Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 20, NWS Miami, FL

April 16, 2018Collier County, Florida

NWS Miami, FL issued this rip current statement at Apr 16, 2018, 3:00 AM EDT for Collier County, Florida. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Apr 16, 2018, 3:00 AM EDT (07:00 UTC)
Expired
Apr 16, 2018, 7:19 PM EDT
In force
16 hr
Issued by
NWS Miami, FL

County Collier County, FL

The radar

The Miami radar (KAMX), 111 km from the middle of the area, began a volume at 07:02 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, 7.0 hours before the alert went out and 113 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 2018-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 653 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 2018-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 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
653 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
949 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.7
Supercell composite
7.5

Open this sounding in Storm Lab

The text

As transmitted.

933 
WHUS42 KMFL 160700
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
300 AM EDT Mon Apr 16 2018

FLZ069-170000-
/O.NEW.KMFL.RP.S.0020.180416T0700Z-180417T0000Z/
Coastal Collier-
300 AM EDT Mon Apr 16 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...Strong rip currents will be hazardous for those in the
  surf zone along the Gulf 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
3 follow-up statements
175 
WHUS42 KMFL 161153
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
753 AM EDT Mon Apr 16 2018


FLZ069-170000-
/O.CON.KMFL.RP.S.0020.000000T0000Z-180417T0000Z/
Coastal Collier-
753 AM EDT Mon Apr 16 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 Gulf 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
163 
WHUS42 KMFL 162053
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
453 PM EDT Mon Apr 16 2018


FLZ069-170000-
/O.CON.KMFL.RP.S.0020.000000T0000Z-180417T0000Z/
Coastal Collier-
453 PM EDT Mon Apr 16 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 Gulf 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
616 
WHUS42 KMFL 162319
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
719 PM EDT Mon Apr 16 2018


FLZ069-170030-
/O.CAN.KMFL.RP.S.0020.000000T0000Z-180417T0000Z/
Coastal Collier-
719 PM EDT Mon Apr 16 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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 8:09 PM EDTSpecial Weather StatementMFLPalm Beach51 min
Apr 15, 8:15 PM EDTSpecial Marine WarningMFL30 min
Apr 15, 8:43 PM EDTSpecial Marine WarningMFL92 min
Apr 15, 8:43 PM EDTSpecial Weather StatementMFLBroward, Miami-Dade62 min
Apr 15, 10:11 PM EDTSpecial Marine WarningMFL64 min
Apr 15, 11:09 PM EDTSpecial Marine WarningMFL96 min
Apr 15, 11:12 PM EDTSpecial Marine WarningMFL37 min
Apr 16, 12:46 AM EDTSpecial Marine WarningMFL89 min

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.