Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 9, NWS Jacksonville, FL

April 23, 2018Duval County, Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this rip current statement at Apr 23, 2018, 2:36 AM EDT for Duval County, Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Apr 23, 2018, 2:36 AM EDT (06:36 UTC)
Expired
Apr 23, 2018, 8:00 PM EDT
In force
17 hr
Issued by
NWS Jacksonville, FL

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 6.6 hours before the alert went out and 13 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 2018-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 110 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 00:00Z on 2018-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 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
110 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

942 
WHUS42 KJAX 230636
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
236 AM EDT Mon Apr 23 2018


FLZ033-038-124-125-GAZ154-166-240000-
/O.NEW.KJAX.RP.S.0009.180423T0636Z-180424T0000Z/
St. Johns-Flagler-Coastal Nassau-Coastal Duval-Coastal Glynn-
Coastal Camden-
236 AM EDT Mon Apr 23 2018

...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 through this evening. 

* TIMING...Until 8 PM EDT.

* IMPACTS...Rip currents will be life threatening to anyone who 
  enters the surf. 

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.

&&

$$
1 follow-up statement
433 
WHUS42 KJAX 240014
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
814 PM EDT Mon Apr 23 2018

FLZ033-038-124-125-GAZ154-166-240115-
/O.EXP.KJAX.RP.S.0009.000000T0000Z-180424T0000Z/
St. Johns-Flagler-Coastal Nassau-Coastal Duval-Coastal Glynn-
Coastal Camden-
814 PM EDT Mon Apr 23 2018

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


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 22, 10:17 PM EDTSpecial Weather StatementJAXGilchrist43 min
Apr 22, 10:19 PM EDTSpecial Weather StatementJAXLevy41 min
Apr 22, 10:55 PM EDTSpecial Weather StatementJAXColumbia50 min
Apr 23, 12:13 AM EDTSpecial Marine WarningJAX62 min
Apr 23, 1:15 AM EDTSpecial Marine WarningJAX60 min
Apr 23, 1:17 AM EDTSpecial Marine WarningJAX58 min
Apr 23, 1:58 AM EDTSpecial Marine WarningJAX50 min
Apr 23, 2:11 AM EDTSpecial Marine WarningJAX37 min
Apr 23, 7:35 AM EDTSpecial Marine WarningJAX43 min
Apr 23, 9:43 AM EDTSpecial Weather StatementJAXNassau17 min
Apr 23, 9:49 AM EDTSpecial Marine WarningJAX56 min
Apr 23, 10:27 AM EDTSpecial Weather StatementJAXSaint Johns33 min
Apr 23, 11:01 AM EDTSpecial Weather StatementJAXSaint Johns29 min
Apr 23, 2:56 PM EDTSpecial Weather StatementJAXMarion49 min
Apr 23, 3:43 PM EDTSpecial Weather StatementJAXFlagler47 min
Apr 23, 3:45 PM EDTSpecial Weather StatementJAXNassau45 min
Apr 23, 4:46 PM EDTSpecial Marine WarningJAX59 min
Apr 23, 4:51 PM EDTSpecial Weather StatementJAXDuval39 min
Apr 23, 5:17 PM EDTSpecial Marine WarningJAX43 min
Apr 23, 5:44 PM EDTSpecial Marine WarningJAX46 min
Apr 23, 6:00 PM EDTSpecial Marine WarningJAX60 min
Apr 23, 6:07 PM EDTSpecial Weather StatementJAXDuval23 min
Apr 23, 6:13 PM EDTSpecial Marine WarningJAX62 min
Apr 23, 7:01 PM EDTSpecial Marine WarningJAX24 min
Apr 22, 10:48 PM EDTSpecial Weather StatementJAXCamden42 min
Apr 22, 11:27 PM EDTAreal Flood AdvisoryJAXCamden93 min
Apr 22, 11:31 PM EDTSpecial Weather StatementJAXCamden44 min
Apr 23, 3:57 AM EDTSpecial Weather StatementJAXWare33 min
Apr 23, 4:56 PM EDTSpecial Weather StatementJAXBrantley49 min
Apr 23, 5:32 PM EDTSpecial Weather StatementJAXGlynn28 min

Nearby

Rip Current Statements in Florida, 2018Rip Current Statements in Georgia, 2018Every rip current statement in 2018

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.