Alert archive / Florida / Frost Advisories in 2023

Frost Advisory 1, NWS Melbourne, FL

January 14, 20237 counties in Florida

NWS Melbourne, FL issued this frost advisory at Jan 14, 2023, 1:17 PM EST for 7 counties in Florida. It took effect at Jan 15, 2023, 4:00 AM EST. It was in force for 117 min.

The area

The counties it named.

The facts

Issued: Jan 14, 2023, 1:17 PM EST (18:17 UTC)
In effect from: Jan 15, 2023, 4:00 AM EST
Expired: Jan 15, 2023, 5:57 AM EST
In force: 117 min
Issued by: NWS Melbourne, FL

Counties Brevard County, FL, Indian River County, FL, Martin County, FL, Orange County, FL, Saint Lucie County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 17 km from the middle of the area, began a volume at 18:16 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

Miami, FL (KMFL), launched 12:00Z, 6.3 hours before the alert went out and 260 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1084 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: -210 m²/s²
0-3 km storm-relative helicity: -72 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 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 14, 10:43 AM EST, 2 hours 34 minutes earlier.

Area forecast discussion, Jan 14, 10:43 AM EST, 2 hours 34 minutes before

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Hazardous weather outlook, Jan 14, 10:51 AM EST, 2 hours 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 14, 1:21 AM EST	Freeze Watch	MLB	Lake, Volusia	12 hr
Jan 14, 3:01 AM EST	Beach Hazards Statement	MLB	Brevard, Indian River, Martin, Saint Lucie, Volusia	48 hr
Jan 14, 1:17 PM EST	Freeze Warning	MLB	Lake, Okeechobee, Osceola, Volusia	19 hr

Nearby

Frost Advisories in Florida, 2023 Every frost advisory in 2023

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.