Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 41, NWS Miami, FL

December 10, 2018Collier County, Florida

NWS Miami, FL issued this rip current statement at Dec 10, 2018, 2:31 AM EST for Collier County, Florida. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Dec 10, 2018, 2:31 AM EST (07:31 UTC)
Expired
Dec 10, 2018, 3:32 PM EST
In force
13 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 07:33 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, 7.5 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 2018-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 851 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 2018-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.19395878Sfc1 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
851 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
714 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

996 
WHUS42 KMFL 100731
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
231 AM EST Mon Dec 10 2018

FLZ069-110000-
/O.NEW.KMFL.RP.S.0041.181210T0731Z-181211T0000Z/
Coastal Collier-
231 AM EST Mon Dec 10 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 a 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
2 follow-up statements
788 
WHUS42 KMFL 101404
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
904 AM EST Mon Dec 10 2018

FLZ069-110000-
/O.CON.KMFL.RP.S.0041.000000T0000Z-181211T0000Z/
Coastal Collier-
904 AM EST Mon Dec 10 2018

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* TIMING...through this evening.

* IMPACTS...Life threatening rip currents will pose a 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
200 
WHUS42 KMFL 102032
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Miami FL
332 PM EST Mon Dec 10 2018

FLZ069-102145-
/O.CAN.KMFL.RP.S.0041.000000T0000Z-181211T0000Z/
Coastal Collier-
332 PM EST Mon Dec 10 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
Dec 9, 9:49 PM ESTSmall Craft AdvisoryMFL12 hr
Dec 10, 4:21 PM ESTSmall Craft AdvisoryMFL51 hr

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.