Alert archive / Florida / Rip Current Statements in 2021

Rip Current Statement 18, NWS Jacksonville, FL

July 24, 2021Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Jul 24, 2021, 3:03 AM EDT for Duval County, Flagler County, Nassau County, Florida. It took effect at Jul 24, 2021, 8:00 AM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jul 24, 2021, 3:03 AM EDT (07:03 UTC)
In effect from
Jul 24, 2021, 8:00 AM EDT
Expired
Jul 24, 2021, 10:57 PM EDT
In force
15 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 07:06 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 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 2021-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1679 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 2021-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
1679 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
791 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

As transmitted.

501 
WHUS42 KJAX 240703
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
303 AM EDT Sat Jul 24 2021

FLZ124-125-133-138-250300-
/O.NEW.KJAX.RP.S.0018.210724T1200Z-210725T0300Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
303 AM EDT Sat Jul 24 2021

...HIGH RIP CURRENT RISK IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

* WHAT...Dangerous rip currents expected.

* WHERE...Northeast Florida Beaches.

* WHEN...From 8 AM EDT this morning 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.

&&

$$
2 follow-up statements
148 
WHUS42 KJAX 241848
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
248 PM EDT Sat Jul 24 2021

FLZ124-125-133-138-250400-
/O.NEW.KJAX.CF.Y.0001.210725T0000Z-210725T0400Z/
/O.CON.KJAX.RP.S.0018.000000T0000Z-210725T0300Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
248 PM EDT Sat Jul 24 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
MIDNIGHT EDT TONIGHT...

* WHAT...For the Coastal Flood Advisory, minor coastal flooding 
  expected. For the High Rip Current Risk, dangerous rip 
  currents.

* WHERE...Northeast Florida Beaches.

* WHEN...For the Coastal Flood Advisory, from 8 PM this evening 
  to midnight EDT tonight. For the High Rip Current Risk, until 
  11 PM EDT this evening.

* IMPACTS...Minor flooding of lots, parks, and roads with only 
  isolated road closures expected. Rip currents can sweep even the
  best swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive around barricades or through water of unknown depth.
Take the necessary actions to protect flood-prone property.

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.

&&

$$

GAZ154-166-250400-
/O.NEW.KJAX.CF.Y.0001.210725T0000Z-210725T0400Z/
Coastal Glynn-Coastal Camden-
248 PM EDT Sat Jul 24 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
MIDNIGHT EDT TONIGHT...

* WHAT...Minor coastal flooding expected.

* WHERE...Southeast Georgia Beaches.

* WHEN...From 8 PM this evening to midnight EDT tonight.

* IMPACTS...Minor flooding of lots, parks, and roads with only 
  isolated road closures expected.
 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive around barricades or through water of unknown depth.
Take the necessary actions to protect flood-prone property.

&&

$$
181 
WHUS42 KJAX 250257
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
1057 PM EDT Sat Jul 24 2021

FLZ124-125-133-138-250400-
/O.CAN.KJAX.CF.Y.0001.000000T0000Z-210725T0400Z/
/O.CAN.KJAX.RP.S.0018.000000T0000Z-210725T0300Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
1057 PM EDT Sat Jul 24 2021

...COASTAL FLOOD ADVISORY IS CANCELLED...
...HIGH RIP CURRENT RISK IS CANCELLED...

$$

GAZ154-166-250400-
/O.CAN.KJAX.CF.Y.0001.000000T0000Z-210725T0400Z/
Coastal Glynn-Coastal Camden-
1057 PM EDT Sat Jul 24 2021

...COASTAL FLOOD ADVISORY IS CANCELLED...


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 2:48 PM EDTCoastal Flood AdvisoryJAXDuval, Flagler, Nassau8 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.