Alert archive / Florida / Rip Current Statements in 2021

Rip Current Statement 29, NWS Jacksonville, FL

November 23, 2021Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Nov 23, 2021, 1:06 AM EST for Duval County, Flagler County, Nassau County, Florida. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
Nov 23, 2021, 1:06 AM EST (06:06 UTC)
Expired
Nov 24, 2021, 7:00 PM EST
In force
42 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 06:10 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, 6.1 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 2021-11-23Temperature 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 00:00Z on 2021-11-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939587897Sfc1 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
1080 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

411 
WHUS42 KJAX 230606
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
106 AM EST Tue Nov 23 2021

FLZ124-125-133-138-241000-
/O.NEW.KJAX.RP.S.0029.211123T0606Z-211125T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
106 AM EST Tue Nov 23 2021

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

* WHAT...Dangerous rip currents and rough surf. 

* WHERE...Northeast Florida Beaches.

* WHEN...Through Wednesday evening.

* 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
270 
WHUS42 KJAX 240555
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
1255 AM EST Wed Nov 24 2021

FLZ124-125-133-138-250000-
/O.CON.KJAX.RP.S.0029.000000T0000Z-211125T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
1255 AM EST Wed Nov 24 2021

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

* WHAT...Dangerous rip currents.

* WHERE...Northeast Florida Beaches.

* WHEN...Through this evening.

* 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.

&&

$$
098 
WHUS42 KJAX 242354
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
654 PM EST Wed Nov 24 2021

FLZ124-125-133-138-250100-
/O.EXP.KJAX.RP.S.0029.000000T0000Z-211125T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
654 PM EST Wed Nov 24 2021

...HIGH RIP CURRENT RISK WILL EXPIRE AT 7 PM EST THIS EVENING...


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 23, 1:14 AM ESTGale WarningJAX11 hr
Nov 23, 1:14 AM ESTSmall Craft AdvisoryJAX38 hr
Nov 23, 2:34 PM ESTFrost AdvisoryJAXBaker, Gilchrist, Nassau, Suwannee, Union17 hr

Nearby

Rip Current Statements in Florida, 2021Every rip current statement in 2021

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.