Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 4, NWS Raleigh, NC

May 9, 2012Edgecombe County, Nash County, Wilson County, North Carolina

NWS Raleigh, NC issued this flash flood warning at May 9, 2012, 4:20 PM EDT for Edgecombe County, Nash County, Wilson 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: May 9, 2012, 4:20 PM EDT (20:20 UTC)
Expired: May 9, 2012, 8:15 PM EDT
In force: 4 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

Counties Edgecombe County, NC, Nash County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 74 km from the middle of the area, began a volume at 20:23 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

Newport, NC (KMHX), launched 12:00Z, 8.3 hours before the alert went out and 155 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: 598 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 519 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 73 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.

174 
WGUS52 KRAH 092020
FFWRAH
NCC065-127-195-100015-
/O.NEW.KRAH.FF.W.0004.120509T2020Z-120510T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
420 PM EDT WED MAY 9 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EDGECOMBE COUNTY IN CENTRAL NORTH CAROLINA
  WILSON COUNTY IN CENTRAL NORTH CAROLINA
  NASH COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 815 PM EDT

* AT 414 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS THAT WERE CONTINUOUSLY REDEVELOPING AND PRODUCING
  FLOODING OVER NASH...WILSON AND EDGECOMBE COUNTIES. DOPPLER        
  RADAR ESTIMATED THAT 2-3 INCHES OF RAIN HAS FALLEN OVER            
  PORTIONS OF EDGECOMBE AND WILSON COUNTIES.

* LOCATIONS THREATENED WITH FLOODING INCLUDE NASHVILLE...DORTCHES...
  BAILEY...TARBORO...ROCKY MOUNT...WILSON...SARATOGA AND ELM CITY.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 3582 7735 3580 7747 3558 7782 3560 7812
      3571 7817 3576 7824 3582 7826 3620 7801
      3618 7798 3619 7797 3619 7792 3615 7789
      3616 7774 3614 7772 3615 7768 3611 7763
      3610 7754 3604 7752 3600 7740 3591 7734

$$

ELLIS

3 follow-up statements

184 
WGUS72 KRAH 092116
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
516 PM EDT WED MAY 9 2012

NCC065-127-195-100015-
/O.CON.KRAH.FF.W.0004.000000T0000Z-120510T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-WILSON NC-NASH NC-
516 PM EDT WED MAY 9 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR
NASH...WILSON AND EDGECOMBE COUNTIES...

AT 509 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS THAT WERE REDEVELOPING OVER THE SAME AREA
PRODUCING FLOODING IN NASH...WILSON AND EDGECOMBE COUNTIES. DOPPLER 
RADAR ESTIMATED THAT 3-4 INCHES OF RAIN HAS FALLEN OVER EASTERN 
EDGECOMBE AND EASTERN WILSON COUNTIES.

LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO 
DORTCHES...PINETOPS...WILLBANKS AND MACCLESFIELD.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 3582 7735 3580 7747 3558 7782 3560 7812
      3571 7817 3576 7824 3582 7826 3620 7801
      3618 7798 3619 7797 3619 7792 3615 7789
      3616 7774 3614 7772 3615 7768 3611 7763
      3610 7754 3604 7752 3600 7740 3591 7734

$$

ELLIS

646 
WGUS72 KRAH 092233
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
633 PM EDT WED MAY 9 2012

NCC065-127-195-100015-
/O.CON.KRAH.FF.W.0004.000000T0000Z-120510T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-WILSON NC-NASH NC-
633 PM EDT WED MAY 9 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR
NASH...WILSON AND EDGECOMBE COUNTIES...

AT 628 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS WITH VERY HEAVY RAIN OVER NASH...WILSON AND 
EDGECOMBE COUNTIES. DOPPLER RADAR ESTIMATED THAT 3-4 INCHES OF RAIN 
HAS FALLEN OVER EASTERN EDGECOMBE AND WILSON COUNTIES.

LAW ENFORCEMENT REPORTED HIGH WATER IN THE PINETOPS AREA.

LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO 
DORTCHES...PINETOPS...AND MACCLESFIELD.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 3582 7735 3580 7747 3558 7782 3560 7812
      3571 7817 3576 7824 3582 7826 3620 7801
      3618 7798 3619 7797 3619 7792 3615 7789
      3616 7774 3614 7772 3615 7768 3611 7763
      3610 7754 3604 7752 3600 7740 3591 7734

$$

ELLIS

431 
WGUS72 KRAH 100007
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
807 PM EDT WED MAY 9 2012

NCC065-127-195-100016-
/O.EXP.KRAH.FF.W.0004.000000T0000Z-120510T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-WILSON NC-NASH NC-
807 PM EDT WED MAY 9 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 815 PM EDT FOR NASH...
WILSON AND EDGECOMBE COUNTIES...

THE HEAVIEST RAINS HAVE SUBSIDED AND THE FLASH FLOODING THREAT HAS 
ENDED.

LAT...LON 3582 7735 3580 7747 3558 7782 3560 7812
      3571 7817 3576 7824 3582 7826 3620 7801
      3618 7798 3619 7797 3619 7792 3615 7789
      3616 7774 3614 7772 3615 7768 3611 7763
      3610 7754 3604 7752 3600 7740 3591 7734

$$

ELLIS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 2:16 PM EDT	Areal Flood Advisory	RAH	Davidson, Forsyth, Guilford, Randolph	3 hr
May 9, 3:31 PM EDT	Special Weather Statement	RAH	Chatham, Durham, Orange, Person	59 min
May 9, 3:47 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Orange, Person	58 min
May 9, 4:24 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Granville, Wake	66 min
May 9, 4:51 PM EDT	Special Weather Statement	RAH	Sampson	69 min
May 9, 4:57 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	48 min
May 9, 5:04 PM EDT	Areal Flood Advisory	RAH	Wake	2 hr
May 9, 5:26 PM EDT	Special Weather Statement	RAH	Franklin, Warren	64 min
May 9, 5:32 PM EDT	Special Weather Statement	RAH	Wayne	58 min
May 9, 5:41 PM EDT	Areal Flood Advisory	RAH	Halifax	2 hr

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