Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 9, NWS Raleigh, NC

May 24, 2012Edgecombe County, North Carolina

NWS Raleigh, NC issued this flash flood warning at May 24, 2012, 5:10 AM EDT for Edgecombe County, North Carolina. It was in force for 2 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 24, 2012, 5:10 AM EDT (09:10 UTC)
Expired: May 24, 2012, 7:26 AM EDT
In force: 2 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

County Edgecombe County, NC

The radar

The Raleigh/Durham radar (KRAX), 86 km from the middle of the area, began a volume at 09:13 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.

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 9.2 hours before the alert went out and 138 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: 911 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1019 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

067 
WGUS52 KRAH 240910
FFWRAH
NCC065-241200-
/O.NEW.KRAH.FF.W.0009.120524T0910Z-120524T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
510 AM EDT THU MAY 24 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 800 AM EDT

* AT 503 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER   
EDGECOMBE COUNTY. DOPPLER RADAR ESTIMATED THAT 3 TO 4 INCHES OF RAIN 
HAS FALLEN OVER PRINCEVILLE AND SPEED. WHILE THE HEAVY RAIN HAS 
ENDED IN THESE AREA FOR THE MOMENT...ADDITIONAL STORMS COULD MOVE
OR DEVELOP OVER THE AREA. 

* LOCATIONS THREATENED WITH FLOODING INCLUDE TARBORO...PRINCEVILLE 
AND SPEED. 

AN ADDITIONAL ONE INCH OF RAINFALL IS STILL POSSIBLE RESULTING IN 
ADDITIONAL FLOODING.

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 3580 7745 3580 7747 3577 7750 3568 7766
      3573 7772 3583 7775 3585 7779 3589 7782
      3608 7770 3606 7754 3604 7752 3603 7745
      3600 7742 3586 7734

$$

23

2 follow-up statements

643 
WGUS72 KRAH 241024
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
624 AM EDT THU MAY 24 2012

NCC065-241200-
/O.CON.KRAH.FF.W.0009.000000T0000Z-120524T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-
624 AM EDT THU MAY 24 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM EDT FOR
EDGECOMBE COUNTY...

AT 617 AM EDT...LOCAL LAW ENFORCEMENT REPORTED THUNDERSTORMS WITH 
VERY HEAVY RAIN OVER NORTHERN EDGECOMBE COUNTY...JUST NORTH OF 
LEGGETT. DOPPLER RADAR ESTIMATED THAT 3 TO 4 INCHES OF RAIN HAS 
FALLEN OVER EASTERN EDGECOMBE COUNTY.

LOCAL LAW ENFORCEMENT HAS REPORTED HIGH WATER ON AREA ROADS IN THE 
PRINCEVILLE AND KINGSBORO AREAS.

THE HEAVY RAIN IS BEGINNING TO LIFT NORTH OF TH AREA...BUT 
RESIDUAL HIGH WATER WILL WILL RESULT IN ADDITIONAL FLOODING OF 
URBAN OR LOW LYING AREAS. 


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 3580 7745 3580 7747 3577 7750 3568 7766
      3573 7772 3583 7775 3585 7779 3589 7782
      3608 7770 3606 7754 3604 7752 3603 7745
      3600 7742 3586 7734

$$

23

124 
WGUS72 KRAH 241126
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
726 AM EDT THU MAY 24 2012

NCC065-241134-
/O.CAN.KRAH.FF.W.0009.000000T0000Z-120524T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-
726 AM EDT THU MAY 24 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EDGECOMBE COUNTY...

THE RAIN HAS ENDED ACROSS THE WARNED AREA AND THERE HAVE BEEN NO 
ADDITIONAL REPORTS OF FLOODING IN THE AREA. THEREFORE THE WARNING 
WILL BE CANCELLED.

LAT...LON 3580 7745 3580 7747 3577 7750 3568 7766
      3573 7772 3583 7775 3585 7779 3589 7782
      3608 7770 3606 7754 3604 7752 3603 7745
      3600 7742 3586 7734

$$

KRR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 8:03 PM EDT	Special Weather Statement	RAH	Wayne	42 min
May 23, 8:40 PM EDT	Areal Flood Advisory	RAH	Edgecombe, Nash	99 min
May 23, 8:47 PM EDT	Special Weather Statement	RAH	Edgecombe	58 min
May 24, 3:08 AM EDT	Special Weather Statement	RAH	Edgecombe	67 min
May 24, 3:22 AM EDT	Areal Flood Advisory	RAH	Edgecombe	3 hr
May 24, 5:44 AM EDT	Special Weather Statement	RAH	Halifax	91 min
May 24, 4:29 PM EDT	Areal Flood Advisory	RAH	Vance, Warren	2 hr
May 24, 4:36 PM EDT	Special Weather Statement	RAH	Franklin	54 min
May 24, 5:32 PM EDT	Special Weather Statement	RAH	Warren	58 min
May 24, 6:32 PM EDT	Areal Flood Advisory	RAH	Franklin	3 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.