Alert archive / Florida / Rip Current Statements in 2017

Rip Current Statement 42, NWS Miami, FL

November 28, 2017Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Nov 28, 2017, 3:14 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Nov 28, 2017, 3:14 AM EST (08:14 UTC)
Expired: Nov 28, 2017, 7:00 PM EST
In force: 16 hr
Issued by: NWS Miami, FL

Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 08:14 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, 8.2 hours before the alert went out and 39 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: 119 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 970 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

264 
WHUS42 KMFL 280814
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
314 AM EST TUE NOV 28 2017

FLZ168-172-173-281615-
/O.NEW.KMFL.RP.S.0042.171128T0814Z-171129T0000Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI-DADE-
314 AM EST TUE NOV 28 2017

...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 THE EVENING. 

* IMPACTS...STRONG RIP CURRENTS ARE FORECAST TO OCCUR ALONG THE 
  ATLANTIC BEACHES, WHICH WILL BE HAZARDOUS FOR THOSE IN THE 
  SURF ZONE. 

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.

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.

&&

$$


HTTP://WWW.WEATHER.GOV/MIAMI

1 follow-up statement

606 
WHUS42 KMFL 282357
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
657 PM EST TUE NOV 28 2017

FLZ168-172-173-290100-
/O.EXP.KMFL.RP.S.0042.000000T0000Z-171129T0000Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI-DADE-
657 PM EST TUE NOV 28 2017

...HIGH RIP CURRENT RISK WILL EXPIRE AT 7 PM EST THIS EVENING...

EASTERLY WINDS WILL WEAKEN SLIGHTLY OVERNIGHT INTO WEDNESDAY
MORNING, LOWERING THE RIP CURRENT RISK. THEREFORE, THE HIGH RIP 
CURRENT RISK WILL BE ALLOWED TO EXPIRE.  

$$

HTTP://WWW.WEATHER.GOV/MIAMI

Nearby

Rip Current Statements in Florida, 2017 Every rip current statement in 2017

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.