Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 26, NWS Raleigh, NC

August 6, 2012Montgomery County, Randolph County, Stanly County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Aug 6, 2012, 7:11 PM EDT for Montgomery County, Randolph County, Stanly County, North Carolina. It was in force for 3 hr. 2 reports 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
Aug 6, 2012, 7:11 PM EDT (23:11 UTC)
Expired
Aug 6, 2012, 10:15 PM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Flood severity
None

Counties Montgomery County, NC, Randolph County, NC, Stanly County, NC

The radar

The Raleigh/Durham radar (KRAX), 136 km from the middle of the area, began a volume at 23:13 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
Aug 6, 8:00 PM EDTFLASH FLOOD2 Ssw New London, NCHIGH WATER AT OLD SALISBURY RD AND KENDALLS CHURCH RD... OFFICERS DISPATCHED TO CLOSE ROAD... BUT WATER HAD RETREATED BEFORE THEIR ARRIVAL
Aug 6, 8:00 PM EDTFLASH FLOOD7 Ssw Coleridge, NCBENNETT ROAD AT STATE ROAD 1003 CLOSED...TIME APPROXIMATE

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 12:00Z, 11.2 hours before the alert went out and 65 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 2012-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 854 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 2012-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
854 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
718 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
3 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.

081 
WGUS52 KRAH 062311
FFWRAH
NCC123-151-167-070215-
/O.NEW.KRAH.FF.W.0026.120806T2311Z-120807T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
711 PM EDT MON AUG 6 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONTGOMERY COUNTY IN CENTRAL NORTH CAROLINA
  RANDOLPH COUNTY IN CENTRAL NORTH CAROLINA
  STANLY COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 1015 PM EDT

* AT 704 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER NORTHERN
  STANLY...SOUTHERN RANDOLPH AND NORTHERN MONTGOMERY COUNTIES.       
  DOPPLER RADAR ESTIMATED THAT TWO TO THREE INCHES OF RAIN HAS       
  FALLEN JUST SOUTH OF HIGHWAY 49 SINCE 600 PM. ADDITIONAL RAINFALL  
  AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED WITH THUNDERSTORMS       
  THROUGH 900 PM THIS EVENING.

* LOCATIONS THREATENED WITH FLOODING INCLUDE SEAGROVE...TROY...
  ELDORADO...PLYLER AND ALBEMARLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD.
AS LITTLE AS 6 INCHES OF WATER CAN CAUSE YOU TO LOSE CONTROL OF YOUR
VEHICLE. TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES
INCLUDING SPORT UTILITY VEHICLES AND PICKUP TRUCKS. TURN AROUND...
DONT DROWN.

CAMPERS IN THE WARNED AREA SHOULD MOVE TO HIGHER GROUND 
IMMEDIATELY...AS CREEKS AND STREAMS WILL RISE RAPIDLY.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.

&&

LAT...LON 3550 8030 3551 8007 3561 8006 3572 7955
      3552 7956 3551 7977 3538 7973 3522 8049

$$

VINCENT
3 follow-up statements
412 
WGUS72 KRAH 062343
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
743 PM EDT MON AUG 6 2012

NCC123-151-167-070215-
/O.CON.KRAH.FF.W.0026.000000T0000Z-120807T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY NC-RANDOLPH NC-STANLY NC-
743 PM EDT MON AUG 6 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR
NORTHERN STANLY...SOUTHERN RANDOLPH AND NORTHERN MONTGOMERY
COUNTIES...

AT 736 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS THAT WERE REDEVELOPING OVER THE SAME AREA
PRODUCING FLOODING IN NORTHERN STANLY...SOUTHERN RANDOLPH AND 
NORTHERN MONTGOMERY COUNTIES. DOPPLER RADAR ESTIMATED THAT THREE TO 
FOUR INCHES OF RAIN HAS FALLEN ALONG AND SOUTH OF HIGHWAY 49 SINCE 
600 PM. ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES CAN BE 
EXPECTED THROUGH 930 PM.

LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO 
ALBEMARLE...NEW LONDON...BADIN...EL DORADO...ULAH...AND SEAGROVE.

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.

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.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.

&&

LAT...LON 3550 8030 3551 8007 3561 8006 3572 7955
      3552 7956 3551 7977 3538 7973 3522 8049

$$

VINCENT
947 
WGUS72 KRAH 070053
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
853 PM EDT MON AUG 6 2012

NCC123-151-167-070215-
/O.CON.KRAH.FF.W.0026.000000T0000Z-120807T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY NC-RANDOLPH NC-STANLY NC-
853 PM EDT MON AUG 6 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR
NORTHERN STANLY...SOUTHERN RANDOLPH AND NORTHERN MONTGOMERY
COUNTIES...

AT 846 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE AREAS OF MODERATE TO LOCALLY HEAVY RAIN OVER NORTHERN 
STANLY...SOUTHERN RANDOLPH AND NORTHERN MONTGOMERY COUNTIES. 
ALTHOUGH THUNDERSTORMS HAVE WEAKENED AND RAIN RATES HAVE DECREASED 
SINCE 800 PM...DOPPLER RADAR INDICATED AS MUCH AS THREE TO SIX 
INCHES OF RAIN HAS ALREADY FALLEN ALONG AND SOUTH OF HIGHWAY 49... 
WITH ADDITIONAL RAINFALL LIKELY THROUGH 1000 PM THIS EVENING.

LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO 
ALBEMARLE...NEW LONDON...BADIN...EL DORADO...ULAH...AND SEAGROVE.

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.

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.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.

&&

LAT...LON 3550 8030 3551 8007 3561 8006 3572 7955
      3552 7956 3551 7976 3548 7977 3542 7974
      3527 8045

$$

VINCENT
118 
WGUS72 KRAH 070211
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1011 PM EDT MON AUG 6 2012

NCC123-151-167-070216-
/O.EXP.KRAH.FF.W.0026.000000T0000Z-120807T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY NC-RANDOLPH NC-STANLY NC-
1011 PM EDT MON AUG 6 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM EDT FOR NORTHERN
STANLY...SOUTHERN RANDOLPH AND NORTHERN MONTGOMERY COUNTIES...

HEAVY RAINFALL ENDED OVER THE WARNED AREA SHORTLY AFTER 8 PM...AND 
ADDITIONAL HEAVY RAIN IS NOT EXPECTED AT THIS TIME. AS A RESULT... 
THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3550 8030 3551 8007 3561 8006 3572 7955
      3552 7956 3551 7976 3548 7977 3542 7974
      3527 8045

$$

VINCENT

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 4:21 PM EDTSevere Thunderstorm WarningRAHHalifax, Warren39 min
Aug 6, 5:22 PM EDTSpecial Weather StatementRAHChatham38 min
Aug 6, 5:41 PM EDTSpecial Weather StatementRAHRichmond34 min
Aug 6, 5:54 PM EDTSpecial Weather StatementRAHFranklin66 min
Aug 6, 5:55 PM EDTSevere Thunderstorm WarningRAHMontgomery, Moore, Richmond, Scotland29 min
Aug 6, 6:24 PM EDTSpecial Weather StatementRAHRandolph51 min
Aug 6, 6:26 PM EDTAreal Flood AdvisoryRAHDavidson, Montgomery, Randolph, Stanly3 hr
Aug 6, 6:29 PM EDTSpecial Weather StatementRAHWayne61 min
Aug 6, 6:39 PM EDTSpecial Weather StatementRAHMontgomery36 min
Aug 6, 7:32 PM EDTSpecial Weather StatementRAHChatham58 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.