Alert archive / Florida / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 79, NWS Jacksonville, FL

April 3, 2024Baker County, Duval County, Nassau County, Florida; Charlton County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 3, 2024, 10:53 AM EDT for Baker County, Duval County, Nassau County, Florida; Charlton County, Georgia. It was in force for 37 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: Apr 3, 2024, 10:53 AM EDT (14:53 UTC)
Expired: Apr 3, 2024, 11:30 AM EDT
In force: 37 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Baker County, FL, Duval County, FL, Nassau County, FL, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 25 km from the middle of the area, began a volume at 14:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 3, 5:51 AM EDT	Tornado Watch	SPC	7 hr
Apr 3, 10:43 AM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 2.9 hours before the alert went out and 25 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: 48 J/kg
Mixed-layer CIN: -277 J/kg
Mixed-layer LCL: 666 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 118 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 3, 10:48 AM EDT, 5 minutes earlier.

Area forecast discussion, Apr 3, 10:48 AM EDT, 5 minutes before

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In the hours before

Special weather statement, Apr 3, 9:03 AM EDT, 1 hour 50 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
903 AM EDT Wed Apr 3 2024

FLZ021-023-120-220-322-422-522-GAZ162-163-350-364-031345-
Southeastern Columbia FL-Baker FL-Western Hamilton FL-
Eastern Hamilton FL-Southwestern Columbia FL-Northern Columbia FL-
Suwannee FL-Clinch GA-Western Charlton GA-Echols GA-Southern Ware GA-
903 AM EDT Wed Apr 3 2024

...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN BAKER...SUWANNEE...
COLUMBIA...EASTERN HAMILTON...SOUTHEASTERN ECHOLS...SOUTHEASTERN
WARE...SOUTHEASTERN CLINCH AND CENTRAL CHARLTON COUNTIES THROUGH 945
AM EDT...

At 903 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Fargo to 11 miles southwest of Dowling
Park. Movement was east near 35 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Lake City, Live Oak, Jasper, White Springs, Fargo, Suwannee Springs,
Winfield, Suwannee Valley, Belmont, and Mcalpin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 100 PM EDT for northern and
northeastern Florida...and southeastern Georgia.

&&

LAT...LON 3031 8321 3035 8321 3035 8319 3074 8262
      3075 8211 3060 8214 2991 8289 2992 8293
      2996 8293 2996 8295 2999 8296 3001 8300
      3008 8307 3009 8311 3011 8312 3010 8314
      3011 8316 3009 8319 3012 8323 3026 8325
TIME...MOT...LOC 1303Z 274DEG 28KT 3071 8255 3013 8337

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

SHASHY

Special weather statement, Apr 3, 9:47 AM EDT, 1 hour 6 minutes before

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Special weather statement, Apr 3, 9:59 AM EDT, 54 minutes before

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Special weather statement, Apr 3, 10:21 AM EDT, 32 minutes before

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Special weather statement, Apr 3, 10:34 AM EDT, 19 minutes before

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Special weather statement, Apr 3, 10:45 AM EDT, 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 7:48 AM EDT	Special Weather Statement	JAX	Hamilton	42 min
Apr 3, 8:25 AM EDT	Special Weather Statement	JAX	Hamilton	35 min
Apr 3, 9:03 AM EDT	Special Weather Statement	JAX	Columbia, Hamilton, Suwannee	42 min
Apr 3, 9:47 AM EDT	Special Weather Statement	JAX	Columbia, Suwannee	43 min
Apr 3, 10:12 AM EDT	Severe Thunderstorm Warning	JAX	Alachua, Baker, Bradford, Columbia, Gilchrist, Suwannee and 1 more	63 min
Apr 3, 10:34 AM EDT	Special Weather Statement	JAX	Baker	41 min
Apr 3, 10:56 AM EDT	Special Weather Statement	JAX	Bradford, Clay	34 min
Apr 3, 11:04 AM EDT	Severe Thunderstorm Warning	JAX	Alachua, Baker, Bradford, Clay, Duval, Putnam and 2 more	41 min
Apr 3, 11:14 AM EDT	Special Weather Statement	JAX	Alachua	31 min
Apr 3, 11:24 AM EDT	Special Weather Statement	JAX	Duval, Nassau	36 min
Apr 3, 11:26 AM EDT	Special Marine Warning	JAX		94 min
Apr 3, 11:46 AM EDT	Special Weather Statement	JAX	Clay, Putnam, Saint Johns	44 min
Apr 3, 12:08 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	22 min
Apr 3, 12:31 PM EDT	Special Weather Statement	JAX	Saint Johns	29 min
Apr 3, 12:35 PM EDT	Special Marine Warning	JAX		85 min
Apr 3, 12:38 PM EDT	Areal Flood Advisory	JAX	Clay, Putnam	112 min
Apr 3, 1:26 PM EDT	Special Weather Statement	JAX	Flagler, Marion, Putnam, Saint Johns	49 min
Apr 3, 1:57 PM EDT	Special Weather Statement	JAX	Flagler, Marion, Putnam	48 min
Apr 3, 2:00 PM EDT	Special Marine Warning	JAX		60 min
Apr 3, 2:44 PM EDT	Special Weather Statement	JAX	Flagler	31 min
Apr 3, 3:02 PM EDT	Special Marine Warning	JAX		43 min
Apr 3, 6:27 AM EDT	Tornado Warning	JAX	Jeff Davis	17 min
Apr 3, 6:42 AM EDT	Special Weather Statement	JAX	Jeff Davis	33 min
Apr 3, 7:10 AM EDT	Special Weather Statement	JAX	Coffee, Jeff Davis	35 min
Apr 3, 7:22 AM EDT	Special Weather Statement	JAX	Appling	23 min
Apr 3, 7:26 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Clinch, Coffee	34 min
Apr 3, 7:41 AM EDT	Special Weather Statement	JAX	Appling, Coffee, Jeff Davis	34 min
Apr 3, 7:57 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Atkinson, Bacon, Coffee, Ware	33 min
Apr 3, 8:13 AM EDT	Special Weather Statement	JAX	Appling	32 min
Apr 3, 8:28 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Pierce, Ware, Wayne	32 min
Apr 3, 8:58 AM EDT	Special Weather Statement	JAX	Wayne	62 min
Apr 3, 9:01 AM EDT	Special Weather Statement	JAX	Pierce, Ware	44 min
Apr 3, 9:23 AM EDT	Tornado Warning	JAX	Wayne	22 min
Apr 3, 9:59 AM EDT	Special Weather Statement	JAX	Clinch	31 min
Apr 3, 10:21 AM EDT	Special Weather Statement	JAX	Brantley, Pierce, Ware, Wayne	24 min
Apr 3, 10:45 AM EDT	Special Weather Statement	JAX	Brantley, Glynn	30 min

Nearby

Severe Thunderstorm Warnings in Florida, 2024 Severe Thunderstorm Warnings in Georgia, 2024 Every 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.