Alert archive / South Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 14, NWS Greenville-Spartanburg, SC

July 21, 2016Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 21, 2016, 7:27 PM EDT for Spartanburg County, South Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 21, 2016, 7:27 PM EDT (23:27 UTC)
Expired
Jul 21, 2016, 10:30 PM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

County Spartanburg County, SC

The radar

The Greer radar (KGSP), 30 km from the middle of the area, began a volume at 23:29 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood 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, 11.5 hours before the alert went out and 219 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 2016-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 590 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.193958Sfc1 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
590 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

566 
WGUS52 KGSP 212327
FFWGSP
SCC083-220230-
/O.NEW.KGSP.FF.W.0014.160721T2327Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
727 PM EDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 1030 PM EDT

* AT 725 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA.  UP TO THREE AND A HALF INCHES
  OF RAIN HAVE FALLEN OVER THE LAST HOUR.  FLASH FLOODING IS LIKELY
  OCCURRING OR WILL BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BOILING SPRINGS SC...MAYO...CHESNEE...USC UPSTATE AND SPARTANBURG. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN VEHICLES. DO NOT ATTEMPT TO CROSS
WATER-COVERED ROADWAYS...BRIDGES...OR LOW-LEVEL CROSSINGS. ONLY A FEW
INCHES OF RAPIDLY FLOWING WATER CAN CARRY AWAY YOUR VEHICLE. IT IS
NOT WORTH THE RISK. PLEASE TURN AROUND...DON'T DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS...AND OTHER LOW-LYING AREAS ARE SUBJECT TO FLOODING.

WHEN IT IS SAFE TO DO SO...PLEASE REPORT FLOOD WATERS OR LANDSLIDES
FLOWING OVER ROADS OR THREATENING PROPERTY TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1...800...2 6 7...8 1 0 1...BY
POSTING ON OUR FACEBOOK PAGE...OR VIA TWITTER USING HASHTAG NWSGSP.
YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND THE SPECIFIC LOCATION
WHERE IT OCCURRED...INCLUDING ROADWAYS...NEARBY CROSS
STREETS...STREAM NAMES AND OTHER LANDMARKS.

&&

LAT...LON 3496 8210 3505 8206 3519 8194 3518 8188
      3511 8184 3496 8191

$$

CDG
2 follow-up statements
761 
WGUS72 KGSP 220012
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
812 PM EDT THU JUL 21 2016

SCC083-220230-
/O.CON.KGSP.FF.W.0014.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SPARTANBURG SC-
812 PM EDT THU JUL 21 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
NORTH CENTRAL SPARTANBURG COUNTY...

AT 810 PM EDT...DOPPLER RADAR INDICATED HEAVY RAIN WAS MOVING OUT OF
THE WARNED AREA.  NEARLY 3 TO 4 INCHES OF RAIN HAS FALLEN OVER THE
LAST TWO HOURS WITH AN ADDITIONAL QUARTER TO HALF INCH POSSIBLE OVER
THE NEXT HOUR.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOILING SPRINGS SC...MAYO...CHESNEE...USC UPSTATE AND SPARTANBURG. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN VEHICLES. DO NOT ATTEMPT TO CROSS
WATER-COVERED ROADWAYS...BRIDGES...OR LOW-LEVEL CROSSINGS. ONLY A FEW
INCHES OF RAPIDLY FLOWING WATER CAN CARRY AWAY YOUR VEHICLE. IT IS
NOT WORTH THE RISK. PLEASE TURN AROUND...DON'T DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS...AND OTHER LOW-LYING AREAS ARE SUBJECT TO FLOODING.

WHEN IT IS SAFE TO DO SO...PLEASE REPORT FLOOD WATERS OR LANDSLIDES
FLOWING OVER ROADS OR THREATENING PROPERTY TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1...800...2 6 7...8 1 0 1...BY
POSTING ON OUR FACEBOOK PAGE...OR VIA TWITTER USING HASHTAG NWSGSP.
YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND THE SPECIFIC LOCATION
WHERE IT OCCURRED...INCLUDING ROADWAYS...NEARBY CROSS
STREETS...STREAM NAMES AND OTHER LANDMARKS.

&&

LAT...LON 3496 8210 3505 8206 3519 8194 3518 8188
      3511 8184 3496 8191

$$

CDG
546 
WGUS72 KGSP 220125
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
925 PM EDT THU JUL 21 2016

SCC083-220135-
/O.CAN.KGSP.FF.W.0014.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SPARTANBURG SC-
925 PM EDT THU JUL 21 2016

...THE FLASH FLOOD WARNING FOR NORTH CENTRAL SPARTANBURG COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOOD WATERS HAVE RECEDED. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES.

LAT...LON 3496 8210 3505 8206 3519 8194 3518 8188
      3511 8184 3496 8191

$$

CDG

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jul 21, 4:22 PM EDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jul 21, 4:22 PM EDT, 3 hours 5 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
422 PM EDT THU JUL 21 2016

.SYNOPSIS...
Bermuda high pressure and upper level ridging will remain in control
of the weather over the next few days. This will result in well
above normal temperatures...before a weak cold front pushes in from
the north early next week.

&&

.NEAR TERM /THROUGH FRIDAY/...
As of 420 PM: Convection becoming sparse across the Piedmont, but
good coverage continuing from the Blue Ridge south to the Upper
Savannah River Valley. Expect this activity to linger through the
afternoon then taper off during the early evening. With very high
DCAPE values across the area, cannot rule out an isolated severe
thunderstorm until the convection dissipates.

Otherwise...a broad upper ridge will remain centered over the
southern plains through Friday while a trough axis lingers just off
the Atlantic coast. Patchy fog development is possible wherever rain
falls and also the lower mountain river valleys - particularly from
the French Broad Valley and valleys farther southwest.

A little less in the way of upper energy moving southward east of
the ridge into the Carolinas is expected on Friday. Convection will
develop later in the day and primarily over the higher ridges mid
afternoon - with some survival into the adjacent foothills or
perhaps piedmont toward evening. Better insolation, weak downsloping
flow, and less moisture in profiles should lead to higher temps
Friday afternoon than Thursday. More dewpoint mixout is possible as
well, so heat index values should be capped around 100 in the
hottest areas.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
At 130 PM Thursday: On Friday night and upper ridge will build east
front the plains across the southern Appalachians, completely
covering our area by late Sunday. Before this ridge overspreads the
area, weak lobes of vorticity may move southeast over the mountains
on the west side of a coastal trough. The models show modest
instability and weak shear each day, supportive of convection, but
not organized storms. Weak steering flow may support locally heavy
rainfall however, especially if cell can train over the same areas.
Temperatures will warm from around 3 degrees above normal to around
6 degrees above normal. Lingering moisture will allow apparent
temperatures to approach 102 degrees in the upper Savannah River
Valley on Friday, and 100 to 105 degrees from the foothills to the
Piedmont on Saturday.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As of 115 PM Thursday...Not much change needed to the going fcst.
Strong ulvl ridging will continue into Mon then slowly break down as
a couple H5 s/w trofs swing across the Glakes region. This will
bring a sfc front into the fcst area late Mon or early Tue. With
little flow aloft this front will become stationary and reinforced
somewhat on Thu as another weak bndry settles in from the north. As
far as the sensible wx goes...sct to num afternoon showers and
thunderstorms will be the norm...esp across the higher terrain...as
enhanced llvl lift provides broad focusing in a moderately unstable
yet low sheared environment. Max temps were brought down a degree or
two most locale Mon with increasing cloud cover possible...however
heat index values shud still reach adv levels across the srn half of
the CWFA. With weakening in the upper heights and lessening deep
layered subs...max temps will return closer to normal levels Tue
through the period.

&&

.AVIATION /21Z THURSDAY THROUGH TUESDAY/...
At KCLT: Cannot rule out another cell affecting the airfield this
afternoon, but chance too low to include. Will AMD if any cells do
approach. Will keep VCSH to cover. Will hold onto continued light
southerly flow. VFR conditions will then continue overnight through
Friday with light SE to SW surface winds. Profiles will be a bit
drier on Friday and no convection will be mentioned through 18Z.

Elsewhere: Scattered thunderstorms will threaten the mountain and
foothill airfields through the afternoon hours, with chances best
around KAVL and KAND. Will hold onto VCTS at all sites going forward
through at least 22Z. Expect light southerly winds throughout,
except turning NW at KAVL overnight. Fog will be possible overnight
at any location where rain falls late today, but with chances best
in the mountain river valleys. The MOS is hitting KAVL especially
hard, but it has not performed well of late. Will still feature IFR
fog after 09Z but not hit dense fog hard yet. Will keep locations
dry through 18Z Friday with a later start to convection expected.
Surface winds will become more S to SW but remain less than 10 kt
throughout, with persistent NW flow at KAVL.

Outlook: Expect typical midsummer weather with scattered afternoon
and evening showers and thunderstorms through the weekend. Morning
fog and low stratus will be possible each day in the mountain
valleys and also in locations that receive heavy rainfall the
preceding afternoon/evening.

Confidence Table...

            20-02Z        02-08Z        08-14Z        14-18Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High 100%     High 100%     High 100%     High 100%
KAVL       High 100%     High 100%     High  86%     High 100%
KHKY       High 100%     High 100%     Med   74%     High 100%
KGMU       High 100%     High 100%     High 100%     High 100%
KAND       High 100%     High 100%     High  83%     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 SATURDAY (07-23)

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAVL      95 1983     69 1974     71 2015     50 1966
                1952        1938        1999
                1934                    1983
   KCLT     101 1987     73 1880     78 1991     56 2007
                1952
   KGSP     102 1952     74 1974     79 1934     59 1966
                                                    1947

RECORDS FOR SUNDAY (07-24)

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAVL      96 1983     68 1985     71 1934     52 1966
                                                    1895
   KCLT     100 1983     73 1938     78 2010     59 1947
                1952                    1883
   KGSP     101 1952     70 1985     79 2010     59 1904

RECORDS FOR MONDAY (07-25)

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAVL      92 2010     68 2000     70 2012     51 1895
                2005                    2011
                1987                    2010
   KCLT     101 2010     69 2000     79 2010     62 1947
   KGSP     100 1995     72 2000     77 2010     57 1911

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

SYNOPSIS...SBK
NEAR TERM...HG/RWH
SHORT TERM...JAT
LONG TERM...SBK
AVIATION...HG/RWH
CLIMATE...
Hazardous weather outlook, Jul 21, 3:13 PM EDT, 4 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
313 PM EDT THU JUL 21 2016

GAZ010-017-NCZ033-048>053-058-059-062>065-501-503-505-507-509-
SCZ001>003-221915-
RABUN-HABERSHAM-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-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
313 PM EDT THU JUL 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...WESTERN
NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN
THIS AFTERNOON AND EVENING...WITH THE HIGHEST COVERAGE EXPECTED IN
THE MOUNTAINS. THE MAIN THREATS WILL BE FREQUENT CLOUD-TO-GROUND
LIGHTNING...LOCALLY HEAVY RAINFALL...AND GUSTY WINDS. A FEW STORMS
MAY BE STRONG ENOUGH TO PRODUCE DAMAGING WIND GUSTS.

.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.

GAZ018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-506-508-
510-SCZ004>014-019-221915-
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-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-CHESTER-GREENWOOD-
313 PM EDT THU JUL 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN
THIS AFTERNOON AND EVENING...WITH THE HIGHEST COVERAGE EXPECTED IN
THE MOUNTAINS. THE MAIN THREATS WILL BE FREQUENT CLOUD-TO-GROUND
LIGHTNING...LOCALLY HEAVY RAINFALL...AND GUSTY WINDS. A FEW STORMS
MAY BE STRONG ENOUGH TO PRODUCE DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...EXCESSIVE HEAT POSSIBLE. HEAT INDEX VALUES ARE
FORECAST TO RANGE FROM NEAR 100 DEGREES TO NEAR 108 DEGREES EACH
AFTERNOON FROM SATURDAY THROUGH MONDAY. THE HIGHEST HEAT INDEX
VALUES WILL BE IN THE PIEDMONT.
..SUNDAY...EXCESSIVE HEAT POSSIBLE.
..MONDAY...EXCESSIVE HEAT POSSIBLE.
..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.

07

In the hours before

Special weather statement, Jul 21, 6:32 PM EDT, 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
632 PM EDT THU JUL 21 2016

SCZ007-212315-
SPARTANBURG SC-
632 PM EDT THU JUL 21 2016

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL SPARTANBURG COUNTY UNTIL
715 PM EDT...

AT 632 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
SPARTANBURG. THIS STORM WAS NEARLY STATIONARY.

LOCATIONS TO BE IMPACTED INCLUDE...
SPARTANBURG AND USC UPSTATE.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH 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. DO NOT DRIVE ACROSS
FLOODED ROADS.

&&

LAT...LON 3495 8192 3489 8198 3493 8209 3502 8199
TIME...MOT...LOC 2232Z 131DEG 1KT 3494 8198

CDG
Special weather statement, Jul 21, 6:34 PM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
634 PM EDT THU JUL 21 2016

SCZ007-212315-
SPARTANBURG SC-
634 PM EDT THU JUL 21 2016

...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL SPARTANBURG COUNTY
UNTIL 715 PM EDT...

AT 634 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11
MILES NORTH OF SPARTANBURG...OR NEAR MAYO. THIS STORM WAS NEARLY
STATIONARY.

LOCATIONS TO BE IMPACTED INCLUDE...
MAYO AND CHESNEE.

WIND GUSTS UP TO 40 MPH 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. DO NOT DRIVE ACROSS
FLOODED ROADS.

&&

LAT...LON 3508 8203 3519 8192 3519 8190 3514 8185
      3510 8183 3510 8184 3504 8189
TIME...MOT...LOC 2234Z 131DEG 1KT 3511 8191

CDG
Special weather statement, Jul 21, 6:37 PM EDT, 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
637 PM EDT THU JUL 21 2016

NCZ508-212315-
GREATER RUTHERFORD NC-
637 PM EDT THU JUL 21 2016

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN RUTHERFORD COUNTY
UNTIL 715 PM EDT...

AT 637 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
FOREST CITY...OR NEAR ELLENBORO. THIS STORM WAS NEARLY STATIONARY.

LOCATIONS TO BE IMPACTED INCLUDE...
FOREST CITY...ELLENBORO...BOSTIC...CAROLEEN...HENRIETTA...HARRIS AND
CLIFFSIDE.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE IN THESE
AREAS.

LAT...LON 3538 8181 3530 8172 3522 8180 3527 8192
TIME...MOT...LOC 2237Z 131DEG 1KT 3530 8181

CDG
Local storm report, Jul 21, 6:39 PM EDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
639 PM EDT THU JUL 21 2016

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

0315 PM     TSTM WND DMG     4 S FLAT ROCK           35.22N 82.44W
07/21/2016                   HENDERSON          NC   911 CALL CENTER

            NUMEROUS TREES AND POWER LINES DOWN ON GREEN RIVER RD.
            TIME ESTIMATED FROM RADAR.

&&

LVISIN
Special weather statement, Jul 21, 6:43 PM EDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
643 PM EDT THU JUL 21 2016

NCZ068-212315-
CLEVELAND NC-
643 PM EDT THU JUL 21 2016

...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT NORTH
CENTRAL CLEVELAND COUNTY UNTIL 715 PM EDT...

AT 643 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
WITH INTENSE LIGHTNING 14 MILES NORTH OF SHELBY...OR NEAR CASAR.
THIS STORM WAS NEARLY STATIONARY.

LOCATIONS TO BE IMPACTED INCLUDE...
BELWOOD AND CASAR.

IN ADDITION TO INTENSE LIGHTNING...WIND GUSTS UP TO 40 MPH 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.

&&

LAT...LON 3554 8157 3548 8151 3541 8158 3550 8167
TIME...MOT...LOC 2243Z 049DEG 1KT 3549 8158

CDG
Special weather statement, Jul 21, 7:00 PM EDT, 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
700 PM EDT THU JUL 21 2016

SCZ007-212330-
SPARTANBURG SC-
700 PM EDT THU JUL 21 2016

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN SPARTANBURG COUNTY
UNTIL 730 PM EDT...

AT 659 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES WEST OF SPARTANBURG...OR NEAR WELLFORD. THIS STORM WAS NEARLY
STATIONARY.

LOCATIONS TO BE IMPACTED INCLUDE... LYMAN...WELLFORD...INMAN...USC
UPSTATE...DUNCAN AND BOILING SPRINGS SC.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH 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. DO NOT DRIVE ACROSS
FLOODED ROADS.

&&

LAT...LON 3500 8195 3491 8205 3497 8221 3510 8205
TIME...MOT...LOC 2259Z 143DEG 2KT 3497 8206

CDG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:43 PM EDTSpecial Weather StatementGSPSpartanburg47 min
Jul 20, 9:01 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg44 min
Jul 20, 9:16 PM EDTSpecial Weather StatementGSPGreenwood29 min
Jul 21, 4:16 AM EDTSpecial Weather StatementGSPLaurens29 min
Jul 21, 5:50 AM EDTAreal Flood AdvisoryGSPLaurens115 min
Jul 21, 1:49 PM EDTSpecial Weather StatementGSPOconee26 min
Jul 21, 1:54 PM EDTSpecial Weather StatementGSPGreenville36 min
Jul 21, 2:03 PM EDTSevere Thunderstorm WarningGSPGreenville, Pickens42 min
Jul 21, 3:01 PM EDTSevere Thunderstorm WarningGSPGreenville30 min
Jul 21, 3:55 PM EDTSpecial Weather StatementGSPAnderson50 min
Jul 21, 4:06 PM EDTSevere Thunderstorm WarningGSPAnderson24 min
Jul 21, 4:22 PM EDTSpecial Weather StatementGSPAbbeville38 min
Jul 21, 4:57 PM EDTSpecial Weather StatementGSPAbbeville48 min
Jul 21, 5:28 PM EDTSpecial Weather StatementGSPGreenwood32 min
Jul 21, 6:32 PM EDTSpecial Weather StatementGSPSpartanburg43 min
Jul 21, 6:34 PM EDTSpecial Weather StatementGSPSpartanburg41 min
Jul 21, 7:00 PM EDTSpecial Weather StatementGSPSpartanburg30 min
Jul 21, 7:07 PM EDTAreal Flood AdvisoryGSPSpartanburg113 min
Jul 21, 7:31 PM EDTSevere Thunderstorm WarningGSPSpartanburg29 min
Jul 21, 7:54 PM EDTSpecial Weather StatementGSPGreenville51 min

Nearby

Flash Flood Warnings in South Carolina, 2016Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.