Alert archive / Florida / Rip Current Statements in 2020

Rip Current Statement 11, NWS Jacksonville, FL

April 6, 2020Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Apr 6, 2020, 2:39 AM EDT for Duval County, Flagler County, Nassau County, Florida. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Apr 6, 2020, 2:39 AM EDT (06:39 UTC)
Expired
Apr 6, 2020, 10:48 PM EDT
In force
20 hr
Issued by
NWS Jacksonville, FL

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 6.7 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 2020-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 00:00Z on 2020-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -102 square meters per square second.1939587897117Sfc1 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
31 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-102 m²/s²
0-3 km storm-relative helicity
-64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

743 
WHUS42 KJAX 060639
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
239 AM EDT Mon Apr 6 2020

FLZ124-125-133-138-070245-
/O.NEW.KJAX.RP.S.0011.200406T0639Z-200407T0600Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
239 AM EDT Mon Apr 6 2020

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

* WHAT...Dangerous rip currents.

* 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.

&&

$$
1 follow-up statement
134 
WHUS42 KJAX 070248
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
1048 PM EDT Mon Apr 6 2020

FLZ124-125-133-138-070400-
/O.CAN.KJAX.RP.S.0011.000000T0000Z-200407T0600Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
1048 PM EDT Mon Apr 6 2020

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 4:04 AM EDTDense Fog AdvisoryJAXBaker, Bradford, Duval, Gilchrist, Nassau, Suwannee and 1 more5 hr

Nearby

Rip Current Statements in Florida, 2020Every rip current statement in 2020

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.