Alert archive / Florida / Rip Current Statements in 2015

Rip Current Statement 3, NWS Jacksonville, FL

March 7, 2015Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Mar 7, 2015, 5:18 AM EST for Duval County, Flagler County, Nassau County, Florida. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Mar 7, 2015, 5:18 AM EST (10:18 UTC)
Expired: Mar 7, 2015, 6:00 PM EST
In force: 13 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 10:17 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, 10.3 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 8 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 429 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

297 
WHUS42 KJAX 071018
CFWJAX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
518 AM EST SAT MAR 7 2015

FLZ033-038-124-125-072300-
/O.NEW.KJAX.RP.S.0003.150307T1018Z-150307T2300Z/
ST. JOHNS-FLAGLER-COASTAL NASSAU-COASTAL DUVAL-
518 AM EST SAT MAR 7 2015

...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A HIGH
RIP CURRENT RISK...WHICH IS IN EFFECT THROUGH THIS AFTERNOON. 

* TIMING...THROUGH LATE THIS AFTERNOON.

* IMPACTS...MODERATE ONSHORE WINDS AND ROUGH SEAS WILL PRODUCE
  HAZARDOUS RIP CURRENTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A HIGH RISK OF RIP CURRENTS.

RIP CURRENTS WILL BE LIFE THREATENING...AND SWIMMING IS NOT
ADVISED.

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.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 1:44 PM EST	Frost Advisory	JAX	Baker, Suwannee	18 hr

Nearby

Rip Current Statements in Florida, 2015 Every rip current statement in 2015

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.