Alert archive / Florida / Beach Hazards Statements in 2020

Beach Hazards Statement 40, NWS Melbourne, FL

November 23, 2020Volusia County, Florida

NWS Melbourne, FL issued this beach hazards statement at Nov 23, 2020, 3:30 AM EST for Volusia County, Florida. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Nov 23, 2020, 3:30 AM EST (08:30 UTC)
Expired
Nov 23, 2020, 6:00 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 08:32 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, 8.5 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 2020-11-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 487 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 2020-11-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
487 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

271 
WHUS42 KMLB 230830
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
330 AM EST Mon Nov 23 2020

FLZ047-054-059-064-141-147-232300-
/O.NEW.KMLB.BH.S.0040.201123T0830Z-201123T2300Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
330 AM EST Mon Nov 23 2020

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

* WHAT...Strong southward flowing longshore current and a Moderate
  Risk for rip currents.

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

* WHEN...Through this evening.

* IMPACTS...A strong southward flowing longshore current will
  exist today at area beaches, which can knock swimmers off the
  sandbar into deeper water and make them more susceptible to rip
  currents.

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.

&&

$$
1 follow-up statement
698 
WHUS42 KMLB 230844 AAA
CFWMLB

Coastal Hazard Message...UPDATED
National Weather Service Melbourne FL
344 AM EST Mon Nov 23 2020

FLZ047-054-059-064-141-147-232300-
/O.CON.KMLB.BH.S.0040.000000T0000Z-201123T2300Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
344 AM EST Mon Nov 23 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
AFTERNOON...

* WHAT...Strong southward flowing longshore current, breaking
  waves up to 5 to 6 feet, and a Moderate Risk for rip currents.

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

* WHEN...Through this evening.

* IMPACTS...A strong southward flowing longshore current will
  exist today at area beaches, which can knock swimmers off the
  sandbar into deeper water and make them more susceptible to rip
  currents. Rough surf is also expected. Large waves can knock 
  you down and make you more susceptible to being caught in a rip 
  current.

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.

&&

$$

CL

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 23, 3:55 AM ESTSmall Craft AdvisoryMLB48 hr

Nearby

Beach Hazards Statements in Florida, 2020Every beach hazards statement in 2020

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.