Alert archive / North Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 52, NWS Raleigh, NC

October 8, 20164 counties in North Carolina

NWS Raleigh, NC issued this flash flood warning at Oct 8, 2016, 10:22 AM EDT for 4 counties in North Carolina. It was in force for 6 hr. 16 reports 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: Oct 8, 2016, 10:22 AM EDT (14:22 UTC)
Expired: Oct 8, 2016, 4:15 PM EDT
In force: 6 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

Counties Durham County, NC, Johnston County, NC, Wake County, NC, Wayne County, NC

The radar

The Raleigh/Durham radar (KRAX), 5 km from the middle of the area, began a volume at 14:23 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.

What was reported inside it

Time	Report	Where	Remark
Oct 8, 1:05 PM EDT	FLASH FLOOD	2 Ese Raleigh, NC	SEVERAL FEET OF WATER ON ATLANTIC AVENUE AND HODGES STREET WITH AT LEAST ONE CAR POSSIBLY SUBMERGED. .
Oct 8, 1:14 PM EDT	FLASH FLOOD	1 E Cary, NC	STEAM RUNNING THROUGH HEATER PARK IN CARY HAS OVERFLOWED ITS BANKS.
Oct 8, 2:00 PM EDT	FLASH FLOOD	2 W Clayton, NC	AMELIA CHURCH ROAD BETWEEN US-70 AND GUY ROAD IS CLOSED DUE TO FLOODING.
Oct 8, 2:11 PM EDT	FLASH FLOOD	1 Nne Fuquay-Varina, NC	STEWART STREET NEAR EAST MAPLE STREET CLOSED DUE TO FLOODING.
Oct 8, 2:15 PM EDT	HEAVY RAIN 7.16	3 Wnw Clayton, NC	RAINFALL SINCE MIDNIGHT.
Oct 8, 2:30 PM EDT	HEAVY RAIN 7.02	3 Nnw Lake Wheeler, NC	RAINFALL SINCE MIDNIGHT.
Oct 8, 2:45 PM EDT	FLASH FLOOD	1 S Fuquay-Varina, NC	ANGLER ROAD AT CREEK VALLEY DRIVE IS IMPASSABLE DUE TO FLOODING.
Oct 8, 2:49 PM EDT	FLASH FLOOD	2 Ssw Bethesda, NC	SHERIFF REPORTED HIGHWAY 147 FLOODED AT T.W. ALEXANDER DRIVE.
Oct 8, 3:00 PM EDT	FLASH FLOOD	Smithfield, NC	NUMEROUS ROADS CLOSED DUE TO FLOODING.
Oct 8, 3:00 PM EDT	FLASH FLOOD	Smithfield, NC	NUMEROUS ROADS CLOSED IN JOHNSTON COUNTY DUE TO FLOODING.
Oct 8, 3:10 PM EDT	FLASH FLOOD	1 Sw Coats Crossroads, NC	INTERSTATE 40 CLOSED BETWEEN EXIT 319 AND EXIT 325 DUE TO FLOODING.
Oct 8, 3:15 PM EDT	FLASH FLOOD	1 Sw Fuquay-Varina, NC	HIGHWAY 401 ENTERING FUQUAY-VARINA CLOSED DUE TO HIGH WATER.
Oct 8, 3:30 PM EDT	FLASH FLOOD	1 Nw Goldsboro, NC	NUMEROUS ROADS CLOSED IN WAYNE COUNTY DUE TO FLOODING.
Oct 8, 3:42 PM EDT	HEAVY RAIN 8.28	3 Nnw Lake Wheeler, NC	RAINFALL SINCE MIDNIGHT.
Oct 8, 4:20 PM EDT	FLASH FLOOD	4 S Lake Wheeler, NC	WATER RESCUE ON LAKE WHEELER RD BETWEEN OPTIMIST FARM & HILLTOP NEEDMORE.
Oct 8, 4:20 PM EDT	FLASH FLOOD	Smithfield, NC	MULTIPLE WATER RESCUES IN JOHNSTON COUNTY. PEOPLE TRAPPED IN HOMES AND ON TOP OF VEHICLES.

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

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 2.4 hours before the alert went out and 132 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: 13 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 502 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

541 
WGUS52 KRAH 081422
FFWRAH
NCC063-101-183-191-082015-
/O.NEW.KRAH.FF.W.0052.161008T1422Z-161008T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
1022 AM EDT SAT OCT 8 2016

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 415 PM EDT
  
* AT 1017 AM EDT...HEAVY RAIN FROM HURRICANE MATTHEW CONTINUES TO
  MOVE INTO CENTRAL NORTH CAROLINA LATE THIS MORNING. TWO TO THREE
  INCHES HAVE FALLEN IN SOME AREAS AND SEVERAL ADDITIONAL INCHES ARE
  POSSIBLE THROUGH EARLY AFTERNOON. FLASH FLOODING IS LIKELY...
  ESPECIALLY IN URBAN AREAS AND ON SMALLER CREEKS AND STREAMS.
  CRABTREE CREEK IN RALEIGH IS RISING STEADILY AND MAY FLOOD AROUND
  MID DAY. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  RALEIGH...DURHAM...CARY...CHAPEL HILL...GOLDSBORO...SMITHFIELD...
  WAKE FOREST...GARNER...FUQUAY-VARINA AND CLAYTON.


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...DON'T DROWN.

IF YOU ARE IN A LOW LYING AREA...ALONG A CREEK OR STREAM...OR IN AN
AREA EXPERIENCING FLOODING...TAKE ACTION NOW TO PROTECT YOUR LIFE.
MOVE TO HIGHER GROUND IMMEDIATELY.

&&

LAT...LON 3623 7880 3609 7881 3607 7878 3608 7869
      3593 7835 3560 7812 3558 7782 3518 7784
      3515 7790 3519 7802 3519 7816 3529 7830
      3526 7849 3550 7866 3561 7899 3585 7891
      3587 7891 3586 7902 3624 7895

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 7, 10:09 PM EDT	River Flood Warning	RAH	Harnett	4 days
Oct 7, 10:09 PM EDT	River Flood Warning	RAH	Cumberland	6 days
Oct 7, 10:12 PM EDT	River Flood Warning	RAH	Johnston	3 days
Oct 7, 10:12 PM EDT	River Flood Warning	RAH	Johnston	5 days
Oct 7, 10:12 PM EDT	River Flood Warning	RAH	Wayne	11 days
Oct 7, 10:18 PM EDT	River Flood Warning	RAH	Edgecombe	7 days
Oct 7, 10:18 PM EDT	River Flood Warning	RAH	Edgecombe	12 days
Oct 8, 8:01 AM EDT	Flash Flood Warning	RAH	Anson, Hoke, Richmond, Scotland	6 hr
Oct 8, 8:37 AM EDT	Flash Flood Warning	RAH	Cumberland, Harnett, Hoke, Lee, Montgomery, Moore and 2 more	6 hr
Oct 8, 8:41 AM EDT	High Wind Warning	RAH	Cumberland, Hoke, Sampson, Scotland, Wayne	18 hr
Oct 8, 9:13 AM EDT	River Flood Warning	RAH	Anson, Stanly	26 hr
Oct 8, 11:32 AM EDT	Flash Flood Warning Emergency	RAH	Cumberland, Hoke, Sampson	6 hr
Oct 8, 12:09 PM EDT	River Flood Warning	RAH	Chatham	48 hr
Oct 8, 1:09 PM EDT	Flash Flood Warning Emergency	RAH	Durham, Johnston, Wake, Wayne	6 hr
Oct 8, 1:21 PM EDT	Areal Flood Advisory	RAH	Alamance, Chatham, Davidson, Forsyth, Guilford, Orange and 2 more	8 hr
Oct 8, 1:31 PM EDT	Flash Flood Warning	RAH	Anson, Chatham, Harnett, Lee, Montgomery, Moore and 3 more	6 hr
Oct 8, 2:04 PM EDT	Flash Flood Warning	RAH	Edgecombe, Franklin, Halifax, Nash, Warren, Wilson	8 hr
Oct 8, 2:28 PM EDT	River Flood Warning	RAH	Chatham, Lee	67 hr
Oct 8, 2:32 PM EDT	Flash Flood Warning	RAH	Alamance, Granville, Orange, Person, Vance	8 hr
Oct 8, 2:37 PM EDT	River Flood Warning	RAH	Franklin	69 hr
Oct 8, 3:47 PM EDT	River Flood Warning	RAH	Alamance	37 hr
Oct 8, 3:50 PM EDT	Flash Flood Warning	RAH	Davidson, Forsyth, Guilford, Randolph	8 hr
Oct 8, 3:54 PM EDT	River Flood Warning	RAH	Edgecombe, Halifax, Nash	5 days
Oct 8, 5:29 PM EDT	Flash Flood Warning Emergency	RAH	Cumberland, Hoke, Sampson	8 hr
Oct 8, 6:55 PM EDT	Flash Flood Warning Emergency	RAH	Durham, Edgecombe, Johnston, Nash, Wake, Wayne and 1 more	7 hr
Oct 8, 7:49 PM EDT	Flash Flood Warning	RAH	Chatham, Harnett, Lee, Montgomery, Moore, Richmond and 1 more	6 hr

Nearby

Flash Flood Warnings in North Carolina, 2016 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.