Scattered thunderstorms developed over western North Carolina during the late afternoon and evening. One storm produced brief damaging winds in McDowell County.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GSP wrote it up.
Scattered thunderstorms developed over western North Carolina during the late afternoon and evening. One storm produced brief damaging winds in McDowell County.
The local office's own words before the first event, 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 the first event at Jun 4, 6:50 PM EST, 25 minutes earlier.
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
750 PM EDT Thu Jun 4 2020
.SYNOPSIS...
Shower and thunderstorm chances will prevail for the rest of the
week. The best chance for any activity to occur will be Friday
and Saturday as an approaching cold front makes its way into the
region from the northwest. The front may stall near the southern
part of the area Sunday into early next week, keeping isolated to
scattered showers and thunderstorms in the forecast.
&&
.NEAR TERM /THROUGH FRIDAY/...
As of 750 PM EDT: Main update for the 00Z TAF issuance along
with minor adjustments made to temperatures/PoPs/wx to coincide
with latest trends as the rest of the near term remains on
track. Showers and thunderstorms continue to blossom and push
northeastward across the area this evening, all west of the I-77
corridor. Recent trends have shown gusty winds and heavy
downpours with these storms but expect the window for an
isolated strong to severe thunderstorm is quickly coming to a
close. Current temperatures are in the lower 80s, cooler into
the low to mid 70s, especially where showers and thunderstorms
have moved through.
Previous discussion: The showers and storms should exhibit a diurnal
dropoff this evening, but as long as the weak upper trof remains to
our west, there will be support for keeping some shower activity
into the overnight hours, mainly over the western side of the mtns.
Moisture will increase a bit more overnight, so there could be some
fog across the higher terrain toward daybreak on Friday. Low temps
will be seasonally mild. On Friday, the weak trof to the west will
drift slowly across the region, creating an environment a bit more
favorable for deep convection. The models respond to this by showing
even greater coverage during peak heating as we should have no
problem realizing an uncapped 2500 J/kg of sbCAPE. Shear will be
slightly stronger as well, but more importantly there will be the
axis of the wave at 850 mb and 500 mb to provide some organization
to the storms. Our chances for a few severe storms look no better
than today, but perhaps with something to focus them, we might
organize a cold pool, so we won't rule them out even though we are
not in the Day 2 Marginal Risk. The increasing shower coverage and
cloud coverage should keep temps a degree or two below todays values.
&&
.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
As of 130 pm EDT Thursday: A strong upper-level ridge will build
east from the southern Plains over the mid-Mississippi River Valley,
with associated height rises eastward toward the southern
Appalachians. Deep-layer northwest flow will result downstream of
this ridge over our forecast area. A shortwave dropping into the
southern Appalachians, along with a weak passing cold front, should
yield scattered convection with a diurnal peak Saturday afternoon.
The boundary could stall in the vicinity of the area, especially the
southern tier, through late weekend.
Heights will build more strongly over the central CONUS and eastward
through Sunday as Cristobal slips under the ridge toward the
central/western Gulf Coast. Return flow moisture could begin
encroaching again from the south through Sunday in proximity to the
stalled frontal zone. Small chance PoPs will be warranted,
especially for southern tier zones Sunday afternoon. Above climo
temperatures will continue, with humid conditions.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As of 145 pm EDT Thursday: The remnant Cristobal circulation should
get absorbed into the longwave trough digging from the Rockies to
the Plains Monday through Tuesday, although the 12Z operational GFS
has become an outlier in permitting the remnants to circle back
toward the Gulf of Mexico. For now, will follow the consensus
ensemble solution, with a downstream ridge axis building over the
eastern seaboard early next week. Deeper moisture will persist over
mainly the southern/western parts of the forecast area. Although low-
level east to southeast upslope will generate clouds and possibly
some showers throughout. Weak wedging could also result east of the
mountains Monday and Tuesday, with below climo maxes expected.
The moisture from the Cristobal remnants, and then the trailing
northern stream wave, will likely reach the region Wednesday. As
mentioned previously, the operational GFS now suggests that the
passage of the tropical moisture may not be so swift or clean as it
stalls or retrogrades the remnant Cristobal circulation. This
appears to be an outlier at present, but will hedge by extending
PoPs into Thursday with instability left behind.
&&
.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
At KCLT and elsewhere: Mainly VFR prevails at the TAF sites this
evening with scattered showers and thunderstorms pushing northeast
across the area, well west of KCLT. Though could not entirely rule
out VCSH/-SHRA at KCLT over the next few hours. Into tonight, a
rouge light shower will be possible at the TAF sites, but overall
expect dry conditions with infiltrating moisture allowing for MVFR
cigs to move into the area overnight. Some guidance continues to
suggest IFR cigs before daybreak, improving to MVFR and then VFR
after daybreak, as noted in going fcst. On Friday, expect increasing
chances for -SHRA/-TSRA in the afternoon and evening hours with
brief flight restrictions possible especially in any heavy downpour
or stronger storm. Southerly winds 10 to 15 kts will become light
overnight before veering to the SSW and increasing to 5 to 8 kts on
Friday.
Outlook: Periods of flight restrictions will be possible in showers
and thunderstorms into Friday evening. Otherwise expect VFR with
mountain valley fog possible each night.
Confidence Table...
00-06Z 06-12Z 12-18Z 18-00Z
KCLT High 100% High 90% High 90% High 100%
KGSP High 95% High 85% High 96% High 100%
KAVL High 96% Med 68% Med 78% High 99%
KHKY High 100% High 91% High 87% High 99%
KGMU High 99% High 86% High 96% High 100%
KAND High 100% High 86% High 95% 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 are available at
the following link:
www.weather.gov/gsp/aviation
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.
&&
SYNOPSIS...CC
NEAR TERM...PM/12
SHORT TERM...HG
LONG TERM...HG
AVIATION...12Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 256 PM EDT Thu Jun 4 2020 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-051900- Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander- Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba- Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania- Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC- Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke- McDowell Mountains-Eastern McDowell-Rutherford Mountains- Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains- Pickens Mountains-Greenville Mountains-Greater Oconee- Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York- Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood- 256 PM EDT Thu Jun 4 2020 This Hazardous Weather Outlook is for northeast Georgia, Piedmont North Carolina, western North Carolina, and Upstate South Carolina. .DAY ONE...This afternoon and tonight. Scattered thunderstorms will develop across the region late this afternoon through early this evening. A few of these storms could become strong to severe. The main threats will be lightning, gusty winds, and small hail, though some damaging winds and large hail cannot be ruled out. These thunderstorms will move slowly and produce torrential rainfall in affected locations as well. Isolated flooded of low-lying and poor drainage areas may develop. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None. HG
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
655 PM EDT Thu Jun 4 2020
SCZ003-006-007-042330-
Greenville Mountains SC-Spartanburg SC-Greater Greenville SC-
655 PM EDT Thu Jun 4 2020
...A THUNDERSTORM WITH TORRENTIAL RAINFALL WILL IMPACT NORTHEASTERN
GREENVILLE AND NORTHWESTERN SPARTANBURG COUNTIES UNTIL 730 PM EDT...
At 655 PM EDT, Doppler radar was tracking a thunderstorm with
torrential rainfall 12 miles northeast of Greenville Downtown, or
near Greer, moving northeast at 15 mph.
Locations to be impacted include...
Spartanburg, Greer, Taylors, Duncan, Lyman, Wellford, Inman,
Reidville, Lake Robinson and GSP Airport.
Wind gusts up to 45 mph, dime size hail and 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 3496 8238 3515 8221 3497 8194 3478 8214
3478 8215 3477 8215
TIME...MOT...LOC 2255Z 214DEG 12KT 3494 8219
CarrollSpecial Weather Statement National Weather Service Greenville-Spartanburg SC 714 PM EDT Thu Jun 4 2020 NCZ065-509-510-SCZ003-006-007-042345- Henderson NC-Polk Mountains NC-Eastern Polk NC- Greenville Mountains SC-Spartanburg SC-Greater Greenville SC- 714 PM EDT Thu Jun 4 2020 ...A THUNDERSTORM WITH TORRENTIAL RAINFALL WILL IMPACT SOUTHEASTERN HENDERSON...SOUTHWESTERN POLK...NORTHEASTERN GREENVILLE AND NORTHWESTERN SPARTANBURG COUNTIES UNTIL 745 PM EDT... At 714 PM EDT, Doppler radar was tracking a thunderstorm with torrential rainfall 13 miles southwest of Columbus, or near Tigerville, moving northeast at 15 mph. Locations to be impacted include... Columbus, Flat Rock, Landrum, Tryon, Saluda, Tigerville, Lake Robinson, Pleasant Ridge State Park, Jones Gap State Park and Slater-Marietta. Wind gusts up to 50 mph and dime 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 3522 8208 3496 8232 3510 8259 3534 8239 TIME...MOT...LOC 2314Z 214DEG 12KT 3509 8235 Carroll
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
722 PM EDT Thu Jun 4 2020
NCZ059-062>064-050000-
Transylvania NC-Southern Jackson NC-Northern Jackson NC-Macon NC-
722 PM EDT Thu Jun 4 2020
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL MACON...
SOUTHWESTERN TRANSYLVANIA AND SOUTHEASTERN JACKSON COUNTIES UNTIL 800
PM EDT...
At 722 PM EDT, Doppler radar was tracking a strong thunderstorm 16
miles east of Franklin, or near Cashiers, moving northeast at 15 mph.
Locations to be impacted include...
Cashiers, Lake Toxaway, Lake Glenville, Gorges State Park, Highlands,
Tuckasegee, Balsam Grove, Sapphire, Wolf Mountain and Whiteside
Mountain.
Wind gusts up to 45 mph and half inch 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 3538 8311 3519 8279 3502 8303 3501 8308
3509 8326
TIME...MOT...LOC 2322Z 214DEG 12KT 3512 8310
CarrollSpecial Weather Statement National Weather Service Greenville-Spartanburg SC 729 PM EDT Thu Jun 4 2020 NCZ501>504-050000- Caldwell Mountains NC-Burke Mountains NC-Greater Burke NC- Greater Caldwell NC- 729 PM EDT Thu Jun 4 2020 ...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN CALDWELL AND NORTHWESTERN BURKE COUNTIES UNTIL 800 PM EDT... At 729 PM EDT, Doppler radar was tracking a strong thunderstorm 7 miles northwest of Morganton, or near Table Rock, moving northeast at 15 mph. Locations to be impacted include... Morganton, Gamewell, Glen Alpine, Table Rock, Lake James, Lake James State Park, Edgemont, Collettsville and Oak Hill. Wind gusts up to 55 mph and nickel 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 3571 8177 3580 8191 3602 8176 3590 8156 TIME...MOT...LOC 2329Z 214DEG 12KT 3583 8178 Carroll
Special Weather Statement National Weather Service Greenville-Spartanburg SC 749 PM EDT Thu Jun 4 2020 NCZ053-505>508-050015- Buncombe NC-Greater Rutherford NC-McDowell Mountains NC- Rutherford Mountains NC-Eastern McDowell NC- 749 PM EDT Thu Jun 4 2020 ...A THUNDERSTORM WITH TORRENTIAL RAINFALL WILL IMPACT SOUTHEASTERN MCDOWELL...NORTHWESTERN RUTHERFORD AND SOUTHEASTERN BUNCOMBE COUNTIES UNTIL 815 PM EDT... At 748 PM EDT, Doppler radar was tracking a thunderstorm with torrential rainfall 12 miles northwest of Rutherfordton, or 6 miles northeast of Lake Lure, moving northeast at 15 mph. Locations to be impacted include... Marion, Old Fort, Lake Lure, Chimney Rock State Park, Green Hill, Thermal City, Pleasant Gardens, Glenwood, Union Mills and Shingle Hollow. Wind gusts up to 50 mph, dime size hail and 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. 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 3556 8182 3535 8202 3548 8228 3573 8211 TIME...MOT...LOC 2348Z 214DEG 12KT 3550 8211 Carroll
Special Weather Statement National Weather Service Greenville-Spartanburg SC 754 PM EDT Thu Jun 4 2020 GAZ010-NCZ062-063-SCZ001-050030- Rabun GA-Southern Jackson NC-Macon NC-Oconee Mountains SC- 754 PM EDT Thu Jun 4 2020 ...A THUNDERSTORM WITH TORRENTIAL RAINFALL WILL IMPACT NORTHEASTERN RABUN...SOUTHEASTERN MACON...SOUTH CENTRAL JACKSON AND NORTHWESTERN OCONEE COUNTIES UNTIL 830 PM EDT... At 754 PM EDT, Doppler radar was tracking a thunderstorm with torrential rainfall 7 miles northeast of Clayton, or 4 miles southeast of Sky Valley, moving northeast at 15 mph. Locations to be impacted include... Highlands, Mountain City, Dillard, Sky Valley, Black Rock Mountain State Park, Scaly Mountain, Bad Creek, Pine Mountain and Whiteside Mountain. Wind gusts up to 50 mph, nickel size hail and 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. 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 3482 8324 3492 8342 3517 8328 3501 8301 TIME...MOT...LOC 2354Z 214DEG 12KT 3493 8329 Carroll
The Greer radar (KGSP), 92 km away, was scanning. The volume nearest the first event began at 00:16 UTC.
1 thunderstorm wind. Local standard time, as filed.
Emergency manager reported trees blown down off E Court St.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2020Every state in 2020This day in weather historyWarnings in North Carolina, June 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 905084.