Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 18, NWS Jacksonville, FL

September 3, 2018Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Sep 3, 2018, 11:06 AM EDT for Duval County, Flagler County, Nassau County, Florida. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Sep 3, 2018, 11:06 AM EDT (15:06 UTC)
Expired
Sep 3, 2018, 8:00 PM EDT
In force
9 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 15:07 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, 3.1 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 12:00Z on 2018-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1961 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 12:00Z on 2018-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1961 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
797 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

173 
WHUS42 KJAX 031506
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
1106 AM EDT Mon Sep 3 2018


FLZ124-125-133-138-040000-
/O.NEW.KJAX.RP.S.0018.180903T1506Z-180904T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
1106 AM EDT Mon Sep 3 2018

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The National Weather Service in Jacksonville has issued a High
Rip Current Risk, which is in effect until 8 PM EDT this evening.

* LOCATIONS...Northeast Florida beaches.

* SURF AND RIP CURRENT RISK...Rough surf and life-threatening rip
  currents

* TIMING...through the rest of today

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a High Risk of rip currents.

Rip currents will be life threatening.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins, jetties
and piers. Heed the advice of lifeguards and the beach patrol.
Pay attention to flags and posted signs.

Swim near a lifeguard. If caught in a rip current remain calm.
Don't fight the current. Swim in a direction following the
shoreline. If unable to escape, face the shore and call or wave
for help. If tired, float or tread water until out of the rip
current.

&&

$$
1 follow-up statement
211 
WHUS42 KJAX 040010
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
810 PM EDT Mon Sep 3 2018



FLZ124-125-133-138-040115-
/O.EXP.KJAX.RP.S.0018.000000T0000Z-180904T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
810 PM EDT Mon Sep 3 2018

...HIGH RIP CURRENT RISK HAS EXPIRED...

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 12:39 PM EDTSpecial Weather StatementJAXDuval21 min
Sep 3, 1:00 PM EDTSpecial Weather StatementJAXBaker30 min
Sep 3, 3:21 PM EDTSpecial Weather StatementJAXMarion24 min
Sep 3, 4:58 PM EDTSpecial Weather StatementJAXFlagler32 min
Sep 3, 6:26 PM EDTSpecial Weather StatementJAXNassau34 min

Nearby

Rip Current Statements in Florida, 2018Every rip current statement in 2018

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.