Alert archive / Florida / Rip Current Statements in 2017

Rip Current Statement 23, NWS Miami, FL

July 13, 2017Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this rip current statement at Jul 13, 2017, 7:51 AM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It took effect at Jul 13, 2017, 8:00 AM EDT. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Jul 13, 2017, 7:51 AM EDT (11:51 UTC)
In effect from
Jul 13, 2017, 8:00 AM EDT
Expired
Jul 14, 2017, 3:41 AM EDT
In force
20 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 11:52 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

Key West, FL (KEYW), launched 00:00Z, 11.9 hours before the alert went out and 216 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, Key West, FL at 00:00Z on 2017-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3045 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, Key West, FL at 00:00Z on 2017-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
3045 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
722 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

032 
WHUS42 KMFL 131151
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
751 AM EDT THU JUL 13 2017

FLZ168-172-173-150000-
/O.NEW.KMFL.RP.S.0023.170713T1200Z-170715T0000Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI-DADE-
751 AM EDT THU JUL 13 2017

...HIGH RIP CURRENT RISK IN EFFECT THROUGH FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A HIGH RIP
CURRENT RISK, WHICH IS IN EFFECT THROUGH FRIDAY EVENING. 

* TIMING...THROUGH FRIDAY EVENING.

* IMPACTS...STRONG AND DANGEROUS RIP CURRENTS ARE FORECAST ALONG 
  THE ATLANTIC BEACHES OF SOUTH FLORIDA, WHICH WILL BE HAZARDOUS 
  FOR THOSE IN THE SURF ZONE. 

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
171 
WHUS42 KMFL 140741
CFWMFL

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
341 AM EDT FRI JUL 14 2017

FLZ168-172-173-140845-
/O.CAN.KMFL.RP.S.0023.000000T0000Z-170715T0000Z/
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI-DADE-
341 AM EDT FRI JUL 14 2017

...HIGH RIP CURRENT RISK IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE HIGH RIP
CURRENT RISK. HOWEVER, A MODERATE RISK OF RIP CURRENTS WILL
CONTINUE FOR THE ATLANTIC BEACHES TODAY.

$$


HTTP://WWW.WEATHER.GOV/MIAMI

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 8:06 PM EDTSpecial Weather StatementMFLMiami-Dade24 min
Jul 12, 8:55 PM EDTAreal Flood AdvisoryMFLMiami-Dade4 hr
Jul 12, 9:08 PM EDTSpecial Marine WarningMFL37 min
Jul 12, 10:35 PM EDTSpecial Marine WarningMFL55 min
Jul 13, 8:13 AM EDTAreal Flood AdvisoryMFLMiami-Dade62 min

Nearby

Rip Current Statements in Florida, 2017Every rip current statement in 2017

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.