Alert archive / North Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 49, NWS Raleigh, NC

September 29, 2016Cumberland County, Sampson County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Sep 29, 2016, 7:18 PM EDT for Cumberland County, Sampson County, North Carolina. It was in force for 24 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
Sep 29, 2016, 7:18 PM EDT (23:18 UTC)
Expired
Sep 30, 2016, 7:15 PM EDT
In force
24 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Flood severity
Unknown

Counties Cumberland County, NC, Sampson County, NC

The radar

The Raleigh/Durham radar (KRAX), 55 km from the middle of the area, began a volume at 23:20 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.3 hours before the alert went out and 151 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2016-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 174 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2016-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
174 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

193 
WGUS52 KRAH 292318
FFWRAH
NCC051-163-302315-
/O.NEW.KRAH.FF.W.0049.160929T2318Z-160930T2315Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
718 PM EDT THU SEP 29 2016

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  A DAM FAILURE IN...
  NORTHEASTERN CUMBERLAND COUNTY IN CENTRAL NORTH CAROLINA...
  NORTHWESTERN SAMPSON COUNTY IN CENTRAL NORTH CAROLINA...

* UNTIL 715 PM EDT FRIDAY

* AT 715 PM EDT...THE DAM ON RHODES LAKE NEAR GODWIN IS BEING
  OVERTOPPED AND MAY BE COMPROMISED. A FAILURE OF THIS DAM IS
  POSSIBLE AND WOULD RESULT IN FLASH FLOODING DOWNSTREAM ALONG THE
  BLACK RIVER. 

THE DAM IS LOCATED ALONG U.S. ROUTE 301 NEAR BAGGETT ROAD AND IF THE
DAM FAILED WATER WOULD SURGE SOUTHEAST ACROSS U.S. ROUTE 301 AND
POSSIBLY ACROSS INTERSTATE 95 AND THEN DOWNSTREAM ON THE BLACK
RIVER. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES.

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3524 7861 3511 7861 3511 7867 3524 7867

$$
2 follow-up statements
890 
WGUS72 KRAH 301542
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1142 AM EDT FRI SEP 30 2016

NCC051-163-302315-
/O.CON.KRAH.FF.W.0049.000000T0000Z-160930T2315Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NC-SAMPSON NC-
1142 AM EDT FRI SEP 30 2016

...A FLASH FLOOD WARNING FOR A DAM FAILURE REMAINS IN EFFECT UNTIL
715 PM EDT FRIDAY FOR NORTHEASTERN CUMBERLAND AND NORTHWESTERN
SAMPSON COUNTIES...

DAM SAFETY ENGINEERS REPORT THAT THE WATER LEVEL ON RHODES LAKE HAS
FALLEN ABOUT ONE HALF A FOOT OVERNIGHT AND THE THREAT OF DAM FAILURE
HAS DIMINISHED. THE WARNING WILL CONTINUE THROUGH THE AFTERNOON...
HOWEVER...DUE TO THE POTENTIAL FOR ADDITIONAL RAIN. 

THE DAM IS LOCATED ALONG U.S. ROUTE 301 NEAR BAGGETT ROAD AND IF THE
DAM FAILED WATER WOULD SURGE SOUTHEAST ACROSS U.S. ROUTE 301 AND
POSSIBLY ACROSS INTERSTATE 95 AND THEN DOWNSTREAM ON THE BLACK
RIVER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3524 7861 3511 7861 3511 7867 3524 7867

$$

13
563 
WGUS72 KRAH 302320
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
720 PM EDT FRI SEP 30 2016

NCC051-163-302329-
/O.EXP.KRAH.FF.W.0049.000000T0000Z-160930T2315Z/
/00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NC-SAMPSON NC-
720 PM EDT FRI SEP 30 2016

...THE FLASH FLOOD WARNING FOR A DAM FAILURE EXPIRED AT 715 PM EDT
FOR NORTHEASTERN CUMBERLAND AND NORTHWESTERN SAMPSON COUNTIES...

THE THREAT OF DAM FAILURE HAS DIMINISHED AT RHODES LAKE...AND IS NO
LONGER EXPECTED TO POSE A SIGNIFICANT THREAT. PLEASE CONTINUE TO
HEED ALL ROAD CLOSURES IN THE AREA THOUGH.

LAT...LON 3524 7861 3511 7861 3511 7867 3524 7867

$$

77

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 8:02 PM EDTSpecial Weather StatementRAHCumberland58 min
Sep 28, 8:10 PM EDTSpecial Weather StatementRAHMontgomery, Stanly65 min
Sep 28, 8:15 PM EDTFlash Flood WarningRAHAlamance, Orange3 hr
Sep 28, 8:16 PM EDTSpecial Weather StatementRAHAlamance, Randolph59 min
Sep 28, 8:28 PM EDTFlash Flood WarningRAHGuilford3 hr
Sep 28, 9:11 PM EDTAreal Flood AdvisoryRAHMontgomery, Stanly3 hr
Sep 28, 9:30 PM EDTSpecial Weather StatementRAHCumberland60 min
Sep 28, 10:24 PM EDTFlash Flood WarningRAHChatham, Montgomery, Moore, Randolph3 hr
Sep 28, 11:27 PM EDTSevere Thunderstorm WarningRAHChatham, Harnett, Lee, Moore48 min
Sep 28, 11:29 PM EDTSpecial Weather StatementRAHDurham, Granville, Wake46 min
Sep 29, 12:56 AM EDTAreal Flood AdvisoryRAHAnson, Harnett, Hoke, Lee, Moore, Richmond and 1 more3 hr
Sep 29, 1:01 AM EDTRiver Flood WarningRAHCumberland4 days
Sep 29, 1:47 AM EDTFlash Flood WarningRAHAnson, Harnett, Hoke, Lee, Moore, Richmond and 1 more3 hr
Sep 29, 4:10 AM EDTAreal Flood AdvisoryRAHCumberland, Hoke, Sampson, Scotland3 hr
Sep 29, 4:45 AM EDTFlash Flood WarningRAHHarnett, Hoke, Moore, Richmond, Scotland4 hr
Sep 29, 5:00 AM EDTFlash Flood Warning EmergencyRAHCumberland, Harnett, Hoke5 hr
Sep 29, 7:33 AM EDTAreal Flood AdvisoryRAHSampson3 hr
Sep 29, 8:26 AM EDTRiver Flood WarningRAHChatham21 hr
Sep 29, 8:32 AM EDTAreal Flood AdvisoryRAHEdgecombe, Halifax, Nash, Wayne, Wilson3 hr
Sep 29, 8:38 AM EDTAreal Flood WarningRAHHarnett, Hoke, Moore, Richmond, Scotland6 hr
Sep 29, 9:20 AM EDTFlash Flood WarningRAHWayne3 hr
Sep 29, 10:01 AM EDTFlash Flood WatchRAHCumberland, Edgecombe, Harnett, Hoke, Johnston, Lee and 6 more12 hr
Sep 29, 10:17 AM EDTAreal Flood WarningRAHCumberland, Harnett, Hoke, Sampson6 hr
Sep 29, 10:40 AM EDTFlash Flood WarningRAHCumberland, Harnett30 hr
Sep 29, 11:59 AM EDTFlash Flood WarningRAHCumberland, Hoke30 hr
Sep 29, 12:14 PM EDTAreal Flood AdvisoryRAHWayne3 hr
Sep 29, 1:21 PM EDTFlash Flood WarningRAHCumberland, Sampson6 hr
Sep 29, 4:14 PM EDTAreal Flood WarningRAHCumberland, Harnett, Hoke, Sampson6 hr
Sep 29, 6:48 PM EDTSpecial Weather StatementRAHAnson57 min

Nearby

Flash Flood Warnings in North Carolina, 2016Every flash flood warning in 2016

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.