Alert archive / North Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 61, NWS Greenville-Spartanburg, SC

May 21, 2016Cabarrus County, Mecklenburg County, Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 21, 2016, 6:56 PM EDT for Cabarrus County, Mecklenburg County, Union County, North Carolina. It was in force for 49 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
May 21, 2016, 6:56 PM EDT (22:56 UTC)
Expired
May 21, 2016, 7:45 PM EDT
In force
49 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cabarrus County, NC, Mecklenburg County, NC, Union County, NC

The radar

The Greer radar (KGSP), 130 km from the middle of the area, began a volume at 22:56 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
May 21, 7:05 PM EDTTSTM WND DMG3 Nw Charlotte, NC2 TREES DOWN NEAR THE INTERSECTION OF HOVIS RD AND SOUTH HOSKINS RD.
May 21, 7:10 PM EDTTSTM WND DMG1 Nw Charlotte, NCA LARGE TREE REPORTED DOWN ON THE EXIT RAMP OF I-77N AND WEST TRADE ST.

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 2 storm reports to this severe thunderstorm warning; the first came 9 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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.9 hours before the alert went out and 124 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 2016-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2016-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
636 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

292 
WUUS52 KGSP 212256
SVRGSP
NCC025-119-179-212345-
/O.NEW.KGSP.SV.W.0061.160521T2256Z-160521T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
656 PM EDT SAT MAY 21 2016

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  NORTH CENTRAL UNION COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  SOUTHWESTERN CABARRUS COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 745 PM EDT

* AT 656 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES
  SOUTHWEST OF HUNTERSVILLE...OR 4 MILES NORTH OF PAW CREEK...MOVING
  SOUTHEAST AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  UPTOWN CHARLOTTE...EAST CHARLOTTE...NORTHEAST CHARLOTTE...
  NORTHWEST CHARLOTTE...MINT HILL...HARRISBURG...HEMBY BRIDGE...
  HIDDEN VALLEY...FREEDOM PARK AND PAW CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SCATTERED TREES AND POWER LINES WILL BE BLOWN DOWN IN THE WARNED
AREA. SEEK SHELTER INSIDE AN INTERIOR ROOM.

THIS STORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL. FLOODING OF
DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. SMALL STREAMS WILL
RISE RAPIDLY. DO NOT DRIVE THROUGH AREAS WHERE WATER IS FLOWING OVER
THE ROAD.

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 3507 8060 3526 8101 3530 8100 3533 8098
      3534 8099 3535 8097 3535 8096 3536 8092
      3538 8096 3536 8097 3537 8099 3538 8098
      3539 8095 3543 8096 3532 8047
TIME...MOT...LOC 2256Z 292DEG 21KT 3534 8095 

HAIL...1.00IN
WIND...60MPH
 
$$

HG
2 follow-up statements
376 
WWUS52 KGSP 212318
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
718 PM EDT SAT MAY 21 2016

NCC025-119-179-212345-
/O.CON.KGSP.SV.W.0061.000000T0000Z-160521T2345Z/
MECKLENBURG NC-UNION NC-CABARRUS NC-
718 PM EDT SAT MAY 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR CENTRAL MECKLENBURG...NORTH CENTRAL UNION AND SOUTHWESTERN
CABARRUS COUNTIES...

AT 717 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR UPTOWN
CHARLOTTE...OR NEAR NORTHWEST CHARLOTTE...MOVING SOUTHEAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
UPTOWN CHARLOTTE...EAST CHARLOTTE...NORTHEAST CHARLOTTE...NORTHWEST
CHARLOTTE...MINT HILL...HARRISBURG...HEMBY BRIDGE...HIDDEN VALLEY...
FREEDOM PARK AND PAW CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SCATTERED TREES AND POWER LINES WILL BE BLOWN DOWN IN THE WARNED
AREA. SEEK SHELTER INSIDE AN INTERIOR ROOM.

THIS STORM IS PRODUCING FREQUENT AND INTENSE LIGHTNING. TURN OFF
ELECTRICAL APPLIANCES. DO NOT USE CORDED TELEPHONES. DO NOT TAKE A
BATH OR SHOWER.

THIS STORMS IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL. FLOODING OF
DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. SMALL STREAMS WILL
RISE RAPIDLY. DO NOT DRIVE THROUGH AREAS WHERE WATER IS FLOWING OVER
THE ROAD.

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 3527 8101 3539 8076 3532 8047 3507 8060
      3526 8101
TIME...MOT...LOC 2317Z 300DEG 16KT 3526 8086 

HAIL...1.00IN
WIND...60MPH
 
$$

HG
083 
WWUS52 KGSP 212338
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
738 PM EDT SAT MAY 21 2016

NCC025-119-179-212347-
/O.EXP.KGSP.SV.W.0061.000000T0000Z-160521T2345Z/
MECKLENBURG NC-UNION NC-CABARRUS NC-
738 PM EDT SAT MAY 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MECKLENBURG...NORTH
CENTRAL UNION AND SOUTHWESTERN CABARRUS COUNTIES WILL EXPIRE AT 745
PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS AND THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER, HEAVY
RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM THROUGH 8 PM.

LAT...LON 3527 8101 3539 8076 3532 8047 3507 8060
      3526 8101
TIME...MOT...LOC 2334Z 292DEG 21KT 3526 8086 

$$

HG

What 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 May 21, 5:46 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, May 21, 5:46 PM EDT, 1 hour 10 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
546 PM EDT SAT MAY 21 2016

.SYNOPSIS...
Dry high pressure builds into our region from the Mississippi and
Ohio valleys from Sunday into the start of the week as low pressure
lingers over the mid Atlantic.  A moist southerly flow develops by
mid week and continues into the weekend.

&&

.NEAR TERM /THROUGH SUNDAY/...
As of 530 PM...Only minor tweaks were made to the last update. The
latest radar imagery shows a broken line of showers and a couple of
sub-severe tstms, extending from the Triad to the southern NC
foothills. This line should track east across the I-77 corridor and
Charlotte metro area early this evening. The latest HRRR and 18z NAM
agree that the activity within this line will struggle to maintain
strength, despite over 1000 J/kg of CAPE and 35-40 kt of bulk shear.
So I expect cloud-to-ground lightning and brief gusty winds to
remain the primary threats. A couple cells in the Yadkin/Davie areas
produced some small hail. Outside this line, just a few isolated
showers can be seen. Later this evening...only a few cells will
linger along/near the TN border, as the rest of the activity wanes.
Lows tonight are forecast to range in the low 50s across the mtns to
upper 50s east.

Sunday...High pressure will build in across the mtns...as the high
remains centered over the Mississippi River Valley. However...H5
closed low centered over VA will continue to support generally moist
NW flow across the west facing mtn slopes. Clouds and iso showers
will remain in the forecast through Sunday. Elsewhere...dry
conditions with gusty NW winds will be featured in the forecast.
High temps should range from upper 60s within the mtn valleys to mid
to upper 70s across the upper Savannah River Valley.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/...
As of 200 PM Saturday...the early part of next week will be
dominated by an upper low that should move off the Mid-Atlantic
coast Sunday night and Monday, then slowly rotate up to the New
England Coast on Tuesday. The western Carolinas will be under the N
flow part of the circulation into Tuesday, so other than some
lingering showers on the TN border Sunday evening, it should be dry.
The plume of better moisture rotating around the upper low is
expected to be just east of the fcst area on Monday. A few showers
may nick part of the NW Piedmont on Monday as some of the lingering
instability underneath the mid-level cool pool will be close by.
After that, think it should be dry as the low moves away Tuesday and
a flattening upper ridge builds in from the west Tuesday night.
Temps should moderate through the period...back to just below normal
on Monday...and then a few degrees above normal on Tuesday.

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
As of 235 PM Saturday, 500mb flow has a ridge axis from Mobile Al
to KY on Wednesday with surface high pressure shifting to the east
and off the east coast.  Moisture will be increasing slowly from the
west on south to southwesterly low level flow. Instability is rather
low Wed PM with 600 CAPE near Fontana Lake on the GFS model and
lower on ECMWF.  Moisture and instability will increase Thursday
into Friday as the much higher CAPEs remain near and west of
Mississippi River.  CAPE of 1000 to 1500 across our area Thursday PM
and even a bit higher Friday PM on GFS. Best CAPE on ECMWF on Thurs
PM with around 1600 late day.  Not much change in grids from
previous forecast. Low level flow becomes more SE going into next
weekend as ridge will be centered off the mid Atlantic Coast. This
would introduce an upslope component.

Max Temps a few degrees above normal with Highs in the 80s for all
elevations below 2500 feet. Mins mostly in the 60s.

&&

.AVIATION /22Z SATURDAY THROUGH THURSDAY/...
At KCLT and elsewhere east of the mtns...at 1730z...low ceilings
across the foothills and Piedmont were finally showing signs of
dissipating. However...ceiling may linger for another or two before
becoming VFR across KCLT...KGSP...KGMU. Showers have developed along
the east facing slopes...perfectly timed and located to latest
forecast. This band should strengthen into thunderstorms as steer
flow transports the storms east. I will forecast TSRA at KHKY
between 19z-21z and KCLT 20z-22z. Elsewhere I will highlight with
VCSH or VCTS. Winds will favor a SW wind during the afternoon...then
NW with the passage of the boundary. VFR with gusty NW winds during
the daylight hours on Sunday.

KAVL...convection will remain close to the terminal this
afternoon...then dry out. Wet soil will favor a period of IFR late
tonight...I will highlight with a TEMPO from 5z-10z. Winds will
strengthen from 340 degrees and gusts to 25 kts.

Outlook: Conditions should gradually dry out Sunday and Monday. AFTN
showers and TSTM chances may return on Wednesday.

Confidence Table...

            21-03z        03-09Z        09-15Z        15-18Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High 100%     High 100%     High 100%     High 100%
KAVL       High 100%     High  96%     Med   63%     High 100%
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 schedule 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...DEO
NEAR TERM...ARK/NED
SHORT TERM...PM
LONG TERM...DEO
AVIATION...NED
Hazardous weather outlook, May 21, 2:11 PM EDT, 4 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
211 PM EDT SAT MAY 21 2016

NCZ068-501>510-SCZ003-006>008-012-013-221815-
CLEVELAND-CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-
GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
RUTHERFORD MOUNTAINS-GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-
GREENVILLE MOUNTAINS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-LAURENS-
UNION-
211 PM EDT SAT MAY 21 2016

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A BAND OF SCATTERED THUNDERSTORMS WILL PUSH ACROSS THE FOOTHILLS
INTO THE PIEDMONT DURING THE MID TO LATE AFTERNOON.  THESE STORMS
WILL PRODUCE CLOUD TO GROUND LIGHTNING...HEAVY DOWNPOURS...AND
GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

..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.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ010-017-018-026-028-029-NCZ033-048>053-058-059-062>065-SCZ001-002-
004-005-010-011-019-221815-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-MADISON-YANCEY-
MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-
SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREATER OCONEE-GREATER PICKENS-ANDERSON-ABBEVILLE-
GREENWOOD-
211 PM EDT SAT MAY 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 THUNDERSTORMS ARE EXPECTED ACROSS THE AREA
THIS AFTERNOON AND EVENING. THE MAIN THREAT FROM THESE STORMS WILL
BE GUSTY WINDS AND CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

..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.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ035>037-056-057-069>072-082-SCZ009-014-221815-
ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-LINCOLN-GASTON-MECKLENBURG-
CABARRUS-UNION-YORK-CHESTER-
211 PM EDT SAT MAY 21 2016

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A LINE OF SCATTERED TO NUMEROUS THUNDERSTORMS WILL MOVE FROM THE
NORTH CAROLINA FOOTHILLS ACROSS THE INTERSTATE 77
CORRIDOR...INCLUDING THE CHARLOTTE METRO AREA DURING THE MID TO
LATE AFTERNOON. THESE STORMS WILL PRODUCE CLOUD TO GROUND
LIGHTNING...HEAVY DOWNPOURS...AND GUSTY WINDS. THESE STORMS WILL
LIKELY PEAK IN COVERAGE ACROSS THE CHARLOTTE METRO AREA BETWEEN 4
PM TO 530 PM. A FEW OF DAMAGING WIND EVENTS ARE POSSIBLE WITH THE
PASSAGE OF THESE STORMS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

..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.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NED

In the hours before

Special weather statement, May 21, 5:23 PM EDT, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
523 PM EDT SAT MAY 21 2016

NCZ037-212200-
DAVIE NC-
523 PM EDT SAT MAY 21 2016

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF DAVIE COUNTY UNTIL
600 PM EDT...

AT 522 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6
MILES SOUTH OF YADKINVILLE...OR NEAR COURTNEY...MOVING SOUTHEAST AT
25 MPH.

LOCATIONS TO BE IMPACTED INCLUDE...
MOCKSVILLE...BERMUDA RUN...FORK CHURCH...SHEFFIELD...ADVANCE AND
FARMINGTON.

DIME 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.

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 3588 8042 3586 8039 3584 8039 3585 8042
      3583 8043 3583 8046 3584 8048 3581 8047
      3579 8048 3577 8045 3575 8046 3597 8070
      3605 8069 3604 8049 3606 8046 3601 8042
      3599 8042 3596 8038 3589 8037
TIME...MOT...LOC 2122Z 314DEG 23KT 3604 8062

HG
Special weather statement, May 21, 5:37 PM EDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
537 PM EDT SAT MAY 21 2016

NCZ036-056-069-212200-
IREDELL NC-CATAWBA NC-LINCOLN NC-
537 PM EDT SAT MAY 21 2016

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF EASTERN CATAWBA...
SOUTHERN IREDELL AND NORTHEASTERN LINCOLN COUNTIES UNTIL 600 PM
EDT...

AT 536 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5
MILES EAST OF NEWTON...OR NEAR CATAWBA...MOVING EAST AT 25 MPH.

LOCATIONS TO BE IMPACTED INCLUDE...
NEWTON...MOORESVILLE...WESTPORT...TROUTMAN...CLAREMONT...CATAWBA...LA
KE NORMAN...LAKE NORMAN STATE PARK...DENVER AND CONOVER.

PEA SIZE HAIL AND 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 3551 8080 3551 8091 3549 8094 3548 8095
      3561 8123 3577 8115 3569 8077 3567 8077
      3561 8075
TIME...MOT...LOC 2136Z 292DEG 23KT 3567 8111

HG
Special weather statement, May 21, 5:57 PM EDT, 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
557 PM EDT SAT MAY 21 2016

NCZ036-056-069-071-212230-
IREDELL NC-CATAWBA NC-MECKLENBURG NC-LINCOLN NC-
557 PM EDT SAT MAY 21 2016

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTH CENTRAL
MECKLENBURG...SOUTHEASTERN CATAWBA...SOUTHEASTERN IREDELL AND
NORTHEASTERN LINCOLN COUNTIES UNTIL 630 PM EDT...

AT 556 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 13
MILES SOUTHEAST OF NEWTON...OR NEAR LAKE NORMAN...MOVING SOUTHEAST AT
25 MPH.

LOCATIONS TO BE IMPACTED INCLUDE...
HUNTERSVILLE...CORNELIUS...MOORESVILLE...DAVIDSON...WESTPORT...LAKE
NORMAN...LAKE NORMAN STATE PARK...DENVER...NORTHEAST CHARLOTTE AND
SHERRILLS FORD.

HALF INCH HAIL AND 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 3551 8078 3549 8079 3542 8075 3540 8077
      3539 8075 3531 8082 3556 8113 3570 8100
      3558 8075 3551 8074
TIME...MOT...LOC 2156Z 307DEG 22KT 3559 8100

HG
Special weather statement, May 21, 6:05 PM EDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
605 PM EDT SAT MAY 21 2016

NCZ069-070-212230-
GASTON NC-LINCOLN NC-
605 PM EDT SAT MAY 21 2016

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF EASTERN GASTON AND
EASTERN LINCOLN COUNTIES UNTIL 630 PM EDT...

AT 604 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
LINCOLNTON...MOVING SOUTHEAST AT 25 MPH.

LOCATIONS TO BE IMPACTED INCLUDE... LINCOLNTON...GASTONIA...MT
HOLLY...BELMONT...DALLAS...STANLEY...CRAMERTON... LOWELL...RANLO AND
HIGH SHOALS.

PEA SIZE HAIL AND 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 3535 8096 3535 8097 3534 8099 3533 8098
      3527 8102 3525 8101 3518 8107 3543 8138
      3556 8127 3556 8121 3544 8096 3539 8095
      3538 8098 3537 8099 3536 8097 3538 8096
      3536 8092
TIME...MOT...LOC 2204Z 307DEG 22KT 3547 8125

HG
Special weather statement, May 21, 6:22 PM EDT, 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
622 PM EDT SAT MAY 21 2016

NCZ057-072-212300-
CABARRUS NC-ROWAN NC-
622 PM EDT SAT MAY 21 2016

...A THUNDERSTORM WITH FREQUENT LIGHTNING WILL IMPACT PORTIONS OF
SOUTHWESTERN ROWAN AND NORTHWESTERN CABARRUS COUNTIES
INCLUDING THE CHARLOTTE MOTOR SPEEDWAY UNTIL 700 PM EDT...

AT 621 PM EDT...DOPPLER RADAR WAS TRACKING A THUNDERSTORM 6 MILES
NORTH OF HUNTERSVILLE...OR NEAR DAVIDSON...MOVING SOUTHEAST AT 25
MPH.

LOCATIONS TO BE IMPACTED INCLUDE... KANNAPOLIS...DOWNTOWN
CONCORD...WEST CONCORD...HARRISBURG...ENOCHVILLE... CHARLOTTE MOTOR
SPEEDWAY AND CODDLE CREEK RESERVOIR.

PEA SIZE HAIL AND WIND GUSTS UP TO 30 MPH WILL BE POSSIBLE IN THESE
AREAS. FREQUENT LIGHTNING AND HEAVY RAINFALL AT RATES AROUND AN INCH
PER HOUR ARE EXPECTED AS WELL.

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 3533 8051 3529 8059 3527 8067 3535 8069
      3540 8077 3542 8075 3550 8079 3551 8078
      3551 8074 3554 8074 3558 8075 3546 8048
TIME...MOT...LOC 2221Z 304DEG 23KT 3551 8083

HG
Special weather statement, May 21, 6:42 PM EDT, 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
642 PM EDT SAT MAY 21 2016

NCZ070-071-212315-
GASTON NC-MECKLENBURG NC-
642 PM EDT SAT MAY 21 2016

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN
MECKLENBURG AND EASTERN GASTON COUNTIES UNTIL 715 PM EDT...

AT 642 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTHEAST OF GASTONIA...OR NEAR STANLEY...MOVING SOUTHEAST AT
25 MPH.

LOCATIONS TO BE IMPACTED INCLUDE...
UPTOWN CHARLOTTE...GASTONIA...HUNTERSVILLE...CENTRAL CHARLOTTE...
SOUTHWEST CHARLOTTE...NORTHEAST CHARLOTTE...NORTHWEST CHARLOTTE...MT
HOLLY...BELMONT AND DALLAS.

PEA SIZE HAIL AND WIND GUSTS UP TO 35 MPH WILL BE POSSIBLE IN THESE
AREAS. EXPECT FREQUENT LIGHTNING AND HEAVY RAINFALL AT RATES AROUND
ONE INCH PER HOUR AS WELL.

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 3509 8083 3528 8120 3541 8113 3540 8095
      3534 8070
TIME...MOT...LOC 2242Z 294DEG 22KT 3534 8108

HG

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 3:03 PM EDTSpecial Weather StatementGSPLincoln27 min
May 21, 3:24 PM EDTSpecial Weather StatementGSPGaston, Lincoln36 min
May 21, 3:41 PM EDTSpecial Weather StatementGSPPolk34 min
May 21, 4:02 PM EDTSpecial Weather StatementGSPBurke28 min
May 21, 4:23 PM EDTSpecial Weather StatementGSPBurke37 min
May 21, 4:37 PM EDTSpecial Weather StatementGSPDavie23 min
May 21, 4:58 PM EDTSpecial Weather StatementGSPDavie17 min
May 21, 5:23 PM EDTSpecial Weather StatementGSPDavie37 min
May 21, 5:37 PM EDTSpecial Weather StatementGSPCatawba23 min
May 21, 5:57 PM EDTSpecial Weather StatementGSPLincoln33 min
May 21, 6:05 PM EDTSpecial Weather StatementGSPGaston, Lincoln25 min
May 21, 6:22 PM EDTSpecial Weather StatementGSPCabarrus38 min
May 21, 6:42 PM EDTSpecial Weather StatementGSPGaston, Mecklenburg33 min
May 21, 6:59 PM EDTSpecial Weather StatementGSPCabarrus31 min
May 21, 7:28 PM EDTSpecial Weather StatementGSPCabarrus32 min
May 21, 7:45 PM EDTAreal Flood AdvisoryGSPMecklenburg2 hr
May 21, 7:47 PM EDTSpecial Weather StatementGSPUnion43 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2016Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.