Alert archive / North Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 37, NWS Greenville-Spartanburg, SC

May 10, 2018Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 10, 2018, 7:49 PM EDT for Union County, North Carolina. It was in force for 26 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, 7:49 PM EDT (23:49 UTC)
Expired
May 10, 2018, 8:15 PM EDT
In force
26 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Union County, NC

The radar

The Columbia radar (KCAE), 125 km from the middle of the area, began a volume at 23:49 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

TimeReportWhereRemark
May 10, 7:50 PM EDTTSTM WND DMGWingate, NCMANY TREES DOWN IN WINGATE AND SEVERAL TREES DOWN EXTENDING TO MARSHVILLE. A FEW POWERLINES DOWN ALONG THE WAY AS WELL.

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 1 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.

IssuedProductOfficeLasted
May 10, 4:23 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.8 hours before the alert went out and 138 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2018-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2018-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted.

275 
WUUS52 KGSP 102349
SVRGSP
NCC179-110015-
/O.NEW.KGSP.SV.W.0037.180510T2349Z-180511T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
749 PM EDT THU MAY 10 2018

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Union County in the Piedmont of North Carolina...

* Until 815 PM EDT.

* At 749 PM EDT, a severe thunderstorm was located 7 miles east of
  Monroe, or near Marshville, moving east at 35 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...
  Monroe, Unionville, Wingate, Marshville, Lake Park, Sturdivants,
  Trinity, Hemby Bridge, Mineral Springs and Wesley Chapel.

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 3481 8032 3482 8068 3510 8065 3509 8029
TIME...MOT...LOC 2349Z 279DEG 30KT 3497 8040 

HAIL...1.00IN
WIND...60MPH
 
$$

Carroll
2 follow-up statements
292 
WWUS52 KGSP 110003
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
803 PM EDT THU MAY 10 2018

NCC179-110015-
/O.CON.KGSP.SV.W.0037.000000T0000Z-180511T0015Z/
Union NC-
803 PM EDT THU MAY 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR UNION COUNTY...

At 803 PM EDT, a severe thunderstorm was located 10 miles west of
Wadesboro, or 5 miles northeast of Sturdivants, moving east at 35
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...
Monroe, Unionville, Wingate, Marshville, Lake Park, Sturdivants,
Trinity, Hemby Bridge, Mineral Springs and Wesley Chapel.

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 3481 8032 3482 8068 3510 8065 3509 8029
TIME...MOT...LOC 0003Z 279DEG 30KT 3495 8025 

HAIL...1.00IN
WIND...60MPH
 
$$

Carroll
369 
WWUS52 KGSP 110009
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
809 PM EDT THU MAY 10 2018

NCC179-110019-
/O.EXP.KGSP.SV.W.0037.000000T0000Z-180511T0015Z/
Union NC-
809 PM EDT THU MAY 10 2018

...THE SEVERE THUNDERSTORM WARNING FOR UNION COUNTY WILL EXPIRE AT
815 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore the warning will be
allowed to expire.

LAT...LON 3481 8032 3482 8068 3510 8065 3509 8029
TIME...MOT...LOC 0009Z 279DEG 30KT 3494 8019 

$$

Carroll

What 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 hours 32 minutes earlier.

Area forecast discussion, May 10, 5:17 PM EDT, 2 hours 32 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...TDP
Hazardous weather outlook, May 10, 4:31 PM EDT, 3 hours 18 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

Local storm report, May 10, 6:43 PM EDT, 1 hour 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
643 PM EDT THU MAY 10 2018

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

0616 PM     TSTM WND DMG     2 SW SALISBURY          35.65N 80.51W
05/10/2018                   ROWAN              NC   TRAINED SPOTTER

            TREE ON A HOUSE ON MITCHELL AVENUE. TREE DOWN AT JAKE
            ALEXANDER BLVD AND I-85. ANOTHER TREE DOWN ON SUNSET
            DRIVE. TIME ESTIMATED BASED ON RADAR.

&&

OUTLAW
Local storm report, May 10, 7:15 PM EDT, 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
715 PM EDT THU MAY 10 2018

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

0600 PM     TSTM WND DMG     2 S SPARTANBURG         34.92N 81.93W
05/10/2018                   SPARTANBURG        SC   BROADCAST MEDIA

            TREE DOWN ON A HOUSE. TIME ESTIMATED BY RADAR.

&&

TPALMER
Special weather statement, May 10, 7:18 PM EDT, 31 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
718 PM EDT THU MAY 10 2018

SCZ012-102345-
Laurens SC-
718 PM EDT THU MAY 10 2018

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN LAURENS COUNTY
UNTIL 745 PM EDT...

At 718 PM EDT, Doppler radar was tracking a strong thunderstorm 14
miles northwest of Newberry, or near Joanna, moving east at 35 mph.

Locations to be impacted include...
Clinton, Joanna, Kinards and Mountville.

Wind gusts up to 50 mph and dime size hail will be possible in these
areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dime to nickel size hail can cause considerable damage to vehicles.
Consider moving vehicles to a covered storage area before the storm
arrives.

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 3441 8203 3458 8187 3446 8170 3445 8172
      3440 8176 3438 8178 3437 8178 3435 8181
      3435 8183 3433 8185 3432 8185 3432 8186
TIME...MOT...LOC 2318Z 285DEG 31KT 3444 8176

Carroll
Local storm report, May 10, 7:19 PM EDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
719 PM EDT THU MAY 10 2018

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

0335 PM     HAIL             5 E MILL SPRING         35.29N 82.07W
05/10/2018  E0.75 INCH       POLK               NC   PUBLIC

            HAIL UP TO DIME SIZED FELL OFF AND ON FOR 45 MINUTES AT
            THE TRYON INTERNATIONAL EQUESTRIAN CENTER. SOME WIND BUT
            DID NOT KNOW OF ANY WIND DAMAGE IN THE AREA.

&&

OUTLAW
Special weather statement, May 10, 7:20 PM EDT, 29 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
720 PM EDT THU MAY 10 2018

NCZ071-082-SCZ009-102345-
Union NC-Mecklenburg NC-York SC-
720 PM EDT THU MAY 10 2018

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN MECKLENBURG...
SOUTHWESTERN UNION AND SOUTHEASTERN YORK COUNTIES UNTIL 745 PM EDT...

At 720 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles east of Rock Hill, or 5 miles northeast of Catawba, moving east
at 25 mph.

Locations to be impacted include...
Monroe, Rock Hill, Indian Trail, Weddington, Fort Mill, Stallings,
Pineville, Wesley Chapel, Waxhaw and Mineral Springs.

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.

Dime to nickel size hail can cause considerable damage to vehicles.
Consider moving vehicles to a covered storage area before the storm
arrives.

&&

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
the Piedmont of North Carolina...and Upstate South Carolina.

LAT...LON 3482 8054 3482 8080 3494 8078 3508 8091
      3503 8090 3501 8091 3499 8089 3492 8086
      3490 8088 3487 8088 3484 8087 3482 8090
      3482 8101 3483 8101 3512 8096 3507 8051
TIME...MOT...LOC 2320Z 282DEG 22KT 3491 8085

Carroll
Special weather statement, May 10, 7:42 PM EDT, 7 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
742 PM EDT THU MAY 10 2018

NCZ082-110015-
Union NC-
742 PM EDT THU MAY 10 2018

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN UNION COUNTY UNTIL
815 PM EDT...

At 742 PM EDT, Doppler radar was tracking a strong thunderstorm 5
miles southeast of Monroe, or near Wingate, moving east at 20 mph.

Locations to be impacted include...
Monroe, Unionville, Wingate, Marshville, Sturdivants, Indian Trail
and Trinity.

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.

Dime to nickel size hail can cause considerable damage to vehicles.
Consider moving vehicles to a covered storage area before the storm
arrives.

&&

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
the Piedmont of North Carolina.

LAT...LON 3481 8032 3482 8066 3509 8062 3509 8029
TIME...MOT...LOC 2342Z 275DEG 16KT 3495 8046

Carroll

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 1:33 PM EDTSpecial Weather StatementGSPBurke27 min
May 10, 1:58 PM EDTSpecial Weather StatementGSPBurke32 min
May 10, 2:09 PM EDTSpecial Weather StatementGSPAvery, Mitchell36 min
May 10, 2:15 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford45 min
May 10, 2:27 PM EDTSpecial Weather StatementGSPBurke33 min
May 10, 2:42 PM EDTSpecial Weather StatementGSPHenderson33 min
May 10, 2:52 PM EDTSevere Thunderstorm WarningGSPPolk23 min
May 10, 2:56 PM EDTSpecial Weather StatementGSPAvery, Mitchell34 min
May 10, 3:00 PM EDTSpecial Weather StatementGSPGraham30 min
May 10, 3:04 PM EDTSpecial Weather StatementGSPBurke26 min
May 10, 3:13 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford47 min
May 10, 3:28 PM EDTSpecial Weather StatementGSPBurke47 min
May 10, 3:33 PM EDTSpecial Weather StatementGSPGraham, Swain42 min
May 10, 3:35 PM EDTSpecial Weather StatementGSPPolk25 min
May 10, 3:50 PM EDTSpecial Weather StatementGSPHaywood25 min
May 10, 3:55 PM EDTSevere Thunderstorm WarningGSPBurke, Catawba, Lincoln50 min
May 10, 3:58 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford47 min
May 10, 4:07 PM EDTSpecial Weather StatementGSPJackson38 min
May 10, 4:12 PM EDTSpecial Weather StatementGSPBurke33 min
May 10, 4:18 PM EDTSpecial Weather StatementGSPAlexander, Iredell42 min
May 10, 4:31 PM EDTSevere Thunderstorm WarningGSPAlexander, Iredell44 min
May 10, 4:46 PM EDTSevere Thunderstorm WarningGSPHenderson, Polk, Rutherford44 min
May 10, 4:54 PM EDTSpecial Weather StatementGSPCatawba36 min
May 10, 5:07 PM EDTSpecial Weather StatementGSPPolk23 min
May 10, 5:12 PM EDTSevere Thunderstorm WarningGSPPolk48 min
May 10, 5:15 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell, Rowan45 min
May 10, 5:19 PM EDTSpecial Weather StatementGSPPolk86 min
May 10, 5:19 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford41 min
May 10, 5:39 PM EDTSpecial Weather StatementGSPCabarrus51 min
May 10, 6:00 PM EDTSpecial Weather StatementGSPDavie, Rowan30 min
May 10, 6:02 PM EDTSpecial Weather StatementGSPCleveland43 min
May 10, 7:20 PM EDTSpecial Weather StatementGSPUnion25 min
May 10, 7:42 PM EDTSpecial Weather StatementGSPUnion33 min

Nearby

Severe 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.