Alert archive / Florida / Rip Current Statements in 2020

Rip Current Statement 9, NWS Jacksonville, FL

March 10, 2020Flagler County, Florida

NWS Jacksonville, FL issued this rip current statement at Mar 10, 2020, 3:49 AM EDT for Flagler County, Florida. It took effect at Mar 10, 2020, 4:00 AM EDT. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Mar 10, 2020, 3:49 AM EDT (07:49 UTC)
In effect from
Mar 10, 2020, 4:00 AM EDT
Expired
Mar 11, 2020, 3:00 AM EDT
In force
23 hr
Issued by
NWS Jacksonville, FL

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 119 km from the middle of the area, began a volume at 07:53 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, 7.8 hours before the alert went out and 121 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 2020-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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 2020-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.19395878Sfc1 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
29 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1122 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

042 
WHUS42 KJAX 100749
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
349 AM EDT Tue Mar 10 2020

FLZ133-138-102015-
/O.CAN.KJAX.RP.S.0008.000000T0000Z-200310T0800Z/
/O.NEW.KJAX.RP.S.0009.200310T0800Z-200311T0700Z/
Coastal St. Johns-Coastal Flagler-
349 AM EDT Tue Mar 10 2020

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

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

* 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.

&&

$$

FLZ124-125-100900-
/O.CAN.KJAX.RP.S.0008.000000T0000Z-200310T0800Z/
Coastal Nassau-Coastal Duval-
349 AM EDT Tue Mar 10 2020

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

Moderate risk of rip currents. Life-threatening rip currents are
still possible.

$$
1 follow-up statement
763 
WHUS42 KJAX 101934
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
334 PM EDT Tue Mar 10 2020

FLZ133-138-110700-
/O.CON.KJAX.RP.S.0009.000000T0000Z-200311T0700Z/
Coastal St. Johns-Coastal Flagler-
334 PM EDT Tue Mar 10 2020

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

* WHAT...Dangerous rip currents.

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

* WHEN...Until 3 AM EDT Wednesday.

* 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.

&&

$$

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; radar from the NEXRAD Level II archive.