Alert archive / Georgia / Flash Flood Warnings in 2011

Flash Flood Warning 2, NWS Greenville-Spartanburg, SC

March 6, 2011Habersham County, Rabun County, Georgia; Oconee County, South Carolina; Macon County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Mar 6, 2011, 4:17 AM EST for Habersham County, Rabun County, Georgia; Oconee County, South Carolina; Macon County, North Carolina. It was in force for 6 hr. 1 report 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: Mar 6, 2011, 4:17 AM EST (09:17 UTC)
Expired: Mar 6, 2011, 10:00 AM EST
In force: 6 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Flood severity: None

Counties Habersham County, GA, Rabun County, GA, Macon County, NC, Oconee County, SC

The radar

The Greer radar (KGSP), 107 km from the middle of the area, began a volume at 09:16 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

Time	Report	Where	Remark
Mar 6, 8:15 AM EST	FLASH FLOOD	Clarkesville, GA	PITTS PARK CLOSED BUILDINGS AND ROADS IN PARK FLOODED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 9.3 hours before the alert went out and 192 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: 10 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 581 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 319 m²/s²
0-3 km storm-relative helicity: 262 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.

506 
WGUS52 KGSP 060917
FFWGSP
GAC137-241-NCC113-SCC073-061500-
/O.NEW.KGSP.FF.W.0002.110306T0917Z-110306T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
417 AM EST SUN MAR 6 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN HABERSHAM COUNTY IN NORTHEAST GEORGIA...
  NORTHERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...
  RABUN COUNTY IN NORTHEAST GEORGIA...
  SOUTHERN MACON COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 1000 AM EST

* AT 409 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. AUTOMATED 
  GAUGES INDICATED THAT BETWEEN 3 AND 4 INCHES OF RAIN HAD FALLEN 
  OVER MUCH OF RABUN COUNTY...SOUTHERN MACON COUNTY AND NORTHWESTERN
  OCONEE COUNTY. HEAVY RAIN WILL CONTINUE FOR A FEW MORE HOURS AND 
  AN ADDITIONAL 1 TO 2 INCHES OR RAINFALL IS EXPECTED IN THE 
  WARNING AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. THE CHATTOOGA RIVER AT BURRELLS FORD WAS NEARING BANKFULL.
  ROADS IN THIS AREA ARE LIKELY TO START TO FLOOD WITHIN THE NEXT
  COUPLE HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

TO REPORT HIGH WATER...FLOODING...MUDSLIDES...LANDSLIDES OR OTHER
SEVERE WEATHER THROUGH OUR AUTOMATED REPORTING SYSTEM...CALL OUR TOLL
FREE NUMBER... 1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3497 8352 3509 8357 3509 8316 3506 8316
      3499 8310 3504 8293 3484 8292 3466 8330
      3468 8335 3463 8339 3457 8351 3464 8363
      3469 8365 3476 8363 3477 8367 3480 8368

$$
MCAVOY

3 follow-up statements

282 
WGUS72 KGSP 061047
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
547 AM EST SUN MAR 6 2011

GAC137-241-NCC113-SCC073-061500-
/O.CON.KGSP.FF.W.0002.000000T0000Z-110306T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HABERSHAM GA-RABUN GA-MACON NC-OCONEE SC-
547 AM EST SUN MAR 6 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN OCONEE...
SOUTHERN MACON...RABUN AND NORTHERN HABERSHAM COUNTIES UNTIL 1000 AM
EST...

AT 544 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN 
AREA OF MODERATE TO HEAVY RAINFALL ACROSS THE WARNED AREA. AUTOMATED 
RAIN GAUGES INDICATE THAT ANYWHERE FROM 3 TO 4.5 INCHES OF RAIN HAS 
FALLEN OVER THE PAST 24 HOURS. WHILE THE HEAVIEST RAIN HAS MOVED 
EAST OF THE WARNING AREA...ANOTHER BATCH OF HEAVY RAIN OVER CENTRAL 
GEORGIA IS EXPECTED TO MOVE INTO THE AREA IN ABOUT AN HOUR. 

RUNOFF FROM THE EARLIER EXCESSIVE RAINFALL IS STILL EXPECTED TO 
CAUSE FLASH FLOODING TO OCCUR...PARTICULARLY ALONG THE STREAMS THAT 
FEED INTO THE CHATTOOGA RIVER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

&&

LAT...LON 3497 8352 3509 8357 3509 8316 3506 8316
      3499 8310 3504 8293 3484 8292 3466 8330
      3468 8335 3463 8339 3457 8351 3464 8363
      3469 8365 3476 8363 3477 8367 3480 8368

$$
MCAVOY

653 
WGUS72 KGSP 061408
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
908 AM EST SUN MAR 6 2011

GAC137-241-NCC113-SCC073-061500-
/O.CON.KGSP.FF.W.0002.000000T0000Z-110306T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HABERSHAM GA-RABUN GA-MACON NC-OCONEE SC-
908 AM EST SUN MAR 6 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN OCONEE...
SOUTHERN MACON...RABUN AND NORTHERN HABERSHAM COUNTIES UNTIL 1000 AM
EST...

AT 903 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATED AN AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
RAINFALL AMOUNTS UP TO 3.5 INCHES HAVE FALL OVER THE PAST 24 HOURS 
AND ANOTHER ONE HALF TO ONE INCH IS EXPECTED.  

HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...CLARKESVILLE...
CLAYTON...BATESVILLE...DILLARD...HIGHLANDS...LAKE BURTON...LAKE
KEOWEE...LAKE RABUN...LAKEMONT...LONG CREEK...MOUNTAIN CITY...
MOUNTAIN REST...NACOOHE LAKE...OTTO...PINE MOUNTAIN...SALEM...
TALLULAH FALLS AND TURNERVILLE.

THE RIVER GAGE ON THE SOQUE RIVER WAS AT 11.8 FT AND IS EXPECTED TO 
RISE TO ABOVE FLOOD STAGE WITHIN THE NEXT FEW HOURS. THE RIVER WILL 
FLOOD PITTS PARK AND LOW LYING AREAS NEAR THE RIVER. OTHER AREAS 
THAT WILL LIKELY FLOOD WILL BE ALONG THE CHATTOOGA RIVER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

&&

LAT...LON 3497 8352 3509 8357 3509 8316 3506 8316
      3499 8310 3504 8293 3484 8292 3466 8330
      3468 8335 3463 8339 3457 8351 3464 8363
      3469 8365 3476 8363 3477 8367 3480 8368

$$

PAT

256 
WGUS72 KGSP 061452
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
952 AM EST SUN MAR 6 2011

GAC137-241-NCC113-SCC073-061506-
/O.EXP.KGSP.FF.W.0002.000000T0000Z-110306T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HABERSHAM GA-RABUN GA-MACON NC-OCONEE SC-
952 AM EST SUN MAR 6 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN OCONEE...
SOUTHERN MACON...RABUN AND NORTHERN HABERSHAM COUNTIES WILL BE
ALLOWED TO EXPIRE AT 1000 AM EST...

THIS FLASH FLOOD WARNING HAS BEEN REPLACED WITH A FLOOD WARNING 
THROUGH 1230 PM FOR LINGERING HIGH WATER CONDITIONS. PLEASE REFER TO 
THE ACTIVE FLOOD WARNING FOR FURTHER DETAILS.

LAT...LON 3497 8352 3509 8357 3509 8316 3506 8316
      3499 8310 3504 8293 3484 8292 3466 8330
      3468 8335 3463 8339 3457 8351 3464 8363
      3469 8365 3476 8363 3477 8367 3480 8368

$$

GERAPETRITIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 6, 12:35 AM EST	Areal Flood Advisory	GSP	Habersham, Rabun	115 min
Mar 6, 2:47 AM EST	Areal Flood Advisory	GSP	Habersham, Rabun	103 min
Mar 6, 9:49 AM EST	Areal Flood Warning	GSP	Habersham, Rabun	3 hr
Mar 6, 12:29 PM EST	Areal Flood Advisory	GSP	Habersham, Rabun	3 hr
Mar 6, 3:53 AM EST	Areal Flood Advisory	GSP	Greenville	3 hr
Mar 6, 11:48 AM EST	Areal Flood Advisory	GSP	Greenville, Spartanburg	102 min
Mar 6, 3:47 PM EST	Areal Flood Advisory	GSP	Greenville	103 min
Mar 6, 5:51 PM EST	Areal Flood Advisory	GSP	Spartanburg	3 hr
Mar 6, 12:22 AM EST	Flash Flood Warning	GSP	Jackson, Transylvania	6 hr
Mar 6, 4:35 AM EST	Areal Flood Advisory	GSP	Avery, Burke, Caldwell, McDowell, Mitchell	3 hr
Mar 6, 5:19 AM EST	Flash Flood Warning	GSP	Henderson, Polk, Rutherford	6 hr
Mar 6, 5:28 AM EST	Areal Flood Advisory	GSP	Graham, Haywood, Jackson, Macon, Swain	3 hr
Mar 6, 6:29 AM EST	Flash Flood Warning	GSP	Jackson, Transylvania	4 hr
Mar 6, 8:12 AM EST	River Flood Warning	GSP	Henderson, Transylvania	56 hr
Mar 6, 9:35 AM EST	Areal Flood Advisory	GSP	Alexander, Avery, Burke, Caldwell, Catawba, Cleveland and 6 more	6 hr
Mar 6, 9:37 AM EST	Winter Weather Advisory	GSP	Avery, Haywood, Madison, Mitchell, Swain, Yancey	7 hr
Mar 6, 10:21 AM EST	Areal Flood Warning	GSP	Jackson, Transylvania	3 hr
Mar 6, 11:13 AM EST	Areal Flood Warning	GSP	Henderson, Polk, Rutherford	3 hr
Mar 6, 11:54 AM EST	Special Weather Statement	GSP	Cabarrus, Mecklenburg	51 min
Mar 6, 12:29 PM EST	Flash Flood Warning	GSP	Burke, Caldwell, McDowell	4 hr
Mar 6, 12:42 PM EST	Areal Flood Advisory	GSP	Jackson, Transylvania	6 hr
Mar 6, 1:44 PM EST	Areal Flood Advisory	GSP	Henderson, Polk, Rutherford	4 hr
Mar 6, 2:36 PM EST	River Flood Advisory	GSP	Madison	7 hr
Mar 6, 2:54 PM EST	River Flood Advisory	GSP	Buncombe	24 hr
Mar 6, 4:40 PM EST	Areal Flood Warning	GSP	Burke	5 hr
Mar 6, 5:40 PM EST	Areal Flood Advisory	GSP	Henderson	3 hr
Mar 6, 6:32 PM EST	Areal Flood Advisory	GSP	Transylvania	3 hr

Nearby

Flash Flood Warnings in Georgia, 2011 Flash Flood Warnings in South Carolina, 2011 Flash Flood Warnings in North Carolina, 2011 Every flash flood warning in 2011

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.