Alert archive / North Carolina / Flash Flood Warnings in 2011

Flash Flood Warning 3, NWS Greenville-Spartanburg, SC

March 6, 2011Henderson County, Polk County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Mar 6, 2011, 5:19 AM EST for Henderson County, Polk County, Rutherford 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, 5:19 AM EST (10:19 UTC)
Expired
Mar 6, 2011, 11:30 AM EST
In force
6 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), 55 km from the middle of the area, began a volume at 10:20 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

TimeReportWhereRemark
Mar 6, 9:05 AM ESTFLASH FLOODHendersonville, NCAIRPORT RD... GREENVILLE HWY... AND WHITE ST FLOODED

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

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 10.3 hours before the alert went out and 236 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, Greensboro/Hi Pt, NC at 00:00Z on 2011-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Greensboro/Hi Pt, NC at 00:00Z on 2011-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1135 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
302 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.

267 
WGUS52 KGSP 061019
FFWGSP
NCC089-149-161-061630-
/O.NEW.KGSP.FF.W.0003.110306T1019Z-110306T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 1130 AM EST

* AT 516 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL RATES 
  OF A HALF INCH TO AN INCH AN HOUR WERE AFFECTING MOST OF 
  HENDERSON...POLK AND RUTHERFORD COUNTIES.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. MANY STREAMS IN CENTRAL HENDERSON COUNTY WERE 
  APPROACHING BANKFULL. AS THE HEAVY RAIN WILL CONTINUE FOR A FEW
  MORE HOURS...SEVERAL ROADS IN THE HENDERSONVILLE AREA WILL SOON
  BECOME FLOODED.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN VEHICLES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...
OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A
SMALL ONE...ON FOOT OR IN A VEHICLE.

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 3552 8197 3519 8211 3520 8228 3518 8237
      3521 8240 3517 8244 3515 8257 3530 8260
      3543 8271 3544 8260 3543 8253 3544 8252
      3546 8244 3546 8225 3553 8218 3552 8214

$$
MCAVOY
2 follow-up statements
826 
WGUS72 KGSP 061410
FFSGSP

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

NCC089-149-161-061630-
/O.CON.KGSP.FF.W.0003.000000T0000Z-110306T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENDERSON NC-POLK NC-RUTHERFORD NC-
910 AM EST SUN MAR 6 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL
RUTHERFORD...POLK AND HENDERSON COUNTIES UNTIL 1130 AM EST...

AT 900 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
CONTINUED HEAVY RAINFALL ACROSS HENDERSON...POLK...AND RUTHERFORD 
COUNTIES. STORM TOTAL RAINFALL HAS GENERALLY BEEN BETWEEN 2 AND 4 
INCHES OVER THE PAST 24 HOURS...AND ADDITIONAL HEAVY RAINFALL AT 
RATES OF ONE QUARTER TO ONE HALF INCH PER HOUR ARE LIKELY THROUGH 11 
AM.

FLOODING IS VERY LIKELY TO DEVELOP ALONG MUD CREEK AND BAT FORK 
CREEK IN THE FLAT ROCK COMMUNITY...AND ALSO ALONG ROCK CREEK AND THE 
GREEN RIVER AREA IN THE SOUTHERN PART OF THE COUNTY. NEARBY LOW 
LYING ROADWAYS COULD BECOME FLOODED. DEEP STANDING WATER MAY ALSO BE 
HAZARDOUS IN LOW SPOTS.

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. TURN AROUND AND FIND ANOTHER ROUTE.

PLEASE REPORT ANY FLOODING TO THE NATIONAL WEATHER SERVICE AUTOMATED 
REPORTING LINE AT 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3552 8197 3519 8211 3520 8228 3518 8237
      3521 8240 3517 8244 3515 8257 3530 8260
      3543 8271 3544 8260 3543 8253 3544 8252
      3546 8244 3546 8225 3553 8218 3552 8214

$$

GERAPETRITIS
365 
WGUS72 KGSP 061624
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1124 AM EST SUN MAR 6 2011

NCC089-149-161-061637-
/O.EXP.KGSP.FF.W.0003.000000T0000Z-110306T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENDERSON NC-POLK NC-RUTHERFORD NC-
1124 AM EST SUN MAR 6 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WEST CENTRAL
RUTHERFORD...POLK AND HENDERSON COUNTIES WILL BE ALLOWED TO EXPIRE AT
1130 AM EST...

THIS FLASH FLOOD WARNING HAS BEEN REPLACED BY A FLOOD WARNING UNTIL 
200 PM EST FOR LINGERING HIGH WATER CONDITIONS ACROSS WEST CENTRAL 
RUTHERFORD...POLK AND HENDERSON COUNTIES. PLEASE REFER TO THE ACTIVE 
FLOOD WARNING FOR FURTHER DETAILS. 


LAT...LON 3552 8197 3519 8211 3520 8228 3518 8237
      3521 8240 3517 8244 3515 8257 3530 8260
      3543 8271 3544 8260 3543 8253 3544 8252
      3546 8244 3546 8225 3553 8218 3552 8214

$$

PAT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 12:22 AM ESTFlash Flood WarningGSPJackson, Transylvania6 hr
Mar 6, 2:47 AM ESTAreal Flood AdvisoryGSPMacon103 min
Mar 6, 3:53 AM ESTAreal Flood AdvisoryGSPHenderson, Polk, Rutherford3 hr
Mar 6, 4:17 AM ESTFlash Flood WarningGSPMacon6 hr
Mar 6, 4:35 AM ESTAreal Flood AdvisoryGSPAvery, Burke, Caldwell, McDowell, Mitchell3 hr
Mar 6, 5:28 AM ESTAreal Flood AdvisoryGSPGraham, Haywood, Jackson, Macon, Swain3 hr
Mar 6, 6:29 AM ESTFlash Flood WarningGSPJackson, Transylvania4 hr
Mar 6, 8:12 AM ESTRiver Flood WarningGSPHenderson, Transylvania56 hr
Mar 6, 9:35 AM ESTAreal Flood AdvisoryGSPAlexander, Avery, Burke, Caldwell, Catawba, Cleveland and 6 more6 hr
Mar 6, 9:37 AM ESTWinter Weather AdvisoryGSPAvery, Haywood, Madison, Mitchell, Swain, Yancey7 hr
Mar 6, 9:49 AM ESTAreal Flood WarningGSPMacon3 hr
Mar 6, 10:21 AM ESTAreal Flood WarningGSPJackson, Transylvania3 hr
Mar 6, 11:13 AM ESTAreal Flood WarningGSPHenderson, Polk, Rutherford3 hr
Mar 6, 11:54 AM ESTSpecial Weather StatementGSPCabarrus, Mecklenburg51 min
Mar 6, 12:29 PM ESTAreal Flood AdvisoryGSPMacon3 hr
Mar 6, 12:29 PM ESTFlash Flood WarningGSPBurke, Caldwell, McDowell4 hr
Mar 6, 12:42 PM ESTAreal Flood AdvisoryGSPJackson, Transylvania6 hr
Mar 6, 1:44 PM ESTAreal Flood AdvisoryGSPHenderson, Polk, Rutherford4 hr
Mar 6, 2:36 PM ESTRiver Flood AdvisoryGSPMadison7 hr
Mar 6, 2:54 PM ESTRiver Flood AdvisoryGSPBuncombe24 hr
Mar 6, 4:40 PM ESTAreal Flood WarningGSPBurke5 hr
Mar 6, 5:40 PM ESTAreal Flood AdvisoryGSPHenderson3 hr
Mar 6, 6:32 PM ESTAreal Flood AdvisoryGSPTransylvania3 hr

Nearby

Flash Flood Warnings in North Carolina, 2011Every 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.