Alert archive / Florida / Lake Wind Advisories in 2017

Lake Wind Advisory 4, NWS Melbourne, FL

March 3, 20176 counties in Florida

NWS Melbourne, FL issued this lake wind advisory at Mar 3, 2017, 3:50 AM EST for 6 counties in Florida. It took effect at Mar 3, 2017, 9:00 AM EST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Mar 3, 2017, 3:50 AM EST (08:50 UTC)
In effect from
Mar 3, 2017, 9:00 AM EST
Expired
Mar 3, 2017, 7:00 PM EST
In force
10 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 08:51 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, 8.8 hours before the alert went out and 73 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 2017-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 2017-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
6 J/kg
Mixed-layer CIN
-142 J/kg
Mixed-layer LCL
743 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

762 
WWUS72 KMLB 030850
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
350 AM EST Fri Mar 3 2017

FLZ041-044>047-053-054-058-059-064-141-144-147-040000-
/O.NEW.KMLB.LW.Y.0004.170303T1400Z-170304T0000Z/
Inland Volusia County-Northern Lake County-Orange-Seminole-
Southern Brevard County-Osceola-Indian River-Okeechobee-St. Lucie-
Martin-Coastal Volusia County-Southern Lake County-
Northern Brevard County-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Apopka, Maitland, Orlando, 
Winter Park, Union Park, Altamonte Springs, Casselberry, Oviedo, 
Sanford, Winter Springs, Melbourne, Palm Bay, Rockledge, 
Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, 
Basinger, Fort Drum, Okeechobee, Port Saint Lucie, Fort Pierce, 
Hobe Sound, Jensen Beach, Port Salerno, Stuart, Daytona Beach, 
New Smyrna Beach, Ormond Beach, Clermont, Mascotte, Groveland, 
Cocoa, and Titusville
350 AM EST Fri Mar 3 2017

...LAKE WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 7 PM
EST THIS EVENING...

The National Weather Service in Melbourne has issued a Lake Wind
Advisory, which is in effect from 9 AM this morning to 7 PM EST
this evening. 

* WINDS...North to Northeast 20 mph with numerous gusts near 30
  mph.

* IMPACTS...Bodies of water will be rough in open areas and
  boating conditions will be hazardous. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Lake Wind Advisory indicates that winds will cause rough chop
on area lakes. Small boats will be especially prone to capsizing.

&&

$$

Kelly

What forecasters said that day

The local office's own words before this lake wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this lake wind advisory went out at Mar 2, 9:48 PM EST, 6 hours 2 minutes earlier.

Area forecast discussion, Mar 2, 9:48 PM EST, 6 hours 2 minutes before
East Central Florida Forecast Discussion
National Weather Service Melbourne FL
948 PM EST Thu Mar 2 2017

.DISCUSSION...

..Hazardous Boating Conditions Through the Weekend...

Tonight-Friday...The front has just about moved through the forecast
area at this time. Breezy north winds surging swd will bring drying
and cooler temps as the post frontal high moves into the region by
early Fri. Showers more prevalent along the coast and northern
sections have largely relocated over the Atlc waters and chcs for
additional measurable rainfall should end by around midnight.

Considerable cloudiness will linger behind the front overnight,
and into Friday especially over the south. Sufficient moisture and
a long fetch of north/northeast winds down the Gulf Stream should
keep small shower chances along the Treasure Coast Friday morning
with a breezy to windy day with onshore tendency, especially along
the coast.

&&

.AVIATION...
Cloudy skies linger with overnight with cigs nr FL 015-025 through
at least 03/11z. some improvement is expected inland north of ISM-
TTS. Breezy north winds with gusts around 20 knots will continue
mainly along the coast. It looks a bit more gusty on Friday, with
north/northeast winds gusting to around 23-25 knots.

&&

.MARINE...
The surge of post frontal north winds around 20 knots has worked
south to around Fort Pierce. This will create hazardous boating
conditions over the waters through midnight and continuing into the
upcoming weekend. Small craft advisories are in effect across the
north two thirds of the coastal waters and will start at 06z in the
southern zones.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...Small Craft Advisory until 4 PM EST Sunday for Flagler Beach to
     Volusia-Brevard County Line 0-20 nm-Flagler Beach to
     Volusia-Brevard County Line 20-60 nm-Volusia-Brevard County
     Line to Sebastian Inlet 0-20 nm-Volusia-Brevard County Line
     to Sebastian Inlet 20-60 nm.

     Small Craft Advisory from 1 AM Friday to 4 PM EST Sunday for
     Sebastian Inlet to Jupiter Inlet 0-20 nm-Sebastian Inlet to
     Jupiter Inlet 20-60 nm.

&&

JP/DKW
Hazardous weather outlook, Mar 2, 5:42 PM EST, 10 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
542 PM EST Thu Mar 2 2017

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-031030-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County-
Northern Lake County-Orange-Seminole-Southern Brevard County-
Osceola-Indian River-Okeechobee-St. Lucie-Martin-
Coastal Volusia County-Southern Lake County-
Northern Brevard County-
542 PM EST Thu Mar 2 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TONIGHT.

.WIND AND SEA IMPACT...
A surge of north winds around 20 knots will continue to build
southward over the waters into tonight, behind a cold front that
is crossing the area this evening. Seas will build to 5 to 7 feet
nearshore and up to 9 feet offshore and in the Gulf Stream by
sunrise Friday. A Small Craft Advisory is currently in effect for
the waters north of Sebastian Inlet this evening and will expand
southward to cover the waters of the Treasure Coast past
midnight.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
Hazardous boating conditions for small craft will continue this
weekend and into early next week. Rough surf and dangerous rip
currents are also expected along the beaches of east central
Florida.

.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.

Weitlich

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 3, 4:04 AM ESTBeach Hazards StatementMLBVolusia15 hr
Mar 3, 4:14 AM ESTRed Flag WarningMLBLake14 hr

Nearby

Lake Wind Advisories in Florida, 2017Every lake wind advisory 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.