Alert archive / Florida / Frost Advisories in 2022

Frost Advisory 3, NWS Melbourne, FL

January 30, 2022Lake County, Volusia County, Florida

NWS Melbourne, FL issued this frost advisory at Jan 30, 2022, 1:58 PM EST for Lake County, Volusia County, Florida. It took effect at Jan 31, 2022, 1:00 AM EST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jan 30, 2022, 1:58 PM EST (18:58 UTC)
In effect from
Jan 31, 2022, 1:00 AM EST
Expired
Jan 31, 2022, 8:00 AM EST
In force
7 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 117 km from the middle of the area, began a volume at 19:00 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 12:00Z, 7.0 hours before the alert went out and 103 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 2022-01-30Temperature 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°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 2022-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1617 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

020 
WWUS72 KMLB 301858
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
158 PM EST Sun Jan 30 2022

FLZ047-053-054-058-059-311300-
/O.CON.KMLB.FZ.W.0003.220131T0600Z-220131T1300Z/
Southern Brevard-Osceola-Indian River-Okeechobee-St. Lucie-
Including the cities of Melbourne, Palm Bay, Rockledge, 
Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, 
Basinger, Fort Drum, Okeechobee, Port Saint Lucie, 
and Fort Pierce
158 PM EST Sun Jan 30 2022

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM EST
MONDAY...

* WHAT...For the Freeze Warning sub-freezing temperatures as low 
  as 28 degrees. There will also be widespread frost formation, 
  mainly inland from Interstate 95.

* WHERE...Southern Brevard, Indian River and St. Lucie Counties.

* WHEN...From 1 AM to 8 AM EST Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. Small
animals not normally conditioned to the cold temperatures should
be adequately cared for or brought indoors.

&&

$$

FLZ041-044-141-311300-
/O.NEW.KMLB.FR.Y.0003.220131T0600Z-220131T1300Z/
Inland Volusia-Northern Lake-Coastal Volusia-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Daytona Beach, New Smyrna Beach, 
and Ormond Beach
158 PM EST Sun Jan 30 2022

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EST MONDAY...

* WHAT...Temperatures as low as 33 degrees and near calm wind 
  will result in widespread frost formation.

* WHERE...Inland Volusia, Northern Lake and Coastal Volusia 
  Counties.

* WHEN...From 1 AM to 8 AM EST Monday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
1 follow-up statement
929 
WWUS72 KMLB 302311
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
611 PM EST Sun Jan 30 2022

FLZ047-053-054-058-059-311300-
/O.CON.KMLB.FZ.W.0003.220131T0600Z-220131T1300Z/
Southern Brevard-Osceola-Indian River-Okeechobee-St. Lucie-
Including the cities of Melbourne, Palm Bay, Rockledge, 
Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, 
Basinger, Fort Drum, Okeechobee, Port Saint Lucie, 
and Fort Pierce
611 PM EST Sun Jan 30 2022

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM EST
MONDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected. 
  Widespread frost is expected, mainly west of Interstate 95.

* WHERE...Southern Brevard, St. Lucie, Okeechobee, Osceola and 
  Indian River Counties. 

* WHEN...From 1 AM to 8 AM EST Monday.

* IMPACTS...Freezing temperatures will hurt sensitive persons 
  and outdoor pets. Frost and freeze conditions will kill crops 
  other sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$

FLZ064-147-311300-
/O.EXA.KMLB.FR.Y.0003.220131T0600Z-220131T1300Z/
Martin-Northern Brevard-
Including the cities of Hobe Sound, Jensen Beach, Port Salerno, 
Stuart, Cocoa, and Titusville
611 PM EST Sun Jan 30 2022

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EST MONDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Martin and Northern Brevard Counties, especially west of
  Interstate 95. 

* WHEN...From 1 AM to 8 AM EST Monday.

* IMPACTS...Widespread frost could kill sensitive outdoor plants 
  and crops if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants and crops from frost.

&&

$$

FLZ041-044-141-311300-
/O.CON.KMLB.FR.Y.0003.220131T0600Z-220131T1300Z/
Inland Volusia-Northern Lake-Coastal Volusia-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Daytona Beach, New Smyrna Beach, 
and Ormond Beach
611 PM EST Sun Jan 30 2022

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EST
MONDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Coastal Volusia, Inland Volusia and Northern Lake 
  Counties.

* WHEN...From 1 AM to 8 AM EST Monday.

* IMPACTS...Widespread frost could kill sensitive outdoor plants 
  and crops if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants and crops from frost.

&&

$$

What forecasters said that day

The local office's own words before this frost 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 frost advisory went out at Jan 30, 8:59 AM EST, 4 hours 59 minutes earlier.

Area forecast discussion, Jan 30, 8:59 AM EST, 4 hours 59 minutes before
East Central Florida Forecast Discussion
National Weather Service Melbourne FL
859 AM EST Sun Jan 30 2022

.DISCUSSION...

Current...Sfc analysis at this hour shows high pressure from N FL
across the NE gulf. The freeze and wind chill products expire at 9
AM.

from prev disc...

Today...High pressure will remain in proximity to the region today,
with its center settling over the southern third of the peninsula
overnight. Despite full sun it will remain cool this aftn with max
temps in the U50s (~60F SE) and very low humidity. In fact, some
guidance shows dew points dropping into the single digits this
afternoon as arid air just above the surface mixes down. NW winds
will remain 10 mph or less.

Tonight...Expected orientation of high pressure wl bring conds
favorable for radiation freeze across the interior south, with
widespread frost extending from there into rural areas west of I-95
from greater Melbourne-Palm Bay southward. In coord with adjacent
offices, a Freeze Warning for Okeechobee and (rural southern)Osceola
Counties is in effect tonight with a Frost Advisory for adjacent
portions from southern Brevard through Martin Cos. Widespread mins
in the L-M30s, a little warmer again toward the coast and colder
(around 30F to perhaps U20s) for the interior south.

&&

.AVIATION...VFR/SKC.

&&

.MARINE...
Today-tonight...NW winds wl diminish further today, and the advisory
well offshore the central FL coast wl be allowed to expire at 10AM.

Monday...Conditions further improve Monday with winds below 10 kt
out of the W/NW north of the Cape and N/NE to the south. Seas 2-3 ft
nearshore and 3-4 ft offshore.

&&

.FIRE WEATHER...
Today...Very low (mid teens to L20s) RH values expected for a long
duration from mid morning through sunset. However, winds will be
much lower (5-10kt and decreasing late) today, which will keep
overall fire weather danger Moderate, given current fuel moisture.

Monday...Winds will be light, but with the continued presence of dry
air, min RH is forecast to reach the upper 20s to low 30s in the
afternoon across the interior from Orlando southward.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  57  35  66  45 /   0   0   0   0
MCO  58  37  68  46 /   0   0   0   0
MLB  58  36  66  48 /   0   0   0   0
VRB  60  35  67  47 /   0   0   0   0
LEE  57  37  68  46 /   0   0   0   0
SFB  57  37  68  45 /   0   0   0   0
ORL  58  38  69  48 /   0   0   0   0
FPR  59  34  66  46 /   0   0   0   0

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...Frost Advisory from 11 PM this evening to 8 AM EST Monday for
     Indian River-Martin-Southern Brevard-St. Lucie.

     Freeze Warning from 11 PM this evening to 8 AM EST Monday for
     Okeechobee-Osceola.

AM...Small Craft Advisory until 10 AM EST this morning for Flagler
     Beach to Volusia-Brevard County Line 20-60 nm-Sebastian
     Inlet to Jupiter Inlet 20-60 nm-Volusia-Brevard County Line
     to Sebastian Inlet 20-60 nm.

&&

JP/RH/KF
Hazardous weather outlook, Jan 30, 9:14 AM EST, 4 hours 44 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
914 AM EST Sun Jan 30 2022

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-302200-
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-
914 AM EST Sun Jan 30 2022

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.EXCESSIVE COLD IMPACT...
Another cold night is ahead for east central Florida as winds
become light to calm after sunset. This will allow for widespread
low temperatures in the low to mid 30s. The coldest temperatures
are expected across rural southern Osceola and Okeechobee Counties
where readings will drop to around 29 or 30 degrees. Widespread
frost is expected across these two counties, as well as adjacent
sections of southern Brevard, Indian River, Saint Lucie and
Martin Counties, west of Interstate 95. To the north, areas of
frost are forecast, but are not expected to become widespread.

A Freeze Warning has been issued tonight in Osceola and Okeechobee
Counties, and a Frost Advisory is in effect for southern Brevard,
Indian River, Saint Lucie and Martin Counties.

.RIP CURRENT IMPACT...
A Moderate risk of rip currents continues at the central FLorida
Atlantic beaches. In addition to dangerous rip currents, surf
temperatures remain quite chilly, in the lower to middle 60s. If
you decide to enter the chilly surf, do so only within sight of a
lifeguard. Never enter the ocean alone.

.WIND AND SEA IMPACT...
Seas and swell will subside to 4 to 5 feet by tonight. Small
craft should exercise caution for choppy seas within and near the
gulf stream into tonight.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
The threat for rip currents will remain Moderate through at least
mid week. Boating conditions will become occasionally poor well
offshore from Tuesday through Thursday.

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

Pendergrast

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 7:10 PM ESTSmall Craft AdvisoryMLB8 hr
Jan 30, 2:46 AM ESTFrost AdvisoryMLB11 hr
Jan 30, 2:46 AM ESTFreeze WarningMLBOkeechobee, Osceola29 hr

Nearby

Frost Advisories in Florida, 2022Every frost advisory in 2022

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.