Alert archive / Florida / Rip Current Statements in 2023

Rip Current Statement 14, NWS Jacksonville, FL

April 21, 2023Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Apr 21, 2023, 9:20 AM EDT for Duval County, Flagler County, Nassau County, Florida. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 2023, 9:20 AM EDT (13:20 UTC)
Expired
Apr 21, 2023, 8:20 PM EDT
In force
11 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 13:20 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 12:00Z, 1.3 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 12:00Z on 2023-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2023-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
-17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

444 
WHUS42 KJAX 211320
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
920 AM EDT Fri Apr 21 2023

FLZ124-125-133-138-212300-
/O.NEW.KJAX.RP.S.0014.230421T1320Z-230422T0700Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
920 AM EDT Fri Apr 21 2023

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

* WHAT...Dangerous rip currents, especially this afternoon around
  low tide.

* WHERE...Northeast Florida Beaches.

* 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.

&&

$$
2 follow-up statements
632 
WHUS42 KJAX 211925
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
325 PM EDT Fri Apr 21 2023

FLZ124-125-133-138-220700-
/O.CON.KJAX.RP.S.0014.000000T0000Z-230422T0700Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
325 PM EDT Fri Apr 21 2023

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 3 AM EDT
SATURDAY...

* WHAT...Dangerous rip currents.

* WHERE...Northeast Florida Beaches.

* WHEN...Until 3 AM EDT Saturday.

* 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.

&&

$$
784 
WHUS42 KJAX 220020
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
820 PM EDT Fri Apr 21 2023

FLZ124-125-133-138-220130-
/O.CAN.KJAX.RP.S.0014.000000T0000Z-230422T0700Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
820 PM EDT Fri Apr 21 2023

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

$$

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.