Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 40, NWS Melbourne, FL

November 25, 2018Volusia County, Florida

NWS Melbourne, FL issued this rip current statement at Nov 25, 2018, 3:36 AM EST for Volusia County, Florida. It took effect at Nov 25, 2018, 4:00 AM EST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Nov 25, 2018, 3:36 AM EST (08:36 UTC)
In effect from: Nov 25, 2018, 4:00 AM EST
Expired: Nov 25, 2018, 7:00 PM EST
In force: 15 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 08:39 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, 8.6 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 299 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1202 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

041 
WHUS42 KMLB 250836
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
336 AM EST Sun Nov 25 2018

...PERSISTENT LONG PERIOD SWELLS WILL MAINTAIN A HIGH RISK OF
DANGEROUS RIP CURRENTS TODAY...

FLZ047-054-059-064-141-147-260000-
/O.NEW.KMLB.RP.S.0040.181125T0900Z-181126T0000Z/
Southern Brevard County-Indian River-St. Lucie-Martin-
Coastal Volusia County-Northern Brevard County-
336 AM EST Sun Nov 25 2018

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

The National Weather Service in Melbourne has issued a High Rip
Current Risk, which is in effect through this evening. 

* TIMING...The threat for rip currents will be present all day,
  but will be especially high during the outgoing tide from 12
  noon through sunset. 

* IMPACTS...Life threatening rip currents are likely today. 
  Always swim near a lifeguard, and never swim alone!

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...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.

Issued	Product	Office	Counties	Lasted
Nov 25, 2:28 AM EST	Dense Fog Advisory	MLB	Lake, Okeechobee, Orange, Osceola, Seminole, Volusia	7 hr

Nearby

Rip Current Statements in Florida, 2018 Every 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.