Alert archive / South Carolina / Flash Flood Warnings in 2002

Flash Flood Warning 17, NWS Greenville-Spartanburg, SC

October 15, 2002Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Oct 15, 2002, 8:19 AM EDT for Greenville 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 counties it named.

The facts

Issued
Oct 15, 2002, 8:19 AM EDT (12:19 UTC)
Expired
Oct 15, 2002, 11:15 AM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Greenville County, SC

The radar

The Greer radar (KGSP), 14 km from the middle of the area, began a volume at 12:18 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 0.3 hours before the alert went out and 259 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, Peachtre/Fal Fld, GA at 12:00Z on 2002-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLEL10008507005003002001001 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, Peachtre/Fal Fld, GA at 12:00Z on 2002-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
8 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
446 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
71 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 151219
FFWGSP
SCC045-151515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
820 AM EDT TUE OCT 15 2002

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 1115 AM EDT

* AT 806 AM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
RAIN MOVING ACROSS GREENVILLE COUNTY.

* RAINFALL IN EXCESS OF ONE AND A HALF INCHES HAS FALLEN ACROSS 
PORTIONS OF GREENVILLE COUNTY THIS MORNING. RIVER AND STREAM LEVELS 
ARE RISING...AND ADDITIONAL RAINFALL WILL RUNOFF SATURATED 
GROUND...CAUSING RIVER LEVELS TO RISE FURTHER. THE REEDY RIVER IN 
GREENVILLE WAS NEAR 7.15 FEET...AND FLOOD STAGE IS 8.00 FEET...AND 
THE RIVER IS EXPECTED TO GO ABOVE FLOOD STAGE SHORTLY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. PEOPLE NEAR 
RIVERS AND STREAMS SHOULD MOVE TO HIGHER GROUND. MOTORISTS SHOULD 
NOT ATTEMPT TO CROSS WATER COVERED ROADS.

$$
07
3 follow-up statements
000 
WGUS72 KGSP 151326
FFSGSP
SCC045-151515-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
924 AM EDT TUE OCT 15 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 1115 AM EDT FOR GREENVILLE
COUNTY...

AT 915 AM EDT...WEATHER SERVICE RADAR CONTINUED TO INDICATE MODERATE 
TO HEAVY RAIN FALLING ACROSS MUCH OF GREENVILLE COUNTY. RAINFALL WAS 
HEAVIEST ALONG AND NORTH OF INTERSTATE 85. IN THIS AREA...RAIN WILL 
CONTINUE TO FALL AT THE RATE OF AROUND A HALF INCH AN HOUR...WITH 
SOME LOCATIONS SEEING HIGHER AMOUNTS.

AS OF 915 AM EDT...THE REEDY RIVER IN GREENVILLE HAD RISEN TO 
7.7 FEET. FLOOD STAGE IS 8 FEET. WHILE NO STREAM FLOODING HAS YET 
BEEN REPORTED...URBAN FLOODING HAS OCCURRED AT THE JUNCTION OF 
INTERSTATE 85 AND AUGUSTA ROAD...AS WELL AS ALONG SOME OF THE ROADS 
AROUND BEREA HIGH SCHOOL. STREAMS ARE REPORTED TO BE RUNNING 
HIGH...AND SOME FLOODING STREAMS AND CREEKS SHOULD SOON BEGIN TO 
DEVELOP

DURING HEAVY RAIN EVENTS...SEVERE URBAN FLOODING CAN OCCUR IN AREAS 
SUCH AS UNDERPASSES...AND LOW AREAS WHERE WATER TENDS TO COLLECT. 
CHILDREN SHOULD BE KEPT AWAY FROM SMALL STREAMS AND STORM DRAINS.

$$
MCAVOY
000 
WGUS72 KGSP 151435
FFSGSP
SCC045-151515-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1031 AM EDT TUE OCT 15 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 1115 AM EDT FOR GREENVILLE
COUNTY...

MODERATE TO HEAVY RAIN CONTINUES TO FALL OVER MOST OF GREENVILLE 
COUNTY...PARTICULARLY AREAS ALONG AND NORTH OF INTERSTATE 85. AT 
1020 AM EDT...THE REEDY RIVER IN GREENVILLE WAS AT 8.13 FEET AND 
RISING. THIS IS JUST ABOVE THE FLOOD STAGE OF 8 FEET. AT THIS 
LEVEL...MINOR FLOODING OF CLEVELAND PARK WILL OCCUR.

NO OTHER REPORTS OF STREAM FLOODING HAVE BEEN RECEIVED. 
HOWEVER...COUNTY AND CITY POLICE REPORT THAT STREAMS ARE GETTING 
HIGHER. AS MODERATE TO HEAVY RAIN IS EXPECTED TO CONTINUE OVER THE 
COUNTY...ADDITIONAL STREAM FLOODING IS EXPECTED TO DEVELOP.

IF THE REEDY STAYS ABOVE FLOOD STAGE...THEN THE FLASH FLOOD WARNING 
FOR GREENVILLE COUNTY WILL NEED TO BE EXTENDED INTO THE EARLY 
AFTERNOON. 

$$
MCAVOY
000 
WGUS72 KGSP 151522
FFSGSP
SCC045-151615-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1120 AM EDT TUE OCT 15 2002

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR GREENVILLE COUNTY
HAS EXPIRED AS OF 1115 AM EDT...

AT 1115 AM EDT...RADAR INDICATED THAT HEAVY RAIN HAD ENDED OVER THE 
WARNED AREA. LIGHT TO MODERATE RAIN WILL CONTINUE OVER GREENVILLE 
COUNTY MUCH OF THE AFTERNOON...BUT CURRENT RAINFALL RATES ARE NOT 
HIGH ENOUGH TO CAUSE ANY ADDITIONAL FLOODING. THE REEDY RIVER IN 
GREENVILLE WAS BEGINNING TO SLOWLY RECEDED. THE LEVEL AT 1110 AM EDT 
WAS 8.12 FEET. THE RIVER IS EXPECTED TO SOON FALL BACK BELOW THE 
FLOOD STAGE OF 8 FEET.

LATER IN THE AFTERNOON...HEAVY RAIN IS EXPECTED TO REDEVELOP OVER 
THE AREA. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR GREENVILLE 
COUNTY THROUGH TONIGHT.

$$
MCAVOY

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 Oct 15, 3:53 AM EDT, 4 hours 26 minutes earlier.

Area forecast discussion, Oct 15, 3:53 AM EDT, 4 hours 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
353 AM EDT TUE OCT 15 2002

HEAVY RNFL EVENT STILL ON TRACK TO UNFOLD ACRS THE CWFA THRU
TONIGHT WITH THE PREFERRED MORE OPEN/PROGRESSIVE GFS/CANADIAN/
UKMET HANDLING OF SOUTHERN STREAM WAVE. THE COMBINATION OF STG
EASTERLY UPGLIDE FLOW ABOVE DAMMED SFC BASED STABLE LAYER...
ALONG WITH STG UVVS ASSOCIATED WITH UPPER WAVE...AND DIFFLUENT
FLOW ALOFT SHOULD LEAD TO HIGHEST QPF AXIS ALONG THE NC ESCARPMENT.

NOT CLEAR CUT WHETHER A BONAFINED EXCESSIVE RAIN THREAT HAS DEVELOPED
OR NOT...GIVEN SPEED OF SYSTEM...STILL DRY ANTECEDENT CONDS AND NOT
A GUARANTEE OF CONVECTIVE ELEMENTS FORMING IN STRATIFORM RAIN EVENT.
HOWEVER...FEEL THREAT IS HIGH ENOUGH TO ISSUE FFA ADJACENT TO RAHS
FFA OFF TO OUR EAST. THIS ENCOMPASSES AFOREMENTIONED HEAVIEST RNFL
AXIS AND EXTENDS FAR ENOUGH SOUTH TO COVER MAINLY URBAN FLOOD THREAT
ALONG I-85 CORRIDOR FROM GSP NORTHEASTWARD.

FOR DAY 2...DEEPER RH AND UVVS SHOULD HAVE TRANSLATED NE OF THE
CWFA BY THE START OF THE PERIOD WITH SHALLOW WRAP AROUND MOISTURE...
SOME CAA AND WINDY CONDITIONS LINGERING...ESPECIALLY ACRS THE MTNS.
DRYING ON TAP FOR WED NITE AS NW FLOW WEAKENS...BACKS AND TEMP
ADVECTION BECOMES NEUTRAL.

IN THE EXTENDED...EXECUTED JUST SOME TWEAKS TO GRIDDED FIELDS TO
BRING A FEW OF THEM IN LINE WITH CLUSTER OFFICES. STILL LOOKING
LIKE REINFORCING SHOT OF COLD AIR ON FRIDAY WITH UPPER WAVE
BRUSHING BY TO OUR NORTH AND SOME RETURN FLOW MOISTURE ON SUNDAY.

FCSTID =  55
GSP   53  50  65  46 / 100 100  20   0
AND   53  51  66  46 / 100  90  10   0
CLT   53  50  66  47 / 100 100  20   0
HKY   51  48  64  45 / 100 100  20   0
AVL   51  48  57  43 / 100 100  20   0

.GSP...
GA...NONE.
NC...FLOOD WATCH FOR THIS AFTERNOON AND TONIGHT NCZ033>037...
NCZ048>050...NCZ052>057...NCZ064>072...NCZ082.
SC...FLOOD WATCH FOR THIS AFTERNOON AND TONIGHT SCZ003...SCZ006>009.
Hazardous weather outlook, Oct 15, 6:11 AM EDT, 2 hours 8 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-151215-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
611 AM EDT TUE OCT 15 2002

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

.DAY ONE...

WIDESPREAD HEAVY RAIN IS EXPECTED TO CONTINUE INTO TONIGHT WITH THE
THREAT OF EXCESSIVE RAINFALL ACROSS MUCH OF WESTERN NORTH CAROLINA
AND ADJACENT AREAS OF THE SOUTH CAROLINA UPSTATE. FOR FURTHER
DETAILS...PLEASE REFER TO THE LATEST FLOOD WATCH...FFAGSP...AND
SPECIAL WEATHER STATEMENT...SPSGSP...ISSUED BY THIS OFFICE.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

.DAYS TWO THROUGH SEVEN...

WINDY CONDITIONS...ESPECIALLY ACROSS HIGHER ELEVATIONS ARE LIKELY
ON WEDNESDAY. FOR FURTHER DETAILS...PLEASE REFER TO THE LATEST
SPECIAL WEATHER STATEMENT...SPSGSP...ISSUED BY THIS OFFICE.

SOME FROST WILL BE POSSIBLE ACROSS PARTS OF THE NORTH CAROLINA
MOUNTAINS EARLY SATURDAY MORNING.

55

In the hours before

Special weather statement, Oct 15, 4:40 AM EDT, 3 hours 39 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-151545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
440 AM EDT TUE OCT 15 2002

...HEAVY RAIN EXPECTED ACROSS THE WESTERN CAROLINAS AND NORTHEAST
GEORGIA...

THE COMBINATION OF STRONG EASTERLY FLOW AND LIFT ASSOCIATED
WITH LOW PRESSURE MOVING UP FROM THE GULF OF MEXICO WILL PRODUCE
WIDESPREAD HEAVY RAIN ACROSS THE REGION TODAY BEFORE TAPERING
OFF FROM SOUTH TO NORTH LATER TONIGHT.

RAINFALL AMOUNTS THROUGH TONIGHT ARE EXPECTED TO AVERAGE FROM 2 TO 3
INCHES WITH LOCAL 4 TO 5 INCHES POSSIBLE...ESPECIALLY ACROSS THE
NORTH CAROLINA MOUNTAINS AND FOOTHILLS. EXCESSIVE RAIN IS POSSIBLE
ACROSS MUCH OF WESTERN NORTH CAROLINA AND ADJACENT AREAS OF THE
SOUTH CAROLINA UPSTATE WHERE A FLOOD WATCH HAS BEEN POSTED.

IN THE WAKE OF THIS SYSTEM...BEGINNING DURING THE PRE-DAWN
HOURS WEDNESDAY...STIFF NORTHWEST WINDS ARE EXPECTED REGION
WIDE. STRONG WIND GUSTS ARE POSSIBLE...ESPECIALLY ACROSS HIGHER
ELEVATIONS THROUGH ABOUT MIDDAY WEDNESDAY. IT IS POSSIBLE THAT
A FEW TREES...EITHER WEAKENED BY DROUGHT OR DUE TO WET GROUND
MAY BE TOPPLED BY THE WIND.

LISTEN TO WEATHER RADIO...OR TO THE MEDIA...FOR LATER STATEMENTS
CONCERNING THIS DEVELOPING WEATHER SITUATION.

55

Nearby

Flash Flood Warnings in South Carolina, 2002Every flash flood warning in 2002

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.