Alert archive / North Carolina / Flash Flood Warnings in 2024

Flash Flood Warning 41, NWS Greenville-Spartanburg, SC

August 8, 2024Cabarrus County, Mecklenburg County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 8, 2024, 5:19 AM EDT for Cabarrus County, Mecklenburg County, North Carolina. It was in force for 15 hr. 7 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
Aug 8, 2024, 5:19 AM EDT (09:19 UTC)
Expired
Aug 8, 2024, 8:00 PM EDT
In force
15 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Cabarrus County, NC, Mecklenburg County, NC

The radar

The Greer radar (KGSP), 128 km from the middle of the area, began a volume at 09:21 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
Aug 8, 8:30 AM EDTFLOOD3 E Belmont, NCHighway 74 closed to the west of Sam Wilson Road. Car stalled out in the flood water and law enforcement on the scene. This is between Sam Wilson Road and Old Dowd Road.
Aug 8, 8:37 AM EDTFLASH FLOOD1 E Center City Charlot, NCSeveral inches of water on Hawthorne Lane under a train bridge. Car stranded. This is a low area but there is a small creek beside the road that flows into Little Sugar Creek.
Aug 8, 10:27 AM EDTFLASH FLOOD1 W Center City Charlot, NCVideo of Stewart Creek flowing rapidly over W Morehead St. Current gauge reading at SMON7 is 16.03ft at time of LSR (16ft is moderate flood stage).
Aug 8, 11:29 AM EDTFLASH FLOOD4 Sw Kannapolis, NCPicture of water flowing over Trinity Church Rd from Afton Run coming out of its banks. Road closed.
Aug 8, 12:49 PM EDTFLASH FLOOD3 Sw Paw Creek, NCPicture on social media of water surrounding several mobile/manufactured homes due to flooding from Paw Creek.
Aug 8, 12:59 PM EDTFLASH FLOOD3 Ne Harrisburg, NCWater from Wolf Meadow Branch flowing over the bridge on Stough Rd. Several trees down in the City of Concord as well.
Aug 8, 2:51 PM EDTFLASH FLOOD3 Wnw Matthews, NCSocial media video of roads flooded at the entrance of the Sardis Swim and Racquet Club from McAlpine Creek.

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 6 storm reports to this flash flood warning; the first came 198 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 00:00Z, 9.3 hours before the alert went out and 129 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 00:00Z on 2024-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 654 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 00:00Z on 2024-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
654 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
705 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
-28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

840 
WGUS52 KGSP 080919
FFWGSP
NCC025-119-081500-
/O.NEW.KGSP.FF.W.0041.240808T0919Z-240808T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
519 AM EDT Thu Aug 8 2024

The National Weather Service in Greenville-Spartanburg has issued a

* Flash Flood Warning for...
  Cabarrus County in the piedmont of North Carolina...
  Mecklenburg County in the piedmont of North Carolina...

* Until 1100 AM EDT.

* At 519 AM EDT, Doppler radar indicated heavy rain across the 
  warned area. Between 1 and 2 inches of rain have fallen. 
  Additional rainfall amounts of 1 to 2 inches are possible in the 
  warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Charlotte, Huntersville, Kannapolis, Downtown Concord, West 
  Concord, Matthews, Cornelius, Mint Hill, Davidson, Weddington, 
  Stallings, Pineville, Harrisburg and Tega Cay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

When it is safe to do so, please report flooding or landslides 
threatening roads or property to the National Weather Service 
Greenville-Spartanburg 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 specific location where 
impacts occurred and the depth of flooding observed.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...RADAR INDICATED

$$

ARK
8 follow-up statements
703 
WGUS72 KGSP 081107
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
707 AM EDT Thu Aug 8 2024

NCC025-119-081500-
/O.CON.KGSP.FF.W.0041.000000T0000Z-240808T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cabarrus NC-Mecklenburg NC-
707 AM EDT Thu Aug 8 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS 
MORNING FOR CABARRUS AND MECKLENBURG COUNTIES...

At 707 AM EDT, Tropical rainfall will continue to overspread the 
warned area this morning. Between 2 and 3 inches of rain have 
already fallen. Additional rainfall amounts of 2 to 3 inches are 
possible in the warned area. Flash flooding is ongoing or expected 
to begin shortly. Watch for many streams to come out their banks 
this morning and widespread severe urban flooding to develop across 
greater Charlotte, Concord and Kannapolis and adjacent areas.

HAZARD...Life threatening flash flooding. Heavy rain producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Charlotte, Huntersville, Kannapolis, Concord, Matthews, Cornelius, 
  Mint Hill, Davidson, Weddington, Stallings, Pineville and, 
  Harrisburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

When it is safe to do so, please report flooding or landslides 
threatening roads or property to the National Weather Service 
Greenville-Spartanburg 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 specific location where 
impacts occurred and the depth of flooding observed.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CSH
178 
WGUS52 KGSP 081458
FFWGSP
NCC025-119-081700-
/O.EXT.KGSP.FF.W.0041.000000T0000Z-240808T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
1058 AM EDT Thu Aug 8 2024

The National Weather Service in Greenville-Spartanburg has extended 
the

* Flash Flood Warning for...
  Cabarrus County in the piedmont of North Carolina...
  Mecklenburg County in the piedmont of North Carolina...

* Until 100 PM EDT.

* At 1058 AM EDT, Doppler radar indicated heavy rain across the 
  warned area. Between 2 and 3 inches of rain have fallen. 
  Additional rainfall amounts of 2 to 3 inches are possible in the 
  warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Uptown Charlotte, Huntersville, Kannapolis, Downtown Concord, 
  Central Charlotte, South Charlotte, Northeast Charlotte, East 
  Charlotte, Southwest Charlotte, Northwest Charlotte, West Concord, 
  Matthews, Cornelius, Mint Hill, Davidson, Weddington, Stallings, 
  Pineville, Harrisburg and Tega Cay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

When it is safe to do so, please report flooding or landslides 
threatening roads or property to the National Weather Service 
Greenville-Spartanburg 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 specific location where 
impacts occurred and the depth of flooding observed.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CSH
408 
WGUS72 KGSP 081506
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
1106 AM EDT Thu Aug 8 2024

NCC025-119-081700-
/O.CON.KGSP.FF.W.0041.000000T0000Z-240808T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cabarrus NC-Mecklenburg NC-
1106 AM EDT Thu Aug 8 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1 PM EDT THIS 
AFTERNOON FOR CABARRUS AND MECKLENBURG COUNTIES...

At 1106 AM EDT, Widespread rain totals across Mecklenburg and 
Cabarrus Counties averaged 3.5 to 4.5 inches this morning and there 
remained considerable stream flooding all across the region which 
will only be slow to recede through the afternoon.  Remain wary of 
flooded roads today!

HAZARD...Life threatening flash flooding. Heavy rain producing
         flash flooding.

SOURCE...Gauges reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CSH
229 
WGUS52 KGSP 081606
FFWGSP
NCC025-119-081800-
/O.EXT.KGSP.FF.W.0041.000000T0000Z-240808T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
1206 PM EDT Thu Aug 8 2024

The National Weather Service in Greenville-Spartanburg has extended 
the

* Flash Flood Warning for...
  Cabarrus County in the piedmont of North Carolina...
  Mecklenburg County in the piedmont of North Carolina...

* Until 200 PM EDT.

* At 1206 PM EDT, Stream gages were showing smaller creeks and 
  streams across the city of Charlotte starting to fall as runoff 
  works it's way into the larger drainages of the Catawba and Rocky 
  Rivers.  Continue to watch for rising levels and developing and 
  lingering flooding along the larger streams and rivers such as 
  Sugar Creek and the Rocky River.

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CSH
407 
WGUS52 KGSP 081747
FFWGSP
NCC025-119-082300-
/O.EXT.KGSP.FF.W.0041.000000T0000Z-240808T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
147 PM EDT Thu Aug 8 2024

The National Weather Service in Greenville-Spartanburg has extended 
the

* Flash Flood Warning for...
  Cabarrus County in the piedmont of North Carolina...
  Mecklenburg County in the piedmont of North Carolina...

* Until 700 PM EDT.

* At 147 PM EDT, Heavy rainfall has ended across Mecklenburg and 
  Cabarrus counties, but numerous streams remain well above bankfull 
  following 3.5-5.5 inches of rainfall earlier today.  The Flash 
  Flood Warning has therefore been extended through 700pm as several 
  streams, including Coodle Creek, Mallard Creek, Rocky River, 
  Little Sugar Creek, Briar Creek, Irwin Creek, McDowell Creek 
  remain above Minor Flood Stage.  The floodwaves are beginning to 
  work further downstream and many larger streams will not crest for 
  several more hours. Please avoid flooded and barricaded roadways 
  and stay away from all streams through this evening as it will 
  take many more hours for streams to crest and recede back below 
  critical levels.

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of creeks and streams
           is ongoing.  Expect extensive flash flooding of
           farmland, parks, greenways, boat-access areas, and
           golf courses.  Inundation may be several feet deep.
           Several low-water crossings, roads, and bridges may be
           flooded and impassible, with deeper flows over
           roadways possible.  A few road washouts are likely.  A
           few structures may flood.

* Some locations that may continue to experience flash flooding 
  include...
  Uptown Charlotte, Huntersville, Kannapolis, Downtown Concord, 
  Central Charlotte, South Charlotte, Northeast Charlotte, East 
  Charlotte, Southwest Charlotte, Northwest Charlotte, West Concord, 
  Matthews, Cornelius, Mint Hill, Davidson, Weddington, Stallings, 
  Pineville, Harrisburg and Tega Cay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Keep children away from storm drains, culverts, creeks and streams. 
Water levels can rise rapidly and sweep children away.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JMP
374 
WGUS52 KGSP 082254
FFWGSP
NCC025-119-090000-
/O.EXT.KGSP.FF.W.0041.000000T0000Z-240809T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
654 PM EDT Thu Aug 8 2024

The National Weather Service in Greenville-Spartanburg has extended 
the

* Flash Flood Warning for...
  Cabarrus County in the piedmont of North Carolina...
  Mecklenburg County in the piedmont of North Carolina...

* Until 800 PM EDT.

* At 654 PM EDT, Heavy rainfall has ended across Mecklenburg and 
  Cabarrus counties, but numerous streams remain well above bankfull 
  following 3.5-5.5 inches of rainfall earlier today.  The Flash 
  Flood Warning has therefore been temporarily extended through 
  800pm as several streams, including Coodle Creek, Mallard Creek, 
  Rocky River, Little Sugar Creek, Briar Creek, Irwin Creek, 
  McDowell Creek remain above Minor Flood Stage.  The floodwaves are 
  beginning to work further downstream and many larger streams will 
  not crest for a few more hours. Please avoid flooded and 
  barricaded roadways and stay away from all streams through this 
  evening as it will take many more hours for streams to crest and 
  recede back below critical levels.

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of creeks and streams
           is ongoing.  Expect extensive flash flooding of
           farmland, parks, greenways, boat-access areas, and
           golf courses.  Inundation may be several feet deep.
           Several low-water crossings, roads, and bridges may be
           flooded and impassible, with deeper flows over
           roadways possible.  A few road washouts are likely.  A
           few structures may flood.

* Some locations that may continue to experience flash flooding 
  include...
  Uptown Charlotte, Huntersville, Kannapolis, Downtown Concord, 
  Central Charlotte, South Charlotte, Northeast Charlotte, East 
  Charlotte, Southwest Charlotte, Northwest Charlotte, West Concord, 
  Matthews, Cornelius, Mint Hill, Davidson, Weddington, Stallings, 
  Pineville, Harrisburg and Tega Cay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Keep children away from storm drains, culverts, creeks and streams. 
Water levels can rise rapidly and sweep children away.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3503 8077 3500 8084 3511 8093 3504 8104
      3506 8106 3511 8103 3514 8105 3516 8101
      3530 8100 3535 8097 3536 8092 3536 8097
      3536 8098 3537 8098 3540 8095 3549 8095
      3551 8091 3550 8030 3519 8051 3521 8055

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JMP
894 
WGUS72 KGSP 082314
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
714 PM EDT Thu Aug 8 2024

NCC025-082324-
/O.CAN.KGSP.FF.W.0041.000000T0000Z-240809T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cabarrus NC-
714 PM EDT Thu Aug 8 2024

...FLASH FLOOD WARNING IS CANCELLED FOR CABARRUS COUNTY...

Heavy rain has ended across Cabarrus County, therefore flash 
flooding no longer poses a threat.  However, streams within the 
Rocky River watershed remain above Minor Flood Stage causing 
extensive flooding of adjacent low-lying areas.  Therefore the Flash 
Flood Warning has been replaced with a Flood Warning.  Please 
continue to avoid all flooded roadways and heed barricades.  Stay 
away from all streams and adjacent areas until floodwaters have 
receded.

&&

LAT...LON 3511 8103 3514 8105 3516 8101 3530 8100
      3535 8097 3536 8092 3536 8097 3537 8098
      3549 8095 3551 8091 3551 8078 3540 8077
      3535 8069 3527 8067 3521 8055 3500 8084
      3511 8093 3506 8106

$$

NCC119-090000-
/O.CON.KGSP.FF.W.0041.000000T0000Z-240809T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mecklenburg NC-
714 PM EDT Thu Aug 8 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING 
FOR MECKLENBURG COUNTY...

At 714 PM EDT, Heavy rainfall has ended across Mecklenburg and 
Cabarrus counties, but numerous streams remain well above bankfull 
following 3.5-5.5 inches of rainfall earlier today.  The Flash Flood 
Warning has therefore been temporarily extended through 800pm as 
several streams, including Coodle Creek, Mallard Creek, Rocky River, 
Little Sugar Creek, Briar Creek, Irwin Creek, McDowell Creek remain 
above Minor Flood Stage.  The floodwaves are beginning to work 
further downstream and many larger streams will not crest for a few 
more hours. Please avoid flooded and barricaded roadways and stay 
away from all streams through this evening as it will take many more 
hours for streams to crest and recede back below critical levels.

HAZARD...Life threatening flash flooding. Heavy rain producing
         flash flooding.

SOURCE...Gauges reported.

IMPACT...Life threatening flash flooding of creeks and streams is
         ongoing.  Expect extensive flash flooding of farmland,
         parks, greenways, boat-access areas, and golf courses.
         Inundation may be several feet deep. Several low-water
         crossings, roads, and bridges may be flooded and
         impassible, with deeper flows over roadways possible.  A
         few road washouts are likely.  A few structures may
         flood.

Some locations that may continue to experience flash flooding 
include...
  Uptown Charlotte, Huntersville, Central Charlotte, South 
  Charlotte, Northeast Charlotte, East Charlotte, Southwest 
  Charlotte, Northwest Charlotte, West Concord, Matthews, Cornelius, 
  Mint Hill, Davidson, Pineville, Harrisburg, Marvin, The Plaza, 
  Hidden Valley, Freedom Park and Southpark Mall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Keep children away from storm drains, culverts, creeks and streams. 
Water levels can rise rapidly and sweep children away.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3511 8103 3514 8105 3516 8101 3530 8100
      3535 8097 3536 8092 3536 8097 3537 8098
      3549 8095 3551 8091 3551 8078 3540 8077
      3535 8069 3527 8067 3521 8055 3500 8084
      3511 8093 3506 8106

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JMP
364 
WGUS72 KGSP 082357
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
757 PM EDT Thu Aug 8 2024

NCC119-090007-
/O.EXP.KGSP.FF.W.0041.000000T0000Z-240809T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mecklenburg NC-
757 PM EDT Thu Aug 8 2024

...FLASH FLOOD WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING FOR 
MECKLENBURG COUNTY...

The floodwaves from earlier torrential rainfall have all moved to 
the lowest reaches of the the primary streams in Mecklenburg County, 
therefore the Flash Flood Warning will be allowed to expire.  Areas 
of nuisance flooding will persist adjacent to larger streams for the 
next few hours.  Please continue to avoid all parks and greenways 
next to streams and obey all barricades.

&&

LAT...LON 3511 8103 3514 8105 3516 8101 3530 8100
      3535 8097 3536 8092 3536 8097 3537 8098
      3549 8095 3551 8091 3551 8078 3540 8077
      3535 8069 3527 8067 3521 8055 3500 8084
      3511 8093 3506 8106

$$

JMP

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 Aug 8, 3:46 AM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Aug 8, 3:46 AM EDT, 1 hour 33 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
346 AM EDT Thu Aug 8 2024

.SYNOPSIS...
Tropical Cyclone Debby will gradually track northwest today with
the center expected to be near Charlotte, North Carolina by this
evening. Considerable rainfall is anticipated roughly along and
east of Interstate 77 today and tonight. The remnants of Debby
are expected to eventually move north of our area on Friday with
drier high pressure spreading over the region in its wake through
the weekend.

&&

.NEAR TERM /THROUGH FRIDAY/...
As of 345 AM Thursday: The leading edge of the rain shield
associated with Debby continues to spread westward across the
western Piedmont of NC and Charlotte metro area. The better rainfall
rates were starting to push into Union County, with some 1-1.5
inch per hour seen there. Sooner or later, this rain will start
to pile up and we will have to move into warning mode. We could
see a rapid development of flooding toward daybreak. Fortunately,
the ongoing forecast has this in hand and only a few tweaks were
made through daybreak.

With Debby now moving northward and back over land, we should
witness a transition toward a more extra-tropical low with the
precip shield shifting gradually to the left of the track. All
signs point to a continued westward expansion of the precip shield
across western NC and the nrn Upstate through the morning and
into the afternoon, so the precip probs follow accordingly. Minor
adjustments were made to handle this. The QPF has come down
again with this package...still sufficient to suggest a flooding
problem over the wrn Piedmont and especially the urban areas...but
less expansive. Thus, the Flood Watch will be left as-is for
now. Meanwhile, frequent gusts will continue into the afternoon in
advance of the center of Debby. We are looking a situation where
continued rain saturates the soil and makes it easier for the gusty
winds to start blowing down trees here and there. A Wind Advisory
is being contemplated and might be issued for all or part of the
area mainly east of the mtns and northeast of I-26 where it would
rain the most. The most uncertainty remains over the western half
of the fcst area later today, both in terms of how far west the
precip shield will make it, and how much instability/low level
convergence on the western periphery will be available to create
scattered showers. We allow for almost all the fcst area to get
at least a chance at a shower or thunderstorm for the time being,
but some of the CAMs are not as optimistic with the coverage or
generous with the amounts. Lots of folks over the mtns/northeast
GA/western Upstate are going to be left wondering what happened to
the storm. Temps will show a sharp difference between the below
normal areas east and the above normal areas west, depending on
where the rain shield stops. The new guidance seems to be in order
with taking the center of the circulation northward just to our
east during the late afternoon and evening. Once that passes, we
should see the main area of rain start to pull northward and out
of the fcst area, perhaps as early as midnight, but probably by
daybreak Friday. Wind should have diminished by then as well. Once
the remnants are off to the north on Friday, a developing westerly
flow favors some upslope enhancement for showers near the TN
border through the afternoon. Leftover convergence/moisture east
of the mtns suggest keeping a token slight chance/chance thru
peak heating. Temps should rebound back to normal in the east,
but should also end up hot again over northeast GA.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/...
As of 3:10 am Thursday: The short-term fcst picks up at 00z on
Saturday with the remnants of TC Debby already well north of our
area and drier Canadian high pressure spreading into the region
from the NW. There could be some lingering hydro/flood threats
over our eastern zones on Saturday, but they should be limited.
Otherwise, Saturday should be mostly dry with just a slight chance
for some diurnal convection over our southern zones as a weak, low-
level convergence zone is expected to set up just to our south and
southeast. Temperatures should be slightly cooler than Fri, with
highs near climatology across most of our CWA and values a few
degrees above climo over our SW zones.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
As of 2:45 am Thursday: The extended forecast picks up at 12z on
Sunday with very broad upper trofing centered well to our north
and broad upper ridging over the Western CONUS. At the surface,
Canadian high pressure will be centered to our NW as the period
begins. By early next week, the high will begin to weaken but
remains centered to our NW. At the same time, weak SLY return
flow begins to spread further north into our area. With the high
lingering to our NW, this will set up a broad area of weak low-
level convergence over our area thru the middle of next week.
As a result, the chances for diurnally-driven showers and thun-
derstorms is increasing for the first half of next week. From
Monday onward, I have slight to solid chance PoPs each day/
evening with marginally higher values over the mtns each day.
Otherwise, temperatures are expected to be near-normal thru the
period with our SW zones likely being slightly above normal and
our NE zones being slightly below normal.

&&

.AVIATION /08Z THURSDAY THROUGH MONDAY/...
At KCLT and elsewhere: And here we go!  The leading edge of the
precip associated with Debby was moving west and should reach KCLT
by 07Z at the latest, bringing an initial MVFR ceiling restriction,
then it all goes downhill E-to-W from there. KCLT will bear the
brunt of the restrictions, with IFR cigs arriving around the start
of operations and the lower vis restrictions by 12Z. Wind should
also pick up from the NE by then. There could be occasional LLWS at
KCLT, but the forecast wind difference between the sfc and 2k ft
doesn't technically meet the criteria, so it was left out of the
TAF. There will no doubt be some MVFR or even VFR holes, but for
the most part IFR is expected to prevail there, and also at KHKY.
The other terminals will be more on the edge of the precip shield
later today, so the confidence is lower, particularly over the
Upstate. Will use a TEMPO for the mid/late afternoon when it
would be most likely that some showers would wrap around from
the north. Otherwise, MVFR should prevail, and the gusts should
be frequent from the N. Farther to the W, KAND might end up VFR
through the whole day. What's left of the storm should pull out
to the N/NE this evening and take the precip with it, but a low
cloud restriction is likely to persist well into the overnight
hours early Friday morning.

Outlook: IFR and LLWS potential will not end in some areas until
early Friday morning. Diurnal convection and associated restrictions
may return for the weekend into early next week.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...Flood Watch through Friday morning for NCZ035>037-056-057-
     069>072-082.
SC...Flood Watch through Friday morning for SCZ009-014.

&&

SYNOPSIS...JPT
NEAR TERM...PM
SHORT TERM...JPT
LONG TERM...JPT
AVIATION...PM
Hazardous weather outlook, Aug 8, 5:08 AM EDT, 11 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
508 AM EDT Thu Aug 8 2024

NCZ033-049-050-068-501>510-SCZ008-012-013-108-109-090915-
Avery-Yancey-Mitchell-Cleveland-Caldwell Mountains-Greater Caldwell-
Burke Mountains-Greater Burke-McDowell Mountains-Eastern McDowell-
Rutherford Mountains-Greater Rutherford-Polk Mountains-Eastern Polk-
Cherokee-Laurens-Union SC-Northern Spartanburg-Southern Spartanburg-
508 AM EDT Thu Aug 8 2024

This Hazardous Weather Outlook is for piedmont North Carolina,
western North Carolina and upstate South Carolina.

.DAY ONE...Today and tonight.

Tropical Cyclone Debby is expected to impact the western Carolinas
through tonight. The main impacts would be an increased risk for
heavy rain, flooding, and gusty winds, with the greatest risk along
and east of I-77. The combination of persistent gusty winds and wet
soils from heavy rainfall will lead to scattered trees and powerlines
down. Check hurricanes.gov for the latest updates on this system.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ010-017-018-026-028-029-NCZ048-051>053-058-059-062>065-SCZ010-011-
019-101>107-090915-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Madison-Swain-Haywood-
Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Anderson-Abbeville-Greenwood-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Central Greenville-Southern Greenville-
508 AM EDT Thu Aug 8 2024

This Hazardous Weather Outlook is for northeast Georgia, western
North Carolina and upstate South Carolina.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035>037-056-057-069>072-082-SCZ009-014-090915-
Alexander-Iredell-Davie-Catawba-Rowan-Lincoln-Gaston-Mecklenburg-
Cabarrus-Union NC-York-Chester-
508 AM EDT Thu Aug 8 2024

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...

This Hazardous Weather Outlook is for piedmont North Carolina and
upstate South Carolina.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

In addition to the excessive rain, the approach and passage of Debby
to the east will bring frequent wind gusts across the western
Piedmont and northern Upstate through this evening. Winds may gust as
high as 45 mph at times. The gusty winds could knock down a few trees
where the soil becomes saturated by rainfall.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.SPOTTER INFORMATION STATEMENT...

None.

In the hours before

Special weather statement, Aug 8, 3:41 AM EDT, 1 hour 38 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
341 AM EDT Thu Aug 8 2024

NCZ057-071-072-082-080845-
Rowan NC-Union NC-Cabarrus NC-Mecklenburg NC-
341 AM EDT Thu Aug 8 2024

...STRONG WIND GUSTS FROM TROPICAL STORM DEBBY WILL IMPACT
CABARRUS...SOUTHEASTERN MECKLENBURG... SOUTHEASTERN ROWAN AND UNION
COUNTIES THROUGH 445 AM EDT...

At 339 AM EDT, Doppler radar was tracking a strong rain band along a
line extending from 11 miles southeast of Salisbury to 10 miles
south of Downtown Concord to 7 miles north of Lancaster. Movement
was west at 15 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Downtown Concord, Monroe, Kannapolis, Salisbury, South Charlotte,
East Charlotte, West Concord, Matthews, Mint Hill, and Indian Trail.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3550 8030 3519 8051 3516 8044 3518 8037
      3517 8036 3519 8028 3481 8032 3482 8080
      3494 8078 3504 8088 3529 8075 3572 8039
      3572 8034 3568 8033 3558 8021 3551 8018
TIME...MOT...LOC 0739Z 111DEG 14KT 3559 8029 3526 8058 3483 8080

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

ARK
Special weather statement, Aug 8, 4:46 AM EDT, 33 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
446 AM EDT Thu Aug 8 2024

NCZ036-057-070>072-SCZ009-014-080945-
Rowan NC-Gaston NC-Iredell NC-Cabarrus NC-Mecklenburg NC-York SC-
Chester SC-
446 AM EDT Thu Aug 8 2024

...STRONG WIND GUSTS FROM TROPICAL STORM DEBBY WILL IMPACT
NORTHWESTERN CABARRUS...SOUTHEASTERN IREDELL...
MECKLENBURG...SOUTHWESTERN ROWAN...EASTERN GASTON...CHESTER AND YORK
COUNTIES THROUGH 545 AM EDT...

At 444 AM EDT, Doppler radar was tracking a strong rain band along a
line extending from 4 miles northwest of Kannapolis to 10 miles
southwest of Uptown Charlotte to 5 miles southeast of Chester.
Movement was west at 10 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Gastonia, Rock Hill, Uptown Charlotte, Huntersville, Kannapolis,
Downtown Concord, York, Chester, Central Charlotte, and Northeast
Charlotte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3511 8081 3500 8084 3508 8091 3501 8091
      3492 8086 3454 8096 3457 8139 3519 8124
      3541 8104 3540 8096 3546 8094 3550 8096
      3569 8078 3556 8041
TIME...MOT...LOC 0844Z 102DEG 9KT 3555 8065 3516 8100 3466 8113

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

ARK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 3:41 AM EDTSpecial Weather StatementGSPCabarrus, Union64 min
Aug 8, 4:23 AM EDTFlash Flood WarningGSPUnion12 hr
Aug 8, 4:46 AM EDTSpecial Weather StatementGSPMecklenburg59 min
Aug 8, 5:46 AM EDTSpecial Weather StatementGSPGaston59 min
Aug 8, 6:11 AM EDTWind AdvisoryGSPAlexander, Cabarrus, Catawba, Davie, Gaston, Iredell and 4 more9 hr
Aug 8, 6:20 AM EDTFlash Flood WarningGSPRowan10 hr
Aug 8, 6:41 AM EDTFlash Flood WarningGSPGaston10 hr
Aug 8, 7:16 AM EDTFlash Flood WarningGSPDavie7 hr
Aug 8, 7:48 AM EDTFlash Flood WarningGSPLincoln8 hr
Aug 8, 8:23 AM EDTFlash Flood WarningGSPIredell8 hr
Aug 8, 10:47 AM EDTAreal Flood AdvisoryGSPAlexander, Catawba5 hr
Aug 8, 12:52 PM EDTAreal Flood AdvisoryGSPCleveland5 hr
Aug 8, 2:08 PM EDTAreal Flood AdvisoryGSPBurke, Caldwell, Cleveland, Rutherford8 hr
Aug 8, 2:19 PM EDTFlash Flood WarningGSPAlexander, Burke, Caldwell7 hr
Aug 8, 2:30 PM EDTRiver Flood AdvisoryGSPGaston71 min
Aug 8, 3:36 PM EDTRiver Flood WarningGSPGaston9 hr
Aug 8, 3:52 PM EDTAreal Flood AdvisoryGSPIredell3 hr
Aug 8, 4:01 PM EDTAreal Flood AdvisoryGSPUnion6 hr
Aug 8, 4:27 PM EDTAreal Flood AdvisoryGSPRowan22 hr
Aug 8, 6:52 PM EDTAreal Flood WarningGSPCabarrus, Mecklenburg36 hr

Nearby

Flash Flood Warnings in North Carolina, 2024Every flash flood warning in 2024

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.