Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 8, NWS Jacksonville, FL

April 22, 2018Camden County, Glynn County, Georgia; Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Apr 22, 2018, 2:49 AM EDT for Camden County, Glynn County, Georgia; Duval County, Flagler County, Nassau County, Florida. It took effect at Apr 22, 2018, 5:00 AM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Apr 22, 2018, 2:49 AM EDT (06:49 UTC)
In effect from: Apr 22, 2018, 5:00 AM EDT
Expired: Apr 22, 2018, 8:00 PM EDT
In force: 15 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, 6.8 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-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: 12 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 823 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

027 
WHUS42 KJAX 220649
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
249 AM EDT Sun Apr 22 2018

FLZ033-038-124-125-GAZ154-166-230000-
/O.NEW.KJAX.RP.S.0008.180422T0900Z-180423T0000Z/
St. Johns-Flagler-Coastal Nassau-Coastal Duval-Coastal Glynn-
Coastal Camden-
249 AM EDT Sun Apr 22 2018

...HIGH RIP CURRENT RISK IN EFFECT THROUGH 8 PM EDT...

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 current development is expected today. These rip 
  currents will be life threatening to anyone who enters the surf.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a High Risk of life threatening 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.

Swim near a lifeguard. If caught in a rip current remain calm.
Don't fight the current. Swim in a direction following the
shoreline. If unable to escape, face the shore and call or wave
for help. If tired, float or tread water until out of the rip
current.

&&

$$

1 follow-up statement

618 
WHUS42 KJAX 230000
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
800 PM EDT Sun Apr 22 2018


FLZ033-038-124-125-GAZ154-166-230100-
/O.EXP.KJAX.RP.S.0008.000000T0000Z-180423T0000Z/
St. Johns-Flagler-Coastal Nassau-Coastal Duval-Coastal Glynn-
Coastal Camden-
800 PM EDT Sun Apr 22 2018

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


$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 6:39 PM EDT	Special Weather Statement	JAX	Suwannee	51 min

Nearby

Rip Current Statements in Florida, 2018 Rip Current Statements in Georgia, 2018 Every 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.