Alert archive / Florida / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 2, NWS Jacksonville, FL

January 9, 2024Hamilton County, Suwannee County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jan 9, 2024, 12:04 PM EST for Hamilton County, Suwannee County, Florida. It was in force for 56 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: Jan 9, 2024, 12:04 PM EST (17:04 UTC)
Expired: Jan 9, 2024, 1:00 PM EST
In force: 56 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Tornado: Possible
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Hamilton County, FL, Suwannee County, FL

The radar

The Moody AFB radar (KVAX), 61 km from the middle of the area, began a volume at 17:06 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
Jan 9, 7:07 AM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.1 hours before the alert went out and 123 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: 6 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 385 m²/s²
0-3 km storm-relative helicity: 546 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 Jan 9, 8:30 AM EST, 3 hours 34 minutes earlier.

Area forecast discussion, Jan 9, 8:30 AM EST, 3 hours 34 minutes before

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In the hours before

Local storm report, Jan 9, 8:02 AM EST, 4 hours 2 minutes before

Preliminary Local Storm Report
National Weather Service Jacksonville FL
802 AM EST Tue Jan 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0753 AM     Non-Tstm Wnd Gst 1 ENE Fort Caroline     30.39N 81.48W
01/09/2024  M42 MPH          Duval              FL   Mesonet

            Mesonet station XJAK Jacksonville.

&&

JCH

Local storm report, Jan 9, 8:17 AM EST, 3 hours 47 minutes before

Preliminary Local Storm Report
National Weather Service Jacksonville FL
817 AM EST Tue Jan 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     Non-Tstm Wnd Gst 2 S Mayport             30.36N 81.41W
01/09/2024  M42 MPH          Duval              FL   Mesonet

            Mesonet station 0174W 1.5 S Mayport
            (WEATHERSTEM).

&&

KC

Local storm report, Jan 9, 8:22 AM EST, 3 hours 42 minutes before

Preliminary Local Storm Report
National Weather Service Jacksonville FL
822 AM EST Tue Jan 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0750 AM     Non-Tstm Wnd Gst 2 WNW Mayport           30.39N 81.44W
01/09/2024  M46 MPH          AMZ452             FL   Mesonet

            Mesonet station 1483W Fswn Jfrd Station 40.

&&

KC

Local storm report, Jan 9, 9:05 AM EST, 2 hours 59 minutes before

Preliminary Local Storm Report
National Weather Service Jacksonville FL
905 AM EST Tue Jan 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0824 AM     Non-Tstm Wnd Gst Mayport                 30.38N 81.42W
01/09/2024  M43 MPH          Duval              FL   AWOS

            AWOS station KNRB Mayport Naval Station.

&&

JCH

Local storm report, Jan 9, 10:12 AM EST, 1 hour 52 minutes before

Preliminary Local Storm Report
National Weather Service Jacksonville FL
1012 AM EST Tue Jan 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0945 AM     Non-Tstm Wnd Gst 2 W Alma                31.54N 82.51W
01/09/2024  M40 MPH          Bacon              GA   Mesonet

            Mesonet station UGA41 Alma.

&&

DRD

Local storm report, Jan 9, 11:14 AM EST, 50 minutes before

Preliminary Local Storm Report
National Weather Service Jacksonville FL
1114 AM EST Tue Jan 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1100 AM     Non-Tstm Wnd Gst 2 WSW Alma              31.53N 82.50W
01/09/2024  M47 MPH          Bacon              GA   ASOS

            ASOS station KAMG Alma.

&&

DRD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 9, 2:33 AM EST	Coastal Flood Advisory	JAX	Duval, Nassau	16 hr
Jan 9, 2:33 AM EST	Rip Current Statement	JAX	Duval, Flagler, Nassau	22 hr
Jan 9, 2:33 AM EST	High Surf Advisory	JAX	Duval, Flagler, Nassau	16 hr
Jan 9, 2:51 AM EST	Storm Warning	JAX		16 hr
Jan 9, 12:58 PM EST	Severe Thunderstorm Warning	JAX	Hamilton, Suwannee	62 min
Jan 9, 1:27 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Baker, Columbia, Gilchrist, Hamilton, Suwannee and 1 more	63 min
Jan 9, 1:39 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Gilchrist	51 min
Jan 9, 1:45 PM EST	Tornado Warning	JAX	Baker	30 min
Jan 9, 1:55 PM EST	Special Marine Warning	JAX		95 min
Jan 9, 1:55 PM EST	Severe Thunderstorm Warning Considerable damage threat	JAX	Nassau	65 min
Jan 9, 2:02 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Baker, Bradford, Clay, Columbia, Duval and 2 more	43 min
Jan 9, 2:09 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Gilchrist, Marion	51 min
Jan 9, 2:15 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Clay, Duval, Putnam	30 min
Jan 9, 2:29 PM EST	River Flood Warning	JAX	Alachua, Columbia	21 days
Jan 9, 2:29 PM EST	River Flood Warning	JAX	Columbia, Gilchrist, Suwannee	21 days
Jan 9, 2:38 PM EST	Tornado Warning	JAX	Alachua	26 min
Jan 9, 2:44 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Baker, Bradford, Clay, Duval, Nassau and 3 more	61 min
Jan 9, 2:57 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Clay, Marion, Putnam	63 min
Jan 9, 3:10 PM EST	Severe Thunderstorm Warning	JAX	Nassau	36 min
Jan 9, 3:16 PM EST	Tornado Warning	JAX	Marion	29 min
Jan 9, 3:34 PM EST	Special Marine Warning	JAX		116 min
Jan 9, 3:35 PM EST	Tornado Warning	JAX	Alachua, Marion, Putnam	25 min
Jan 9, 3:44 PM EST	Special Marine Warning	JAX		2 hr
Jan 9, 3:48 PM EST	Severe Thunderstorm Warning	JAX	Clay, Duval, Nassau, Putnam, Saint Johns	27 min
Jan 9, 3:53 PM EST	Tornado Warning	JAX	Clay, Duval, Saint Johns	22 min
Jan 9, 3:59 PM EST	Tornado Warning	JAX	Marion, Putnam	14 min
Jan 9, 4:01 PM EST	Severe Thunderstorm Warning	JAX	Flagler, Marion, Putnam, Saint Johns	44 min
Jan 9, 4:04 PM EST	Tornado Warning	JAX	Marion	26 min
Jan 9, 4:10 PM EST	Tornado Warning	JAX	Duval, Saint Johns	6 min
Jan 9, 4:15 PM EST	Severe Thunderstorm Warning	JAX	Putnam, Saint Johns	45 min
Jan 9, 4:42 PM EST	Severe Thunderstorm Warning	JAX	Flagler, Marion, Putnam, Saint Johns	33 min
Jan 9, 4:57 PM EST	Tornado Warning	JAX	Flagler, Putnam	33 min
Jan 9, 5:28 PM EST	Severe Thunderstorm Warning	JAX	Flagler	17 min
Jan 9, 5:41 PM EST	Special Marine Warning	JAX		94 min
Jan 9, 6:27 PM EST	Small Craft Advisory	JAX		18 hr
Jan 9, 11:52 AM EST	Severe Thunderstorm Warning Considerable damage threat	JAX	Atkinson, Clinch, Coffee, Echols, Jeff Davis	53 min
Jan 9, 12:41 PM EST	Severe Thunderstorm Warning Destructive damage threat	JAX	Appling, Atkinson, Bacon, Clinch, Coffee, Jeff Davis and 1 more	64 min
Jan 9, 12:49 PM EST	Severe Thunderstorm Warning Considerable damage threat	JAX	Clinch, Echols, Ware	56 min
Jan 9, 12:51 PM EST	Tornado Warning	JAX	Bacon, Coffee, Jeff Davis	24 min
Jan 9, 12:52 PM EST	Tornado Warning	JAX	Atkinson, Bacon, Coffee, Pierce, Ware	38 min
Jan 9, 1:12 PM EST	Severe Thunderstorm Warning Considerable damage threat	JAX	Appling, Bacon, Jeff Davis	33 min
Jan 9, 1:17 PM EST	Severe Thunderstorm Warning	JAX	Appling, Bacon, Pierce, Wayne	28 min
Jan 9, 1:30 PM EST	Tornado Warning	JAX	Appling, Bacon, Wayne	30 min
Jan 9, 1:33 PM EST	Severe Thunderstorm Warning Considerable damage threat	JAX	Appling, Bacon, Brantley, Charlton, Clinch, Echols and 3 more	57 min
Jan 9, 1:40 PM EST	Tornado Warning	JAX	Appling, Bacon, Pierce, Wayne	35 min
Jan 9, 1:48 PM EST	Severe Thunderstorm Warning Considerable damage threat	JAX	Appling, Bacon, Wayne	27 min
Jan 9, 2:30 PM EST	Severe Thunderstorm Warning	JAX	Camden, Glynn	60 min
Jan 9, 2:42 PM EST	Tornado Warning	JAX	Camden, Glynn	19 min
Jan 9, 3:00 PM EST	Tornado Warning Tornado observed	JAX	Glynn	15 min
Jan 9, 3:24 PM EST	Severe Thunderstorm Warning	JAX	Camden, Glynn	36 min

Nearby

Severe Thunderstorm Warnings in Florida, 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.