Alert archive / Florida / Coastal Flood Statements in 2011

Coastal Flood Statement 13, NWS Miami, FL

May 30, 2011Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this coastal flood statement at May 30, 2011, 4:58 AM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
May 30, 2011, 4:58 AM EDT (08:58 UTC)
Expired
May 30, 2011, 10:27 AM EDT
In force
5 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 08:57 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, 9.0 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 00:00Z on 2011-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 776 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 2011-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
776 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1201 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
2 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.

073 
WHUS42 KMFL 300858
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
458 AM EDT MON MAY 30 2011

...HIGH RISK OF RIP CURRENTS ATLANTIC BEACHES TODAY...

FLZ168-172-173-302200-
/O.NEW.KMFL.CF.S.0013.110530T0900Z-110530T2200Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE-
458 AM EDT MON MAY 30 2011

...HIGH RISK OF RIP CURRENTS ATLANTIC BEACHES TODAY...

EAST TO NORTHEAST WINDS OF 15 KNOTS WITH OCCASIONAL HIGHER GUSTS
HAS LEAD TO A HIGH RISK OF RIP CURRENTS TODAY AT THE BEACHES OF
PALM BEACH, BROWARD AND MIAMI DADE COUNTIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RIP CURRENT IS A 10 TO 30 YARD WIDE CHANNEL OF WATER THAT CAN
PULL EVEN A STRONG SWIMMER FROM NEAR OR INSIDE THE SAND BAR INTO
DEEPER WATER. DUE TO THE LIFE THREATENING DANGERS THAT THESE
STRONG CURRENTS OF WATER POSE...SWIMMING IS NOT ADVISED*.

IF YOU DO GO INTO THE WATERS...SWIM AT GUARDED BEACHES AND HEED
THE ADVICE OF THE BEACH PATROL. IF CAUGHT IN THE SEAWARD PULL OF A
RIP CURRENT DO NOT ATTEMPT TO MOVE DIRECTLY TOWARD SHORE.
INSTEAD...MOVE SIDEWAYS ACROSS THE RIP CURRENT UNTIL THE PULL
EASES.

AN ALTERNATE METHOD OF ESCAPE IS TO LET THE RIP CURRENT PULL YOU
SEAWARD 50 TO 100 YARDS...WHERE THE FORCE WEAKENS...AND THEN SWIM
TOWARD THE BEACH AT AN ANGLE AWAY FROM THE CURRENT.

$$


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
768 
WHUS42 KMFL 301427
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
1027 AM EDT MON MAY 30 2011

...HIGH RISK OF RIP CURRENTS ATLANTIC COAST BEACHES OF SOUTH FLORIDA...

FLZ168-172-173-310000-
/O.CAN.KMFL.CF.S.0013.000000T0000Z-110530T2200Z/
/O.NEW.KMFL.RP.S.0003.110530T1427Z-110531T0000Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE-
1027 AM EDT MON MAY 30 2011

...HIGH RIP CURRENT RISK UNTIL 8 PM EDT THIS EVENING...

EAST TO NORTHEAST WINDS OF 15 TO 20 MPH WITH OCCASIONAL HIGHER
GUSTS WILL CONTINUE TO RESULT IN A HIGH RISK OF RIP CURRENTS
THROUGH EARLY THIS EVENING AT THE BEACHES OF MIAMI DADE, BROWARD,
AND PALM BEACH COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RIP CURRENT IS A 10 TO 30 YARD WIDE CHANNEL OF WATER THAT CAN
PULL EVEN A STRONG SWIMMER FROM NEAR OR INSIDE THE SAND BAR INTO
DEEPER WATER. DUE TO THE LIFE THREATENING DANGERS THAT THESE
STRONG CURRENTS OF WATER POSE...SWIMMING IS NOT ADVISED.

THERE IS A HIGH RISK OF RIP CURRENTS.

&&

$$

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
May 30, 10:27 AM EDTRip Current StatementMFLBroward, Miami-Dade, Palm Beach10 hr

Nearby

Coastal Flood Statements in Florida, 2011Every coastal flood 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.