Alert archive / North Carolina / Tornado Warnings in 2018

Tornado Warning 4, NWS Greenville-Spartanburg, SC

July 23, 2018Gaston County, North Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Jul 23, 2018, 5:03 PM EDT for Gaston County, North Carolina. It was in force for 15 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
Jul 23, 2018, 5:03 PM EDT (21:03 UTC)
Expired
Jul 23, 2018, 5:18 PM EDT
In force
15 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Gaston County, NC

The radar

The Greer radar (KGSP), 114 km from the middle of the area, began a volume at 21:03 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
Jul 23, 5:12 PM EDTTSTM WND DMG1 Sse Mcadenville, NCLAW ENFORCEMENT REPORTED POWER LINES DOWN AT POPLAR ST AND WESLEYAN DR IN MCADENVILLE. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.1 hours before the alert went out and 139 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 2018-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 295 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2018-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
295 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
561 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted.

127 
WFUS52 KGSP 232103
TORGSP
NCC071-232130-
/O.NEW.KGSP.TO.W.0004.180723T2103Z-180723T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
503 PM EDT MON JUL 23 2018

The National Weather Service in Greenville-Spartanburg has issued a

* Tornado Warning for...
  Gaston County in the Piedmont of North Carolina...

* Until 530 PM EDT.
    
* At 503 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Gastonia, or near Lowell, moving north at 20 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Expect damage to mobile homes, roofs, and vehicles.

* This dangerous storm will be near...
  Ranlo, Mt Holly and Lake Wylie around 510 PM EDT.
  Dallas around 520 PM EDT.
  Stanley and High Shoals around 530 PM EDT.

Other locations impacted by this dangerous thunderstorm include
Crowders and Lucia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

A brief, weak tornado is likely. Mobile homes could be flipped.
Falling trees can cause death or serious injury, and major damage to
houses. Move to a basement or an interior room on the lowest floor of
a sturdy building.

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 3530 8100 3527 8102 3525 8101 3522 8101
      3518 8100 3515 8113 3516 8120 3541 8133
      3540 8101 3531 8100
TIME...MOT...LOC 2103Z 165DEG 16KT 3524 8112 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

TDP
1 follow-up statement
360 
WWUS52 KGSP 232118
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
518 PM EDT MON JUL 23 2018

NCC071-232128-
/O.CAN.KGSP.TO.W.0004.000000T0000Z-180723T2130Z/
Gaston NC-
518 PM EDT MON JUL 23 2018

...THE TORNADO WARNING FOR GASTON COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

If you observed large hail or wind damage, please report it 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 3530 8100 3527 8102 3525 8101 3522 8101
      3518 8100 3515 8113 3516 8120 3541 8133
      3540 8101 3531 8100
TIME...MOT...LOC 2116Z 165DEG 16KT 3530 8114 

$$

TDP

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jul 23, 5:00 PM EDT, 3 minutes earlier.

Area forecast discussion, Jul 23, 5:00 PM EDT, 3 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
500 PM EDT Mon Jul 23 2018

.SYNOPSIS...
A broad upper low will settle across the Deep South through
Wednesday. This low will remain nearly stationary and support moist
unsettled weather across the region through mid-week, before
weakening ahead of an approaching cold front.

&&

.NEAR TERM /THROUGH TUESDAY/...
As of 430 PM: Updated convective coverage thru the remainder of
the afternoon per radar and HRRR output. Touched up temps also
using GLAMP values, to try to capture the outflow cooling. Earlier
guidance disagreed on whether a second round of convection would
move over the same area. There is good mesoscale and synoptic
agreement on the upper low retrograding slightly or just dropping
slowly southward keeping the trough axis to our west which keeps
southerly flow over the area. However, there is disagreement on just
how much moisture is pumped into the area with many guidance members
keeping PW values below 2 inches with the highest amounts to our
east. There were certainly much lower PW values than expected to
start the day on the observed 12Z RAOBs, and lower than expected
upstream values as well.  Therefore, it is questionable just
how much precip will fall after this first round of convection
moves through. Latest CAM output does reflect a lull following
the current activity, so we will continue to follow the overall
trends in the guidance and allow PoPs to trend slowly downward
through the night. Will issue a Flash Flood Watch for all of
our NC counties except for the Central and Southern Mountains
farther west of the moisture gradient. Will include Cherokee,
York, and Chester SC since they are in the path as well. Given the
disagreement in the guidance after this evening, will just issue
the watch through tonight. Later shifts can reevaluate and adjust
the watch as needed based on the latest guidance.

Shear and instability have been increasing through the day. However,
DCAPE values remain modest. These could increase late this
afternoon, so can't rule out some strong storms and an isolated
severe downburst. These would be most likely along and south of
the I-85 corridor.

Numerous to potentially widespread convective coverage develops
again Tuesday. As mentioned above, there are some questions whether
conditions will be favorable for Watch level flash flooding events
during the day. Certainly isolated heavy rainfall will be possible.
Severe chances should be less, but again, can't be completely
ruled out.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
As of 220 PM EDT Monday: The short-term fcst picks up at 00z on
Wednesday with a persistent upper trof centered over the Southeast
CONUS and steep upper ridging to the east and west of the trof.
Over the next couple of days, heights will gradually rise as the
trof deamplifies and lifts northward. By the end of the period
late Thurs, another broad upper trof will dig down across the Great
Lakes while ridging maintains itself to the east and west. A large
sfc low will be co-located with the upper low over the Southeast
to start the period. On Wed, the sfc low begins to lift northward
as a cold front approaches the fcst area from the NW. The front is
slow to push thru the CWFA, but by Thurs afternoon most of the
guidance has it just SE of the CWFA. In its wake, high pressure
will spread over the area to end the period. As for the sensible
wx, moist SELY low-lvl flow will be in place early Wed. As the day
wears on, and the cold front will gradually push into the CWFA
and the axis of SLY winds will shift farther east. By Thursday
morning, winds will have become light and vrb over most of the
fcst area and NWLY over the higher terrain. In addition, much
of the deeper moisture will have moved south and east of the CWFA.
This should make for a drier Thurs with less cloud cover by the
afternoon. The main threat for the period is still isolated
flooding on Wed with a greater overall threat across the eastern
half of the CWFA. High temperatures will start out about a category
below normal on Wed and warm to near normal for Thursday as cloud
cover dissipates.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
As of 155 pm Monday: The upper pattern maintains a trough over our
region. Starting Thursday evening with a weak cold front crossing
our area from the NW.  Models show moves slowly across the Midlands
to the coastal plain on Friday and Friday night with drier air
filtering into the region.  The higher Precipitable Water values
will be temporarily suppressed to the coast and Florida to start the
weekend. However, P Wats of around 2 inches for the foothills and
piedmont are forecast to return by Sunday night and remain to start
the week. By Sunday, the winds will shift to a more southerly
direction beginning another wet period in our forecast. On the 500mb
map, the next big trough will cross the upper Plains Saturday night
with the trough axis reaching the Mississippi River by early Monday.
Moist flow out of the Gulf will become well established Monday and
Monday night. CAPE values will be rather low through the medium
range but rising to around 2000 from Elberton to Chester late
Monday. High temperatures around normal Friday and Saturday then a
little below normal under the thick clouds and lower heights
under the trough with low temperatures a little above normal.

&&

.AVIATION /21Z MONDAY THROUGH SATURDAY/...
At KCLT and Elsewhere: Convection quickly developing across the area
this afternoon. Have VCTS and TEMPOs to cover. Will be some MVFR
cigs even outside of the convection as low based cumulus develop as
well. Winds will be easterly through the afternoon into the early
evening, SSE at KAVL. Convection will diminish overnight but low
stratus develops brining restrictions back across the area. Should
see MVFR then IFR overnight. There will be some vsby restrictions as
well. Vsby will improve relatively quickly after daybreak but cigs
only slowly lift to low VFR through the day. Expect convection to
develop again during the afternoon.

Outlook: An active/wet period is expected to continue through at
least Wednesday as a slow moving low pressure system impacts much of
the East. Numerous coverage of showers and thunderstorms is expected
during this period with associated lower restrictions. While there
will likely be an afternoon/evening peak in the coverage on most
days, higher-than-normal chances will also exist during the
overnight and morning hours. Drier air works in Thursday and Friday,
resulting in more typical late July diurnal convection chances.

Confidence Table...

            21-03z        03-09Z        09-15Z        15-18Z
KCLT       Med   77%     High  91%     Med   70%     High  98%
KGSP       High 100%     High  98%     Med   79%     High  93%
KAVL       High  98%     High  89%     High  85%     High  86%
KHKY       High 100%     High  82%     Med   70%     High  91%
KGMU       High 100%     High  98%     High  83%     High  83%
KAND       High 100%     High  98%     High  90%     High  91%

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...Flash Flood Watch through late tonight for NCZ033-035>037-049-
     050-056-057-068>072-082-501>510.
SC...Flash Flood Watch through late tonight for SCZ008-009-014.

&&

SYNOPSIS...DEO
NEAR TERM...RWH/Wimberley
SHORT TERM...JPT
LONG TERM...DEO
AVIATION...RWH
Hazardous weather outlook, Jul 23, 4:20 PM EDT, 43 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
420 PM EDT Mon Jul 23 2018

NCZ033-035>037-049-050-056-057-068>072-082-501>510-SCZ008-009-014-
242030-
Avery-Alexander-Iredell-Davie-Yancey-Mitchell-Catawba-Rowan-
Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Cherokee-York-Chester-
420 PM EDT Mon Jul 23 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH EARLY TUESDAY...

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.

   Flash Flood Watch.

Numerous to widespread showers and thunderstorms will continue to
develop across the area this evening and later tonight. The main
threat from the showers and storms will be heavy to excessive rainfall,
which could result in localized flash flooding, especially in urban
areas along the I-77 corridor. In addition, a couple of brief severe
thunderstorms will be possible, with damaging winds being the primary
threat. Cloud to ground lightning can occur with any thunderstorm.

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

..Tuesday...Heavy rain and flooding possible.
..Wednesday...Heavy rain and flooding possible.
..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...

Skywarn spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

GAZ010-017-018-026-028-029-NCZ048-051>053-058-059-062>065-SCZ001>007-
010>013-019-242030-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Madison-Swain-Haywood-
Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Anderson-Abbeville-Laurens-Union-Greenwood-
420 PM EDT Mon Jul 23 2018

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

.DAY ONE...Tonight.

Numerous showers and scattered thunderstorms will develop across the
area this evening and later tonight. The main threats will be from
cloud to ground lightning and torrential rainfall. Localized excessive
rainfall and flash flooding, along with a brief severe thunderstorm
producing damaging winds, cannot be ruled out.

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

..Tuesday...Heavy rain and flooding possible.
..Wednesday...Heavy rain and flooding possible.
..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...

Skywarn spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

JPT

In the hours before

Special weather statement, Jul 23, 3:00 PM EDT, 2 hours 3 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
300 PM EDT MON JUL 23 2018

SCZ012-231930-
Laurens SC-
300 PM EDT MON JUL 23 2018

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN LAURENS COUNTY
UNTIL 330 PM EDT...

At 300 PM EDT, Doppler radar was tracking a strong thunderstorm 14
miles northwest of Newberry, or near Joanna, moving northwest at 15
mph.

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

Wind gusts up to 40 mph and pea size hail will be possible in these
areas.

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.

&&

LAT...LON 3451 8205 3460 8188 3458 8186 3460 8184
      3457 8180 3456 8175 3457 8175 3456 8173
      3448 8169 3445 8171 3445 8172 3437 8178
      3433 8185
TIME...MOT...LOC 1900Z 148DEG 11KT 3442 8179

TDP
Special weather statement, Jul 23, 3:19 PM EDT, 1 hour 44 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
319 PM EDT MON JUL 23 2018

NCZ036-037-056-057-071-072-231945-
Rowan NC-Davie NC-Iredell NC-Mecklenburg NC-Cabarrus NC-Catawba NC-
319 PM EDT MON JUL 23 2018

...A CLUSTER OF THUNDERSTORMS WILL IMPACT WESTERN CABARRUS...
SOUTHEASTERN CATAWBA...SOUTHWESTERN DAVIE...IREDELL...NORTH CENTRAL
MECKLENBURG AND WESTERN ROWAN COUNTIES UNTIL 345 PM EDT...

At 319 PM EDT, Doppler radar indicated the leading edge of a cluster
of thunderstorms along a line extending from 6 miles southwest of
Mocksville to 7 miles northwest of Kannapolis to 4 miles south of
Downtown Concord, and moving northwest at 20 mph.

Locations to be impacted include...
Huntersville, Kannapolis, Downtown Concord, Statesville, Northeast
Charlotte, West Concord, Cornelius, Mooresville, Davidson and
Harrisburg.

Very heavy rainfall rates up to 2 inches per hour will be possible in
these areas.

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.

&&

LAT...LON 3588 8057 3554 8055 3525 8049 3533 8087
      3553 8095 3553 8094 3555 8098 3570 8105
      3606 8098 3606 8089
TIME...MOT...LOC 1919Z 113DEG 19KT 3584 8065 3558 8070 3534 8059

TDP
Special weather statement, Jul 23, 3:28 PM EDT, 1 hour 35 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
328 PM EDT MON JUL 23 2018

SCZ012-232000-
Laurens SC-
328 PM EDT MON JUL 23 2018

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL LAURENS COUNTY UNTIL 400
PM EDT...

At 328 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles east of Laurens, or near Clinton, moving northwest at 20 mph.

Locations to be impacted include...
Laurens, Clinton, Gray Court, Joanna, Ora, Hickory Tavern and Enoree.

Wind gusts up to 40 mph and pea size hail will be possible in these
areas.

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.

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 3451 8219 3468 8204 3466 8200 3466 8198
      3465 8197 3465 8195 3462 8193 3459 8189
      3460 8188 3458 8186 3460 8184 3451 8173
      3437 8187
TIME...MOT...LOC 1928Z 126DEG 15KT 3449 8188

TDP
Special weather statement, Jul 23, 3:46 PM EDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
346 PM EDT MON JUL 23 2018

NCZ036-057-071-072-232015-
Rowan NC-Iredell NC-Mecklenburg NC-Cabarrus NC-
346 PM EDT MON JUL 23 2018

...A CLUSTER OF THUNDERSTORMS WILL IMPACT NORTHWESTERN CABARRUS...
SOUTHEASTERN IREDELL...CENTRAL MECKLENBURG AND SOUTHWESTERN ROWAN
COUNTIES UNTIL 415 PM EDT...

At 346 PM EDT, Doppler radar indicated the leading edge of a cluster
of thunderstorms along a line extending from near Kannapolis to 4
miles east of Uptown Charlotte, and moving north at 20 mph.

Locations to be impacted include...
Uptown Charlotte, Huntersville, Kannapolis, Downtown Concord, Central
Charlotte, South Charlotte, Northeast Charlotte, East Charlotte,
Northwest Charlotte and West Concord.

Wind gusts up to 40 mph and pea size hail will be possible in these
areas.

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.

&&

LAT...LON 3509 8078 3526 8099 3536 8094 3536 8092
      3537 8093 3574 8073 3546 8056
TIME...MOT...LOC 1946Z 159DEG 17KT 3546 8062 3521 8077

TDP
Special weather statement, Jul 23, 3:55 PM EDT, 1 hour 8 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
355 PM EDT MON JUL 23 2018

SCZ007-008-012-013-232030-
Cherokee SC-Laurens SC-Union SC-Spartanburg SC-
355 PM EDT MON JUL 23 2018

...A CLUSTER OF THUNDERSTORMS WILL IMPACT CENTRAL LAURENS...CENTRAL
SPARTANBURG...CHEROKEE AND NORTHWESTERN UNION COUNTIES UNTIL 430 PM
EDT...

At 355 PM EDT, Doppler radar indicated the leading edge of a cluster
of thunderstorms along a line extending from 6 miles south of Gaffney
to near Laurens, and moving northwest at 20 mph.

Locations to be impacted include...
Spartanburg, Gaffney, Laurens, Woodruff, Pacolet, Cowpens, Roebuck,
Gray Court, Jonesville and Pacolet Mills.

Wind gusts up to 40 mph and very heavy rainfall rates up to 2 inches
per hour 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.

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.

&&

LAT...LON 3464 8222 3518 8177 3518 8167 3500 8149
      3437 8201
TIME...MOT...LOC 1955Z 157DEG 19KT 3498 8163 3449 8199

TDP
Special weather statement, Jul 23, 4:58 PM EDT, 5 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
458 PM EDT MON JUL 23 2018

NCZ068-070-071-232130-
Gaston NC-Cleveland NC-Mecklenburg NC-
458 PM EDT MON JUL 23 2018

...A CLUSTER OF THUNDERSTORMS WILL IMPACT MECKLENBURG...SOUTHEASTERN
CLEVELAND AND GASTON COUNTIES UNTIL 530 PM EDT...

At 458 PM EDT, Doppler radar indicated the leading edge of a cluster
of thunderstorms along a line extending from 11 miles southwest of
Gastonia to 7 miles southeast of Uptown Charlotte, and moving
northwest at 15 mph.

Locations to be impacted include...
Gastonia, Uptown Charlotte, Shelby, Huntersville, Central Charlotte,
South Charlotte, Northeast Charlotte, Southwest Charlotte, East
Charlotte and Northwest Charlotte.

Wind gusts up to 40 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.

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.

&&

LAT...LON 3508 8072 3510 8093 3511 8093 3511 8103
      3514 8105 3515 8105 3517 8143 3544 8167
      3536 8073 3512 8066
TIME...MOT...LOC 2058Z 155DEG 15KT 3519 8136 3514 8077

TDP

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:15 PM EDTSpecial Weather StatementGSPUnion30 min
Jul 23, 2:02 PM EDTSpecial Weather StatementGSPCabarrus, Rowan43 min
Jul 23, 2:44 PM EDTSpecial Weather StatementGSPCabarrus, Rowan31 min
Jul 23, 3:03 PM EDTFlash Flood WatchGSPAlexander, Avery, Burke, Cabarrus, Caldwell, Catawba and 13 more33 hr
Jul 23, 3:19 PM EDTSpecial Weather StatementGSPCabarrus, Iredell26 min
Jul 23, 3:46 PM EDTSpecial Weather StatementGSPMecklenburg29 min
Jul 23, 3:49 PM EDTSevere Thunderstorm WarningGSPCabarrus, Iredell, Mecklenburg, Rowan19 min
Jul 23, 4:30 PM EDTAreal Flood AdvisoryGSPCabarrus, Mecklenburg, Union4 hr
Jul 23, 4:58 PM EDTSpecial Weather StatementGSPCleveland, Gaston, Mecklenburg32 min
Jul 23, 5:20 PM EDTSpecial Weather StatementGSPGaston25 min
Jul 23, 5:21 PM EDTSpecial Weather StatementGSPRowan24 min
Jul 23, 6:45 PM EDTAreal Flood AdvisoryGSPBurke2 hr

Nearby

Tornado Warnings in North Carolina, 2018Every tornado warning in 2018Tornadoes 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.