Alert archive / Florida / Wind Advisories in 2019

Wind Advisory 4, NWS Melbourne, FL

December 11, 2019Volusia County, Florida

NWS Melbourne, FL issued this wind advisory at Dec 11, 2019, 3:29 PM EST for Volusia County, Florida. It took effect at Dec 11, 2019, 4:00 PM EST. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Dec 11, 2019, 3:29 PM EST (20:29 UTC)
In effect from
Dec 11, 2019, 4:00 PM EST
Expired
Dec 12, 2019, 3:00 PM EST
In force
23 hr
Issued by
NWS Melbourne, FL

County Volusia County, FL

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 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 12:00Z on 2019-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 840 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2019-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
840 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
469 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

593 
WWUS72 KMLB 112029
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
329 PM EST Wed Dec 11 2019

FLZ141-147-122000-
/O.NEW.KMLB.WI.Y.0004.191211T2100Z-191212T2000Z/
Coastal Volusia-Northern Brevard-
Including the cities of Daytona Beach, New Smyrna Beach, 
Ormond Beach, Cocoa, and Titusville
329 PM EST Wed Dec 11 2019

...WIND ADVISORY IN EFFECT UNTIL 3 PM EST THURSDAY...

* WHAT...North-northeast winds 20 to 25 mph expected, and gusts up
  to 30 to 35 mph.

* WHERE...Barrier islands in Volusia and Northern Brevard 
  Counties.

* WHEN...Until 3 PM EST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle on the causeways. Secure trash cans, lawn 
furniture, and other loose outdoor objects that can be easily 
blown around by strong winds.

&&

$$

Bragaw/Rodriguez

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 11, 3:26 AM ESTHigh Surf AdvisoryMLBVolusia55 hr
Dec 11, 5:38 AM ESTDense Fog AdvisoryMLBOkeechobee, Osceola4 hr

Nearby

Wind Advisories in Florida, 2019Every wind advisory 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.