu May 10 2018
.SYNOPSIS...
Showers and thunderstorms continue through this evening as a cold
front crosses the area. Mainly mountain afternoon and evening
thunderstorms are expected Friday and Saturday. Temperatures will
increase to near record levels by Sunday then slowly cool through
next week. Precipitation chances gradually increase through next
week as a complex low pressure system impacts the area.
&&
.NEAR TERM /THROUGH FRIDAY/...
As of 505 PM EDT: over the past couple of hours, we've been watching
a line of fairly strong convection move eastward from the higher
terrain. The strongest cells have developed over the NC Foothills
and have produced large hail and gusty winds. The the latest runs of
the CAMS have slowed the progression of this line down by a couple
of hours or so compared to earlier runs. Otherwise, the main
convection should exit east of the area by 01Z or so. Isolated
showers may continue to arrive in the northwest flow across the
southwest mountains through midnight before dissipating. Locations
receiving heavy rain this afternoon/evening, as well as the mountain
river valleys, could well see fog and low clouds toward daybreak
Friday. Mild mins should run 5 to 10 degrees above climatology.
Flat mid-upper ridging will develop over the southeast on Friday,
but a very weak H5 trough embedded in the ridge could provide weak
afternoon forcing over the NC mountains. A weak lee trough should
develop just east of the Blue Ridge as well to toggle winds back
toward southwesterly. Anticipate max temps warming at least a couple
of degrees above Thursday values, with isolated to scattered diurnal
convection focused mainly along the eastern slopes of the
mountains.
&&
.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
As of 215 PM EDT Thursday: Weak upper shortwave will be passing
across the area, embedded in the flow atop the Gulf/Caribbean upper
ridge, at the beginning of the period. Any lingering convection from
Friday night should dissipate quickly on the back side of the wave.
For Saturday afternoon, continued mid-level warming with the upper
ridge in place and a weak surface trough in place should continue
the low-level WAA, resulting in afternoon highs a couple of degrees
warmer than what we'll see on Friday, with just about everywhere
across the Piedmont progged to reach the 90-degree mark. Without
upper support, convection will be limited to just the airmass
instability and mechanical lift from the mountains, so have dropped
most of the pops from the Piedmont. Thicknesses will increase
further still on Sunday as a broad upper trough remains in place
over E Canada and ridging amplifies over the center of the country.
The big story here will be the record-level highs; currently have a
record forecast for CLT, which will break a record that has been in
place for 137 years! Luckily dewpoints won't be ridiculous, so, so
far, no real concerns with heat indices. Very little change in low
temps through the period (actually, through the extended,
too...maybe fluctuating by 5 degrees through the end of next week).
Mid-level warming/subsidence will continue to increase, and this
will significantly limit convective potential even over the
mountains, with only some pockets of slight chance pops forecast at
this time.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As of 230 PM EDT Thursday: Still no major changes to the extended
from previous forecasts. With the subtropical ridge continuing in
place, Monday should be very similar to Sunday, maybe a degree or
two cooler, and with slightly more convection especially over the
mountains, but cannot rule out isolated activity over the Piedmont
as well.
Things start changing as we move into Tuesday and through the rest
of the period. A tropical weakness in the Gulf will strengthen just
slightly on Sunday, spinning near the FL Big Bend on Monday and
beginning to drift north into the Southeast Monday night and
Tuesday. Increasing cloud cover and precip chances will be expected,
and a corresponding decrease in afternoon highs (still above normal
though). From Tuesday through the end of the period, it looks fairly
wet...though QPF amounts aren't particularly impressive, low-level
moisture will remain high and thus higher pops are warranted, with
the best chances Wednesday afternoon where we have likely pops
painted across the area. Airmass instability will remain but lapse
rates in the tropical environment unimpressive, so some question as
to how much showery vs. thundery activity there will be. A shortwave
trough pushing toward the OH Valley at the end of the period will
slowly absorb the tropical low, but the tropical moisture feed from
the western Caribbean will continue so chance pops remain in the
forecast, with highs remaining 3-5 degrees above normal.
&&
.AVIATION /21Z THURSDAY THROUGH TUESDAY/...
At KCLT and Elsewhere: There is reasonably good consensus on the
foothills convection developing into a broken line across the NC
piedmont late this afternoon and impacting KCLT mainly from 21Z to
23Z. Reasonably good cold pool winds of 25 to 30 kt should be
expected from the WNW, and gusts could reach quite a bit higher if
the convective strength builds into the stronger piedmont DCAPE
area. Convection should be a bit spottier elsewhere, with KHKY to
KAVL seeing the next best chance, but more scattered activity across
the Upstate terminal area. Will handle with mainly a VCTS in
southern sections. Any restrictions through the evening hours will
be brief MVFR to possibly IFR under the heaviest downpours.
Any locations that receive rain late today will be a candidate for
fog/stratus development toward daybreak Friday. Chances appear best
at KCLT and also in the mountain river valleys. Will remain fairly
conservative for now given the reserved MOS forecasts, but will
definitely hint that way at KCLT with some morning SCT007 along with
MVFR fog. Convective coverage should be quite a bit less on Friday,
with no mention before 18Z throughout, and nothing after 18Z at
KCLT. Winds will toggle back to SW with lee troughing early Friday,
except mainly NW at KAVL.
Outlook: Isolated to scattered diurnal convection will likely return
mainly over the higher terrain on Friday afternoon and into the
weekend. Any restrictions should be confined to areas under
showers/thunderstorms or daybreak fog/stratus in the lower mountain
valleys.
Confidence Table...
21-03z 03-09Z 09-15Z 15-18Z
KCLT High 100% High 100% Low 47% High 100%
KGSP High 100% High 100% High 100% High 100%
KAVL High 100% High 100% Low 47% High 100%
KHKY High 100% High 100% High 100% High 100%
KGMU High 100% High 100% High 100% High 100%
KAND High 100% 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
&&
.CLIMATE...
RECORDS FOR 05-10
MAX TEMPERATURE MIN TEMPERATURE
STATION HIGH LOW HIGH LOW
------- ---------- ---------- ---------- ----------
KAVL 89 1936 53 1924 65 1927 32 1966
1896 1906
KCLT 94 1896 59 1966 70 1927 38 1906
1889
KGSP 96 1889 56 1924 71 1895 32 1906
RECORDS FOR 05-11
MAX TEMPERATURE MIN TEMPERATURE
STATION HIGH LOW HIGH LOW
------- ---------- ---------- ---------- ----------
KAVL 89 1889 50 1960 64 1890 30 1966
KCLT 95 1916 58 1924 70 1889 39 1977
1896
1889
KGSP 96 1889 59 1924 69 1963 33 1906
RECORDS FOR 05-12
MAX TEMPERATURE MIN TEMPERATURE
STATION HIGH LOW HIGH LOW
------- ---------- ---------- ---------- ----------
KAVL 88 1980 44 1960 65 1918 36 1969
1956
1914
KCLT 94 1889 56 1960 69 1896 39 1969
KGSP 99 1916 56 1960 68 1979 38 1989
1933
RECORDS FOR 05-13
MAX TEMPERATURE MIN TEMPERATURE
STATION HIGH LOW HIGH LOW
------- ---------- ---------- ---------- ----------
KAVL 90 1933 54 1917 67 1890 31 1895
KCLT 93 1881 59 1891 73 1881 38 1960
KGSP 95 1886 62 1972 71 1933 37 1917
1954
1938
RECORDS FOR 05-14
MAX TEMPERATURE MIN TEMPERATURE
STATION HIGH LOW HIGH LOW
------- ---------- ---------- ---------- ----------
KAVL 89 1956 52 1954 63 1962 30 1895
1896 1908
KCLT 95 1956 53 1954 73 1881 41 2013
1917
KGSP 95 1886 52 1954 71 1933 41 2013
1960
1917
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.
&&
SYNOPSIS...RWH
NEAR TERM...JPT
SHORT TERM...TDP
LONG TERM...TDP
AVIATION...HG/JPT
CLIMATE...TDPHazardous weather outlook, May 10, 4:31 PM EDT, 48 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 431 PM EDT Thu May 10 2018 GAZ010-017-018-NCZ033-048>053-058-059-062>065-501>506-SCZ001>006- 112045- Rabun-Habersham-Stephens-Avery-Madison-Yancey-Mitchell-Swain-Haywood- Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania- Henderson-Caldwell Mountains-Greater Caldwell-Burke Mountains- Greater Burke-McDowell Mountains-Eastern McDowell-Oconee Mountains- Pickens Mountains-Greenville Mountains-Greater Oconee- Greater Pickens-Greater Greenville- 431 PM EDT Thu May 10 2018 This Hazardous Weather Outlook is for northeast Georgia, western North Carolina and upstate South Carolina. .DAY ONE...Tonight. Scattered to numerous thunderstorms are developing ahead of a cold front approaching from the west this afternoon. Some of the thunderstorms could become severe over the foothills and especially the piedmont through early this evening. Cloud-to-ground lighting, briefly heavy rainfall, and gusty winds can be expected with any of these storms. Some of the strongest thunderstorms will be capable of producing quarter-sized hail and damaging wind gusts. The storms should move away to the east by around sunset. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. ..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. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Skywarn spotters are requested to forward any reports of large hail, damaging winds, tornadoes, or flash flooding to our office. NCZ035>037-056-057-068>072-082-507>510-SCZ007>009-013-014-112045- Alexander-Iredell-Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston- Mecklenburg-Cabarrus-Union-Rutherford Mountains-Greater Rutherford- Polk Mountains-Eastern Polk-Spartanburg-Cherokee-York-Chester- 431 PM EDT Thu May 10 2018 ...SEVERE THUNDERSTORM WATCH 80 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for piedmont North Carolina, western North Carolina and upstate South Carolina. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. ..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. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Skywarn spotters are requested to forward any reports of large hail, damaging winds, tornadoes, or flash flooding to our office. GAZ026-028-029-SCZ010>012-019-112045- Franklin-Hart-Elbert-Anderson-Abbeville-Laurens-Greenwood- 431 PM EDT Thu May 10 2018 This Hazardous Weather Outlook is for northeast Georgia and upstate South Carolina. .DAY ONE...Tonight. Scattered thunderstorms are developing ahead of a cold front approaching from the west. Cloud-to-ground lighting, briefly heavy rainfall, and gusty winds can be expected with any of these storms. One or two of the thunderstorms may become strong enough to produce large hail and damaging wind gusts. The storms should move away to the east by around sunset. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. ..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. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Skywarn spotters are requested to forward any reports of large hail, damaging winds, tornadoes, or flash flooding to our office.
In the hours before
Special weather statement, May 10, 4:54 PM EDT, 25 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
454 PM EDT THU MAY 10 2018
NCZ035-036-056-069-502-504-508-102130-
Greater Rutherford NC-Iredell NC-Lincoln NC-Greater Burke NC-
Greater Caldwell NC-Alexander NC-Catawba NC-
454 PM EDT THU MAY 10 2018
...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT
CATAWBA...NORTHEASTERN RUTHERFORD...SOUTHWESTERN ALEXANDER...
NORTHWESTERN LINCOLN...WEST CENTRAL IREDELL...SOUTHEASTERN CALDWELL
AND SOUTHEASTERN BURKE COUNTIES UNTIL 530 PM EDT...
At 454 PM EDT, Doppler radar was tracking a strong thunderstorm with
intense lightning 7 miles north of Newton, or 4 miles east of St.
Stephens, moving east at 30 mph.
Locations to be impacted include...
Hickory, Newton, St. Stephens, Conover, Longview, Granite Falls,
Valdese, Bethlehem, Icard and Hildebran.
In addition to intense lightning, wind gusts up to 50 mph and dime
size hail will be possible in these areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent lightning is occurring with this storm. If outdoors, try to
get indoors or into a hard topped vehicle. Otherwise, stay away from
open areas and isolated high objects such as trees. When indoors,
stay away from windows and doors and avoid using wired electronic
devices. Do not take a shower or bath. Try to unplug unnecessary
appliances before the storm approaches.
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.
&&
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
western and the Piedmont of North Carolina.
LAT...LON 3574 8089 3555 8130 3555 8151 3557 8154
3556 8157 3557 8160 3556 8166 3558 8169
3555 8169 3555 8182 3564 8184 3589 8129
TIME...MOT...LOC 2054Z 286DEG 27KT 3577 8120
CarrollSpecial weather statement, May 10, 4:59 PM EDT, 20 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
459 PM EDT THU MAY 10 2018
NCZ064-SCZ002-003-005-102130-
Transylvania NC-Pickens Mountains SC-Greater Pickens SC-
Greenville Mountains SC-
459 PM EDT THU MAY 10 2018
...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT
SOUTHEASTERN TRANSYLVANIA...NORTHWESTERN GREENVILLE AND NORTHWESTERN
PICKENS COUNTIES UNTIL 530 PM EDT...
At 459 PM EDT, Doppler radar was tracking a strong thunderstorm with
intense lightning 12 miles northwest of Pickens, or 4 miles north of
Jocassee Gorges, moving east at 20 mph.
Locations to be impacted include...
Pickens, Jocassee Gorges, Table Rock State Park, Keowee Toxaway State
Park, Caesars Head State Park, Lake Jocassee, Jones Gap State Park,
Gorges State Park, Lake Keowee and Pumpkintown.
In addition to intense lightning, wind gusts up to 45 mph and dime
size hail will be possible in these areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent lightning is occurring with this storm. If outdoors, try to
get indoors or into a hard topped vehicle. Otherwise, stay away from
open areas and isolated high objects such as trees. When indoors,
stay away from windows and doors and avoid using wired electronic
devices. Do not take a shower or bath. Try to unplug unnecessary
appliances before the storm approaches.
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.
&&
LAT...LON 3501 8293 3501 8291 3503 8292 3505 8290
3505 8292 3511 8292 3513 8259 3487 8261
3493 8291 3494 8290 3495 8291 3496 8291
3498 8293
TIME...MOT...LOC 2059Z 272DEG 18KT 3502 8284
CarrollSpecial weather statement, May 10, 5:07 PM EDT, 12 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
507 PM EDT THU MAY 10 2018
NCZ509-510-SCZ003-006-007-102130-
Polk Mountains NC-Eastern Polk NC-Greenville Mountains SC-
Spartanburg SC-Greater Greenville SC-
507 PM EDT THU MAY 10 2018
...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT
SOUTHWESTERN POLK...NORTHEASTERN GREENVILLE AND NORTHWESTERN
SPARTANBURG COUNTIES UNTIL 530 PM EDT...
At 507 PM EDT, Doppler radar was tracking a strong thunderstorm with
intense lightning 7 miles south of Columbus, or near Campobello,
moving southeast at 30 mph.
Locations to be impacted include...
Landrum, Inman, Tryon, Campobello, Saluda, Lake Bowen, Gowensville
and Glassy Mountain.
In addition to intense lightning, wind gusts up to 50 mph and dime
size hail 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.
Frequent lightning is occurring with this storm. If outdoors, try to
get indoors or into a hard topped vehicle. Otherwise, stay away from
open areas and isolated high objects such as trees. When indoors,
stay away from windows and doors and avoid using wired electronic
devices. Do not take a shower or bath. Try to unplug unnecessary
appliances before the storm approaches.
&&
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
western North Carolina...and Upstate South Carolina.
LAT...LON 3503 8230 3524 8236 3525 8235 3522 8213
3502 8199 3500 8221 3498 8228
TIME...MOT...LOC 2107Z 323DEG 27KT 3514 8218
CarrollLocal storm report, May 10, 5:08 PM EDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
508 PM EDT THU MAY 10 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0507 PM HAIL TRYON 35.21N 82.24W
05/10/2018 E0.25 INCH POLK NC 911 CALL CENTER
&&
TPALMERLocal storm report, May 10, 5:10 PM EDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
510 PM EDT THU MAY 10 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0450 PM HAIL TAYLORSVILLE 35.92N 81.18W
05/10/2018 E1.00 INCH ALEXANDER NC BROADCAST MEDIA
MOSTLY NICKEL HAIL BUT SOME BIGGER.
&&
TPALMERSpecial weather statement, May 10, 5:19 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
519 PM EDT THU MAY 10 2018
NCZ509-510-102245-
Polk Mountains NC-Eastern Polk NC-
519 PM EDT THU MAY 10 2018
...AN AREA OF HEAVY RAIN WILL IMPACT POLK COUNTY UNTIL 645 PM EDT...
At 517 PM EDT, Emergency management reported that the heavy rain
that has fallen across Polk County has resulted in very high flows
in area creeks and rivers.
Locations to be impacted include...
Columbus, Tryon, Mill Spring, Green Creek and Lake Adger.
Extreme rainfall rates in excess of 3 inches per hour have been
observed in these areas. Ponding of water on roads and low-lying
areas will continue. Creeks may briefly come out of their banks. The
heavy rain is moving out of the county but expect continued rises
until the water is routed downstream.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.
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.
&&
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
western North Carolina.
LAT...LON 3534 8208 3530 8203 3528 8200 3527 8200
3525 8197 3519 8197 3519 8205 3520 8228
3527 8229 3540 8213 3539 8213
TIME...MOT...LOC 2117Z 303DEG 14KT 3528 8202 3519 8218
TDPThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 1:37 PM EDT | Special Weather Statement | GSP | Oconee | 23 min |
| May 10, 3:13 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 47 min |
| May 10, 3:46 PM EDT | Special Weather Statement | GSP | Oconee | 29 min |
| May 10, 3:58 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 47 min |
| May 10, 4:36 PM EDT | Special Weather Statement | GSP | Oconee | 39 min |
| May 10, 4:59 PM EDT | Special Weather Statement | GSP | Pickens | 31 min |
| May 10, 5:12 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 48 min |
| May 10, 5:24 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Pickens | 40 min |
| May 10, 5:34 PM EDT | Special Weather Statement | GSP | Oconee, Pickens | 41 min |
| May 10, 6:02 PM EDT | Special Weather Statement | GSP | Cherokee, Spartanburg | 43 min |
| May 10, 6:14 PM EDT | Special Weather Statement | GSP | Anderson | 46 min |
| May 10, 6:36 PM EDT | Special Weather Statement | GSP | Cherokee, Union, York | 39 min |
| May 10, 7:01 PM EDT | Severe Thunderstorm Warning | GSP | Laurens, Spartanburg, Union | 44 min |
| May 10, 7:18 PM EDT | Special Weather Statement | GSP | Laurens | 27 min |
| May 10, 1:33 PM EDT | Special Weather Statement | GSP | Burke | 27 min |
| May 10, 1:58 PM EDT | Special Weather Statement | GSP | Burke | 32 min |
| May 10, 2:09 PM EDT | Special Weather Statement | GSP | Avery, Mitchell | 36 min |
| May 10, 2:15 PM EDT | Severe Thunderstorm Warning | GSP | Polk, Rutherford | 45 min |
| May 10, 2:27 PM EDT | Special Weather Statement | GSP | Burke | 33 min |
| May 10, 2:42 PM EDT | Special Weather Statement | GSP | Henderson | 33 min |
| May 10, 2:52 PM EDT | Severe Thunderstorm Warning | GSP | Polk | 23 min |
| May 10, 2:56 PM EDT | Special Weather Statement | GSP | Avery, Mitchell | 34 min |
| May 10, 3:00 PM EDT | Special Weather Statement | GSP | Graham | 30 min |
| May 10, 3:04 PM EDT | Special Weather Statement | GSP | Burke | 26 min |
| May 10, 3:28 PM EDT | Special Weather Statement | GSP | Burke | 47 min |
| May 10, 3:33 PM EDT | Special Weather Statement | GSP | Graham, Swain | 42 min |
| May 10, 3:35 PM EDT | Special Weather Statement | GSP | Polk | 25 min |
| May 10, 3:50 PM EDT | Special Weather Statement | GSP | Haywood | 25 min |
| May 10, 3:55 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Catawba, Lincoln | 50 min |
| May 10, 4:07 PM EDT | Special Weather Statement | GSP | Jackson | 38 min |
| May 10, 4:12 PM EDT | Special Weather Statement | GSP | Burke | 33 min |
| May 10, 4:18 PM EDT | Special Weather Statement | GSP | Alexander, Iredell | 42 min |
| May 10, 4:31 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Iredell | 44 min |
| May 10, 4:46 PM EDT | Severe Thunderstorm Warning | GSP | Henderson, Polk, Rutherford | 44 min |
| May 10, 4:54 PM EDT | Special Weather Statement | GSP | Catawba | 36 min |
| May 10, 5:07 PM EDT | Special Weather Statement | GSP | Polk | 23 min |
| May 10, 5:15 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Iredell, Rowan | 45 min |
| May 10, 5:19 PM EDT | Special Weather Statement | GSP | Polk | 86 min |
| May 10, 5:39 PM EDT | Special Weather Statement | GSP | Cabarrus | 51 min |
| May 10, 6:00 PM EDT | Special Weather Statement | GSP | Davie, Rowan | 30 min |
| May 10, 7:20 PM EDT | Special Weather Statement | GSP | Union | 25 min |
| May 10, 7:42 PM EDT | Special Weather Statement | GSP | Union | 33 min |
| May 10, 7:49 PM EDT | Severe Thunderstorm Warning | GSP | Union | 26 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2018Severe Thunderstorm Warnings in North Carolina, 2018Every severe thunderstorm warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.