Alert archive / Florida / Lake Wind Advisories in 2020

Lake Wind Advisory 8, NWS Melbourne, FL

January 22, 20206 counties in Florida

NWS Melbourne, FL issued this lake wind advisory at Jan 22, 2020, 3:31 AM EST for 6 counties in Florida. It took effect at Jan 22, 2020, 6:00 AM EST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Jan 22, 2020, 3:31 AM EST (08:31 UTC)
In effect from
Jan 22, 2020, 6:00 AM EST
Expired
Jan 22, 2020, 7:00 PM EST
In force
13 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 08:34 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 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 2020-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2020-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -92 square meters per square second.1939587897117136Sfc1 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
1014 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
-92 m²/s²
0-3 km storm-relative helicity
295 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jan 21, 8:22 PM EST, 7 hours 9 minutes earlier.

Area forecast discussion, Jan 21, 8:22 PM EST, 7 hours 9 minutes before
Area Forecast Discussion
National Weather Service Melbourne FL
822 PM EST Tue Jan 21 2020

.UPDATE...

...Coldest Night of the Season with Freezing Temperatures Across
Lake and inland Volusia Counties and Frigid Wind Chills Tonight...
...Very Hazardous Boating and Beach Conditions to Continue Through
Wednesday...

.UPDATE...Potent mid level shortwave trough will swing southeast
from the southeast Atlantic coast and induce low pressure
development offshore from east central Florida overnight. A
tightening pressure gradient is forecast on the back side of the low
which will bring windy conditions to the coast and usher in a fetch
of colder air into central Florida through the late night hours.
Forecast updates include transitioning the Beach Hazards Statement
to High Surf Advisory and also raised a Wind Advisory for coastal
areas through 10 am Wednesday morning. The tight pressure gradient
across the Atlantic will support winds along the immediate coast to
20-25 mph with gusts to 35 to 40 mph along the beaches tonight. A
Freeze Warning continues for Lake and interior Volusia county. Low
temps will range from near freezing for inland Volusia and Lake
counties to mid 30s for metro Orlando and lower 40s from the Cape
south along the coast. Wind chills will drop into the 20s for the
interior and Volusia county and in the lower 30s from Melbourne
south along the coast. A Wind Chill Advisory is in effect for all of
east central FL tonight.

&&

.AVIATION...
Mainly VFR. Winds will continue strong for cstl terminals overnight
with sustained winds 16-20 knots with gusts to 25-30 knots. Breezy
conditions will continue into Wednesday with marine stratocu and
isolated to scattered onshore moving showers potentially producing
MVFR conditions, mainly along coastal TAF sites tomorrow afternoon.

&&

.MARINE...
Extremely hazardous marine conditions expected tonight into
Wednesday with NNW winds currently at Buoy 41009 at 31 knots gusting
to 41 knots with 10-12 ft seas. The pressure gradient is forecast to
tighten further late tonight with winds increasing near 35 knots
with gusts to 45 knots. A Gale Warning continues in effect. Small
craft operators should not venture into these hazardous wind and sea
conditions.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  37  61  52  71 /  10  20  20  20
MCO  35  61  51  73 /   0  10  20  10
MLB  41  64  56  72 /  10  40  20  20
VRB  42  65  57  73 /  10  40  20  20
LEE  31  59  47  71 /   0   0  10  10
SFB  35  60  51  73 /  10  20  20  20
ORL  35  61  51  72 /   0  10  20  20
FPR  42  66  54  73 /  10  40  20  20

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...Wind Chill Advisory until 9 AM EST Wednesday for Coastal
Volusia-     Indian River-Inland Volusia-Martin-Northern Brevard-
Northern Lake-Okeechobee-Orange-Osceola-Seminole-Southern Brevard-
Southern Lake-St. Lucie.

     High Surf Advisory until 7 PM EST Thursday for Coastal Volusia-
     Indian River-Martin-Northern Brevard-Southern Brevard-St.
     Lucie.

     Wind Advisory until 10 AM EST Wednesday for Coastal Volusia-
     Indian River-Martin-Northern Brevard-Southern Brevard-St.
     Lucie.

     Freeze Warning from 1 AM to 8 AM EST Wednesday for Inland
     Volusia-Northern Lake-Southern Lake.

AM...Gale Warning until 4 PM EST Wednesday for Flagler Beach to
     Volusia-Brevard County Line 0-20 nm-Flagler Beach to
     Volusia-Brevard County Line 20-60 nm-Sebastian Inlet to
     Jupiter Inlet 0-20 nm-Sebastian Inlet to Jupiter Inlet 20-
     60 nm-Volusia-Brevard County Line to Sebastian Inlet 0-20
     nm-Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.

&&

Volkmer/Sedlock
Hazardous weather outlook, Jan 21, 7:35 PM EST, 7 hours 56 minutes before
Hazardous Weather Outlook...Updated
National Weather Service Melbourne FL
735 PM EST Tue Jan 21 2020

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-221100-
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-
Northern Lake-Orange-Seminole-Southern Brevard-Osceola-
Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia-
Southern Lake-Northern Brevard-
735 PM EST Tue Jan 21 2020

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TONIGHT.

.HIGH WIND IMPACT...
Northwest to North winds of 20 to 25 mph with frequent gusts to 35
to 40 mph are expected tonight along the barrier islands and coastal
areas of east central Florida. A Wind Advisory is in effect tonight
for these areas.

.EXCESSIVE COLD IMPACT...
Temperatures across Lake and interior Volusia counties could drop to
near 30 degrees overnight, and a Freeze Warning has been issued for
these areas. Normally colder, wind-sheltered areas across the
interior may also fall to near freezing overnight. In addition, the
combination of cold temperatures with northerly winds of 15 to 20
mph across the interior and 20 to 25 mph along the coast, with
higher gusts, will produce wind chill readings between 21 and 34
degrees from late this evening continuing through 9 AM Wednesday
morning across all of east central Florida. The coldest wind chill
readings will be inland from the coast. If you will be outdoors
during that time, be sure to dress appropriately for the cold
weather.

.WIND AND SEA IMPACT...
Expect north-northwest winds 25 to 30 knots with frequent gusts up
to 40 to 45 knots tonight. These winds will allow seas to gradually
build to 10 to 16 feet through late tonight. A Gale Warning is in
effect for all marine legs.

.COASTAL FLOOD IMPACT...
A High Surf Advisory is in effect, as open Atlantic sea heights
gradually build to around 16 feet and produce large breaking waves
of 7 to 9 feet in the surf zone and with wave runup to the dunes at
some beaches very late overnight. Minor erosion can be expected near
the early Wednesday morning and again during Wednesday evening high
tides. The next high tide cycles along the east central Florida
coast will be from 550 AM to 620 AM Wednesday morning and again 600
PM to 630 PM Wednesday evening.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
Boating and beach conditions will stay dangerous for most of the
week and into the weekend. Venturing into the surf is not
recommended on Wednesday.

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

Sedlock

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 7:02 PM ESTWind AdvisoryMLBVolusia24 hr
Jan 21, 7:14 PM ESTHigh Surf AdvisoryMLBVolusia63 hr
Jan 22, 3:29 AM ESTRip Current StatementMLBVolusia16 hr
Jan 22, 3:50 AM ESTSmall Craft AdvisoryMLB4 days

Nearby

Lake Wind Advisories in Florida, 2020Every lake wind advisory 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.