Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 21, NWS Miami, FL

April 21, 2018Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Apr 21, 2018, 3:07 AM EDT for Palm Beach County, Florida. It took effect at Apr 21, 2018, 8:00 AM EDT. It was in force for 60 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 2018, 3:07 AM EDT (07:07 UTC)
In effect from
Apr 21, 2018, 8:00 AM EDT
Expired
Apr 23, 2018, 7:32 PM EDT
In force
60 hr
Issued by
NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 115 km from the middle of the area, began a volume at 07:08 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, 7.1 hours before the alert went out and 93 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 00:00Z on 2018-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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 00:00Z on 2018-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 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
17 J/kg
Mixed-layer CIN
-338 J/kg
Mixed-layer LCL
1494 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

975 
WHUS42 KMFL 210707
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
307 AM EDT Sat Apr 21 2018

FLZ168-220000-
/O.NEW.KMFL.RP.S.0021.180421T1200Z-180422T0000Z/
Coastal Palm Beach-
307 AM EDT Sat Apr 21 2018

...HIGH RIP CURRENT RISK IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

The National Weather Service in Miami has issued a High Rip
Current Risk, which is in effect from 8 AM EDT this morning
through this evening. 

* TIMING...through at least this evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
8 follow-up statements
905 
WHUS42 KMFL 211146
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
746 AM EDT Sat Apr 21 2018

FLZ168-220000-
/O.CON.KMFL.RP.S.0021.180421T1200Z-180422T0000Z/
Coastal Palm Beach-
746 AM EDT Sat Apr 21 2018

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

* TIMING...through at least this evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
668 
WHUS42 KMFL 212019
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
419 PM EDT Sat Apr 21 2018


FLZ168-220430-
/O.EXT.KMFL.RP.S.0021.000000T0000Z-180423T0000Z/
Coastal Palm Beach-
419 PM EDT Sat Apr 21 2018

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

* TIMING...through Sunday evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
462 
WHUS42 KMFL 220745
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
345 AM EDT Sun Apr 22 2018

FLZ168-221545-
/O.CON.KMFL.RP.S.0021.000000T0000Z-180423T0000Z/
Coastal Palm Beach-
345 AM EDT Sun Apr 22 2018

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

* TIMING...through this evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
617 
WHUS42 KMFL 222005
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
405 PM EDT Sun Apr 22 2018


FLZ168-230415-
/O.EXT.KMFL.RP.S.0021.000000T0000Z-180424T0000Z/
Coastal Palm Beach-
405 PM EDT Sun Apr 22 2018

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

* TIMING...through Monday evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
196 
WHUS42 KMFL 230736
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
336 AM EDT Mon Apr 23 2018

FLZ168-231545-
/O.CON.KMFL.RP.S.0021.000000T0000Z-180424T0000Z/
Coastal Palm Beach-
336 AM EDT Mon Apr 23 2018

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

* TIMING...through this evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
911 
WHUS42 KMFL 231509
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
1109 AM EDT Mon Apr 23 2018

FLZ168-232315-
/O.CON.KMFL.RP.S.0021.000000T0000Z-180424T0000Z/
Coastal Palm Beach-
1109 AM EDT Mon Apr 23 2018

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

* TIMING...through this evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
267 
WHUS42 KMFL 232102
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
502 PM EDT Mon Apr 23 2018

FLZ168-240000-
/O.CON.KMFL.RP.S.0021.000000T0000Z-180424T0000Z/
Coastal Palm Beach-
502 PM EDT Mon Apr 23 2018

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

* TIMING...through this evening.

* IMPACTS...Strong rip currents will be hazardous for those in 
  the surf zone along the Palm 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
386 
WHUS42 KMFL 232332
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
732 PM EDT Mon Apr 23 2018

FLZ168-240045-
/O.CAN.KMFL.RP.S.0021.000000T0000Z-180424T0000Z/
Coastal Palm Beach-
732 PM EDT Mon Apr 23 2018

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

The National Weather Service in Miami has cancelled the High Rip
Current Risk.

&&



$$


http://www.weather.gov/miami

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.