Scattered thunderstorms developed along and west of the Blue Ridge during early and mid afternoon. A few of the storms produced brief severe weather, mainly in the form of damaging winds.
Every event with a place to put it. Tap one for its entry below.
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 along and west of the Blue Ridge during early and mid afternoon. A few of the storms produced brief severe weather, mainly in the form of damaging winds.
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 Jul 14, 1:38 PM EST, 1 hour 34 minutes earlier.
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
238 PM EDT Fri Jul 14 2017
.SYNOPSIS...
Hot and humid conditions will persist through the weekend, with
scattered to numerous afternoon and evening thunderstorms each day.
A cold front will move into the region from the northwest on
Saturday and stall in or near the area through Sunday. Another cold
front will approach on Monday and move southeast of the area on
Tuesday, with dry and warm conditions arriving by the middle of next
week.
&&
.NEAR TERM /THROUGH SATURDAY/...
As of 215 PM EDT Friday: Sharp upper trough is working its way
from the Great Lakes to the Mid-South, with upper ridging over the
Southeast and Carolina coasts. The attendant front is draped down
the Ohio Valley, with lee troughing in place across the western
Carolinas, and it will push through the area tonight and tomorrow.
For this afternoon, sbCAPEs of >3000 J/kg across the Piedmont plus
most of the area >1000 J/kg dCAPE has created a prime environment
for pulse convection through the afternoon, though lower dewpoints
at the surface and through the boundary layer across central SC will
be a limiting factor until the front approaches. Best convective
chances this afternoon will be across the northern tier where the
Day1 Marginal Risk remains in place, which is certainly warranted
for a low-end wind threat with steep low-level lapse rates. Given
the severe thunderstorms yesterday, would not be surprised to see a
handful of warnings issued this afternoon.
We should see convection wane overnight, but a good portion of the
hires models are keeping at least some thunder across the area,
enhanced by a boundary moving north across the Deep South. Pretty
much all CAM guidance has convection blossoming across AL/GA and
lifting north/northeast into the SC Upstate after midnight, so have
allowed pops to linger there. Low temperatures should continue to
hover 3-4 degrees above seasonal normals with the moist low-level
airmass in place.
As the front moves through, should see an increase in convection
again on Saturday across the entire area, and the Day2 Marginal Risk
covers just about all but the mountains, with sbCAPEs progged
between 1500-2000 J/kg, limited by increasing cloud cover. Again
mainly a low-end wind threat with steep low-level lapse rates.
However, even with the front moving through, temperatures won't
really respond, and should rise again to seasonal normal levels on
Saturday with continued low-level WAA.
&&
.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
As of 210 PM Friday: Upper trough over the eastern US strengthens
through the period as a short wave dives into the eastern Great
Lakes Sunday and closes off into an upper low on Monday. A series of
weak short waves will rotate through the trough and across the area
each day. The previous surface boundary across the area washes out
but a lee trough will remain in place. This and differential heating
will provide enough low level convergence and moisture pooling for
convective initiation each day. Moderate instability develops each
day with very high instability possible on Monday as mid level lapse
rates steepen with the arrival of cooler mid level temps. DCAPE
values remain high along with increasing surface delta theta-E
values as mid level dry air returns. Therefore, although coverage
will remain in the scattered range both days, isolated severe storms
with damaging winds are possible. Highs will remain nearly steady a
little below normal while highs remain nearly steady near normal.
&&
.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
As of 200 PM EDT Friday: The medium range beings Monday night amid
another convectively active evening as a surface front pushes
through the forecast area. The extent to which the front will be
able to clear the area on Tuesday is uncertain, and with upper
troughing still in place and an upper shortwave moving through, some
chance for storms will remain despite rising heights. Some drier air
will be allowed to work into the forecast area as an upper high
builds in over the central Plains on Wednesday, with Wednesday now
appearing that it may be a rare pop-free day across our forecast
area. Profiles are still dry on Thursday and the synoptic pattern
won't have changed much from Wednesday's configuration, so only
afternoon below-climo pops will enter into the far eastern NC
Piedmont zones where better moisture will be. A weak shortwave will
traverse the area Friday, and despite profiles remaining dry, some
showers may get squeezed out in the higher terrain. Pops remain
below climo everywhere until next Saturday, when another front will
approach the forecast area. Maximum and minimum temperatures will
climb gradually through the medium range before peaking on Thursday
and Friday as an upper high builds in before heights fall
slightly (and temperatures with them) by next weekend.
&&
.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
At KCLT and Elsewhere: MVFR Cu continuing to develop across the
area, with some light returns beginning to show up in the mountains.
VCTS with TEMPO TSRA still looks good for KAVL/KHKY, but removed all
thunder mention for other TAFs this afternoon/evening as chances not
high enough; if something develops will have to add it in later.
Could see another round of MVFR fog at KAVL in the predawn hours,
but as the front settles into the area, PROB30 has been introduced
for all TAFs before 18z. Generally SW winds through the period for
SC TAFs and KCLT, though a little veering may trend more W toward
the end of the period. KAVL will swing around NW after 00z, with
KHKY following suit by noon tomorrow.
Outlook: Scattered to numerous afternoon and evening thunderstorms
are expected each day through Monday across the area, with higher
coverage in the mountains. Morning fog development can be expected
in the mountain valleys and in areas that receive rainfall the
previous afternoon.
Confidence Table...
18-24Z 00-06Z 06-12Z 12-18Z
KCLT High 100% High 100% High 100% High 100%
KGSP High 100% High 100% High 100% High 100%
KAVL High 100% High 100% High 97% High 96%
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
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.
&&
SYNOPSIS...Carroll
NEAR TERM...TDP
SHORT TERM...RWH
LONG TERM...Carroll
AVIATION...TDPHazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 510 AM EDT Fri Jul 14 2017 GAZ010-NCZ033-048>053-058-059-062>065-501-503-505-507-509-150915- Rabun-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham- Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson- Caldwell Mountains-Burke Mountains-McDowell Mountains- Rutherford Mountains-Polk Mountains- 510 AM EDT Fri Jul 14 2017 This Hazardous Weather Outlook is for northeast Georgia and western North Carolina. .DAY ONE...Today and Tonight. Scattered to numerous thunderstorms are expected to develop across the mountains this afternoon and evening. While the main threats will be from torrential rainfall and cloud to ground lightning, a few of the storms could become briefly severe, capable of producing damaging wind gusts. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. ..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. ..Thursday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None. GAZ017-018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-506- 508-510-SCZ001>014-019-150915- Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell-Davie- Catawba-Rowan-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union- Greater Caldwell-Greater Burke-Eastern McDowell-Greater Rutherford- Eastern Polk-Oconee Mountains-Pickens Mountains-Greenville Mountains- Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg- Cherokee-York-Anderson-Abbeville-Laurens-Chester-Greenwood- 510 AM EDT Fri Jul 14 2017 This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina, western North Carolina and upstate South Carolina. .DAY ONE...Today and Tonight. Temperatures in the lower to mid 90s will combine with moderate to high levels of humidity to produce heat index values of around 100 across much of the Piedmont and foothills this afternoon. In addition, scattered to numerous thunderstorms are expected to develop across the area this afternoon and evening. While the main threats will be from torrential rainfall and cloud to ground lightning, a few of the storms could become briefly severe, capable of producing damaging wind gusts. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. ..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. ..Thursday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special Weather Statement
National Weather Service Greenville-Spartanburg SC
305 PM EDT FRI JUL 14 2017
NCZ035-036-141930-
Iredell NC-Alexander NC-
305 PM EDT FRI JUL 14 2017
...A STRONG THUNDERSTORM WILL IMPACT ALEXANDER AND NORTHWESTERN
IREDELL COUNTIES UNTIL 330 PM EDT...
At 305 PM EDT, Doppler radar was tracking a strong thunderstorm 4
miles west of Taylorsville, moving east at 30 mph.
Locations to be impacted include...
Taylorsville, Stony Point, Love Valley, Hiddenite, Little River In
Alexander County, Vashti, Millersville, Ellendale and Scotts.
Wind gusts up to 40 mph and pea size hail will be possible in these
areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.
&&
LAT...LON 3605 8088 3575 8098 3581 8114 3583 8114
3582 8118 3588 8134 3599 8133 3603 8127
3604 8120 3603 8118 3603 8117 3604 8113
3603 8107 3604 8104 3606 8099
TIME...MOT...LOC 1905Z 283DEG 25KT 3594 8126
MOORESpecial Weather Statement
National Weather Service Greenville-Spartanburg SC
316 PM EDT FRI JUL 14 2017
NCZ053-141945-
Buncombe NC-
316 PM EDT FRI JUL 14 2017
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN BUNCOMBE COUNTY
UNTIL 345 PM EDT...
At 315 PM EDT, Doppler radar was tracking a strong thunderstorm 6
miles north of Downtown Asheville, or near Weaverville, moving east
at 30 mph.
Locations to be impacted include...
Weaverville, B.R. Parkway-East Asheville To Craggy Gardens, North
Asheville, Woodfin, Swannanoa and Barnardsville.
Wind gusts up to 40 mph and pea size hail will be possible in these
areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.
&&
LAT...LON 3578 8234 3576 8233 3561 8235 3565 8266
3574 8266 3577 8260 3580 8234
TIME...MOT...LOC 1915Z 274DEG 25KT 3569 8258
MOORESpecial Weather Statement
National Weather Service Greenville-Spartanburg SC
336 PM EDT FRI JUL 14 2017
NCZ053-142000-
Buncombe NC-
336 PM EDT FRI JUL 14 2017
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL BUNCOMBE COUNTY UNTIL
400 PM EDT...
At 335 PM EDT, Doppler radar was tracking a strong thunderstorm near
Downtown Asheville, moving east at 30 mph.
Locations to be impacted include...
Downtown Asheville, East Asheville, West Asheville, North Asheville,
Black Mountain, Woodfin, Swannanoa, Fairview In Buncombe County,
Biltmore Forest and UNC Asheville.
Wind gusts up to 40 mph and pea size hail will be possible in these
areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.
&&
LAT...LON 3567 8228 3565 8229 3564 8228 3561 8228
3559 8229 3558 8227 3549 8227 3549 8232
3550 8233 3550 8234 3552 8262 3567 8260
3569 8229
TIME...MOT...LOC 1935Z 271DEG 25KT 3561 8253
MOORESpecial Weather Statement
National Weather Service Greenville-Spartanburg SC
337 PM EDT FRI JUL 14 2017
NCZ035-036-142000-
Iredell NC-Alexander NC-
337 PM EDT FRI JUL 14 2017
...A STRONG THUNDERSTORM WILL IMPACT EASTERN ALEXANDER AND
NORTHWESTERN IREDELL COUNTIES UNTIL 400 PM EDT...
At 337 PM EDT, Doppler radar was tracking a strong thunderstorm near
Taylorsville, moving east at 15 mph.
Locations to be impacted include...
Taylorsville, Stony Point, Love Valley, Hiddenite, Vashti, Scotts and
Millersville.
Wind gusts up to 40 mph, pea size hail and very heavy rainfall rates
up to 2 inches per hour will be possible in these areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.
&&
LAT...LON 3578 8093 3588 8124 3602 8122 3603 8109
3603 8105 3605 8088
TIME...MOT...LOC 1937Z 278DEG 13KT 3593 8115
MOOREThe Greer radar (KGSP), 79 km away, was scanning. The volume nearest the first event began at 20:12 UTC.
5 thunderstorm wind, 1 hail. Local standard time, as filed.
Public reported multiple trees, large limbs, and power lines blown down. Highway 74A was closed for a while due to debris over the road.
Public reported 3/4 inch hail.
EM reported a tree blown down on and blocking Highway 226 and additional trees down on Linville Rd.
County comms reported several trees blown down along Emmas Grove Rd near Old Gap Creek Rd.
Em reported trees blown down along Lytle Mountain Rd and other trees down along S. Main St in Marion.
Media reported two trees blown down on Talmadge St near Talmadge Ct.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2017Every state in 2017This day in weather historyWarnings in North Carolina, July 2017
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: 714339, 714344, 714341, 714340, 714342, 714343.