Alert archive / Florida / Frost Advisories in 2021
Frost Advisory 4, NWS Melbourne, FL
NWS Melbourne, FL issued this frost advisory at Feb 3, 2021, 2:17 PM EST for Okeechobee County, Osceola County, Florida. It took effect at Feb 4, 2021, 4:00 AM EST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Feb 3, 2021, 2:17 PM EST (19:17 UTC)
- In effect from
- Feb 4, 2021, 4:00 AM EST
- Expired
- Feb 4, 2021, 8:00 AM EST
- In force
- 4 hr
- Issued by
- NWS Melbourne, FL
Counties Okeechobee County, FL, Osceola County, FL
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.3 hours before the alert went out and 97 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
- 1970 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
999 WWUS72 KMLB 031917 NPWMLB URGENT - WEATHER MESSAGE National Weather Service Melbourne FL 217 PM EST Wed Feb 3 2021 FLZ041-044>046-141-144-147-041300- /O.CON.KMLB.FZ.W.0002.210204T0600Z-210204T1300Z/ Inland Volusia-Northern Lake-Orange-Seminole-Coastal Volusia- Southern Lake-Northern Brevard- 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, Daytona Beach, New Smyrna Beach, Ormond Beach, Clermont, Mascotte, Groveland, Cocoa, and Titusville 217 PM EST Wed Feb 3 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM EST THURSDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Volusia, Northern Brevard, Lake, Seminole, and Orange Counties. * WHEN...From 1 AM to 8 AM EST Thursday. * IMPACTS...Freezing temperatures will hurt sensitive persons and outdoor pets. Frost and freeze conditions will kill crops other sensitive vegetation. * ADDITIONAL DETAILS...Cold weather shelters are open in many communities. Check with local county emergency management for locations and operating hours of shelters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ FLZ047-053-054-058-059-041300- /O.UPG.KMLB.FZ.A.0001.210204T0600Z-210204T1300Z/ /O.NEW.KMLB.FR.Y.0004.210204T0900Z-210204T1300Z/ Southern Brevard-Osceola-Indian River-Okeechobee-St. Lucie- Including the cities of Melbourne, Palm Bay, Rockledge, Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, Basinger, Fort Drum, Okeechobee, Port Saint Lucie, and Fort Pierce 217 PM EST Wed Feb 3 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EST THURSDAY... * WHAT...Low temperatures between 33 and 36 will result in frost formation late tonight. * WHERE...Southern Brevard, Osceola, Indian River, Okeechobee and St. Lucie Counties. * WHEN...From 4 AM to 8 AM EST Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ FLZ064-041300- /O.NEW.KMLB.FR.Y.0004.210204T0900Z-210204T1300Z/ Martin- Including the cities of Hobe Sound, Jensen Beach, Port Salerno, and Stuart 217 PM EST Wed Feb 3 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EST THURSDAY... * WHAT...Low temperatures between 34 and 37 will result in frost formation late tonight. * WHERE...Martin County, generally west of I-95. * WHEN...From 4 AM to 8 AM EST Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 3, 3:53 AM EST | Freeze Watch | MLB | Okeechobee, Osceola | 10 hr |
| Feb 3, 3:53 AM EST | Freeze Warning | MLB | Lake, Orange, Seminole, Volusia | 28 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.