Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 25, NWS Miami, FL

May 20, 2018Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at May 20, 2018, 4:26 PM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 51 hr.

The area

The counties it named.

The facts

Issued
May 20, 2018, 4:26 PM EDT (20:26 UTC)
Expired
May 22, 2018, 7:53 PM EDT
In force
51 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 20:29 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 12:00Z, 8.4 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-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2018-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 315 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, Miami, FL at 12:00Z on 2018-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
315 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

284 
WHUS42 KMFL 202026
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
426 PM EDT Sun May 20 2018

FLZ168-172-173-220000-
/O.NEW.KMFL.RP.S.0025.180520T2026Z-180522T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
426 PM EDT Sun May 20 2018

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

The National Weather Service in Miami has issued a High Rip
Current Risk, which is in effect through Monday evening. 

* TIMING...Through Monday Evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Atlantic Beaches. 

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
5 follow-up statements
625 
WHUS42 KMFL 210802
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
402 AM EDT Mon May 21 2018

FLZ168-172-173-211615-
/O.EXT.KMFL.RP.S.0025.000000T0000Z-180523T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
402 AM EDT Mon May 21 2018

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH TUESDAY EVENING...

* TIMING...Through Tuesday Evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Atlantic Beaches. 

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
134 
WHUS42 KMFL 220749
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
349 AM EDT Tue May 22 2018

FLZ168-172-173-221600-
/O.CON.KMFL.RP.S.0025.000000T0000Z-180523T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
349 AM EDT Tue May 22 2018

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

* TIMING...Through Tuesday Evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Atlantic Beaches. 

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
971 
WHUS42 KMFL 221143
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
743 AM EDT Tue May 22 2018



FLZ168-172-173-230000-
/O.CON.KMFL.RP.S.0025.000000T0000Z-180523T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
743 AM EDT Tue May 22 2018

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

* TIMING...Through Tuesday Evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Atlantic Beaches. 

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
739 
WHUS42 KMFL 221944
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
344 PM EDT Tue May 22 2018


FLZ168-172-173-230000-
/O.CON.KMFL.RP.S.0025.000000T0000Z-180523T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
344 PM EDT Tue May 22 2018

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

* TIMING...Through Tuesday Evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Atlantic Beaches. 

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
192 
WHUS42 KMFL 222353
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
753 PM EDT Tue May 22 2018


FLZ168-172-173-230100-
/O.CAN.KMFL.RP.S.0025.000000T0000Z-180523T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
753 PM EDT Tue May 22 2018

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

The National Weather Service in Miami has cancelled the High Rip
Current Risk. There is now a moderate risk of rip currents at all
Atlantic Beaches.

$$


http://www.weather.gov/miami

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 5:28 AM EDTAreal Flood AdvisoryMFLBroward3 hr
May 20, 5:48 AM EDTSpecial Marine WarningMFL42 min
May 20, 6:21 AM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade3 hr
May 20, 6:27 AM EDTSpecial Marine WarningMFL33 min
May 20, 8:33 AM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade117 min
May 20, 10:35 AM EDTAreal Flood AdvisoryMFLBroward3 hr
May 20, 1:17 PM EDTAreal Flood AdvisoryMFLBroward4 hr

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.