Alert archive / Florida / Rip Current Statements in 2017

Rip Current Statement 23, NWS Melbourne, FL

August 1, 2017Volusia County, Florida

NWS Melbourne, FL issued this rip current statement at Aug 1, 2017, 4:26 AM EDT for Volusia County, Florida. It took effect at Aug 1, 2017, 8:00 AM EDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Aug 1, 2017, 4:26 AM EDT (08:26 UTC)
In effect from
Aug 1, 2017, 8:00 AM EDT
Expired
Aug 1, 2017, 7:00 PM EDT
In force
11 hr
Issued by
NWS Melbourne, FL

County Volusia County, FL

The radar

The Melbourne radar (KMLB), 116 km from the middle of the area, began a volume at 08:30 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.4 hours before the alert went out and 91 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, Cape Canaveral, FL at 00:00Z on 2017-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 441 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, Cape Canaveral, FL at 00:00Z on 2017-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
441 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
727 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

As transmitted.

955 
WHUS42 KMLB 010826
CFWMLB

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
426 AM EDT TUE AUG 1 2017

FLZ047-054-059-064-141-147-012300-
/O.NEW.KMLB.RP.S.0023.170801T1200Z-170801T2300Z/
SOUTHERN BREVARD COUNTY-INDIAN RIVER-ST. LUCIE-MARTIN-
COASTAL VOLUSIA COUNTY-NORTHERN BREVARD COUNTY-
426 AM EDT TUE AUG 1 2017

...HIGH RIP CURRENT RISK IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A HIGH RIP
CURRENT RISK, WHICH IS IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING. 

* IMPACTS...ROUGH BREAKING WAVES WILL EXIST IN THE SURF ZONE ALONG
  WITH LIFE THREATENING RIP CURRENTS.

* TIMING...UNTIL AROUND SUNSET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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...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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 8:57 PM EDTTornado WarningMLBMartin33 min
Jul 31, 9:34 PM EDTTornado WarningMLBMartin, Saint Lucie26 min
Aug 1, 6:42 PM EDTSpecial Weather StatementMLBVolusia48 min
Aug 1, 7:26 PM EDTSpecial Weather StatementMLBVolusia64 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.