Alert archive / North Carolina / Rip Current Statements in 2013

Rip Current Statement 1, NWS Wilmington, NC

April 21, 2013New Hanover County, Pender County, North Carolina; Georgetown County, South Carolina

NWS Wilmington, NC issued this rip current statement at Apr 21, 2013, 4:01 PM EDT for New Hanover County, Pender County, North Carolina; Georgetown County, South Carolina. It took effect at Apr 22, 2013, 7:00 AM EDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 2013, 4:01 PM EDT (20:01 UTC)
In effect from
Apr 22, 2013, 7:00 AM EDT
Expired
Apr 22, 2013, 8:00 PM EDT
In force
13 hr
Issued by
NWS Wilmington, NC

Counties New Hanover County, NC, Pender County, NC, Georgetown County, SC

The radar

The Wilmington radar (KLTX), 9 km from the middle of the area, began a volume at 20:01 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

Newport, NC (KMHX), launched 12:00Z, 8.0 hours before the alert went out and 158 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, Newport, NC at 12:00Z on 2013-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Newport, NC at 12:00Z on 2013-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -75 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1227 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-75 m²/s²
0-3 km storm-relative helicity
198 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.

959 
WHUS42 KILM 212001
CFWILM

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON NC
401 PM EDT SUN APR 21 2013


NCZ106-108-SCZ056-221015-
/O.NEW.KILM.RP.S.0001.130422T1100Z-130423T0000Z/
COASTAL PENDER-COASTAL NEW HANOVER-COASTAL GEORGETOWN-
401 PM EDT SUN APR 21 2013

...HIGH RIP CURRENT RISK IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A HIGH RIP
CURRENT RISK...WHICH IS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY
EVENING.

* TIDES AND SWELL...EAST-NORTHEAST SWELLS OF 7 TO 8 FEET AT 7 TO 9
  SECONDS WILL CREATE BREAKING WAVES OF 5 TO 6 FEET AT THE NEW
  HANOVER...PENDER AND GEORGETOWN BEACHES ON MONDAY. AT THE
  BRUNSWICK AND HORRY BEACHES THE SURF WILL BE 4 TO 5 FEET.

* RIP CURRENT RISK...STRONG RIP CURRENTS ARE EXPECTED. THE
  STRONGEST RIP CURRENTS WILL OCCUR AROUND LOW TIDE...AND NEAR
  JETTIES AND PIERS.

* TIMING...THE STRONGEST RIPS WILL OCCUR WITHIN A 2 HOUR WINDOW
  EITHER SIDE OF LOW TIDE...WHICH WILL OCCUR MONDAY AROUND 1130
  AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A HIGH RISK OF RIP CURRENTS. 

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...JETTIES
AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS. 

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO NOT
ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
2 follow-up statements
733 
WHUS42 KILM 220922
CFWILM

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON NC
522 AM EDT MON APR 22 2013

NCZ106-108-SCZ056-230000-
/O.CON.KILM.RP.S.0001.130422T1100Z-130423T0000Z/
COASTAL PENDER-COASTAL NEW HANOVER-COASTAL GEORGETOWN-
522 AM EDT MON APR 22 2013

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING...

* TIDES AND SWELL...EAST-NORTHEAST SWELLS OF 7 FEET WITH PERIODS
  OF 7 TO 9 SECONDS WILL CREATE BREAKING WAVES OF 5 TO 6 FEET AT
  THE NEW HANOVER...PENDER AND GEORGETOWN BEACHES TODAY. AT THE
  BRUNSWICK AND HORRY BEACHES NORTH OF MYRTLE BEACH...THE SURF
  WILL BE 4 TO 5 FEET. IN ADDITION...NORTH TO NORTHEAST WINDS 20-25
  MPH WITH STRONGER GUSTS WILL PRODUCE A STRONG NORTH TO SOUTH
  LONGSHORE CURRENT.

* RIP CURRENT RISK...STRONG RIP CURRENTS ARE EXPECTED. THE 
  STRONGEST RIP CURRENTS WILL OCCUR AROUND LOW TIDE...AND NEAR 
  JETTIES AND PIERS.

* TIMING...THE STRONGEST RIPS WILL OCCUR WITHIN A 2 HOUR WINDOW
  EITHER SIDE OF LOW TIDE...WHICH WILL OCCUR AROUND 1130 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A HIGH RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...JETTIES
AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO NOT
ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$

47

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
479 
WHUS42 KILM 222359
CFWILM

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON NC
759 PM EDT MON APR 22 2013

NCZ106-108-SCZ056-230100-
/O.EXP.KILM.RP.S.0001.000000T0000Z-130423T0000Z/
COASTAL PENDER-COASTAL NEW HANOVER-COASTAL GEORGETOWN-
759 PM EDT MON APR 22 2013

...HIGH RIP CURRENT RISK WILL EXPIRE AT 8 PM EDT THIS EVENING...

CONDITIONS SUPPORTING A HIGH RISK OF RIP CURRENTS HAVE
SUBSIDED. THERE IS STILL A MODERATE RIP RISK FOR THE PENDER...NEW
HANOVER AND GEORGETOWN BEACHES ON TUESDAY.

$$

12

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 9:21 AM EDTGale WarningILM16 hr

Nearby

Rip Current Statements in North Carolina, 2013Rip Current Statements in South Carolina, 2013Every rip current statement in 2013

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.