Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 6, NWS Raleigh, NC

May 16, 2012Edgecombe County, Nash County, North Carolina

NWS Raleigh, NC issued this flash flood warning at May 16, 2012, 9:11 PM EDT for Edgecombe County, Nash County, North Carolina. It was in force for 2 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: May 16, 2012, 9:11 PM EDT (01:11 UTC)
Expired: May 16, 2012, 11:33 PM EDT
In force: 2 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

Counties Edgecombe County, NC, Nash County, NC

The radar

The Raleigh/Durham radar (KRAX), 82 km from the middle of the area, began a volume at 01:14 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
May 16, 10:15 PM EDT	FLASH FLOOD	4 Nw Battleboro, NC	SIX INCHES OF WATER ON WATSON SEED FARM RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 1.2 hours before the alert went out and 164 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: 1639 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 689 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

447 
WGUS52 KRAH 170111
FFWRAH
NCC065-127-170415-
/O.NEW.KRAH.FF.W.0006.120517T0111Z-120517T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
911 PM EDT WED MAY 16 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 1215 AM EDT

* AT 903 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER  
NORTHEASTERN NASH AND NORTHWESTERN EDGECOMBE COUNTIES. DOPPLER   
RADAR ESTIMATED THAT THREE TO FIVE INCHES OF RAIN HAS FALLEN BETWEEN 
WHITAKERS....BATTLEBORO...AND DORTCHES. ANOTHER ONE TO TWO INCHES OF 
RAIN IS POSSIBLE.  THESE STORMS ARE MOVING VERY SLOWLY TO THE SOUTH 
TOWARD ROCKY MOUNT AND WILL CAUSE FLOODING ON CREEKS...STREAMS...AND 
ROADWAYS.

* LOCATIONS THREATENED WITH FLOODING INCLUDE 
WHITAKERS...BATTLEBORO...DORTCHES AND ROCKY MOUNT.

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 3584 7766 3589 7801 3616 7790 3615 7789
      3614 7778 3616 7774 3614 7772 3615 7772
      3615 7768 3614 7767 3614 7764 3611 7763
      3609 7757

$$

22

2 follow-up statements

473 
WGUS72 KRAH 170137
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
937 PM EDT WED MAY 16 2012

NCC065-127-170415-
/O.CON.KRAH.FF.W.0006.000000T0000Z-120517T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-NASH NC-
937 PM EDT WED MAY 16 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT FOR
NORTHEASTERN NASH AND NORTHWESTERN EDGECOMBE COUNTIES...

AT 926 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SLOW MOVING THUNDERSTORMS PRODUCING FLOODING OVER
NORTHEASTERN NASH AND NORTHWESTERN EDGECOMBE COUNTIES. DOPPLER RADAR 
ESTIMATED THAT OVER FOUR INCHES OF RAIN HAS FALLEN OVER BETWEEN 
DORTCHES...BATTLEBORO...AND WHITAKERS SINCE 700 PM.  THESE 
THUNDERSTORMS ARE MOVING SLOWLY TO THE SOUTH TOWARD ROCKY 
MOUNT...WHERE ADDITIONAL FLOODING WILL BE POSSIBLE.

LAW ENFORCEMENT HAVE REPORT HIGH WATER ON WATSON SEED FARM ROAD IN 
WHITAKERS.  MOTORISTS ARE URGED TO AVOID THIS AREA.

LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO 
WHITAKERS...BATTLEBORO...DORTCHES...AND ROCKY MOUNT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3584 7766 3589 7801 3616 7790 3615 7789
      3614 7778 3616 7774 3614 7772 3615 7772
      3615 7768 3614 7767 3614 7764 3611 7763
      3609 7757

$$

22

427 
WGUS72 KRAH 170333
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1133 PM EDT WED MAY 16 2012

NCC065-127-170338-
/O.CAN.KRAH.FF.W.0006.000000T0000Z-120517T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGECOMBE NC-NASH NC-
1133 PM EDT WED MAY 16 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN NASH
AND NORTHWESTERN EDGECOMBE COUNTIES...

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


LAT...LON 3584 7766 3589 7801 3616 7790 3615 7789
      3614 7778 3616 7774 3614 7772 3615 7772
      3615 7768 3614 7767 3614 7764 3611 7763
      3609 7757

$$

23

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 8:04 PM EDT	Areal Flood Advisory	RAH	Edgecombe, Halifax, Nash	3 hr
May 17, 6:48 AM EDT	Dense Fog Advisory	RAH	Edgecombe, Halifax, Johnston, Nash, Sampson, Wayne and 1 more	2 hr
May 17, 11:58 AM EDT	Special Weather Statement	RAH	Anson, Cumberland, Hoke, Richmond, Sampson, Scotland	92 min
May 17, 12:13 PM EDT	Special Weather Statement	RAH	Anson	32 min
May 17, 1:20 PM EDT	Special Weather Statement	RAH	Hoke, Scotland	70 min
May 17, 1:54 PM EDT	Special Weather Statement	RAH	Richmond	51 min
May 17, 1:58 PM EDT	Special Weather Statement	RAH	Nash	62 min
May 17, 2:00 PM EDT	Areal Flood Advisory	RAH	Hoke, Moore, Richmond, Scotland	57 min
May 17, 2:02 PM EDT	Special Weather Statement	RAH	Wake	58 min
May 17, 2:48 PM EDT	Special Weather Statement	RAH	Anson, Richmond	57 min
May 17, 2:56 PM EDT	Special Weather Statement	RAH	Halifax, Nash	64 min
May 17, 4:32 PM EDT	Special Weather Statement	RAH	Wake	58 min
May 17, 4:54 PM EDT	Special Weather Statement	RAH	Cumberland, Harnett	66 min
May 17, 5:12 PM EDT	Special Weather Statement	RAH	Montgomery	63 min
May 17, 6:33 PM EDT	Special Weather Statement	RAH	Cumberland	57 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.