Alert archive / Georgia / Flash Flood Warnings in 2001

Flash Flood Warning 9, NWS Greenville-Spartanburg, SC

June 25, 2001Rabun County, Georgia

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jun 25, 2001, 12:03 PM EDT for Rabun County, Georgia. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 25, 2001, 12:03 PM EDT (16:03 UTC)
Expired: Jun 25, 2001, 2:00 PM EDT
In force: 117 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Rabun County, GA

The radar

The Greer radar (KGSP), 108 km from the middle of the area, began a volume at 16:04 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, 4.1 hours before the alert went out and 196 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 239 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 886 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: -10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KGSP 251609
FFWGSP
GAC241-251800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1203 PM EDT MON JUN 25 2001

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RABUN COUNTY IN NORTHEAST GEORGIA

* UNTIL 200 PM EDT

* AT 1154 AM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED NEARLY
  STATIONARY THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER
  NORTHERN RABUN COUNTY. THE HEAVIEST DOWNPOURS WERE JUST SOUTH OF
  SKY VALLEY AND NORTH OF MOUNTAIN CITY WITH RAINFALL RATES IN
  EXCESS OF 2 INCHES PER HOUR.

* THESE THUNDERSTORMS WILL REMAIN NEARLY STATIONARY AND WILL PRODUCE
  FLOODING ALONG STREAMS AND CREEKS GENERALLY NORTH OF CLAYTON.
  ROUTE 23 FROM DILLARD TO CLAYTON...AND WARWOMAN ROAD EAST OF
  CLAYTON...ARE MOST LIKELY TO BE AFFECTED BY RISING WATER.

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.

$$
HG

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 Jun 25, 10:30 AM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jun 25, 10:30 AM EDT, 1 hour 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1030 AM EDT MON JUN 25 2001

12Z HAND ANALYSIS SHOWED A 40 KT JET ON THE W SIDE OF H5 UPPER LOW.
LOOKING AT THE WATER VAPOR IMAGE...THE LOW SEEMS TO BE RESPONDING TO
THIS JET WITH A RATHER QUICK WESTWARD PROPAGATION THIS MORNING. IN
FACT...THE CENTER OF THE LOW ATTM SEEMS TO BE OVER EXTREME ERN TN.

AS A RESULT...WE ARE NOW IN A DEEP SLY FLOW...EXCEPT AT THE SFC
WHERE WNDS ARE NE. THIS IS A PERFECT ANCHORING FLOW. ATTM THERE ARE
ALREADY SOME SHRA/TSRA OVER NE GA THAT HAVE NOT MOVED AND MORE
CONVECTION IN ANDERSON COUNTY SLOWLY WORKING TOWARD THE MTNS.
FORTUNATELY...THESE AREAS HAVE SEEN VERY LITTLE RAIN THE PAST FEW
DAYS.

ALSO...CHS SOUNDING HAD A PRONOUNCED DRY SLOT AOB 700 MB. AS THIS
SPREADS IN...POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS WL INCREASE
AS THE AFTN WEARS ON. WL KEEP FFA FOR THE ERN ZONES THROUGH
NOON...NO POINT IN CANCELING A WATCH ANY SOONER THAN NEED BE.
HOWEVER...WL NOT ISSUE ANYTHING FOR THE AFTN HOURS.

OTRW...TEMPS AND POPS LOOK PRETTY GOOD FOR THE AFTN. WL BUMP UP
TEMPS A COUPLE DEGREES IN THE ERN ZONES WHERE IS A FAIR AMOUNT OF
SUN ATTM.

FCSTID = 14
GSP   79  66  83  66 /  70  50  40  30
AND   80  65  85  65 /  70  60  50  40
CLT   78  65  82  65 /  70  50  40  30
HKY   75  62  80  62 /  70  60  50  40
AVL   72  60  75  60 /  70  70  60  50

.GSP...
GA...NONE.
NC...FLASH FLOOD WATCH FOR THIS MORNING FOR ZONES
NCZ035>037...NCZ056>057...NCZ068>072...NCZ082.

SC...FLASH FLOOD WATCH FOR THIS MORNING FOR ZONES
SCZ007>009...SCZ013>014.

MCAVOY

In the hours before

Special weather statement, Jun 25, 11:10 AM EDT, 53 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-252100-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1110 AM EDT MON JUN 25 2001

...VERY HEAVY RAIN AND A FEW SEVERE THUNDERSTORMS POSSIBLE THIS
AFTERNOON AND EVENING...

AN UNSEASONABLY STRONG UPPER LEVEL LOW WILL DRIFT SLOWLY WEST ACROSS
THE REGION THIS AFTERNOON. LAST NIGHT...THIS SAME LOW BROUGHT AS
MUCH AS 6 INCHES OF RAIN TO THE CAROLINA PIEDMONT. AS THE ATMOSPHERE
HEATS UP THIS AFTERNOON...WIDESPREAD SHOWERS AND THUNDERSTORMS WILL
DEVELOP. THE STORMS WILL MOVE VERY SLOWLY. IN FACT...STORMS WHICH
DEVELOP IN THE MOUNTAINS AND FOOTHILLS MAY NOT MOVE AT AT ALL.

THUS THE POTENTIAL EXISTS FOR SOME LOCATIONS TO RECEIVE SEVERAL
INCHES OF RAIN LATE THIS AFTERNOON AND EVENING. A FLASH FLOOD WATCH
HAS NOT BEEN ISSUED AS THE AREAS WHERE HEAVY RAIN APPEARS MOST
LIKELY HAVE NOT SEEN VERY HEAVY RAINFALL OVER THE PAST 24 HOURS.
HOWEVER...IF HEAVY RAIN DOES DEVELOP...WATCHES MAY BE NEED FOR PARTS
OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA.

IN ADDITION TO THE HEAVY RAIN...COLD AND RATHER DRY AIR ALOFT WILL
ALLOW SOME OF THE THUNDERSTORMS TO PRODUCE DAMAGING WINDS AND HAIL
UP TO THE SIZE OF QUARTERS.

SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY LATE THIS
AFTERNOON AND THIS EVENING. DISPATCHERS SHOULD ENSURE COUNTY
EMERGENCY MANAGEMENT OFFICIALS ARE AWARE OF THIS INFORMATION.

MCAVOY

Local storm report, Jun 25, 11:55 AM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1155 AM EDT MON JUN 25 2001

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1144 AM    CLAYTON                   GA   1.75 INCH HAIL
06/25/01   RABUN                          CLAYTON 911 CENTER
                                          REPORTED HAIL NOW ENDED
                                          BUT DIME TO GOLFBALL SIZE
                                          JUST PRIOR AT 1140 AM.

TJB

Nearby

Flash Flood Warnings in Georgia, 2001 Every flash flood warning in 2001

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.