Alert archive / Florida / Rip Current Statements in 2019

Rip Current Statement 54, NWS Melbourne, FL

December 28, 2019Volusia County, Florida

NWS Melbourne, FL issued this rip current statement at Dec 28, 2019, 5:05 AM EST for Volusia County, Florida. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Dec 28, 2019, 5:05 AM EST (10:05 UTC)
Expired: Dec 28, 2019, 7:00 PM EST
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 10:04 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, 10.1 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: 104 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 657 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

801 
WHUS42 KMLB 281005
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
505 AM EST Sat Dec 28 2019

FLZ047-054-059-064-141-147-281815-
/O.NEW.KMLB.RP.S.0054.191228T1005Z-191229T0000Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
505 AM EST Sat Dec 28 2019

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

* WHAT...Dangerous rip currents.

* WHERE...Southern Brevard, Indian River, St. Lucie, Martin, 
  Coastal Volusia and Northern Brevard Counties.

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...The threat will be greatest between 1230 PM
  and 630 PM due to tidal effects. Entering the surf is not 
  recommended.

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.

Issued	Product	Office	Counties	Lasted
Dec 28, 3:20 AM EST	Areal Flood Advisory	MLB	Martin	3 hr
Dec 28, 4:24 AM EST	Small Craft Advisory	MLB		6 hr
Dec 28, 6:13 AM EST	Areal Flood Advisory	MLB	Martin, Saint Lucie	92 min
Dec 28, 6:45 PM EST	Areal Flood Advisory	MLB	Martin	3 hr

Nearby

Rip Current Statements in Florida, 2019 Every rip current statement in 2019

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.