Alert archive / Florida / Beach Hazards Statements in 2021

Beach Hazards Statement 12, NWS Melbourne, FL

March 20, 2021Volusia County, Florida

NWS Melbourne, FL issued this beach hazards statement at Mar 20, 2021, 4:40 AM EDT for Volusia County, Florida. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Mar 20, 2021, 4:40 AM EDT (08:40 UTC)
Expired
Mar 20, 2021, 8:00 PM EDT
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 08:40 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, 8.7 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 2021-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

756 
WHUS42 KMLB 200840
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
440 AM EDT Sat Mar 20 2021

FLZ141-210000-
/O.NEW.KMLB.SU.Y.0002.210320T0840Z-210321T0800Z/
/O.NEW.KMLB.BH.S.0012.210320T0840Z-210321T0000Z/
Coastal Volusia-
440 AM EDT Sat Mar 20 2021

...HIGH SURF ADVISORY IN EFFECT UNTIL 4 AM EDT SUNDAY...
...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING...

* WHAT...Rough surf with breaking waves of 6 to 7 feet.

* WHERE...Coastal Volusia County.

* WHEN...For the High Surf Advisory, until 4 AM EDT Sunday. For 
  the Beach Hazards Statement, through this evening.

* IMPACTS...Minor beach erosion around the time of high tide this
  afternoon. Large breaking waves can knock you off your feet and
  make you even more susceptible to becoming caught in the 
  seaward pull of a rip current.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

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.

&&

$$

FLZ047-147-210000-
/O.NEW.KMLB.BH.S.0012.210320T0840Z-210321T0000Z/
Southern Brevard-Northern Brevard-
440 AM EDT Sat Mar 20 2021

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING...

* WHAT...A southward flowing longshore current and a Moderate risk
  of life threatening rip currents. 

* WHERE...Brevard county.

* WHEN...Through this evening.

* IMPACTS...Dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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
Mar 20, 4:40 AM EDTHigh Surf AdvisoryMLBVolusia23 hr
Mar 20, 6:07 PM EDTGale WarningMLB4 hr
Mar 20, 6:07 PM EDTSmall Craft AdvisoryMLB70 hr
Mar 20, 6:09 PM EDTWind AdvisoryMLBVolusia5 hr

Nearby

Beach Hazards Statements in Florida, 2021Every beach hazards statement in 2021

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.