Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 37, NWS Jacksonville, FL

October 24, 2018Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Oct 24, 2018, 3:01 AM EDT for Duval County, Flagler County, Nassau County, Florida. It took effect at Oct 24, 2018, 4:00 AM EDT. It was in force for 40 hr.

The area

The counties it named.

The facts

Issued
Oct 24, 2018, 3:01 AM EDT (07:01 UTC)
In effect from
Oct 24, 2018, 4:00 AM EDT
Expired
Oct 25, 2018, 8:00 PM EDT
In force
40 hr
Issued by
NWS Jacksonville, FL

Counties Duval County, FL, Flagler County, FL, Nassau County, FL

The radar

The Jacksonville radar (KJAX), 40 km from the middle of the area, began a volume at 07:04 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, 7.0 hours before the alert went out and 42 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 2018-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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 2018-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
105 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
732 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
-25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

423 
WHUS42 KJAX 240701
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
301 AM EDT Wed Oct 24 2018

FLZ124-125-133-138-250030-
/O.NEW.KJAX.RP.S.0037.181024T0800Z-181026T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
301 AM EDT Wed Oct 24 2018

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

The National Weather Service in Jacksonville has issued a High
Rip Current Risk, which is in effect through Thursday evening.

* TIMING...Through Thursday.

* IMPACTS...Life threatening rip currents.

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.

&&

$$
4 follow-up statements
948 
WHUS42 KJAX 241924
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
324 PM EDT Wed Oct 24 2018

FLZ124-125-133-138-250900-
/O.NEW.KJAX.CF.S.0004.181024T1924Z-181026T0000Z/
/O.CON.KJAX.RP.S.0037.000000T0000Z-181026T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
324 PM EDT Wed Oct 24 2018

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THURSDAY
EVENING...
...FULL MOON AND ROUGH SURF WILL PRODUCE ELEVATED WATER LEVELS AT
TIMES OF HIGH TIDE...

* LOCATIONS...High risk of rip currents continues for all
  southeast Georgia and northeast Florida beaches. Elevated water
  levels expected mainly for northeast Florida coastline.

* COASTAL FLOOD AND SHORELINE IMPACTS...Rough and dangerous surf
  could cause minor beach erosion. Astronomical higher tides with
  the full moon could cause elevated water levels during times of
  high tide.

* RIP CURRENT IMPACTS...Life threatening rip currents.

* TIMING...Through Thursday.

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. Pay attention to flags and posted signs. 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.

&&

$$
590 
WHUS42 KJAX 250701
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
301 AM EDT Thu Oct 25 2018


FLZ124-125-133-138-260000-
/O.CON.KJAX.CF.S.0004.000000T0000Z-181026T0000Z/
/O.CON.KJAX.RP.S.0037.000000T0000Z-181026T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
301 AM EDT Thu Oct 25 2018

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

...FULL MOON AND ROUGH SURF WILL PRODUCE ELEVATED WATER LEVELS AT
TIMES OF HIGH TIDE...

* LOCATIONS...High risk of rip currents continues for all
  southeast Georgia and northeast Florida beaches. Elevated water
  levels expected mainly for northeast Florida coastline.

* COASTAL FLOOD AND SHORELINE IMPACTS...Rough and dangerous surf 
  could cause minor beach erosion. Astronomical higher tides 
  with the full moon could cause elevated water levels during 
  times of high tide.

* RIP CURRENT IMPACTS...Life threatening rip currents.

* TIMING...Through this evening.

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. Pay attention to flags and posted signs. 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.

&&

$$
875 
WHUS42 KJAX 251901
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
301 PM EDT Thu Oct 25 2018

...COASTAL FLOOD STATEMENT EXTENDED THROUGH EARLY FRIDAY MORNING...

FLZ124-125-133-138-260000-
/O.EXT.KJAX.CF.S.0004.000000T0000Z-181026T0700Z/
/O.CON.KJAX.RP.S.0037.000000T0000Z-181026T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
301 PM EDT Thu Oct 25 2018

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

...FULL MOON AND ROUGH SURF WILL PRODUCE ELEVATED WATER LEVELS AT
TIMES OF HIGH TIDE...

* LOCATION...Northeast Florida coastline.

* COASTAL FLOOD AND SHORELINE IMPACTS...Rough and dangerous surf 
  could cause minor beach erosion. Astronomical higher tides 
  with the full moon could cause elevated water levels during 
  times of high tide.

* RIP CURRENT IMPACTS...Life threatening rip currents.

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. Pay attention to flags and posted signs. 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.

&&

$$
712 
WHUS42 KJAX 260011
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
811 PM EDT Thu Oct 25 2018

...COASTAL FLOOD STATEMENT EXTENDED THROUGH EARLY FRIDAY
MORNING...

FLZ124-125-133-138-260700-
/O.EXP.KJAX.RP.S.0037.000000T0000Z-181026T0000Z/
/O.CON.KJAX.CF.S.0004.000000T0000Z-181026T0700Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
811 PM EDT Thu Oct 25 2018

...FULL MOON AND ROUGH SURF WILL PRODUCE ELEVATED WATER LEVELS AT
TIMES OF HIGH TIDE...

* LOCATION...Northeast Florida coastline.

* COASTAL FLOOD AND SHORELINE IMPACTS...Rough and dangerous surf 
  could cause minor beach erosion. Astronomical higher tides 
  with the full moon could cause elevated water levels during 
  times of high tide.

* RIP CURRENT IMPACTS...Life threatening rip currents.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 3:27 AM EDTSmall Craft AdvisoryJAX3 days
Oct 24, 3:24 PM EDTCoastal Flood StatementJAXDuval, Flagler, Nassau43 hr

Nearby

Rip Current Statements in Florida, 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.