Alert archive / Florida / Frost Advisories in 2021
Frost Advisory 1, NWS Melbourne, FL
NWS Melbourne, FL issued this frost advisory at Jan 9, 2021, 3:01 AM EST for Lake County, Volusia County, Florida. It took effect at Jan 10, 2021, 4:00 AM EST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jan 9, 2021, 3:01 AM EST (08:01 UTC)
- In effect from
- Jan 10, 2021, 4:00 AM EST
- Expired
- Jan 10, 2021, 8:00 AM EST
- In force
- 4 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 08:01 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, 8.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1160 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
044 WWUS72 KMLB 090801 NPWMLB URGENT - WEATHER MESSAGE National Weather Service Melbourne FL 301 AM EST Sat Jan 9 2021 FLZ041-044-141-101300- /O.NEW.KMLB.FR.Y.0001.210110T0900Z-210110T1300Z/ 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 301 AM EST Sat Jan 9 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EST SUNDAY... * WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...Volusia, and Northern Lake Counties. * WHEN...From 4 AM to 8 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Watson
1 follow-up statement
495 WWUS72 KMLB 091336 NPWMLB URGENT - WEATHER MESSAGE National Weather Service Melbourne FL 836 AM EST Sat Jan 9 2021 FLZ144-101300- /O.EXA.KMLB.FR.Y.0001.210110T0900Z-210110T1300Z/ Southern Lake- Including the cities of Clermont, Mascotte, and Groveland 836 AM EST Sat Jan 9 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EST SUNDAY... * WHAT...Temperatures as low as 34 to 37 degrees will result in frost formation. * WHERE...Southern Lake County. * WHEN...From 4 AM to 8 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ FLZ041-044-141-101300- /O.CON.KMLB.FR.Y.0001.210110T0900Z-210110T1300Z/ 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 836 AM EST Sat Jan 9 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM EST SUNDAY... * WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...Volusia, and Northern Lake Counties. * WHEN...From 4 AM to 8 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Leahy
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 9, 3:07 AM EST | Rip Current Statement | MLB | Volusia | 15 hr |
Nearby
Frost Advisories in Florida, 2021Every frost advisory in 2021
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.