Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 33, NWS Miami, FL

October 18, 2018Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Oct 18, 2018, 4:01 AM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Oct 18, 2018, 4:01 AM EDT (08:01 UTC)
Expired
Oct 19, 2018, 4:12 PM EDT
In force
36 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 08:03 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, 8.0 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 00:00Z on 2018-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 577 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 2018-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
577 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
984 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

390 
WHUS42 KMFL 180801
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
401 AM EDT Thu Oct 18 2018

FLZ168-172-173-182100-
/O.NEW.KMFL.RP.S.0033.181018T0801Z-181019T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
401 AM EDT Thu Oct 18 2018

...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 this evening.

* IMPACTS...Life threatening rip currents will pose hazard to 
  swimmers. Heed the advice of lifeguards and 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.

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.

&&

$$

FELL

http://www.weather.gov/miami
3 follow-up statements
748 
WHUS42 KMFL 181954
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
354 PM EDT Thu Oct 18 2018

FLZ168-172-173-200000-
/O.EXT.KMFL.RP.S.0033.000000T0000Z-181020T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
354 PM EDT Thu Oct 18 2018

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

* TIMING...Through this Friday evening.

* IMPACTS...Life threatening rip currents will pose hazard to 
  swimmers. Heed the advice of lifeguards and 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.

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
232 
WHUS42 KMFL 190708
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
308 AM EDT Fri Oct 19 2018

FLZ168-172-173-192100-
/O.CON.KMFL.RP.S.0033.000000T0000Z-181020T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
308 AM EDT Fri Oct 19 2018

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

* TIMING...Through this evening.

* IMPACTS...Life threatening rip currents will pose hazard to 
  swimmers. Heed the advice of lifeguards and 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.

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
211 
WHUS42 KMFL 192012
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
412 PM EDT Fri Oct 19 2018

FLZ168-172-173-192115-
/O.CAN.KMFL.RP.S.0033.000000T0000Z-181020T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
412 PM EDT Fri Oct 19 2018

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

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

The easterly winds have decreased to less than 15 mph this
afternoon along the east coast beaches of South Florida.
Therefore, the High Risk of Rip Currents have been cancelled for
the east coast beaches of South Florida.

$$


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.