Alert archive / Florida / Rip Current Statements in 2020

Rip Current Statement 56, NWS Miami, FL

December 23, 2020Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Dec 23, 2020, 2:34 AM EST for Palm Beach County, Florida. It took effect at Dec 23, 2020, 7:00 AM EST. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Dec 23, 2020, 2:34 AM EST (07:34 UTC)
In effect from
Dec 23, 2020, 7:00 AM EST
Expired
Dec 24, 2020, 2:37 AM EST
In force
20 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 07:31 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, 7.6 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 2020-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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 2020-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1192 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

631 
WHUS42 KMFL 230734
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
234 AM EST Wed Dec 23 2020

FLZ168-240000-
/O.NEW.KMFL.RP.S.0056.201223T1200Z-201224T0000Z/
Coastal Palm Beach-
234 AM EST Wed Dec 23 2020

...HIGH RIP CURRENT RISK IN EFFECT FROM 7 AM EST THIS MORNING
THROUGH THIS EVENING...

The National Weather Service in Miami has issued a High Rip
Current Risk, which is in effect from 7 AM EST this morning
through this evening. 

* WHAT...Dangerous rip currents.

* WHERE...Coastal Palm Beach County.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

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
3 follow-up statements
136 
WHUS42 KMFL 231952
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
252 PM EST Wed Dec 23 2020

FLZ168-250000-
/O.EXT.KMFL.RP.S.0056.000000T0000Z-201225T0000Z/
Coastal Palm Beach-
252 PM EST Wed Dec 23 2020

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

* WHAT...Dangerous rip currents.

* WHERE...Coastal Palm Beach County.

* WHEN...Through Thursday evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
818 
WHUS42 KMFL 232349
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
649 PM EST Wed Dec 23 2020


FLZ168-241200-
/O.CON.KMFL.RP.S.0056.000000T0000Z-201225T0000Z/
Coastal Palm Beach-
649 PM EST Wed Dec 23 2020

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

* WHAT...Dangerous rip currents.

* WHERE...Coastal Palm Beach County.

* WHEN...Through Thursday evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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
627 
WHUS42 KMFL 240737
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
237 AM EST Thu Dec 24 2020

FLZ168-240845-
/O.CAN.KMFL.RP.S.0056.000000T0000Z-201225T0000Z/
Coastal Palm Beach-
237 AM EST Thu Dec 24 2020

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

The small northeast swell in the Atlantic waters of Palm Beach
County has dissipated, as the winds have become more south to
southeast direction. This has allow for the threat of rip 
currents to subside some for today. Therefore, the High Risk of
Rip Currents has been cancelled for the beaches of Palm Beach
County for today.

$$

Baxter

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 23, 6:50 PM ESTSmall Craft AdvisoryMFL56 hr

Nearby

Rip Current Statements in Florida, 2020Every rip current statement in 2020

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.