Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 128, NWS Melbourne, FL

July 16, 2023Martin County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 16, 2023, 4:46 PM EDT for Martin County, Florida. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 16, 2023, 4:46 PM EDT (20:46 UTC)
Expired
Jul 16, 2023, 5:16 PM EDT
In force
30 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Martin County, FL

The radar

The Melbourne radar (KMLB), 117 km from the middle of the area, began a volume at 20:47 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, 8.8 hours before the alert went out and 141 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, Miami, FL at 12:00Z on 2023-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1667 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, Miami, FL at 12:00Z on 2023-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
1667 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
938 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 12:52 PM EDTSpecial Marine WarningMLB113 min
Jul 16, 1:23 PM EDTSpecial Weather StatementMLBOsceola37 min
Jul 16, 2:11 PM EDTSpecial Weather StatementMLBOsceola34 min
Jul 16, 2:28 PM EDTAreal Flood WarningMLBVolusia92 min
Jul 16, 2:39 PM EDTSpecial Weather StatementMLBBrevard36 min
Jul 16, 2:44 PM EDTSpecial Marine WarningMLB91 min
Jul 16, 2:56 PM EDTSpecial Weather StatementMLBOkeechobee34 min
Jul 16, 3:14 PM EDTSpecial Weather StatementMLBBrevard31 min
Jul 16, 3:19 PM EDTSpecial Weather StatementMLBOkeechobee41 min
Jul 16, 3:57 PM EDTSpecial Marine WarningMLB2 hr
Jul 16, 4:00 PM EDTSpecial Weather StatementMLBMartin45 min
Jul 16, 4:28 PM EDTSpecial Weather StatementMLBMartin47 min
Jul 16, 4:56 PM EDTAreal Flood AdvisoryMLBMartin2 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2023Every severe thunderstorm warning 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.