Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 39, NWS Raleigh, NC

August 29, 2012Cumberland County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Aug 29, 2012, 5:43 PM EDT for Cumberland County, North Carolina. It was in force for 3 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: Aug 29, 2012, 5:43 PM EDT (21:43 UTC)
Expired: Aug 29, 2012, 8:22 PM EDT
In force: 3 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

County Cumberland County, NC

The radar

The Raleigh/Durham radar (KRAX), 82 km from the middle of the area, began a volume at 21:43 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

Time	Report	Where	Remark
Aug 29, 6:00 PM EDT	FLASH FLOOD	1 Sse Bonnie Doone, NC	PAMALEE DRIVE AT THE INTERSECTION OF BRAGG BOULEVARD PARTIALLY BLOCKED BY FLOOD WATER. LOW CLEARANCE VEHICLES ARE UNABLE TO PASS.

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, 9.7 hours before the alert went out and 148 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 159 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 777 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 31 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.

452 
WGUS52 KRAH 292143
FFWRAH
NCC051-300045-
/O.NEW.KRAH.FF.W.0039.120829T2143Z-120830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
543 PM EDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 845 PM EDT

* AT 539 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER         
  CENTRAL CUMBERLAND COUNTY. DOPPLER RADAR ESTIMATED THAT TWO TO     
  THREE INCHES OF RAIN HAS FALLEN SINCE 445 PM JUST WEST OF DOWNTOWN 
  FAYETTEVILLE OVER BONNIE DOONE. ADDITIONAL RAINFALL AMOUNTS OF ONE 
  TO TWO INCHES ARE EXPECTED THROUGH 700 PM.

* LOCATIONS THREATENED WITH FLOODING INCLUDE...BONNIE DOONE...AND    
  FAYETTEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THE HEAVY RAIN WILL CAUSE FLASH FLOODING OF
CREEKS AND STREAMS...ROADS...LOW LYING AND POOR DRAINAGE AREAS. DO
NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. MANY
ROADS AND INTERSECTIONS IN THE AREA WILL QUICKLY FLOOD. WHEN
ENCOUNTERING FLOODED ROADS 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 3488 7887 3504 7909 3507 7909 3518 7888
      3504 7869

$$

VINCENT

4 follow-up statements

227 
WGUS72 KRAH 292212
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
612 PM EDT WED AUG 29 2012

NCC051-300045-
/O.CON.KRAH.FF.W.0039.000000T0000Z-120830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NC-
612 PM EDT WED AUG 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
SOUTHERN CUMBERLAND COUNTY...

AT 605 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE HEAVY RAIN OVER CENTRAL AND SOUTHERN CUMBERLAND COUNTY. 
DOPPLER RADAR ESTIMATED THAT UP TO THREE INCHES OF RAIN HAS FALLEN 
OVER BONNIE DOONE NEAR THE INTERSECTION OF THE HIGHWAY 401 BYPASS 
AND BRAGG BOULEVARD SINCE 445 PM. ALTHOUGH SHOWERS AND THUNDERSTORMS 
HAVE RECENTLY WEAKENED...LOCALLY HEAVY RAIN WILL REMAIN POSSIBLE 
THROUGH 700 PM.

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...ESPECIALLY ON 
BRAGG BOULEVARD NEAR THE INTERSECTION OF THE HIGHWAY 401 BYPASS.

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 3504 7909 3507 7909 3513 7897 3513 7893
      3512 7885 3503 7870 3488 7887

$$

VINCENT

937 
WGUS72 KRAH 292234
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
634 PM EDT WED AUG 29 2012

NCC051-300045-
/O.CON.KRAH.FF.W.0039.000000T0000Z-120830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NC-
634 PM EDT WED AUG 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR WEST
CENTRAL CUMBERLAND COUNTY...

AS MUCH AS THREE INCHES OF RAIN FELL ON THE WESTERN SIDE OF 
FAYETTEVILLE BETWEEN 445 PM AND 600 PM. FLOODING HAS BEEN REPORTED 
AT THE INTERSECTION OF PAMALEE DRIVE AND BRAGG BOULEVARD.

ALTHOUGH HEAVY RAINFALL HAS ENDED ACROSS THE WARNED AREA...FLOODING 
WILL CONTINUE...ESPECIALLY NEAR BONNIE DOONE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL RESULT IN FLOODING OF 
SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND 
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. DO 
NOT DRIVE THROUGH FLOODED ROADS...TURN AROUND...DON'T 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 3504 7909 3505 7907 3513 7897 3508 7883
      3496 7897

$$

VINCENT

026 
WGUS72 KRAH 292323
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
723 PM EDT WED AUG 29 2012

NCC051-300045-
/O.CON.KRAH.FF.W.0039.000000T0000Z-120830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NC-
723 PM EDT WED AUG 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR WEST
CENTRAL CUMBERLAND COUNTY...

COUNTY OFFICIALS REPORT THAT FLOODING CONTINUES AT THE INTERSECTION 
OF PAMALEE DRIVE AND BRAGG BOULEVARD WHERE FIVE OUT OF SIX LANES 
REMAIN CLOSED.  FLOOD WATERS WILL BE SLOW TO RECEDE IN THE BONNIE 
DOONE AREA WHERE AS MUCH AS THREE INCHES OF RAIN FELL EARLIER THIS 
AFTERNOON.

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 3504 7909 3505 7907 3513 7897 3508 7883
      3496 7897

$$

VINCENT

486 
WGUS72 KRAH 300022
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
822 PM EDT WED AUG 29 2012

NCC051-300030-
/O.CAN.KRAH.FF.W.0039.000000T0000Z-120830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NC-
822 PM EDT WED AUG 29 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WEST CENTRAL
CUMBERLAND COUNTY...

WATER HAS SLOWLY RECEDED SINCE RAINFALL ENDED SHORTLY AFTER 600 
PM...AND FLOODING IS NO LONGER OCCURRING. AS A RESULT...THE FLASH 
FLOOD WARNING HAS BEEN CANCELLED.

LAT...LON 3504 7909 3505 7907 3513 7897 3508 7883
      3496 7897

$$

VINCENT

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 8:00 PM EDT	Special Weather Statement	RAH	Granville, Vance, Warren	60 min
Aug 28, 8:41 PM EDT	Special Weather Statement	RAH	Alamance, Durham, Forsyth, Franklin, Granville, Guilford and 4 more	2 hr
Aug 28, 9:01 PM EDT	Areal Flood Advisory	RAH	Alamance, Forsyth, Guilford	3 hr
Aug 28, 9:10 PM EDT	Flash Flood Warning	RAH	Forsyth, Guilford	3 hr
Aug 28, 9:48 PM EDT	Areal Flood Advisory	RAH	Durham, Granville	102 min
Aug 29, 2:28 PM EDT	Areal Flood Advisory	RAH	Anson	2 hr
Aug 29, 2:51 PM EDT	Areal Flood Advisory	RAH	Richmond, Scotland	2 hr
Aug 29, 5:21 PM EDT	Areal Flood Advisory	RAH	Cumberland	99 min

Nearby

Flash Flood Warnings in North Carolina, 2012 Every 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.