Alert archive / North Carolina / Flash Flood Warnings in 2011

Flash Flood Warning 36, NWS Raleigh, NC

August 13, 2011Scotland County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Aug 13, 2011, 10:24 AM EDT for Scotland County, North Carolina. It was in force for 3 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 13, 2011, 10:24 AM EDT (14:24 UTC)
Expired
Aug 13, 2011, 1:15 PM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Flood severity
None

County Scotland County, NC

The radar

The Raleigh/Durham radar (KRAX), 134 km from the middle of the area, began a volume at 14:24 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, 2.4 hours before the alert went out and 146 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 2011-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.1000850700500300200100-30°-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 2011-08-13The 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
6909 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
126 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.

331 
WGUS52 KRAH 131424
FFWRAH
NCC165-131715-
/O.NEW.KRAH.FF.W.0036.110813T1424Z-110813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
1024 AM EDT SAT AUG 13 2011

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SCOTLAND COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 115 PM EDT

* AT 1020 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR            
  INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING    
  OVER SOUTHERN SCOTLAND COUNTY. DOPPLER RADAR ESTIMATED THAT ONE TO 
  TWO INCHES OF RAIN HAS ALREADY FALLEN OVER EXTREME SOUTHERN        
  SCOTLAND COUNTY. ADDITIONAL HEAVY RAINFALL IS EXPECTED OVER MUCH   
  OF SOUTHERN SCOTLAND COUNTY THROUGH EARLY AFTERNOON.

* LOCATIONS THREATENED WITH FLOODING INCLUDE LAURINBURG...LAUREL     
  HILL...AND OTHER AREAS NEAR THE SOUTH CAROLINA BORDER.

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.

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 3481 7969 3482 7964 3482 7962 3484 7962
      3485 7963 3490 7957 3489 7935 3486 7934
      3482 7935 3476 7933 3463 7946 3463 7947

$$

VINCENT
3 follow-up statements
630 
WGUS72 KRAH 131450
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1050 AM EDT SAT AUG 13 2011

NCC165-131715-
/O.CON.KRAH.FF.W.0036.000000T0000Z-110813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTLAND NC-
1050 AM EDT SAT AUG 13 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR
SOUTHERN SCOTLAND COUNTY...

AT 1040 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS WITH VERY HEAVY RAIN OVER EXTREME SOUTHERN 
SCOTLAND COUNTY. DOPPLER RADAR ESTIMATED THAT AS MUCH AS 3 INCHES OF 
RAIN HAS FALLEN NEAR THE SOUTH CAROLINA BORDER SINCE 945 AM.

ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER SOUTHERN 
SCOTLAND COUNTY THROUGH 115 PM...PARTICULARLY NEAR THE SOUTH 
CAROLINA BORDER.

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.

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 3481 7969 3482 7964 3482 7962 3483 7962
      3484 7961 3486 7958 3484 7939 3481 7935
      3476 7933 3463 7946 3463 7947

$$

VINCENT
281 
WGUS72 KRAH 131631
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1231 PM EDT SAT AUG 13 2011

NCC165-131715-
/O.CON.KRAH.FF.W.0036.000000T0000Z-110813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTLAND NC-
1231 PM EDT SAT AUG 13 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR
SOUTHERN SCOTLAND COUNTY...

AT 1221 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE HEAVY RAIN OVER SOUTHERN SCOTLAND COUNTY. ALTHOUGH NO 
REPORTS OF FLOODING HAVE BEEN RECEIVED YET IN SCOTLAND COUNTY... 
MULTIPLE REPORTS OF FLASH FLOODING HAVE BEEN RECEIVED JUST ACROSS 
THE STATE LINE IN THE TOWN OF MCCOLL IN MARLBORO COUNTY. ADDITIONAL 
RAINFALL AMOUNTS OF UP TO AN INCH WILL BE POSSIBLE THROUGH 115 PM IN 
SCOTLAND COUNTY...AND FLASH FLOODING REMAINS POSSIBLE...ESPECIALLY 
NEAR THE SOUTH CAROLINA BORDER.

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.

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 3481 7969 3482 7964 3482 7962 3483 7962
      3484 7961 3486 7958 3484 7939 3481 7935
      3476 7933 3463 7946 3463 7947

$$

VINCENT
030 
WGUS72 KRAH 131718
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
118 PM EDT SAT AUG 13 2011

NCC165-131727-
/O.EXP.KRAH.FF.W.0036.000000T0000Z-110813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTLAND NC-
118 PM EDT SAT AUG 13 2011

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHERN SCOTLAND
COUNTY...

RAINFALL HAS ENDED OVER SCOTLAND COUNTY...AND THE FLASH FLOOD 
WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3481 7969 3482 7964 3482 7962 3483 7962
      3484 7961 3486 7958 3484 7939 3481 7935
      3476 7933 3463 7946 3463 7947

$$

VINCENT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 5:56 AM EDTAreal Flood AdvisoryRAHMontgomery, Moore3 hr
Aug 13, 8:51 AM EDTAreal Flood AdvisoryRAHRichmond, Scotland3 hr
Aug 13, 8:53 AM EDTAreal Flood AdvisoryRAHMoore97 min
Aug 13, 9:01 AM EDTAreal Flood AdvisoryRAHDavidson, Randolph89 min
Aug 13, 9:23 AM EDTSpecial Weather StatementRAHMoore52 min
Aug 13, 9:36 AM EDTFlash Flood WarningRAHMoore95 min
Aug 13, 9:51 AM EDTSpecial Weather StatementRAHScotland39 min
Aug 13, 9:55 AM EDTAreal Flood AdvisoryRAHScotland95 min
Aug 13, 10:10 AM EDTSevere Thunderstorm WarningRAHScotland50 min
Aug 13, 10:27 AM EDTSpecial Weather StatementRAHHarnett48 min
Aug 13, 11:06 AM EDTAreal Flood AdvisoryRAHHoke54 min
Aug 13, 11:16 AM EDTSpecial Weather StatementRAHScotland29 min
Aug 13, 11:20 AM EDTAreal Flood AdvisoryRAHChatham100 min
Aug 13, 12:06 PM EDTAreal Flood AdvisoryRAHMoore84 min
Aug 13, 12:22 PM EDTAreal Flood AdvisoryRAHCumberland98 min
Aug 13, 12:37 PM EDTAreal Flood AdvisoryRAHHarnett, Lee, Wake83 min
Aug 13, 12:42 PM EDTSpecial Weather StatementRAHWake48 min
Aug 13, 12:45 PM EDTSpecial Weather StatementRAHCumberland45 min
Aug 13, 1:43 PM EDTSpecial Weather StatementRAHJohnston47 min
Aug 13, 1:46 PM EDTAreal Flood AdvisoryRAHJohnston104 min
Aug 13, 2:10 PM EDTAreal Flood AdvisoryRAHEdgecombe, Nash, Wayne, Wilson110 min
Aug 13, 2:18 PM EDTAreal Flood AdvisoryRAHHalifax, Warren102 min
Aug 13, 6:50 PM EDTSpecial Weather StatementRAHForsyth55 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.