Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 85, NWS Jacksonville, FL

April 27, 2023Clay County, Putnam County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 27, 2023, 3:57 PM EDT for Clay County, Putnam County, Florida. It was in force for 33 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 27, 2023, 3:57 PM EDT (19:57 UTC)
Expired: Apr 27, 2023, 4:30 PM EDT
In force: 33 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Clay County, FL, Putnam County, FL

The radar

The Jacksonville radar (KJAX), 77 km from the middle of the area, began a volume at 19:57 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 27, 2:46 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 8.0 hours before the alert went out and 79 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: 730 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.6

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 27, 3:07 PM EDT, 50 minutes earlier.

Area forecast discussion, Apr 27, 3:07 PM EDT, 50 minutes before

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In the hours before

Special weather statement, Apr 27, 3:21 PM EDT, 36 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
321 PM EDT Thu Apr 27 2023

FLZ020-021-271945-
Hamilton FL-Suwannee FL-
321 PM EDT Thu Apr 27 2023

...A strong thunderstorm will impact portions of northeastern
Suwannee and eastern Hamilton Counties through 345 PM EDT...

At 321 PM EDT, Doppler radar was tracking a strong thunderstorm near
Suwannee Springs, moving north at 35 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Live Oak, Jasper, White Springs, Suwannee Springs and Belmont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3061 8292 3060 8269 3056 8273 3053 8271
      3053 8273 3049 8270 3048 8270 3047 8268
      3032 8276 3033 8276 3032 8280 3025 8279
      3024 8280 3030 8300
TIME...MOT...LOC 1921Z 199DEG 30KT 3035 8288

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

SHASHY

Local storm report, Apr 27, 3:23 PM EDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
323 PM EDT THU APR 27 2023

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

0900 PM     TSTM WND DMG     2 NE OCALA AIRPORT      29.19N 82.20W
04/26/2023                   MARION             FL   PUBLIC

            FDEM REGION 3 COORDINATOR REPORTED DAMAGE
            ACROSS OCALA FROM PASSING THUNDERSTORMS.
            REPORTED A STRUCTURE FIRE DUE TO HIGH WINDS.
            REPORTED HAIL DAMAGE TO APPROX. 40 COUNTY
            VEHICLES AND 4 HOUSES. THERE WERE ALSO
            DOWNED POWER LINES.

&&

AC

Special weather statement, Apr 27, 3:28 PM EDT, 29 minutes before

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Special weather statement, Apr 27, 3:41 PM EDT, 16 minutes before

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Local storm report, Apr 27, 3:46 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
346 PM EDT THU APR 27 2023

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

0322 PM     TSTM WND GST     1 NW GAINESVILLE AIRPOR 29.70N 82.28W
04/27/2023  M40 MPH          ALACHUA            FL   ASOS

            ASOS STATION KGNV GAINESVILLE.

&&

AC

Special weather statement, Apr 27, 3:54 PM EDT, 3 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 26, 8:01 PM EDT	Areal Flood Advisory	JAX	Alachua	59 min
Apr 26, 8:08 PM EDT	Special Weather Statement	JAX	Hamilton	37 min
Apr 26, 8:11 PM EDT	Special Weather Statement	JAX	Marion	34 min
Apr 26, 8:14 PM EDT	Special Weather Statement	JAX	Marion	46 min
Apr 26, 8:23 PM EDT	Severe Thunderstorm Warning	JAX	Marion	37 min
Apr 26, 8:25 PM EDT	Severe Thunderstorm Warning	JAX	Marion	35 min
Apr 26, 8:49 PM EDT	Special Weather Statement	JAX	Marion	41 min
Apr 26, 8:56 PM EDT	Special Weather Statement	JAX	Putnam	34 min
Apr 26, 9:04 PM EDT	Special Weather Statement	JAX	Marion	56 min
Apr 26, 9:20 PM EDT	Severe Thunderstorm Warning	JAX	Marion	40 min
Apr 26, 9:29 PM EDT	Special Weather Statement	JAX	Baker	31 min
Apr 26, 9:56 PM EDT	Severe Thunderstorm Warning	JAX	Marion	34 min
Apr 26, 10:00 PM EDT	Special Weather Statement	JAX	Baker	30 min
Apr 27, 3:23 AM EDT	Rip Current Statement	JAX	Duval, Flagler, Nassau	24 hr
Apr 27, 2:03 PM EDT	Special Weather Statement	JAX	Gilchrist	27 min
Apr 27, 2:22 PM EDT	Special Weather Statement	JAX	Alachua	23 min
Apr 27, 2:35 PM EDT	Special Weather Statement	JAX	Suwannee	40 min
Apr 27, 2:56 PM EDT	Special Weather Statement	JAX	Alachua	34 min
Apr 27, 3:01 PM EDT	Special Weather Statement	JAX	Duval	29 min
Apr 27, 3:09 PM EDT	Special Weather Statement	JAX	Columbia	36 min
Apr 27, 3:16 PM EDT	Special Weather Statement	JAX	Bradford	29 min
Apr 27, 3:21 PM EDT	Special Weather Statement	JAX	Hamilton	24 min
Apr 27, 3:28 PM EDT	Special Weather Statement	JAX	Duval	32 min
Apr 27, 3:38 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Duval	37 min
Apr 27, 3:41 PM EDT	Special Weather Statement	JAX	Bradford	34 min
Apr 27, 3:56 PM EDT	Special Marine Warning	JAX		2 hr
Apr 27, 4:02 PM EDT	Severe Thunderstorm Warning Considerable damage threat	JAX	Clay, Duval, Saint Johns	43 min
Apr 27, 4:05 PM EDT	Severe Thunderstorm Warning	JAX	Hamilton	40 min
Apr 27, 4:22 PM EDT	Special Weather Statement	JAX	Saint Johns	53 min
Apr 27, 4:26 PM EDT	Special Marine Warning	JAX		2 hr
Apr 27, 4:37 PM EDT	Severe Thunderstorm Warning	JAX	Putnam, Saint Johns	38 min
Apr 27, 4:44 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Saint Johns	46 min
Apr 27, 4:48 PM EDT	Special Weather Statement	JAX	Hamilton	87 min
Apr 27, 5:14 PM EDT	Severe Thunderstorm Warning Considerable damage threat	JAX	Flagler, Saint Johns	47 min
Apr 27, 5:33 PM EDT	Special Weather Statement	JAX	Duval	42 min
Apr 27, 5:37 PM EDT	Special Weather Statement	JAX	Flagler	38 min
Apr 27, 5:43 PM EDT	Special Marine Warning	JAX		47 min
Apr 27, 5:50 PM EDT	Areal Flood Advisory	JAX	Duval, Saint Johns	55 min
Apr 27, 6:31 PM EDT	Special Marine Warning	JAX		59 min
Apr 27, 7:03 PM EDT	Special Weather Statement	JAX	Hamilton	57 min
Apr 27, 7:43 PM EDT	Special Marine Warning	JAX		92 min
Apr 27, 7:49 PM EDT	Special Weather Statement	JAX	Columbia, Gilchrist, Hamilton, Suwannee	41 min
Apr 27, 7:56 PM EDT	Special Marine Warning	JAX		64 min
Apr 26, 11:26 PM EDT	Special Weather Statement	JAX	Jeff Davis	34 min
Apr 27, 2:27 PM EDT	Special Weather Statement	JAX	Pierce	33 min
Apr 27, 3:18 PM EDT	Special Weather Statement	JAX	Pierce	27 min
Apr 27, 3:54 PM EDT	Special Weather Statement	JAX	Wayne	36 min
Apr 27, 3:59 PM EDT	Special Weather Statement	JAX	Echols	31 min
Apr 27, 4:15 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Wayne	45 min
Apr 27, 4:56 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	49 min
Apr 27, 5:11 PM EDT	Severe Thunderstorm Warning	JAX	Glynn	49 min
Apr 27, 5:52 PM EDT	Special Weather Statement	JAX	Brantley, Pierce, Wayne	53 min
Apr 27, 5:59 PM EDT	Areal Flood Warning	JAX	Pierce, Ware	91 min
Apr 27, 6:20 PM EDT	Special Weather Statement	JAX	Charlton	40 min
Apr 27, 6:31 PM EDT	Areal Flood Advisory	JAX	Glynn	59 min
Apr 27, 6:36 PM EDT	Special Weather Statement	JAX	Brantley	24 min
Apr 27, 6:45 PM EDT	Areal Flood Advisory	JAX	Brantley, Pierce, Ware	2 hr
Apr 27, 6:47 PM EDT	Areal Flood Warning	JAX	Brantley, Camden, Charlton	3 hr
Apr 27, 6:51 PM EDT	Special Weather Statement	JAX	Charlton	24 min
Apr 27, 6:57 PM EDT	Special Weather Statement	JAX	Camden, Glynn	48 min
Apr 27, 7:15 PM EDT	Special Weather Statement	JAX	Camden	30 min
Apr 27, 7:24 PM EDT	Areal Flood Warning	JAX	Glynn	3 hr
Apr 27, 7:37 PM EDT	Areal Flood Advisory	JAX	Brantley, Camden, Glynn	3 hr
Apr 27, 7:45 PM EDT	Special Weather Statement	JAX	Camden, Glynn	45 min

Nearby

Severe Thunderstorm Warnings in Florida, 2023 Every severe thunderstorm warning in 2023

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.