Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 5, NWS Miami, FL

January 21, 2018Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Jan 21, 2018, 8:57 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Jan 21, 2018, 8:57 AM EST (13:57 UTC)
Expired
Jan 22, 2018, 3:49 AM EST
In force
19 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 14:00 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, 2.0 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 12:00Z on 2018-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2018-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
-253 J/kg
Mixed-layer LCL
999 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

091 
WHUS42 KMFL 211357
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
857 AM EST Sun Jan 21 2018

FLZ168-172-173-221200-
/O.NEW.KMFL.RP.S.0005.180121T1357Z-180122T1200Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
857 AM EST Sun Jan 21 2018

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

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

* TIMING...Through Monday morning.

* IMPACTS...Breaking waves and longshore currents can knock you
  off the sandbar into deeper water. Rip currents will become
  strong near structures in the water such as piers, jetties and
  reefs.

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
046 
WHUS42 KMFL 220849
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
349 AM EST Mon Jan 22 2018


FLZ168-172-173-221000-
/O.CAN.KMFL.RP.S.0005.000000T0000Z-180122T1200Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
349 AM EST Mon Jan 22 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.