Alert archive / Georgia / Rip Current Statements in 2010

Rip Current Statement 7, NWS Jacksonville, FL

September 29, 2010Camden County, Glynn County, Georgia; Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Sep 29, 2010, 4:27 AM EDT for Camden County, Glynn County, Georgia; Flagler County, Nassau County, Florida. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Sep 29, 2010, 4:27 AM EDT (08:27 UTC)
Expired
Sep 30, 2010, 6:00 AM EDT
In force
26 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 08:28 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 00:00Z, 8.5 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 00:00Z on 2010-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 181 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 00:00Z on 2010-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
181 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
927 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

533 
WHUS42 KJAX 290827
CFWJAX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
427 AM EDT WED SEP 29 2010

FLZ024-025-033-038-GAZ154-166-301000-
/O.NEW.KJAX.RP.S.0007.100929T0827Z-100930T1000Z/
NASSAU-DUVAL-ST JOHNS-FLAGLER-COASTAL GLYNN-COASTAL CAMDEN-
427 AM EDT WED SEP 29 2010

...HIGH RISK OF RIP CURRENTS THROUGH LATE TONIGHT...

WINDS ARE FORECAST TO BECOME NORTHEAST AND INCREASE TO 20 TO 25
KNOTS THIS AFTERNOON WITH SEAS OF 4 TO 6 FEET NEAR SHORE. THESE
STRONG WINDS AND SEAS WILL PRODUCE A HIGH RISK OF RIP CURRENTS
INTO TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PP
1 follow-up statement
239 
WHUS42 KJAX 301011
CFWJAX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
611 AM EDT THU SEP 30 2010

FLZ024-025-033-038-GAZ154-166-301115-
/O.EXP.KJAX.RP.S.0007.000000T0000Z-100930T1000Z/
NASSAU-DUVAL-ST JOHNS-FLAGLER-COASTAL GLYNN-COASTAL CAMDEN-
611 AM EDT THU SEP 30 2010

...HIGH RIP CURRENT RISK HAS EXPIRED...

THERE IS A MODERATE RISK OF RIP CURRENTS TODAY.

$$

PP

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 11:33 PM EDTSpecial Weather StatementJAXBrantley, Camden57 min
Sep 29, 12:00 AM EDTSpecial Weather StatementJAXBrantley45 min
Sep 29, 12:44 AM EDTSpecial Weather StatementJAXWayne46 min
Sep 29, 4:59 PM EDTAreal Flood AdvisoryJAXAppling, Bacon, Coffee, Jeff Davis83 min
Sep 29, 6:23 PM EDTAreal Flood AdvisoryJAXColumbia, Gilchrist, Suwannee82 min
Sep 29, 7:30 PM EDTAreal Flood AdvisoryJAXAlachua60 min

Nearby

Rip Current Statements in Georgia, 2010Rip Current Statements in Florida, 2010Every rip current statement in 2010

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.