Alert archive / North Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Raleigh, NC

June 15, 2016Randolph County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jun 15, 2016, 6:34 PM EDT for Randolph County, North Carolina. It was in force for 86 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 15, 2016, 6:34 PM EDT (22:34 UTC)
Expired: Jun 15, 2016, 8:00 PM EDT
In force: 86 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

County Randolph County, NC

The radar

The Raleigh/Durham radar (KRAX), 113 km from the middle of the area, began a volume at 22:35 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 15, 6:53 PM EDT	FLASH FLOOD	3 Sse Asheboro, NC	REPORT OF WAIST DEEP WATER ON THE ROAD.

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, 10.6 hours before the alert went out and 48 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: 153 J/kg
Mixed-layer CIN: -179 J/kg
Mixed-layer LCL: 1032 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

874 
WGUS52 KRAH 152234
FFWRAH
NCC151-160000-
/O.NEW.KRAH.FF.W.0006.160615T2234Z-160616T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
634 PM EDT WED JUN 15 2016

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN RANDOLPH COUNTY IN CENTRAL NORTH CAROLINA...

* UNTIL 800 PM EDT
  
* AT 630 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA, AND UP TO 2.5 INCHES OF RAIN
  ARE ESTIMATED TO HAVE FALLEN DURING THE PAST 1.5 HOURS AND ANOTHER
  INCH IS POSSILBE THROUGH 730 PM. ROADS IN SOUTH ASHEBORO HAVE BEEN
  REPORTED AS NEARLY FLOODED TO THE POINT OF BEING CLOSED. AS SUCH,
  MORE SERIOUS FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ASHEBORO...NORTH CAROLINA ZOO...SEAGROVE...RAMSEUR...
  FRANKLINVILLE...ULAH AND COLERIDGE.

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.

&&

LAT...LON 3578 7987 3577 7955 3551 7956 3551 7985

$$

13

1 follow-up statement

465 
WGUS72 KRAH 152313
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
713 PM EDT WED JUN 15 2016

NCC151-152323-
/O.CAN.KRAH.FF.W.0006.000000T0000Z-160616T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANDOLPH NC-
713 PM EDT WED JUN 15 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN RANDOLPH COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3578 7987 3577 7955 3551 7956 3551 7985

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 4:39 PM EDT	Special Weather Statement	RAH	Edgecombe, Nash	51 min
Jun 15, 4:41 PM EDT	Special Weather Statement	RAH	Edgecombe, Nash	49 min
Jun 15, 4:50 PM EDT	Special Weather Statement	RAH	Hoke	55 min
Jun 15, 4:56 PM EDT	Special Weather Statement	RAH	Harnett	64 min
Jun 15, 5:33 PM EDT	Special Weather Statement	RAH	Davidson, Montgomery, Randolph	57 min
Jun 15, 5:48 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	30 min
Jun 15, 6:17 PM EDT	Areal Flood Advisory	RAH	Randolph	118 min
Jun 15, 6:22 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Montgomery, Moore, Randolph	38 min
Jun 15, 6:32 PM EDT	Special Weather Statement	RAH	Cumberland	73 min
Jun 15, 6:58 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Lee, Randolph	47 min
Jun 15, 7:09 PM EDT	Special Weather Statement	RAH	Hoke, Moore, Richmond	81 min
Jun 15, 7:43 PM EDT	Special Weather Statement	RAH	Alamance, Chatham, Durham, Granville, Orange, Person and 1 more	77 min

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.