Alert archive / Florida / Rip Current Statements in 2015

Rip Current Statement 22, NWS Miami, FL

April 9, 2015Miami-Dade County, Florida

NWS Miami, FL issued this rip current statement at Apr 9, 2015, 3:01 AM EDT for Miami-Dade County, Florida. It took effect at Apr 9, 2015, 5:00 AM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Apr 9, 2015, 3:01 AM EDT (07:01 UTC)
In effect from: Apr 9, 2015, 5:00 AM EDT
Expired: Apr 9, 2015, 8:00 PM EDT
In force: 15 hr
Issued by: NWS Miami, FL

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 9 km from the middle of the area, began a volume at 07:03 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

Miami, FL (KMFL), launched 00:00Z, 7.0 hours before the alert went out and 31 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: 1123 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 835 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 6 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.

641 
WHUS42 KMFL 090701
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
301 AM EDT THU APR 9 2015


FLZ173-100000-
/O.NEW.KMFL.RP.S.0022.150409T0900Z-150410T0000Z/
COASTAL MIAMI DADE-
301 AM EDT THU APR 9 2015

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

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

* TIMING...THROUGH EARLY THIS EVENING.

* IMPACTS...STRONG RIP CURRENTS ARE LIKELY ALONG THE MIAMI-DADE
  COUNTY BEACHES. SWIMMING IS NOT ADVISED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A HIGH RISK OF RIP CURRENTS.

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...BEACH PATROL
FLAGS AND SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...YELL FOR HELP. REMAIN
CALM...DO NOT EXHAUST YOURSELF AND STAY AFLOAT WHILE WAITING FOR
HELP. IF YOU HAVE TO SWIM OUT OF A RIP CURRENT...SWIM PARALLEL TO
SHORE AND BACK TOWARD THE BEACH WHEN POSSIBLE. DO NOT ATTEMPT TO
SWIM DIRECTLY AGAINST A RIP CURRENT AS YOU WILL TIRE QUICKLY. 

&&

$$

1 follow-up statement

422 
WHUS42 KMFL 100012
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
812 PM EDT THU APR 9 2015

FLZ173-100115-
/O.EXP.KMFL.RP.S.0022.000000T0000Z-150410T0000Z/
COASTAL MIAMI DADE-
812 PM EDT THU APR 9 2015

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

WITH EASTERLY WINDS WEAKENING SOMEWHAT TONIGHT, THE HIGH RISK OF
RIP CURRENTS HAS BEEN ALLOWED TO EXPIRE. HOWEVER, A MODERATE RISK
OF RIP CURRENTS REMAINS THIS EVENING ALONG THE MIAMI-DADE BEACHES.

$$

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.