Alert archive / Florida / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 166, NWS Jacksonville, FL

July 16, 2024Duval County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 16, 2024, 2:27 PM EDT for Duval County, Florida. It was in force for 17 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, 2024, 2:27 PM EDT (18:27 UTC)
Expired
Jul 16, 2024, 2:44 PM EDT
In force
17 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Duval County, FL

The radar

The Jacksonville radar (KJAX), 17 km from the middle of the area, began a volume at 18:30 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, 6.5 hours before the alert went out and 235 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 2024-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1109 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, Cape Canaveral, FL at 12:00Z on 2024-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
1109 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1030 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:26 PM EDTSpecial Weather StatementJAXSuwannee34 min
Jul 16, 3:28 AM EDTHeat AdvisoryJAXDuval, Flagler, Nassau11 hr
Jul 16, 2:03 PM EDTSpecial Weather StatementJAXFlagler27 min
Jul 16, 2:06 PM EDTSpecial Weather StatementJAXDuval24 min
Jul 16, 2:24 PM EDTSpecial Weather StatementJAXDuval36 min
Jul 16, 2:31 PM EDTSpecial Weather StatementJAXMarion29 min
Jul 16, 2:33 PM EDTSpecial Marine WarningJAX57 min
Jul 16, 2:46 PM EDTAreal Flood AdvisoryJAXFlagler119 min
Jul 16, 2:55 PM EDTSpecial Weather StatementJAXMarion50 min
Jul 16, 2:58 PM EDTSpecial Marine WarningJAX62 min
Jul 16, 3:47 PM EDTSpecial Weather StatementJAXPutnam43 min
Jul 16, 3:58 PM EDTAreal Flood AdvisoryJAXPutnam, Saint Johns2 hr
Jul 16, 4:13 PM EDTAreal Flood WarningJAXPutnam, Saint Johns2 hr
Jul 16, 4:24 PM EDTAreal Flood WarningJAXPutnam2 hr
Jul 16, 2:04 PM EDTSpecial Weather StatementJAXCamden26 min

Nearby

Severe Thunderstorm Warnings in Florida, 2024Every severe thunderstorm warning in 2024

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.