Alert archive / Florida / Rip Current Statements in 2023

Rip Current Statement 25, NWS Jacksonville, FL

August 20, 2023Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Aug 20, 2023, 3:56 AM EDT for Duval County, Flagler County, Nassau County, Florida. It took effect at Aug 20, 2023, 7:00 AM EDT. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued
Aug 20, 2023, 3:56 AM EDT (07:56 UTC)
In effect from
Aug 20, 2023, 7:00 AM EDT
Expired
Aug 21, 2023, 8:30 PM EDT
In force
38 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 07:58 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, 7.9 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 2023-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1651 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 2023-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1651 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1042 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

648 
WHUS42 KJAX 200756
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
356 AM EDT Sun Aug 20 2023

FLZ124-125-133-138-202200-
/O.NEW.KJAX.RP.S.0025.230820T1100Z-230821T0800Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
356 AM EDT Sun Aug 20 2023

...HIGH RIP CURRENT RISK IN EFFECT FROM 7 AM EDT THIS MORNING
THROUGH LATE TONIGHT...

* WHAT...Dangerous rip currents expected.

* WHERE...Northeast Florida Beaches.

* WHEN...From 7 AM EDT this morning through late tonight.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
4 follow-up statements
208 
WHUS42 KJAX 210025
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
825 PM EDT Sun Aug 20 2023

FLZ124-125-133-138-210800-
/O.CON.KJAX.RP.S.0025.000000T0000Z-230821T0800Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
825 PM EDT Sun Aug 20 2023

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 4 AM EDT
MONDAY...

* WHAT...Dangerous rip currents.

* WHERE...Northeast Florida Beaches.

* WHEN...Until 4 AM EDT Monday.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
914 
WHUS42 KJAX 210752
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
352 AM EDT Mon Aug 21 2023

FLZ124-125-210900-
/O.CAN.KJAX.RP.S.0025.000000T0000Z-230821T0800Z/
Coastal Nassau-Coastal Duval-
352 AM EDT Mon Aug 21 2023

...HIGH RIP CURRENT RISK IS CANCELLED...

$$

FLZ133-138-212200-
/O.EXT.KJAX.RP.S.0025.000000T0000Z-230822T0800Z/
Coastal St. Johns-Coastal Flagler-
352 AM EDT Mon Aug 21 2023

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Dangerous rip currents.

* WHERE...Coastal St. Johns and Coastal Flagler Counties.

* WHEN...Through late tonight.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
485 
WHUS42 KJAX 211824
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
224 PM EDT Mon Aug 21 2023

FLZ133-138-220800-
/O.CON.KJAX.RP.S.0025.000000T0000Z-230822T0800Z/
Coastal St. Johns-Coastal Flagler-
224 PM EDT Mon Aug 21 2023

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Dangerous rip currents.

* WHERE...Coastal St. Johns and Coastal Flagler Counties.

* WHEN...Through late tonight.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
928 
WHUS42 KJAX 220030
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
830 PM EDT Mon Aug 21 2023

FLZ133-138-220130-
/O.CAN.KJAX.RP.S.0025.000000T0000Z-230822T0800Z/
Coastal St. Johns-Coastal Flagler-
830 PM EDT Mon Aug 21 2023

...HIGH RIP CURRENT RISK IS CANCELLED...

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 8:50 PM EDTSpecial Weather StatementJAXCitrus25 min
Aug 20, 12:46 PM EDTSpecial Weather StatementJAXAlachua, Bradford, Union29 min
Aug 20, 1:45 PM EDTSpecial Weather StatementJAXMarion30 min
Aug 20, 2:42 PM EDTSpecial Weather StatementJAXMarion33 min
Aug 20, 4:30 PM EDTSpecial Weather StatementJAXHamilton45 min

Nearby

Rip Current Statements in Florida, 2023Every rip current statement in 2023

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.