Alert archive / North Carolina / Flash Flood Warnings in 2003

Flash Flood Warning 133, NWS Greenville-Spartanburg, SC

September 22, 2003Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 22, 2003, 6:44 PM EDT for Transylvania 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
Sep 22, 2003, 6:44 PM EDT (22:44 UTC)
Expired
Sep 22, 2003, 9:45 PM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

County Transylvania County, NC

The radar

The Greer radar (KGSP), 67 km from the middle of the area, began a volume at 22:47 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.7 hours before the alert went out and 253 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 2003-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 317 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, Peachtre/Fal Fld, GA at 12:00Z on 2003-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
317 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS52 KGSP 222243
FFWGSP
NCC175-230145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
644 PM EDT MON SEP 22 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA

* UNTIL 945 PM EDT

* AT 640 PM EDT...WEATHER SERVICE RADAR SHOWED VERY HEAVY RAIN       
  FALLING ACROSS A GOOD PART OF TRANSYLVANIA COUNTY.  ALTHOUGH THE   
  AXIS OF HEAVIEST RAIN HAS SHIFTED EAST FOR THE TIME                
  BEING...MODERATE TO HEAVY RAIN WILL CONTINUE UNTIL 9 PM AT LEAST.

* SOME URBAN FLOODING HAS BEEN REPORTED AROUND ROSMAN.  THE FRENCH   
  BROAD RIVER WAS A FOOT BELOW THE BRIDGE AND RISING...AND COULD     
  REACH NEAR FLOOD STAGE THIS EVENING.  ALSO...A MUDSLIDE HAS        
  OCCURRED ALONG PART OF HIGHWAY 64.

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND. EVEN MODERN SPORT UTILITY VEHICLES CANNOT BE
SAFELY DRIVEN THROUGH FLOOD WATERS.

WHEN DRIVING ALONG ROADS WHERE THE TERRAIN IS STEEP OR ROCKY...REMAIN
ALERT FOR POSSIBLE ROCK OR MUD SLIDES DUE TO THE HEAVY RAIN.

LAT...LON 3527 8294 3504 8304 3508 8282 3513 8265
          3539 8272

$$
JONES
2 follow-up statements
000 
WGUS72 KGSP 222346
FFSGSP
NCC175-230145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
745 PM EDT MON SEP 22 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 945 PM EDT FOR TRANSYLVANIA
COUNTY...

AT 735 PM...WEATHER RADAR SHOWED THE HEAVIEST RAIN NOW WELL EAST OF 
TRANSYLVANIA COUNTY.  LIGHT TO MODERATE RAIN WILL CONTINUE ACROSS 
THE COUNTY UNTIL AROUND 9 PM.

THE COUNTY COMMUNICATION CENTER REPORTED THAT FLASH FLOODING HAS 
BECOME QUITE SIGNIFICANT...WITH WATER ABOUT HALF WAY UP SOME CARS IN 
ROSMAN.  APPARENTLY...WATER WAS BACKING UP ON SMALL CREEKS IN AND 
AROUND TOWN...BECAUSE OF THE RISING FRENCH BROAD RIVER.  AT 730 
PM...THE FRENCH BROAD IN ROSMAN WAS AT 8.14 FEET AND RISING.  
OFFICIAL FLOOD STAGE IS 9 FEET...BUT LOWLAND FLOODING BEGINS AROUND 
8 FEET.

ALSO...A NUMBER OF MUD SLIDES HAVE BEEN REPORTED AROUND THE 
COUNTY...INCLUDING HIGHWAY 64...CASHIERS VALLEY...AND SILVERSTEIN 
ROAD.  ALSO...PART OF SILVERSTEIN ROAD WAS REPORTED WASHED AWAY.

EVEN THOUGH THE HEAVIEST RAIN HAS ENDED...FLOODING AND MUD SLIDES 
COULD CONTINUE THIS EVENING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. USE CAUTION IN OR NEAR ANY SMALL
CREEK TONIGHT...AND AVOID ROUTES THAT YOU KNOW ARE FLOOD PRONE.

DO NOT BECOME A FATALITY DO NOT CROSS FLOODED ROADS...THE ROAD COULD
BE WASHED OUT FROM THE FLOW OF THE WATER...AND YOUR CAR COULD BE
SWEPT AWAY BY THE SWIFTLY MOVING WATER.

$$
JONES
000 
WGUS72 KGSP 230117 CCA
FFSGSP
NCC175-230145-

FLASH FLOOD STATEMENT...CORRECTED ISSUE TIME
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
846 PM EDT MON SEP 22 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 945 PM EDT FOR TRANSYLVANIA
COUNTY...

A SIGNIFICANT FLASH FLOOD HAS OCCURRED ACROSS MUCH OF TRANSYLVANIA
COUNTY.  AROUND ROSMAN...THE FRENCH BROAD RIVER WAS REPORTED AT OVER
10 FEET...AND OFFICIAL FLOOD STAGE IS 9 FEET.  ALSO...DAVIDSON RIVER
ROAD WAS FLOODED IN PISGAH FOREST.  ACCORDING TO THE COUNTY
COMMUNICATIONS CENTER...THERE HAVE BEEN A NUMBER OF MUDSLIDES AND
FLOODED SMALL STREAMS IN THE COUNTY...ESPECIALLY IN WESTERN
SECTIONS.  ALTHOUGH THE RAIN HAS ENDED...FLOOD WATER HAS NOT BEGUN
TO RECEDE IN MANY AREAS...AS OF 845 PM EDT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. USE CAUTION IN OR NEAR ANY SMALL
CREEK TONIGHT...AND AVOID ROUTES THAT YOU KNOW ARE FLOOD PRONE.

DO NOT BECOME A FATALITY DO NOT CROSS FLOODED ROADS...THE ROAD COULD
BE WASHED OUT FROM THE FLOW OF THE WATER...AND YOUR CAR COULD BE
SWEPT AWAY BY THE SWIFTLY MOVING WATER.

$$
JONES

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 Sep 22, 3:20 PM EDT, 3 hours 24 minutes earlier.

Area forecast discussion, Sep 22, 3:20 PM EDT, 3 hours 24 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
320 PM EDT MON SEP 22 2003

COLD FRONT MOVES THROUGH THE AREA TONIGHT. SHOWERS AND A FEW TSRA
WILL MOVE THRU AS WELL. CANNOT RULE OUT ISOLATED SEVERE STORM GIVEN
STRONG WIND FIELDS ALOFT. WILL KEEP CATEGORICAL POP AND TREND PRECIP
ENDING FROM WEST TO EAST OVERNIGHT. WARMED UP MINS A LITTLE GIVEN
TIMING.

PRECIP SHOULD END BY 12Z TUE AS DRY HIGH PRESSURE BUILDS IN.
THICKNESSES HOLDING UP A LITTLE AND FULL SUN SO ACCEPTED SLIGHTLY
WARMER GUIDANCE MAXES. NEAR NORMAL TEMPS WED AS THICKNESSES FALL.

DRY FRONTAL SYSTEM MOVES THRU THURSDAY WITH NEARLY STEADY TEMPS.
MDLS TRENDING WETTER SAT/SUN AS LOW MOVES NORTHEAST NEAR ATLANTIC
COAST. DECENT UPGLIDE AND MOISTURE DEVELOP AND CONTINUES UNTIL LOW
PULLS OUT LATE SUNDAY. HAVE ADDED CHC RAIN WITH WARMER LOWS AND
COOLER HIGHS DURING THIS TIME. COOL DRY HIGH PRESSURE BUILDS BACK IN
MONDAY.

FCSTID = 81

GSP 64 84 56 80 / 99 10 00 00
AND 64 84 56 81 / 99 10 00 00
CLT 64 84 56 80 / 99 10 00 00
HKY 62 82 53 79 / 99 10 00 00
AVL 58 78 49 77 / 99 10 00 00

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.

RWH
Hazardous weather outlook, Sep 22, 6:00 AM EDT, 12 hours 44 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-221200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
600 AM EDT MON SEP 22 2003

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

.DAY ONE...TODAY

THUNDERSTORMS ARE EXPECTED TO DEVELOP AHEAD AND ALONG A COLD FRONT
APPROACHING FROM THE WEST. THERE IS A SLIGHT RISK THAT SOME OF THE
THUNDERSTORMS COULD PRODUCE DAMAGING WIND GUSTS THIS AFTERNOON AND
TONIGHT...MAINLY ACROSS THE FOOTHILLS AND PIEDMONT. THERE IS ENOUGH
WIND SHEAR IN THE LOWER ATMOSPHERE THAT A TORNADO WILL ALSO BE
POSSIBLE. FOR MORE INFORMATION...SEE THE SEVERE WEATHER OUTLOOK
(SPSGSP) ISSUED AT 507 AM. HEAVY RAIN IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY AND TONIGHT.

MOORE

In the hours before

Special weather statement, Sep 22, 4:40 PM EDT, 2 hours 4 minutes before
GAZ010-017-018-026-028-SCZ001-002-004-005-010-222130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
440 PM EDT MON SEP 22 2003

...HEAVY RAIN SHOWERS COULD PRODUCE ISOLATED STRONG WIND GUSTS
ACROSS EXTREME NORTHEAST GEORGIA AND THE WESTERN UPSTATE...

AT 430 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF
HEAVY RAIN SHOWERS MOVING INTO EXTREME NORTHEAST GEORGIA. THROUGH
530 PM...THESE SHOWERS WILL AFFECT AREAS FROM CLAYTON TO WALHALLA...
SOUTH TO CLARKESVILLE...TOCCOA...AND CARNESVILLE. THE MAIN THREAT
WITH THESE SHOWERS WILL BE HEAVY RAINFALL AMOUNTS IN EXCESS OF ONE
INCH PER HOUR. HOWEVER...THERE IS A POSSIBILITY THAT SOME OF THESE
SHOWERS COULD PRODUCE ISOLATED...BRIEF PERIODS OF DAMAGING WIND GUSTS
IN EXCESS OF 50 MPH. WIND GUSTS OF THIS MAGNITUDE COULD BLOW DOWN
POWER LINES...AS WELL AS SMALL TREES AND LARGE TREE BRANCHES.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

LANE
Special weather statement, Sep 22, 4:55 PM EDT, 1 hour 49 minutes before
NCZ033-048>053-058-059-062>065-222200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
455 PM EDT MON SEP 22 2003

...HEAVY RAIN SHOWERS COULD PRODUCE ISOLATED STRONG WIND GUSTS
ACROSS THE NORTH CAROLINA MOUNTAINS...

AT 445 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF
MODERATE RAIN...WITH ISOLATED HEAVY SHOWERS ACROSS THE MOUNTAINS OF
NORTH CAROLINA. THE MAIN THREAT THIS AFTERNOON AND EVENING WILL BE
HEAVY RAINFALL AMOUNTS IN EXCESS OF ONE INCH PER HOUR. HOWEVER...
THERE IS A POSSIBILITY THAT SOME OF THE ISOLATED SHOWERS COULD
PRODUCE BRIEF PERIODS OF WIND GUSTS IN EXCESS OF 50 MPH. WIND GUSTS
OF THIS MAGNITUDE COULD BLOW DOWN SMALL TREES AND LARGE TREE
BRANCHES.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

LANE
Special weather statement, Sep 22, 5:37 PM EDT, 1 hour 7 minutes before
NCZ033-048>053-058-059-062>065-222245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
537 PM EDT MON SEP 22 2003

...HEAVY RAIN SHOWERS COULD PRODUCE ISOLATED STRONG WIND GUSTS
AND URBAN FLOODING ACROSS THE WESTERN UPSTATE...

AT 530 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF
HEAVY RAIN SHOWERS AND THUNDERSTORMS ACROSS WESTERN OCONEE COUNTY.
THROUGH 645 PM...THESE SHOWERS WILL AFFECT MUCH OF OCONEE COUNTY...
INCLUDING WALHALLA...AND MUCH OF WESTERN PICKENS COUNTY...INCLUDING
THE CITY OF CLEMSON. THE MAIN THREAT WITH THESE SHOWERS WILL BE HEAVY
RAINFALL AMOUNTS IN EXCESS OF ONE INCH PER HOUR. THIS HEAVY RAINFALL
COULD PRODUCE FLOODING OF POOR DRAINAGE AND LOW LYING AREAS. THERE IS
ALSO A POSSIBILITY THAT THE SHOWERS COULD PRODUCE ISOLATED...BRIEF
PERIODS OF DAMAGING WIND GUSTS IN EXCESS OF 50 MPH. WIND GUSTS OF
THIS MAGNITUDE COULD BLOW DOWN SMALL TREES AND LARGE TREE BRANCHES.
OCCASIONAL CLOUD TO GROUND LIGHTNING WILL ALSO BE POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

LANE
Special weather statement, Sep 22, 5:37 PM EDT, 1 hour 7 minutes before
GAZ018-SCZ001>006-222245-

SPECIAL WEATHER STATEMENT...CORRECTED UGC
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
537 PM EDT MON SEP 22 2003

...HEAVY RAIN SHOWERS COULD PRODUCE ISOLATED STRONG WIND GUSTS
AND URBAN FLOODING ACROSS THE WESTERN UPSTATE...

AT 530 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF
HEAVY RAIN SHOWERS AND THUNDERSTORMS ACROSS WESTERN OCONEE COUNTY.
THROUGH 645 PM...THESE SHOWERS WILL AFFECT MUCH OF OCONEE COUNTY...
INCLUDING WALHALLA...AND MUCH OF WESTERN PICKENS COUNTY...INCLUDING
THE CITY OF CLEMSON. THE MAIN THREAT WITH THESE SHOWERS WILL BE HEAVY
RAINFALL AMOUNTS IN EXCESS OF ONE INCH PER HOUR. THIS HEAVY RAINFALL
COULD PRODUCE FLOODING OF POOR DRAINAGE AND LOW LYING AREAS. THERE IS
ALSO A POSSIBILITY THAT THE SHOWERS COULD PRODUCE ISOLATED...BRIEF
PERIODS OF DAMAGING WIND GUSTS IN EXCESS OF 50 MPH. WIND GUSTS OF
THIS MAGNITUDE COULD BLOW DOWN SMALL TREES AND LARGE TREE BRANCHES.
OCCASIONAL CLOUD TO GROUND LIGHTNING WILL ALSO BE POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

LANE
Special weather statement, Sep 22, 5:56 PM EDT, 48 minutes before
NCZ033-048>053-059-063>065-222300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
556 PM EDT MON SEP 22 2003

...FLOODING OF LOW LYING AREAS AND ISOLATED STRONG WIND GUSTS
POSSIBLE ACROSS THE NORTH CAROLINA MOUNTAINS...

AT 550 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF
MODERATE TO HEAVY RAIN...WITH SOME EMBEDDED THUNDERSTORMS ACROSS
THE NORTH CAROLINA MOUNTAINS. THROUGH 7 PM...THE HEAVIEST RAIN WILL
AFFECT THE SOUTHERN MOUNTAINS...FROM EASTERN BUNCOMBE COUNTY...TO
HENDERSON AND TRANSYLVANIA COUNTIES. THE MAIN THREAT IN THESE AREAS
WILL BE HEAVY RAINFALL AMOUNTS OF BETWEEN ONE AND TWO INCHES PER
HOUR. THIS HEAVY RAINFALL COULD PRODUCE FLOODING OF POOR DRAINAGE AND
LOW LYING AREAS. THERE IS ALSO A POSSIBILITY THAT THE HEAVIER SHOWERS
AND STORMS COULD PRODUCE ISOLATED...BRIEF PERIODS OF DAMAGING WIND
GUSTS IN EXCESS OF 50 MPH. WIND GUSTS OF THIS MAGNITUDE COULD BLOW
DOWN SMALL TREES AND LARGE TREE BRANCHES. OCCASIONAL CLOUD TO GROUND
LIGHTNING WILL ALSO BE POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

LANE

Nearby

Flash Flood Warnings in North Carolina, 2003Every flash flood warning in 2003

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.