Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 29, NWS Greenville-Spartanburg, SC

September 3, 2012Davie County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 3, 2012, 2:19 PM EDT for Davie County, North Carolina. It was in force for 4 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 3, 2012, 2:19 PM EDT (18:19 UTC)
Expired
Sep 3, 2012, 6:30 PM EDT
In force
4 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

County Davie County, NC

The radar

The Roanoke radar (KFCX), 128 km from the middle of the area, began a volume at 18:20 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.3 hours before the alert went out and 53 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 12:00Z on 2012-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 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 12:00Z on 2012-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.1939Sfc1 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
576 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
801 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
44 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.

238 
WGUS52 KGSP 031819
FFWGSP
NCC059-032230-
/O.NEW.KGSP.FF.W.0029.120903T1819Z-120903T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
219 PM EDT MON SEP 3 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN DAVIE COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 630 PM EDT

* AT 215 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
WARNED AREA. RAINFALL AMOUNTS OVER THE PAST 2 HOURS HAVE BEEN AROUND 
2 INCHES AND MORE STORMS ARE DEVELOPING TO THE SOUTH OF THE AREA. 
THESE NEW STORMS WILL MOVE ACROSS THIS AREA... BRING AN ADDITIONAL 1 
TO 2 INCHES OF RAIN.  

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ADVANCE...BERMUDA RUN AND COOLEEMEE.

REPORTS OF ROADWAY FLOODING ALONG HIGHWAY 801 AND 64 HAVE ALL READY 
BEEN REPORTED.  DUTCHMAN CREEK WILL LIKELY GO ABOVE BANKFULL 
FLOODING ADDITIONAL ROADS AND FARM FIELDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 3589 8039 3588 8041 3587 8040 3583 8042
      3582 8047 3575 8046 3578 8048 3578 8051
      3582 8057 3600 8050 3601 8041 3599 8041
      3597 8039 3592 8038

$$
PAT
2 follow-up statements
337 
WGUS72 KGSP 031935
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
335 PM EDT MON SEP 3 2012

NCC059-032230-
/O.CON.KGSP.FF.W.0029.000000T0000Z-120903T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIE NC-
335 PM EDT MON SEP 3 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN DAVIE COUNTY
UNTIL 630 PM EDT...

AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR HAD ESTIMATED 
4 TO 6 INCHES OF RAINFALL ACROSS THE WARNED AREA. THE HEAVY RAIN HAS 
EXITED TO THE EAST...BUT ADDITIONAL STORMS MAY REDEVELOP ACROSS THE 
WARNED AREA WITHIN THE NEXT COUPLE OF HOURS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
ADVANCE...BERMUDA RUN AND COOLEEMEE.

HIGHWAY 801 AND 64 ARE STILL FLOODED. DUTCHMAN CREEK WILL LIKELY 
COME OUT OF ITS BANKS IF IT HAS NOT ALREADY DONE SO...FLOODING 
ADDITIONAL ROADS AND FARM FIELDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

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 3589 8039 3588 8041 3587 8040 3583 8042
      3582 8047 3575 8046 3578 8048 3578 8051
      3582 8057 3600 8050 3601 8041 3599 8041
      3597 8039 3592 8038

$$

ARK
875 
WGUS72 KGSP 032221
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
621 PM EDT MON SEP 3 2012

NCC059-032236-
/O.EXP.KGSP.FF.W.0029.000000T0000Z-120903T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIE NC-
621 PM EDT MON SEP 3 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN DAVIE
COUNTY WILL BE ALLOWED TO EXPIRE AT 630 PM EDT...

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 3589 8039 3588 8041 3587 8040 3583 8042
      3582 8047 3575 8046 3578 8048 3578 8051
      3582 8057 3600 8050 3601 8041 3599 8041
      3597 8039 3592 8038

$$

ARK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 12:51 PM EDTAreal Flood AdvisoryGSPDavie99 min
Sep 3, 1:08 PM EDTSpecial Weather StatementGSPUnion37 min
Sep 3, 2:37 PM EDTSpecial Weather StatementGSPUnion38 min
Sep 3, 2:43 PM EDTSpecial Weather StatementGSPRowan47 min
Sep 3, 3:04 PM EDTSpecial Weather StatementGSPPolk41 min
Sep 3, 3:09 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford32 min
Sep 3, 3:20 PM EDTSpecial Weather StatementGSPUnion40 min
Sep 3, 3:32 PM EDTSpecial Weather StatementGSPCatawba, Lincoln43 min
Sep 3, 3:46 PM EDTSpecial Weather StatementGSPRutherford44 min
Sep 3, 3:48 PM EDTSpecial Weather StatementGSPCleveland, Rutherford42 min
Sep 3, 4:06 PM EDTSpecial Weather StatementGSPMecklenburg24 min
Sep 3, 4:14 PM EDTSpecial Weather StatementGSPUnion46 min
Sep 3, 4:19 PM EDTSpecial Weather StatementGSPAlexander, Caldwell, Davie, Iredell56 min
Sep 3, 4:51 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell, Rowan39 min
Sep 3, 4:55 PM EDTSpecial Weather StatementGSPMecklenburg50 min
Sep 3, 5:19 PM EDTSevere Thunderstorm WarningGSPGaston, Mecklenburg56 min
Sep 3, 5:30 PM EDTSpecial Weather StatementGSPDavie, Iredell45 min
Sep 3, 5:32 PM EDTAreal Flood AdvisoryGSPCabarrus, Gaston, Lincoln, Mecklenburg, Union118 min
Sep 3, 5:55 PM EDTSpecial Weather StatementGSPLincoln35 min
Sep 3, 6:11 PM EDTAreal Flood AdvisoryGSPDavie, Iredell, Rowan109 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.