Alert archive / Florida / Rip Current Statements in 2011

Rip Current Statement 13, NWS Miami, FL

October 16, 2011Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Oct 16, 2011, 4:52 AM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
Oct 16, 2011, 4:52 AM EDT (08:52 UTC)
Expired
Oct 17, 2011, 11:00 PM EDT
In force
42 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 08:53 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, 8.9 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 2011-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 727 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 2011-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
727 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

414 
WHUS42 KMFL 160852
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
452 AM EDT SUN OCT 16 2011

...HIGH RISK OF RIP CURRENTS ALONG THE ATLANTIC BEACHES...

FLZ168-172-173-171100-
/O.NEW.KMFL.RP.S.0013.111016T0852Z-111017T1200Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE-
452 AM EDT SUN OCT 16 2011

...HIGH RISK OF RIP CURRENTS AT THE ATLANTIC BEACHES...

* TIMING...STRONG EAST WINDS WILL INCREASE AND CONTINUE ACROSS THE
  AREA INTO MONDAY MORNING WHICH WILL KEEP INCREASINGLY DANGEROUS
  SURF AND STRONG RIP CURRENTS LIKELY ALONG THE ATLANTIC COAST
  BEACHES.

* IMPACTS...DANGEROUS RIP CURRENTS WILL REMAIN A THREAT ALONG THE
  ATLANTIC BEACHES THROUGH TODAY, TONIGHT, AND MONDAY.

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 JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN
CALM AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM
THE FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH.
DO NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A
STRONG SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
1 follow-up statement
565 
WHUS42 KMFL 170759
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
359 AM EDT MON OCT 17 2011

...HIGH RISK OF RIP CURRENTS ALONG THE ATLANTIC BEACHES...

FLZ168-172-173-171600-
/O.EXT.KMFL.RP.S.0013.000000T0000Z-111018T0300Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE-
359 AM EDT MON OCT 17 2011

...RIP CURRENT RISK NOW IN EFFECT THROUGH THIS EVENING...

* TIMING...STRONG EAST WINDS WILL CONTINUE ACROSS THE AREA KEEPING
  DANGEROUS SURF AND STRONG RIP CURRENTS ALONG THE ATLANTIC COAST
  BEACHES.

* IMPACTS...DANGEROUS RIP CURRENTS WILL REMAIN A THREAT ALONG THE
  ATLANTIC BEACHES THROUGH TODAY INTO EARLY THIS EVENING.

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 JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 16, 12:43 PM EDTSpecial Marine WarningMFL92 min
Oct 16, 1:37 PM EDTSpecial Weather StatementMFLMiami-Dade38 min
Oct 16, 2:08 PM EDTSpecial Marine WarningMFL82 min
Oct 16, 2:46 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade60 min
Oct 16, 4:27 PM EDTAreal Flood AdvisoryMFLBroward3 hr

Nearby

Rip Current Statements in Florida, 2011Every rip current statement in 2011

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.