Alert archive / Florida / Beach Hazards Statements in 2017

Beach Hazards Statement 20, NWS Melbourne, FL

December 29, 2017Volusia County, Florida

NWS Melbourne, FL issued this beach hazards statement at Dec 29, 2017, 4:48 AM EST for Volusia County, Florida. It took effect at Dec 29, 2017, 7:00 AM EST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Dec 29, 2017, 4:48 AM EST (09:48 UTC)
In effect from
Dec 29, 2017, 7:00 AM EST
Expired
Dec 29, 2017, 6:00 PM EST
In force
11 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 09:49 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, 9.8 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 2017-12-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 2017-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.19395878Sfc1 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
7 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
771 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

561 
WHUS42 KMLB 290948
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
448 AM EST Fri Dec 29 2017

FLZ047-054-059-064-141-147-292300-
/O.NEW.KMLB.BH.S.0020.171229T1200Z-171229T2300Z/
Southern Brevard County-Indian River-St. Lucie-Martin-
Coastal Volusia County-Northern Brevard County-
448 AM EST Fri Dec 29 2017

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

The National Weather Service in Melbourne has issued a Beach
Hazards Statement for rough surf, which is in effect through this
afternoon. 

* HAZARDS...Breezy north winds will produce increasingly rough
  surf and a southward flowing current along the beaches today. 

* POTENTIAL IMPACTS...Rough surf and a southward flowing current
  near the shore will create hazardous conditions in the surf
  zone. Strong rip currents will also occur near piers, jetties,
  and reefs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A beach hazards statement is issued when threats such as rough
surf and longshore currents create life-threatening conditions in
the surf zone. 

Longshore currents commonly occur when waves approach the
shoreline at an angle. They often produce rip currents near
jetties, piers, and reefs. Longshore currents can knock you off a
sandbard and into deeper water. The best safety advice is to only
enter the chilly surf near lifeguard. 

&&

$$

Ulrich

Nearby

Beach Hazards Statements in Florida, 2017Every beach hazards statement in 2017

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.