Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 150, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 25, 2018, 2:44 PM EDT for Spartanburg County, South Carolina. It was in force for 27 min. 2 reports 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
- Jun 25, 2018, 2:44 PM EDT (18:44 UTC)
- Expired
- Jun 25, 2018, 3:11 PM EDT
- In force
- 27 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Spartanburg County, SC
The radar
The Greer radar (KGSP), 21 km from the middle of the area, began a volume at 18:47 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 |
|---|---|---|---|
| Jun 25, 2:50 PM EDT | TSTM WND DMG | 3 Ssw Boiling Springs, SC | PUBLIC REPORTED TREES SNAPPED OR UPROOTED ON TURNING LEAF CIRCLE |
| Jun 25, 2:55 PM EDT | HAIL 1.25 | 3 W Inman, SC | 1.25 INCH HAIL REPORTED AT NEW CUT ROAD AND GOWAN ROAD. |
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 3 storm reports 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 25, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.7 hours before the alert went out and 228 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
- 225 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1262 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
231
WUUS52 KGSP 251844
SVRGSP
SCC083-251930-
/O.NEW.KGSP.SV.W.0150.180625T1844Z-180625T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
244 PM EDT MON JUN 25 2018
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Northern Spartanburg County in Upstate South Carolina...
* Until 330 PM EDT.
* At 243 PM EDT, a severe thunderstorm was located 8 miles northwest
of Spartanburg, or near Inman, moving east at 15 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is expected. Expect wind
damage to trees and power lines.
* Locations impacted include...
Spartanburg, Boiling Springs SC, Wellford, Inman, Mayo, Lake Bowen,
USC Upstate, Cedar Springs, Roebuck and Lyman.
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 3500 8220 3513 8212 3508 8182 3486 8191
TIME...MOT...LOC 1843Z 286DEG 12KT 3502 8205
HAIL...1.25IN
WIND...60MPH
$$
Carroll2 follow-up statements
786
WWUS52 KGSP 251857
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
257 PM EDT MON JUN 25 2018
SCC083-251930-
/O.CON.KGSP.SV.W.0150.000000T0000Z-180625T1930Z/
Spartanburg SC-
257 PM EDT MON JUN 25 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHEASTERN SPARTANBURG COUNTY...
At 257 PM EDT, a severe thunderstorm was located 5 miles northwest of
Spartanburg, or near USC Upstate, moving east at 15 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is expected. Expect wind
damage to trees and power lines.
Locations impacted include...
Spartanburg, Boiling Springs SC, Mayo, USC Upstate, Cedar Springs,
Lake Bowen, Inman and Roebuck.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
LAT...LON 3500 8211 3512 8206 3508 8182 3486 8191
TIME...MOT...LOC 1857Z 286DEG 12KT 3501 8199
HAIL...1.25IN
WIND...60MPH
$$
Carroll833
WWUS52 KGSP 251911
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
311 PM EDT MON JUN 25 2018
SCC083-251920-
/O.CAN.KGSP.SV.W.0150.000000T0000Z-180625T1930Z/
Spartanburg SC-
311 PM EDT MON JUN 25 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SPARTANBURG
COUNTY IS CANCELLED...
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 has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
Upstate South Carolina.
LAT...LON 3500 8211 3512 8206 3508 8182 3486 8191
TIME...MOT...LOC 1908Z 286DEG 12KT 3500 8194
$$
LANEWhat 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 Jun 25, 2:42 PM EDT, 2 minutes earlier.
Area forecast discussion, Jun 25, 2:42 PM EDT, 2 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
242 PM EDT Mon Jun 25 2018
.SYNOPSIS...
Scattered thunderstorms will impact the area again this afternoon
and evening with damaging winds possible. A weak cold front will
drop through the forecast area tonight, bringing more seasonable
temperatures Tuesday. A passing trough will increase chances for
showers and storms Wednesday, with hot weather returning to end the
week.
&&
.NEAR TERM /THROUGH TUESDAY/...
As of 2pm EDT Monday. Round of thunderstorms, some possibly severe,
is just beginning this afternoon across the CWA. SBCAPE is good
with afternoon heating, though MLCAPE is more moderate. Windshear
is moderate as well, and activity is being assisted by propagation
of upstream system. Per CAMs, thunder is anticipated to continue
through the evening, with activity becoming focused more to the east
after 7pm and ending after 10pm. Upper flow is weak and westerly,
but a shortwave has developed in association with MCS propagating
into the area. As system passes by this evening, surface trough
moves further off shore and surface ridge becomes established with
high pressure building-up east of the Appalachians in a warm-season
wedge set-up. Sagging frontal boundary becomes a wedge front
Tuesday morning, bringing somewhat cooler air with low overcast
across the region. Despite cooler and cloudy conditions on Tuesday
due to wedge, enough instability developes in the afternoon for some
thunderstorms, though with less coverage and intensity than ones
today.
&&
.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
As of 120 pm Monday: Cyclonic mid/upper tropospheric flow will
quickly return to the forecast area early in the short term, before
the upper trough axis shifts to the East Coast late in the period.
Surface boundary will be sliding south and west across the area at
the start of the period, with short term model guidance depicting
strong low level convergence along the boundary, along with not-too-
shabby warm sector instability (and it is a June front, so
instability extends for at least a couple of hundred miles to the
"cool" side of the boundary). Meanwhile, with strong instability
still likely to develop Tue pm across the TN Valley, clusters of
convection will have plenty of opportunity to end up in our forecast
area through at least the first half or so of the period.
Slow-moving back door fronts this time of year are red flags for
potential flash flooding, as they provide ample opportunity for
training and/or anchored cells, and in fact the latest runs of the
GFS and NAM are signaling this potential in producing blobs of heavy
rainfall across the southern half of the area Tue evening.
Surface boundary will wash out and the air mass modify rather
quickly by mid-week, with strong instability likely developing
across the area Wed afternoon/evening, as the trough axis and
attendant front/surface trough are progressing across the TN Valley
and southern Appalachians. Another round of at least scattered
convection is therefore expected during this time, supporting 40-60
pops across the area. Increasing height gradient associated with
approaching trough will yield modest deep-layer shear, which should
be sufficient to allow some degree of convective organization posing
an enhanced threat of locally damaging winds. Increasing
anticyclonic flow aloft, along with lower theta-E area spilling into
the area should allow for a significant draw down in convective
activity Thu afternoon, although small chances for terrain-
influenced diurnal convection will still exist. Temps will be near
normal to begin the period, but return to several degrees above
climo by Thursday.
&&
.LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/...
As of 130 PM EDT Monday: Mid level high pressure will be centered
over the eastern states for the extended period leading to continued
hot conditions with mainly diurnally driven showers and
thunderstorms. The hottest day of this period looks to be Friday
when the mid level high is closest overhead. The combination of the
actual temperature and the humidity will lead to peak heat indices
near 105 in the Piedmont region. As the high moves off to the
northeast of the area Saturday through next Monday, it will be
slightly less hot with peak heat indices 100 to 105 outside the
mountains.
&&
.AVIATION /19Z MONDAY THROUGH SATURDAY/...
At KCLT and elsewhere: Thunderstorms with outflows approaching
severe limits are expected all areas this afternoon through the
evening as a complex of storms currently across KY/TN/AL/GA
propagates southeastward. Weak front currently oriented northwest-
southeast across CLT may help provide additional focus at times, but
front is diffuse, and severe storms are possible all areas. Thunder
moves west to east across the area, exiting after 2 or 3Z. Gradual
southwest movement of front will continue to veer winds at KCLT,
though weakness of pressure gradient will keep winds light to
variable many locations. Main trough associated with front moves
east, allowing a cold-air-damming surface high to bring
northeasterly winds and low-overcast into the area by early Tuesday
morning at KCLT, and other locations later. Some light rain/drizzle
is expected behind the wedge front; and by Tuesday afternoon, models
develop some CAPE again, despite CAD conditions, giving some chance
for thunderstorms.
Outlook: Through midweek, a slow-moving or stalled front will
enhance coverage of SHRA/TSRA, mostly in the afternoon/evening.
Patchy morning fog and/or low stratus may increase as well in
mountain valleys and/or locations with wet ground.
Confidence Table...
18-24Z 00-06Z 06-12Z 12-18Z
KCLT High 100% High 100% Med 63% High 85%
KGSP High 100% High 85% Med 63% High 80%
KAVL High 100% High 90% Med 63% High 85%
KHKY High 100% High 99% Low 56% Med 77%
KGMU High 100% High 100% Med 61% High 84%
KAND High 100% High 100% Med 69% High 92%
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...SW
NEAR TERM...WJM
SHORT TERM...JDL
LONG TERM...SW
AVIATION...WJMHazardous weather outlook, Jun 25, 1:09 PM EDT, 1 hour 35 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 109 PM EDT Mon Jun 25 2018 GAZ010-017-NCZ033-035>037-048>053-056>059-062>065-068-069-072- 501>510-261715- Rabun-Habersham-Avery-Alexander-Iredell-Davie-Madison-Yancey- Mitchell-Swain-Haywood-Buncombe-Catawba-Rowan-Graham- Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson- Cleveland-Lincoln-Cabarrus-Caldwell Mountains-Greater Caldwell- Burke Mountains-Greater Burke-McDowell Mountains-Eastern McDowell- Rutherford Mountains-Greater Rutherford-Polk Mountains-Eastern Polk- 109 PM EDT Mon Jun 25 2018 ...SEVERE THUNDERSTORM WATCH 218 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina and western North Carolina. .DAY ONE...This Afternoon and 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. Isolated to scattered severe thunderstorms are possible this afternoon and evening. Damaging winds will be the main threat, and large hail will also be possible. Dangerous cloud-to-ground lightning and brief heavy rain can be expected as well. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. ..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. ..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... None. GAZ018-026-028-029-NCZ070-071-082-SCZ001>014-019-261715- Stephens-Franklin-Hart-Elbert-Gaston-Mecklenburg-Union- Oconee Mountains-Pickens Mountains-Greenville Mountains- Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg- Cherokee-York-Anderson-Abbeville-Laurens-Chester-Greenwood- 109 PM EDT Mon Jun 25 2018 ...SEVERE THUNDERSTORM WATCH 218 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina and upstate South Carolina. .DAY ONE...This Afternoon and 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. Isolated to scattered severe thunderstorms are possible this afternoon and evening. Damaging winds will be the main threat, and large hail will also be possible. Dangerous cloud-to-ground lightning and brief heavy rain can be expected as well. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...Excessive heat possible. ..Thursday...Excessive heat possible. ..Friday...Excessive heat possible. ..Saturday...No hazardous weather is expected at this time. ..Sunday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None.
In the hours before
Local storm report, Jun 25, 11:59 AM EDT, 2 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1159 AM EDT MON JUN 25 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 PM TSTM WND DMG 3 E ASHEVILLE 35.59N 82.50W
06/24/2018 BUNCOMBE NC PUBLIC
NWS VOLUNTEER STUDENT RELAYED REPORT OF MULTIPLE TREES
BLOWN DOWN ALONG THE SWANNANOA RIVER IN EAST
ASHEVILLE.
&&Special weather statement, Jun 25, 2:17 PM EDT, 27 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
217 PM EDT MON JUN 25 2018
NCZ051-052-059-251845-
Haywood NC-Swain NC-Northern Jackson NC-
217 PM EDT MON JUN 25 2018
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN JACKSON...
NORTHEASTERN SWAIN AND NORTHWESTERN HAYWOOD COUNTIES UNTIL 245 PM
EDT...
At 217 PM EDT, Doppler radar was tracking a strong thunderstorm 16
miles south of Newport, or near Smoky Mountains-Big Creek, moving
east at 20 mph.
Locations to be impacted include...
Cherokee, Smoky Mountains-Newfound Gap, Smoky Mountains-Cataloochee,
Smoky Mountains-Big Creek, Smoky Mountains-Oconaluftee, Smoky
Mountains-Clingmans Dome, Smoky Mountains-Balsam Mountain, B.R.
Parkway-Smoky Mountains To Balsam Gap, Smoky Mountains-Deep Creek and
Waterville.
Wind gusts up to 45 mph and nickel 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.
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 North Carolina.
LAT...LON 3557 8349 3561 8345 3562 8340 3567 8334
3566 8330 3569 8326 3572 8325 3572 8320
3576 8316 3577 8311 3579 8308 3578 8299
3576 8295 3574 8295 3575 8292 3573 8291
3545 8330 3556 8353
TIME...MOT...LOC 1817Z 281DEG 16KT 3572 8316
CarrollLocal storm report, Jun 25, 2:36 PM EDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
236 PM EDT MON JUN 25 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM HAIL 3 W INMAN 35.05N 82.15W
06/25/2018 E1.00 INCH SPARTANBURG SC SOCIAL MEDIA
SOCIAL MEDIA REPORT OF QUARTER (1.00 IN) SIZE HAIL IN
THE INMAN AREA.
&&Special weather statement, Jun 25, 2:36 PM EDT, 8 minutes before
Special Weather Statement National Weather Service Greenville-Spartanburg SC 236 PM EDT MON JUN 25 2018 SCZ008-009-013-014-251900- York SC-Cherokee SC-Union SC-Chester SC- 236 PM EDT MON JUN 25 2018 ...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT NORTHWESTERN CHESTER...SOUTHWESTERN YORK...SOUTHEASTERN CHEROKEE AND NORTHEASTERN UNION COUNTIES UNTIL 300 PM EDT... At 236 PM EDT, Doppler radar was tracking a strong thunderstorm with intense lightning 13 miles northeast of Union, or 7 miles northwest of Lockhart, moving southeast at 15 mph. Locations to be impacted include... Lockhart, Lowrys, Adamsburg, Bullock Creek and Saratt. In addition to intense lightning, wind gusts up to 55 mph and nickel 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 Upstate South Carolina. LAT...LON 3488 8166 3500 8150 3483 8122 3464 8145 TIME...MOT...LOC 1836Z 315DEG 14KT 3489 8153 Carroll
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 2:05 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 40 min |
| Jun 25, 2:36 PM EDT | Special Weather Statement | GSP | Union | 24 min |
| Jun 25, 2:47 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Chester, Union, York | 43 min |
| Jun 25, 3:28 PM EDT | Special Weather Statement | GSP | York | 62 min |
| Jun 25, 3:45 PM EDT | Special Weather Statement | GSP | Chester | 30 min |
| Jun 25, 3:50 PM EDT | Severe Thunderstorm Warning | GSP | Chester | 25 min |
| Jun 25, 4:16 PM EDT | Severe Thunderstorm Warning | GSP | Chester | 12 min |
| Jun 25, 4:34 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 41 min |
| Jun 25, 5:09 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 66 min |
| Jun 25, 5:13 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville, Oconee, Pickens | 47 min |
| Jun 25, 5:45 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Greenville, Spartanburg | 45 min |
| Jun 25, 5:59 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson, Greenville, Laurens, Oconee, Pickens and 1 more | 46 min |
| Jun 25, 6:22 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Greenville, Spartanburg, Union, York | 38 min |
| Jun 25, 6:30 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson, Greenville, Greenwood, Laurens, Spartanburg and 1 more | 45 min |
| Jun 25, 6:58 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Cherokee, Chester, Greenwood, Laurens, Spartanburg and 2 more | 62 min |
Nearby
Severe Thunderstorm Warnings in South 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.