Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 35, NWS Jacksonville, FL

October 18, 2018Duval County, Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this rip current statement at Oct 18, 2018, 3:03 AM EDT for Duval County, Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia. It took effect at Oct 18, 2018, 11:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Oct 18, 2018, 3:03 AM EDT (07:03 UTC)
In effect from
Oct 18, 2018, 11:00 AM EDT
Expired
Oct 18, 2018, 8:00 PM EDT
In force
9 hr
Issued by
NWS Jacksonville, FL

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

The radar

The Jacksonville radar (KJAX), 13 km from the middle of the area, began a volume at 07:05 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, 7.1 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 2018-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1992 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 2018-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939Sfc1 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
1992 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1042 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

793 
WHUS42 KJAX 180703
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
303 AM EDT Thu Oct 18 2018

FLZ124-125-133-138-GAZ154-166-190000-
/O.NEW.KJAX.RP.S.0035.181018T1500Z-181019T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
Coastal Glynn-Coastal Camden-
303 AM EDT Thu Oct 18 2018

...HIGH RIP CURRENT RISK IN EFFECT FROM 11 AM EDT THIS MORNING
THROUGH THIS EVENING...

The National Weather Service in Jacksonville has issued a High
Rip Current Risk, which is in effect from 11 AM EDT this morning
through this evening.

* TIMING...Through Thursday evening.

* IMPACTS...Life threatening rip currents and rough surf are
  likely. 
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a High Risk of rip currents.

Rip currents will be life threatening.

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.

&&

$$
2 follow-up statements
531 
WHUS42 KJAX 181951
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
351 PM EDT Thu Oct 18 2018

FLZ124-125-133-138-GAZ154-166-190000-
/O.CON.KJAX.RP.S.0035.000000T0000Z-181019T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
Coastal Glynn-Coastal Camden-
351 PM EDT Thu Oct 18 2018

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* TIMING...Through this evening.

* IMPACTS...Life threatening rip currents and rough surf are 
  likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Rip currents will be life threatening.

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.

&&

$$
859 
WHUS42 KJAX 182346
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
746 PM EDT Thu Oct 18 2018

FLZ124-125-133-138-GAZ154-166-190100-
/O.EXP.KJAX.RP.S.0035.000000T0000Z-181019T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
Coastal Glynn-Coastal Camden-
746 PM EDT Thu Oct 18 2018

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

Elevated Risk of Rip currents will continue this week. Heed the 
advice of lifeguards and the beach patrol. Pay attention to flags 
and posted signs.

$$

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; radar from the NEXRAD Level II archive.