Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 31, NWS Melbourne, FL

September 30, 2018Volusia County, Florida

NWS Melbourne, FL issued this rip current statement at Sep 30, 2018, 3:53 AM EDT for Volusia County, Florida. It took effect at Sep 30, 2018, 6:00 AM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Sep 30, 2018, 3:53 AM EDT (07:53 UTC)
In effect from: Sep 30, 2018, 6:00 AM EDT
Expired: Sep 30, 2018, 8:00 PM EDT
In force: 14 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 07:52 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 7.9 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: 1892 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 7 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

676 
WHUS42 KMLB 300753
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
353 AM EDT Sun Sep 30 2018

FLZ047-054-059-064-141-147-010000-
/O.NEW.KMLB.RP.S.0031.180930T1000Z-181001T0000Z/
Southern Brevard County-Indian River-St. Lucie-Martin-
Coastal Volusia County-Northern Brevard County-
353 AM EDT Sun Sep 30 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...Strong rip currents will be possible all day but will
  be maximized near the time of low tide early this morning and in
  the late afternoon to early evening. 

* IMPACTS...Long period swells from Tropical Storm Leslie will
  reach the east central Florida beaches today and continue into
  most of the work week. The long period swells will contribute 
  to a high risk of rip currents with strong and dangerous rip 
  currents likely at east central Florida beaches. Rip currents 
  can be life- threatening. 


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.

&&

$$

KN

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.