Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 24, NWS Greenville-Spartanburg, SC

August 22, 2012Henderson County, Polk County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 22, 2012, 11:29 PM EDT for Henderson County, Polk County, Rutherford County, North Carolina. It was in force for 2 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 22, 2012, 11:29 PM EDT (03:29 UTC)
Expired
Aug 23, 2012, 1:33 AM EDT
In force
2 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Henderson County, NC, Polk County, NC, Rutherford County, NC

The radar

The Greer radar (KGSP), 62 km from the middle of the area, began a volume at 03:29 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 00:00Z, 3.5 hours before the alert went out and 308 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 00:00Z on 2012-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 302 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2012-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 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
302 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1500 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-9 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.

327 
WGUS52 KGSP 230329
FFWGSP
NCC089-149-161-230630-
/O.NEW.KGSP.FF.W.0024.120823T0329Z-120823T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1129 PM EDT WED AUG 22 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME WEST CENTRAL RUTHERFORD COUNTY IN WESTERN NORTH CAROLINA...
  NORTH CENTRAL POLK COUNTY IN WESTERN NORTH CAROLINA...
  NORTHEASTERN HENDERSON COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 230 AM EDT

* AT 1127 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. THE AUTOMATED GAUGE AT BAT CAVE ON THE ROCKY BROAD
  RIVER HAS REPORTED 3.5 INCHES OF RAIN IN AN HOUR WITH THESE STORMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BAT
  CAVE...CHIMNEY ROCK...EDNEYVILLE...LAKE ADGER AND LAKE LURE.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
BROAD RIVER...BUFFALLO CREEK...YOUNGS CREEK...HICKORY CREEK...TRIB TO
LAKE LURE...CEDAR CREEK...LAKE LURE...GRASSY CREEK...COVE CREEK...
LITTLE CREEK...CANE CREEK...POOL CREEK...REEDYPATCH CREEK...WALNUT 
CREEK...BRITTEN CREEK...HUNGRY RIVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

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 3546 8213 3534 8220 3533 8240 3547 8242
      3546 8237 3547 8237 3548 8229 3546 8225
      3550 8222

$$

MCAVOY
2 follow-up statements
366 
WGUS72 KGSP 230404
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1204 AM EDT THU AUG 23 2012

NCC089-149-161-230630-
/O.CON.KGSP.FF.W.0024.000000T0000Z-120823T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENDERSON NC-POLK NC-RUTHERFORD NC-
1204 AM EDT THU AUG 23 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EXTREME WEST CENTRAL
RUTHERFORD...NORTH CENTRAL POLK AND NORTHEASTERN HENDERSON COUNTIES
UNTIL 230 AM EDT...

AT 1156 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINFALL DRIFTING SLOWLY 
SOUTHWEST ACROSS THE WARNED AREA. RADAR INDICATED RAINFALL AT RATES 
IN EXCESS OF 3 INCHES PER HOUR FROM LAKE LURE TO BAT CAVE TO NORTH 
OF LAKE ADGER. RAIN GAGES CONFIRMED THESE VALUES...WITH RAINFALL 
TOTALS OF 3.78 INCHES AT BAT CAVE...AND 3.82 INCHES AT SUGARLOAF 
MOUNTAIN. ADDITIONAL RAINFALL AT RATES OF 1 TO 2 INCHES PER HOUR 
WILL LIKELY CONTINUE THROUGH AT LEAST 1 AM EDT.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO  
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...BAT CAVE...CHIMNEY ROCK...EDNEYVILLE...LAKE ADGER AND LAKE 
LURE. THE ROCKY BROAD RIVER...OR STREAMS THAT FEED THE RIVER...MAY 
FLOOD CAMPGROUNDS UPSTREAM FROM LAKE LURE IN THE CHIMNEY ROCK AND 
HICKORY NUT GORGE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 3546 8213 3534 8220 3533 8240 3547 8242
      3546 8237 3547 8237 3548 8229 3546 8225
      3550 8222

$$

HG
134 
WGUS72 KGSP 230533
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
133 AM EDT THU AUG 23 2012

NCC089-149-161-230548-
/O.CAN.KGSP.FF.W.0024.000000T0000Z-120823T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENDERSON NC-POLK NC-RUTHERFORD NC-
133 AM EDT THU AUG 23 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EXTREME WEST
CENTRAL RUTHERFORD...NORTH CENTRAL POLK AND NORTHEASTERN HENDERSON
COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3546 8213 3534 8220 3533 8240 3547 8242
      3546 8237 3547 8237 3548 8229 3546 8225
      3550 8222

$$

NED

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 10:40 PM EDTSpecial Weather StatementGSPPolk35 min
Aug 22, 11:10 PM EDTSpecial Weather StatementGSPHenderson35 min
Aug 23, 2:26 PM EDTSpecial Weather StatementGSPTransylvania49 min
Aug 23, 4:47 PM EDTSpecial Weather StatementGSPBuncombe28 min
Aug 23, 4:54 PM EDTSpecial Weather StatementGSPMadison36 min
Aug 23, 5:24 PM EDTSpecial Weather StatementGSPMadison36 min
Aug 23, 5:46 PM EDTSpecial Weather StatementGSPMadison29 min
Aug 23, 7:38 PM EDTSpecial Weather StatementGSPPolk37 min

Nearby

Flash Flood Warnings in North Carolina, 2012Every flash flood warning in 2012

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.