Alert archive / Florida / Beach Hazards Statements in 2021

Beach Hazards Statement 16, NWS Melbourne, FL

May 9, 2021Volusia County, Florida

NWS Melbourne, FL issued this beach hazards statement at May 9, 2021, 3:06 AM EDT for Volusia County, Florida. It took effect at May 9, 2021, 8:00 AM EDT. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
May 9, 2021, 3:06 AM EDT (07:06 UTC)
In effect from
May 9, 2021, 8:00 AM EDT
Expired
May 10, 2021, 8:00 PM EDT
In force
36 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 07:09 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, 7.1 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-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 2021-05-09Temperature 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 2021-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1840 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

092 
WHUS42 KMLB 090706
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
306 AM EDT Sun May 9 2021

FLZ047-054-059-064-141-147-100700-
/O.NEW.KMLB.BH.S.0016.210509T1200Z-210510T0800Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
306 AM EDT Sun May 9 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH LATE TONIGHT...

* WHAT...Breezy Southeast winds will produce a strong northward
  flowing longshore current.

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

* WHEN...From 8 AM EDT this morning through late tonight.

* IMPACTS...The longshore current can knock swimmers off the
  sandbar into deeper water and make them more susceptible to
  dangerous 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
128 
WHUS42 KMLB 100748 AAA
CFWMLB

Coastal Hazard Message...UPDATED
National Weather Service Melbourne FL
348 AM EDT Mon May 10 2021

FLZ047-054-059-064-141-147-110000-
/O.EXT.KMLB.BH.S.0016.000000T0000Z-210511T0000Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
348 AM EDT Mon May 10 2021

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

* WHAT...Breezy Southerly winds will produce a strong northward 
  flowing longshore current.

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

* WHEN...Through this evening.

* IMPACTS...The longshore current can knock swimmers off the 
  sandbar into deeper water and make them more susceptible to 
  dangerous 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 3:57 AM EDTSmall Craft AdvisoryMLB18 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.