Alert archive / Florida / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 91, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 3, 2019, 3:34 PM EDT for Clay County, Florida. It was in force for 41 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 3, 2019, 3:34 PM EDT (19:34 UTC)
- Expired
- Jul 3, 2019, 4:15 PM EDT
- In force
- 41 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Clay County, FL
The radar
The Jacksonville radar (KJAX), 58 km from the middle of the area, began a volume at 19:34 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, 7.6 hours before the alert went out and 59 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.
- Mixed-layer CAPE
- 1727 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 1292 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 3, 10:08 AM EDT, 5 hours 26 minutes earlier.
Area forecast discussion, Jul 3, 10:08 AM EDT, 5 hours 26 minutes before
Area Forecast Discussion
National Weather Service Jacksonville FL
1008 AM EDT Wed Jul 3 2019
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM EDT THIS EVENING...
.UPDATE...
Just some middle to high level cloudiness this morning will be
replaced by scattered cumulus cloud streets through the early
afternoon. With sinking air locally low level cloudiness will be
somewhat suppressed allowing for high temperatures approaching
the century mark and heat index values up to 110F. Any time we get
temperatures that high with high relative humidity a few storms
will blow through the inversion/sinking air and expect that to
happen along the east coast Sea Breeze front between 2 and 8 p.m. The
sea breeze will most likely set up near the St Johns River south
of Downtown and along I-95 north of Downtown. That said it
shouldn't get west of Trail Ridge before the cells fall apart. Some
of those storms will be strong and with weak steering currents
they will move slowly allowing for locally heavy rainfall.
THEN...Later this afternoon and this evening the West Coast Sea
Breeze will become active between 6 p.m. and 10 p.m. in the
vicinity of I-75 and will drift eastward. Same issues as before
with a few strong storms and locally heavy downpours in the areas
were storms move slowly.
&&
.AVIATION...
Just a scattered to broken mid layer and broken-overcast cirrus
this morning. Expect a cumulus layer to develop at 3-4 KFT between
14 to 18 utc. Sea breeze shower/TSTM development should begin
between 18-20 utc and mainly from The St Johns River/I-95
westward. Best chance of precipitation should be at KJAX and
KVQQ with tempos for those stations between 2-3SM and 3-5 KFT
Ceilings between 18-22 utc. Later in the day the west coast sea
breeze will become active with a similar tempo group for KGNV
between 22 and 02 utc.
&&
.MARINE...
An extended period with no marine headlines. Prevailing offshore
flow 10-15 kts for most of the period with a local SSE-ESE east
coast sea breeze developing each afternoon through Friday
nearshore. Combined seas 4 ft or less. Stronger WSW winds into
the weekend will likely keep east coast sea breeze offshore.
Nocturnal wind surge under SW flow will near 15 kts into the
weekend. Best chances of thunderstorms will focus inland through
Thursday, then thunderstorm chances increase over the local waters
into the weekend.
RIP CURRENTS: Low risk today and Thursday.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 99 76 96 74 / 60 60 70 50
SSI 95 81 91 78 / 30 20 30 30
JAX 98 77 95 76 / 50 40 50 40
SGJ 94 79 91 76 / 40 20 30 30
GNV 96 76 93 75 / 70 60 70 40
OCF 95 75 94 75 / 70 60 60 40
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...Heat Advisory until 6 PM EDT this evening for Baker-Bradford-
Central Marion-Clay-Coastal Duval-Coastal Flagler-Coastal
Nassau-Coastal St. Johns-Eastern Alachua-Eastern Marion-
Gilchrist-Hamilton-Inland Duval-Inland Flagler-Inland
Nassau-Inland St. Johns-Northern Columbia-Putnam-Southern
Columbia-Suwannee-Union-Western Alachua-Western Marion.
GA...Heat Advisory until 6 PM EDT this evening for Atkinson-Brantley-
Clinch-Coastal Camden-Coastal Glynn-Echols-Inland Camden-
Inland Glynn-Northeastern Charlton-Northern Ware-Pierce-
Southern Ware-Western Charlton.
AM...None.
&&
Sandrik/Nelson/KennedyIn the hours before
Special weather statement, Jul 3, 2:48 PM EDT, 46 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
248 PM EDT Wed Jul 3 2019
GAZ165-166-031915-
Inland Camden GA-Coastal Camden GA-
248 PM EDT Wed Jul 3 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CAMDEN COUNTY UNTIL
315 PM EDT...
* At 248 PM EDT, National Weather Service meteorologists were
tracking a cluster of strong thunderstorms near Waverly, or near
Woodbine, moving south at 10 mph.
* Wind gusts up to 50 mph possible with this storm.
* Locations impacted include...
Woodbine, Waverly, Tarboro and Colesburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Jacksonville on
Facebook and Twitter.
&&
LAT...LON 3091 8159 3091 8187 3102 8184 3115 8176
3113 8170 3112 8169 3112 8168 3109 8157
TIME...MOT...LOC 1848Z 357DEG 8KT 3103 8176
SHASHYSpecial weather statement, Jul 3, 2:56 PM EDT, 38 minutes before
Special Weather Statement National Weather Service Jacksonville FL 256 PM EDT Wed Jul 3 2019 GAZ132-133-031930- Coffee GA-Jeff Davis GA- 256 PM EDT Wed Jul 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL COFFEE AND SOUTHWESTERN JEFF DAVIS COUNTIES UNTIL 330 PM EDT... * At 256 PM EDT, National Weather Service meteorologists were tracking a strong thunderstorm over Broxton, moving southeast at 5 mph. * Wind gusts of 50 to 55 mph possible with this storm. * Locations impacted include... Douglas, Broxton and West Green. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact your nearest law enforcement agency. You can also share your report with NWS Jacksonville on Facebook and Twitter. && LAT...LON 3163 8300 3175 8285 3166 8266 3150 8282 TIME...MOT...LOC 1856Z 310DEG 5KT 3164 8286 SHASHY
Special weather statement, Jul 3, 3:02 PM EDT, 32 minutes before
Special Weather Statement National Weather Service Jacksonville FL 302 PM EDT Wed Jul 3 2019 FLZ023>025-GAZ364-031945- Inland Duval FL-Baker FL-Inland Nassau FL-Western Charlton GA- 302 PM EDT Wed Jul 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN NASSAU...EASTERN BAKER...WEST CENTRAL DUVAL AND SOUTHERN CHARLTON COUNTIES UNTIL 345 PM EDT... * At 302 PM EDT, National Weather Service meteorologists were tracking a strong thunderstorm near Bryceville, or 18 miles southwest of Callahan, moving east at 5 mph. * Winds in excess of 45 mph possible with this storm. * Locations impacted include... Bryceville, Baldwin and Whitehouse Air Field. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. If you can hear thunder, you are close enough to be struck! Seek a safe shelter inside a building or vehicle. To report severe weather, contact your nearest law enforcement agency. You can also share your report with NWS Jacksonville on Facebook and Twitter. && LAT...LON 3027 8208 3040 8215 3053 8191 3032 8183 TIME...MOT...LOC 1902Z 249DEG 5KT 3035 8203 SHASHY
Special weather statement, Jul 3, 3:06 PM EDT, 28 minutes before
Special Weather Statement National Weather Service Jacksonville FL 306 PM EDT Wed Jul 3 2019 FLZ025-032-037-031930- Inland Duval FL-Putnam FL-Clay FL- 306 PM EDT Wed Jul 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL PUTNAM...CENTRAL CLAY AND SOUTHWESTERN DUVAL COUNTIES UNTIL 330 PM EDT... * At 306 PM EDT, National Weather Service meteorologists were tracking strong thunderstorms along a line extending from near Cecil Field to near George's Lake. Movement was north-northeast at 5 mph. * Winds in excess of 45 mph possible with these storms. * Locations impacted include... Middleburg, Cecil Field, Doctors Inlet, Lakeside, Oakleaf Plantation, Bellair-Meadowbrook Terrace, Penney Farms, Asbury Lake and Jacksonville Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... These winds can down small tree limbs and branches, and blow around unsecured small objects. Seek shelter in a safe building until the storm passes. To report severe weather, contact your nearest law enforcement agency. You can also share your report with NWS Jacksonville on Facebook and Twitter. && LAT...LON 3030 8175 2983 8173 2980 8194 3029 8191 TIME...MOT...LOC 1906Z 197DEG 17KT 3023 8184 2986 8185 SHASHY
Special weather statement, Jul 3, 3:20 PM EDT, 14 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
320 PM EDT Wed Jul 3 2019
GAZ153-165-032000-
Inland Glynn GA-Inland Camden GA-
320 PM EDT Wed Jul 3 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CAMDEN AND WEST
CENTRAL GLYNN COUNTIES UNTIL 400 PM EDT...
* At 319 PM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm near Woodbine, moving east at 10
mph.
* Winds in excess of 45 mph possible with this storm.
* Locations impacted include...
Woodbine, Waverly and Tarboro.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Jacksonville on
Facebook and Twitter.
&&
LAT...LON 3098 8165 3094 8186 3104 8188 3115 8179
3116 8177 3117 8178 3128 8169 3115 8163
TIME...MOT...LOC 1919Z 267DEG 7KT 3100 8181
SHASHYLocal storm report, Jul 3, 3:32 PM EDT, 2 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 3:02 PM EDT | Special Weather Statement | JAX | Baker | 43 min |
| Jul 3, 3:06 PM EDT | Special Weather Statement | JAX | Clay | 24 min |
| Jul 3, 3:19 PM EDT | Severe Thunderstorm Warning | JAX | Duval | 41 min |
| Jul 3, 3:52 PM EDT | Severe Thunderstorm Warning | JAX | Duval | 38 min |
| Jul 3, 3:58 PM EDT | Heat Advisory | JAX | Alachua, Baker, Bradford, Duval, Flagler, Gilchrist and 4 more | 25 hr |
| Jul 3, 4:04 PM EDT | Areal Flood Advisory | JAX | Duval | 86 min |
| Jul 3, 4:06 PM EDT | Severe Thunderstorm Warning | JAX | Duval, Nassau | 39 min |
| Jul 3, 4:25 PM EDT | Severe Thunderstorm Warning | JAX | Duval | 28 min |
| Jul 3, 4:34 PM EDT | Special Weather Statement | JAX | Nassau | 41 min |
| Jul 3, 4:37 PM EDT | Special Weather Statement | JAX | Putnam | 23 min |
| Jul 3, 4:59 PM EDT | Special Weather Statement | JAX | Putnam | 46 min |
| Jul 3, 5:02 PM EDT | Special Weather Statement | JAX | Saint Johns | 28 min |
| Jul 3, 5:16 PM EDT | Special Weather Statement | JAX | Columbia | 29 min |
| Jul 3, 5:26 PM EDT | Special Weather Statement | JAX | Alachua | 34 min |
| Jul 3, 5:37 PM EDT | Special Weather Statement | JAX | Hamilton | 38 min |
| Jul 3, 5:51 PM EDT | Special Weather Statement | JAX | Columbia | 39 min |
| Jul 3, 5:53 PM EDT | Special Weather Statement | JAX | Gilchrist | 37 min |
| Jul 3, 5:56 PM EDT | Areal Flood Advisory | JAX | Columbia, Hamilton | 2 hr |
| Jul 3, 5:58 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Columbia | 47 min |
| Jul 3, 6:10 PM EDT | Special Weather Statement | JAX | Suwannee | 35 min |
| Jul 3, 6:25 PM EDT | Special Weather Statement | JAX | Union | 35 min |
| Jul 3, 6:39 PM EDT | Special Weather Statement | JAX | Suwannee | 36 min |
| Jul 3, 6:44 PM EDT | Areal Flood Advisory | JAX | Suwannee | 91 min |
| Jul 3, 6:54 PM EDT | Severe Thunderstorm Warning | JAX | Suwannee | 36 min |
| Jul 3, 7:05 PM EDT | Special Weather Statement | JAX | Gilchrist | 40 min |
| Jul 3, 7:25 PM EDT | Special Weather Statement | JAX | Marion | 35 min |
| Jul 3, 7:30 PM EDT | Special Weather Statement | JAX | Suwannee | 30 min |
| Jul 2, 8:27 PM EDT | Special Weather Statement | JAX | Charlton | 33 min |
| Jul 2, 9:24 PM EDT | Special Weather Statement | JAX | Charlton | 36 min |
| Jul 3, 2:06 PM EDT | Special Weather Statement | JAX | Ware | 24 min |
| Jul 3, 2:25 PM EDT | Special Weather Statement | JAX | Brantley | 35 min |
| Jul 3, 2:31 PM EDT | Special Weather Statement | JAX | Ware | 44 min |
| Jul 3, 2:48 PM EDT | Special Weather Statement | JAX | Camden | 27 min |
| Jul 3, 2:56 PM EDT | Special Weather Statement | JAX | Coffee | 34 min |
| Jul 3, 3:20 PM EDT | Special Weather Statement | JAX | Brantley | 40 min |
| Jul 3, 3:47 PM EDT | Special Weather Statement | JAX | Coffee | 43 min |
| Jul 3, 3:49 PM EDT | Special Weather Statement | JAX | Camden | 41 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2019Every severe thunderstorm warning in 2019
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.