Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 13, NWS Raleigh, NC

June 24, 2012Wayne County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jun 24, 2012, 6:13 PM EDT for Wayne County, North Carolina. It was in force for 85 min. 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: Jun 24, 2012, 6:13 PM EDT (22:13 UTC)
Expired: Jun 24, 2012, 7:38 PM EDT
In force: 85 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

County Wayne County, NC

The radar

The Raleigh/Durham radar (KRAX), 75 km from the middle of the area, began a volume at 22:15 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
Jun 24, 7:02 PM EDT	FLOOD	4 W Seven Springs, NC	DOT RESPONDING TO HIGH WATER ON INDIAN SPRINGS ROAD 2600 AND 2900 BLOCK

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 12:00Z, 10.2 hours before the alert went out and 103 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: 1131 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 626 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 25 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.

766 
WGUS52 KRAH 242213
FFWRAH
NCC191-250015-
/O.NEW.KRAH.FF.W.0013.120624T2213Z-120625T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
613 PM EDT SUN JUN 24 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 815 PM EDT

* AT 606 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN PRODUCING FLOODING OVER SOUTHEASTERN WAYNE 
COUNTY.   DOPPLER RADAR ESTIMATED THAT FOUR INCHES OF RAIN HAS 
FALLEN OVER SOUTHEAST WAYNE COUNTY.

* LOCATIONS THREATENED WITH FLOODING INCLUDE SEVEN SPRINGS.

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 3518 7783 3515 7789 3515 7790 3517 7792
      3516 7795 3521 7805 3528 7788 3527 7782

$$

14

1 follow-up statement

661 
WGUS72 KRAH 242338
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
738 PM EDT SUN JUN 24 2012

NCC191-242346-
/O.CAN.KRAH.FF.W.0013.000000T0000Z-120625T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE NC-
738 PM EDT SUN JUN 24 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN WAYNE
COUNTY...

AT 735 PM EDT...THUNDERSTORMS WHICH PRODUCED HEAVY RAINS IN 
SOUTHEAST WAYNE COUNTY HAVE WEAKENED AND MOVED SOUTHEAST. ADDITIONAL 
HEAVY RAINS ARE NOT EXPECTED AT THIS TIME. THE FLASH FLOOD WARNING 
HAS BEEN CANCELLED. 

LAT...LON 3518 7783 3515 7789 3515 7790 3517 7792
      3516 7795 3521 7805 3528 7788 3527 7782

$$

14

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 8:36 PM EDT	Special Weather Statement	RAH	Bladen	54 min
Jun 24, 3:44 PM EDT	Special Weather Statement	RAH	Anson	61 min
Jun 24, 4:31 PM EDT	Special Weather Statement	RAH	Wayne	59 min
Jun 24, 4:44 PM EDT	Areal Flood Advisory	RAH	Anson	2 hr
Jun 24, 5:23 PM EDT	Flash Flood Warning	RAH	Anson	92 min
Jun 24, 5:45 PM EDT	Areal Flood Advisory	RAH	Richmond	3 hr
Jun 24, 7:09 PM EDT	Special Weather Statement	RAH	Davidson	66 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.