Alert archive / Florida / Rip Current Statements in 2012

Rip Current Statement 21, NWS Jacksonville, FL

October 17, 2012Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this rip current statement at Oct 17, 2012, 9:47 AM EDT for Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Oct 17, 2012, 9:47 AM EDT (13:47 UTC)
Expired
Oct 17, 2012, 7:00 PM EDT
In force
9 hr
Issued by
NWS Jacksonville, FL

Counties Flagler County, FL, Nassau County, FL, Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 17 km from the middle of the area, began a volume at 13:49 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

Jacksonville, FL (KJAX), launched 12:00Z, 1.8 hours before the alert went out and 16 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, Jacksonville, FL at 12:00Z on 2012-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Jacksonville, FL at 12:00Z on 2012-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1000 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
91 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.

197 
WHUS42 KJAX 171347
CFWJAX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
947 AM EDT WED OCT 17 2012

FLZ024-025-033-038-GAZ154-166-172300-
/O.NEW.KJAX.RP.S.0021.121017T1347Z-121017T2300Z/
NASSAU-DUVAL-ST JOHNS-FLAGLER-COASTAL GLYNN-COASTAL CAMDEN-
947 AM EDT WED OCT 17 2012

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

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A HIGH
RIP CURRENT RISK...WHICH IS IN EFFECT UNTIL EARLY THIS EVENING.

* TIMING...LONG PERIOD EASTERLY SWELLS FROM DISTANT HURRICANE
  RAFAEL COMBINED WITH ONSHORE WINDS WILL CREATE A HIGH RISK FOR
  RIP CURRENTS AT AREA BEACHES THROUGH EARLY THIS EVENING.

* IMPACTS...RIP CURRENTS WILL BE LIFE-THREATENING TO SWIMMERS. 
  MODERATE SIZE BREAKERS CAN KNOCK YOU DOWN AND MAKE YOU 
  SUSCEPTIBLE TO RIP CURRENTS. STAY OUT OF THE WATER UNTIL 
  CONDITIONS IMPROVE. 

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.

&&

$$

NELSON

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 16, 9:07 PM EDTSmall Craft Advisory for Hazardous SeasJAX36 hr
Oct 17, 2:10 PM EDTSpecial Marine WarningJAX50 min
Oct 17, 2:57 PM EDTSpecial Marine WarningJAX63 min
Oct 17, 3:33 PM EDTSpecial Weather StatementJAXSaint Johns27 min
Oct 17, 3:47 PM EDTSpecial Marine WarningJAX118 min
Oct 17, 4:01 PM EDTSpecial Marine WarningJAX84 min

Nearby

Rip Current Statements in Florida, 2012Rip Current Statements in Georgia, 2012Every rip current statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.