Alert archive / Florida / Flash Flood Warnings in 2025

Flash Flood Warning 10, NWS Jacksonville, FL

July 12, 2025Duval County, Florida

NWS Jacksonville, FL issued this flash flood warning at Jul 12, 2025, 5:12 PM EDT for Duval County, Florida. It was in force for 42 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 12, 2025, 5:12 PM EDT (21:12 UTC)
Expired
Jul 12, 2025, 5:54 PM EDT
In force
42 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Flood severity
None

County Duval County, FL

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.2 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 2025-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2025-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1456 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-10 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 11, 9:16 PM EDTSpecial Weather StatementJAXPutnam29 min
Jul 11, 9:22 PM EDTSevere Thunderstorm WarningJAXMarion12 min
Jul 12, 1:55 PM EDTSpecial Weather StatementJAXBradford35 min
Jul 12, 2:11 PM EDTSpecial Weather StatementJAXSaint Johns34 min
Jul 12, 2:23 PM EDTSpecial Weather StatementJAXAlachua37 min
Jul 12, 2:25 PM EDTSpecial Weather StatementJAXAlachua35 min
Jul 12, 2:34 PM EDTSpecial Weather StatementJAXClay26 min
Jul 12, 2:51 PM EDTSpecial Weather StatementJAXSaint Johns24 min
Jul 12, 2:59 PM EDTSpecial Weather StatementJAXAlachua31 min
Jul 12, 3:01 PM EDTSpecial Weather StatementJAXPutnam29 min
Jul 12, 3:10 PM EDTSpecial Weather StatementJAXPutnam35 min
Jul 12, 3:21 PM EDTSpecial Weather StatementJAXSaint Johns24 min
Jul 12, 3:44 PM EDTSpecial Weather StatementJAXSaint Johns31 min
Jul 12, 3:50 PM EDTSpecial Weather StatementJAXFlagler25 min
Jul 12, 4:08 PM EDTSpecial Weather StatementJAXDuval37 min
Jul 12, 4:14 PM EDTSpecial Weather StatementJAXFlagler31 min
Jul 12, 4:18 PM EDTSpecial Marine WarningJAX57 min
Jul 12, 4:37 PM EDTSevere Thunderstorm WarningJAXFlagler38 min
Jul 12, 4:45 PM EDTSpecial Weather StatementJAXDuval30 min
Jul 12, 4:54 PM EDTAreal Flood AdvisoryJAXDuval66 min
Jul 12, 5:15 PM EDTAreal Flood AdvisoryJAXFlagler54 min
Jul 12, 5:17 PM EDTSpecial Marine WarningJAX58 min
Jul 12, 5:24 PM EDTAreal Flood AdvisoryJAXDuval45 min
Jul 12, 7:29 PM EDTSpecial Weather StatementJAXMarion31 min
Jul 12, 7:59 PM EDTAreal Flood AdvisoryJAXMarion61 min
Jul 12, 5:30 PM EDTSpecial Weather StatementJAXCamden30 min

Nearby

Flash Flood Warnings in Florida, 2025Every flash flood 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.