Alert archive / Florida / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 89, NWS Jacksonville, FL

June 10, 2025Saint Johns County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 10, 2025, 5:05 PM EDT for Saint Johns County, Florida. It was in force for 27 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
Jun 10, 2025, 5:05 PM EDT (21:05 UTC)
Expired
Jun 10, 2025, 5:32 PM EDT
In force
27 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 70 km from the middle of the area, began a volume at 21:05 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

Jacksonville, FL (KJAX), launched 12:00Z, 9.1 hours before the alert went out and 71 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, Jacksonville, FL at 12:00Z on 2025-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 950 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, Jacksonville, FL at 12:00Z on 2025-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
950 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
963 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 5:52 AM EDTSpecial Weather StatementJAXHamilton38 min
Jun 10, 6:32 AM EDTSpecial Weather StatementJAXHamilton, Suwannee28 min
Jun 10, 10:20 AM EDTSpecial Weather StatementJAXMarion25 min
Jun 10, 10:39 AM EDTSpecial Weather StatementJAXSaint Johns36 min
Jun 10, 11:15 AM EDTSpecial Weather StatementJAXSaint Johns30 min
Jun 10, 11:48 AM EDTSpecial Weather StatementJAXFlagler27 min
Jun 10, 12:14 PM EDTSpecial Weather StatementJAXFlagler16 min
Jun 10, 12:29 PM EDTSpecial Weather StatementJAXFlagler31 min
Jun 10, 1:52 PM EDTSpecial Weather StatementJAXClay38 min
Jun 10, 4:02 PM EDTSpecial Weather StatementJAXSaint Johns28 min
Jun 10, 4:26 PM EDTSpecial Weather StatementJAXSaint Johns34 min
Jun 10, 4:55 PM EDTSpecial Weather StatementJAXSaint Johns35 min
Jun 10, 6:04 PM EDTSpecial Weather StatementJAXPutnam26 min
Jun 10, 6:56 PM EDTSpecial Weather StatementJAXNassau34 min
Jun 10, 7:36 PM EDTSpecial Weather StatementJAXPutnam24 min
Jun 10, 7:56 PM EDTSpecial Weather StatementJAXFlagler34 min
Jun 10, 5:50 AM EDTSpecial Weather StatementJAXAtkinson, Coffee, Jeff Davis40 min
Jun 10, 6:29 AM EDTSpecial Weather StatementJAXAtkinson, Coffee, Jeff Davis31 min
Jun 10, 6:58 AM EDTSpecial Weather StatementJAXAppling, Bacon, Jeff Davis47 min
Jun 10, 7:18 PM EDTSpecial Weather StatementJAXWayne27 min
Jun 10, 7:47 PM EDTSpecial Weather StatementJAXWayne28 min
Jun 10, 7:51 PM EDTSpecial Weather StatementJAXAtkinson39 min

Nearby

Severe Thunderstorm Warnings in Florida, 2025Every severe thunderstorm warning in 2025

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.