Alert archive / North Carolina / Flash Flood Warnings in 2005

Flash Flood Warning 69, NWS Greenville-Spartanburg, SC

August 14, 2005Mecklenburg County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 14, 2005, 4:58 PM EDT for Mecklenburg County, North 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
Aug 14, 2005, 4:58 PM EDT (20:58 UTC)
Expired
Aug 14, 2005, 8:00 PM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

County Mecklenburg County, NC

The radar

The Greer radar (KGSP), 137 km from the middle of the area, began a volume at 21:02 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, 9.0 hours before the alert went out and 127 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 2005-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1595 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 2005-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
1595 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
951 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-1 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, in the capitals the NWS used until 2016.

000 
WGUS52 KGSP 142100
FFWGSP
NCC119-150000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
458 PM EDT SUN AUG 14 2005

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH CAROLINA

* UNTIL 800 PM EDT

* AT 450 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT 
  NUMEROUS ROADS IN THE SOUTHEAST PART OF MECKLENBURG COUNTY WERE
  UNDER WATER. RADAR ESTIMATES THAT AROUND 3 INCHES OF RAIN HAS
  FALLEN IN THIS AREA IN A LITTLE OVER AN HOUR. AN ADDITIONAL 
  HALF INCH OF RAIN WILL BE POSSIBLE BEFORE PRECIPITATION TAPERS 
  OFF. THE HEAVIEST RAIN HAD FALLEN TO THE SOUTHWEST OF MATTHEWS
  ALONG INTERSTATE 495 AND HIGHWAY 16.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNC
  CHARLOTTE...SOUTHPARK MALL...PAW CREEK...MINT HILL...MATTHEWS...
  AND EASTLAND MALL.

DURING HEAVY RAIN EVENTS...SEVERE URBAN FLOODING CAN OCCUR IN AREAS
SUCH AS UNDERPASSES AND LOW AREAS WHERE WATER TENDS TO COLLECT. DO
NOT LET YOUR CHILDREN PLAY NEAR SMALL STREAMS OR FLOODED DRAINAGE
DITCHES AND STORM SEWERS.

LAT...LON 3514 8061 3533 8070 3526 8102 3500 8084

$$

MCAVOY
2 follow-up statements
000 
WGUS72 KGSP 142219
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
608 PM EDT SUN AUG 14 2005

NCC119-150000-
MECKLENBURG NC-
608 PM EDT SUN AUG 14 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 800 PM EDT FOR SOUTHERN
MECKLENBURG COUNTY...

AT 605 PM EDT...THE MECKLENBURG COUNTY 911 CENTER REPORTED THAT 
FLOODING IN THE SOUTHERN PART OF THE COUNTY HAD NOT IMPROVED MUCH IN 
THE LAST HOUR.  NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWS THAT 
THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED TO THE SOUTHWEST AND AWAY 
FROM THE AREA.  SOME LIGHT TO MODERATE RAIN CONTINUES OVER THE 
SOUTHERN HALF OF MECKLENBURG COUNTY AND SHOULD GRADUALLY COME TO AN 
END DURING THE NEXT HOUR.  THE HEAVIEST RAIN ACCORDING TO RADAR 
ESTIMATES OCCURRED JUST WEST OF MATTHEWS...IN THE FOUR MILE CREEK 
AREA NEAR HIGHWAY 16 AND ALONG AND NORTH OF INTERSTATE 485.  IN THIS 
AREA...RADAR INDICATED AROUND THREE INCHES OF RAIN FELL IN ABOUT AN 
HOUR.

DURING HEAVY RAIN EVENTS...SEVERE URBAN FLOODING CAN OCCUR IN AREAS 
SUCH AS UNDERPASSES...AND LOW AREAS WHERE WATER TENDS TO COLLECT. DO 
NOT LET YOUR CHILDREN PLAY NEAR SMALL STREAMS OR FLOODED DRAINAGE 
DITCHES AND STORM SEWERS.

LAT...LON 3514 8061 3533 8070 3526 8102 3500 8084

$$

OUTLAW
000 
WGUS72 KGSP 142312
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
710 PM EDT SUN AUG 14 2005

NCC119-142320-
MECKLENBURG NC-
710 PM EDT SUN AUG 14 2005

...THE FLASH FLOOD WARNING FOR SOUTHERN MECKLENBURG COUNTY IS
CANCELLED...

HEAVY RAIN HAS ENDED ACROSS THE COUNTY. HOWEVER...THERE MAY BE A FEW 
LOCATIONS WHERE WATER REMAINS ON ROADS. DO NOT DRIVE YOUR VEHICLE 
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY 
BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
 
LAT...LON 3514 8061 3533 8070 3526 8102 3500 8084

$$

LANE

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 14, 2:31 PM EDT, 2 hours 27 minutes earlier.

Area forecast discussion, Aug 14, 2:31 PM EDT, 2 hours 27 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
231 PM EDT SUN AUG 14 2005

.SHORT TERM (TONIGHT THROUGH MONDAY)...
WEAK UPPER RIDGE REMAINS OVER AREA WITH LIGHT WIND FLOW THROUGH THE
ATMOSPHERIC COLUMN. MODELS IN GOOD AGREEMENT WITH MINIMAL UPPER
DYNAMICS THROUGH THE SHORT TERM AND BOTH GFS AND NAM MOS HAVE
LOWERED POPS SIGNIFICANTLY THIS EVE AND MON. WEAK UPPER DEFORMATION
ZONE PERSISTS HOWEVER JUST W OF MTNS AND IS VISIBLE ON SAT IMAGERY.
MAIN SURFACE FEATURE IS A COLD FRONT ACROSS THE OH VALLEY THAT STAYS
WELL N OF AREA BUT A WEAK TROF HAS SET UP ACROSS THE PIEDMONT. WITH
SFC HEATING ADDED TO THESE OTHER WEAK FACTORS EXPECT SCT CONVECTION
THIS AFTN-EVE AND AGAIN LATE MON. RH REMAINS HIGH WITH TEMPS SIMILAR
TO LAST FEW DAYS.

&&

.LONG TERM (MONDAY NIGHT THROUGH SUNDAY)...
HEIGHTS ALOFT PROGD TO CONTINUE A SLOW FALL THROUGH WEDNESDAY...AS A
FRONTAL BOUNDARY SAGS SOUTH TOWARD THE CAROLINA BORDER. GFS QUITE
INSISTENT THAT THIS FEATURE WILL SAG SOUTH TO THE PALMETTO
STATE...BUT CONSENSUS IS THAT GFS IS TOO AGGRESSIVE...BUT NCEP DOES
SHOW THE FEATURE SAGGING INTO NORTHERN NORTH CAROLINA BY WEDNESDAY.
WILL CONTINUE MAINLY AFTERNOON AND EVENING CONVECTION MONDAY NIGHT
THROUGH TUESDAY NITE...THEN SLIGHTLY HIGHER POPS EAST AND NORTH WITH
FRONT WEDNESDAY AND WEDNESDAY NITE...AND WE DID INDICATE CONTINUED
HIGHER ELEVATION POPS WEDNESDAY NITE/THURSDAY MOUNTAINS.

ANY COOLDOWN AS A RESULT OF THIS FRONT WILL ERODE BY THE END OF THE
WEEK...WITH UPPER RIDGE AGAIN ATTEMPTING TO BUILD OVER THE REGION.
WE LOWERED MAXES TO 80S NORTH THURSDAY AND FRIDAY...THEN BUMP
TEMPERATURES BACK TO 90S OUTSIDE THE MOUNTAINS BY THE START OF NEXT
WEEKEND. NO REAL TRIGGERS EXPECTED AFTER THE FRONTAL PASSAGE...BUT
LOWER LEVELS PROGD TO REMAIN MOIST...SO POPS BY THE WEEKEND MORE OF
A DIURNAL NATURE.

&&

.AVIATION...
CONVECTION SLOWER TO GET GOING TODAY AND MODELS HAVE BACKED OFF ON
POPS THIS AFTN-EVE. STILL EXPECT AT LEAST SCT TSTMS SO WILL RETAIN
VCTS AND CB CLOUDS AT ALL SITES. CIGS HAVE BEEN FORMING JUST
BELOW VFR SO HAVE ALSO INCLUDED A TEMPO GROUP FOR BKN CIGS AROUND 3K
FT. MVFR FG/HZ EXPECTED AGAIN LATE TONIGHT-EARLY MON WITH PSBL IFR
AROUND DAYBREAK...MAINLY AT KAVL.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.
&&

SHORT TERM...RB
LONG TERM...SAB
AVIATION...RB
Hazardous weather outlook, Aug 14, 6:27 AM EDT, 10 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
627 AM EDT SUN AUG 14 2005

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-
SCZ001>014-019-151030-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-CALDWELL-
ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-
BUNCOMBE-MCDOWELL-BURKE-CATAWBA-ROWAN-GRAHAM-NORTHERN JACKSON-
MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-POLK-RUTHERFORD-
CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-
GREENWOOD-
627 AM EDT SUN AUG 14 2005

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED ONCE AGAIN THIS AFTERNOON AND
EVENING. LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING WILL BE THE
BIGGEST THREAT FROM STORMS TODAY. ISOLATED EXCESSIVE RAINFALL AND
PERHAPS FLASH FLOODING IS POSSIBLE AS WELL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A DAILY CHANCE OF SHOWERS AND THUNDERSTORMS IS EXPECTED THROUGH
SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Special weather statement, Aug 14, 4:29 PM EDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
429 PM EDT SUN AUG 14 2005

SCZ008-142130-
CHEROKEE SC-
INCLUDING THE CITY OF...GAFFNEY
429 PM EDT SUN AUG 14 2005

...STRONG THUNDERSTORM AFFECTING CHEROKEE COUNTY...

AT 423 PM EDT...WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM
OVER EASTERN CHEROKEE COUNTY. THE MOST INTENSE PART OF THE STORM WAS
LOCATED ABOUT 5 MILES SOUTHEAST OF GAFFNEY...MOVING SOUTHWEST AT
AROUND 5 MPH. THROUGH 530 PM...THIS STORM WILL MAINLY AFFECT
LOCATIONS SOUTH OF GAFFNEY.

THE MAIN THREAT FROM THIS STORM WILL BE IN THE FORM OF FREQUENT
CLOUD TO GROUND LIGHTNING AND TORRENTIAL RAINFALL RATES OF 1 TO 2
INCHES PER HOUR. HOWEVER...THE STORM MAY ALSO PRODUCE BRIEF PERIODS
OF PEA SIZE HAIL AND GUSTY WINDS OF AROUND 40 MPH.

MOVE INDOORS UNTIL THIS STORM HAS PASSED.

LANE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 3:48 PM EDTSevere Thunderstorm WarningGSPMecklenburg57 min

Nearby

Flash Flood Warnings in North Carolina, 2005Every flash flood warning in 2005

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.