Alert archive / Florida / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 69, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 4, 2019, 4:12 PM EDT for Putnam County, Florida. It was in force for 24 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
- Jun 4, 2019, 4:12 PM EDT (20:12 UTC)
- Expired
- Jun 4, 2019, 4:36 PM EDT
- In force
- 24 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Putnam County, FL
The radar
The Jacksonville radar (KJAX), 97 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 99 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
- 802 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 1483 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Jun 4, 2:35 PM EDT, 1 hour 37 minutes earlier.
Area forecast discussion, Jun 4, 2:35 PM EDT, 1 hour 37 minutes before
Area Forecast Discussion National Weather Service Jacksonville FL 235 PM EDT Tue Jun 4 2019 .NEAR TERM.../thru Wednesday/... Upper ridge continues across southeastern U.S., with a weak shortwave moving ESE across GA/SC this afternoon and Tonight. Surface trough extends near FL/GA border with deeper convection and isolated showers S of trough. Sea breezes are moving well inland...with faster westward movement of east coast sea breeze further S where low-level winds are weaker and more southerly. Hi-res model guidance suggests main convective threat over eastern GA counties with a minimum in precipitation coverage over north- central FL... somewhat opposite of what radar trends have been showing. Will go with an evolution with widely scattered showers/t-storms along the boundaries as seen on satellite...with greater coverage developing interior areas as sea breezes come together and merge with surface trough through 00z. Gudance does suggest convection may hang around through at least 06z...so will be fairly slow to diminish precipitation coverage through the evening. Environment is favorable for cold downdrafts and 40-60mph downburst winds from more intense cells that develop. Best chance for strong/isolated severe will be along and just E of east coast sea breeze where dew points (and thus instability) will be higher and deep layer shear a bit stronger...30-35 kts. Low temperature forecast Tonight is supported by latest consensus guidance. For Wednesday...Upper ridge is maintained over the area...with another possible short wave moving across SC/GA...could again see scattered afternoon showers/t-storms...with greater coverage se GA compared to ne FL. Consensus guidance supports high temperatures in the upper 80s coast...lower 90s I-95 corridor... mid 90s further inland. .SHORT TERM.../Wednesday Night thru Thursday night/... Upper ridge continues over the area Thursday as upper level system moves over Southern Plains...then begins to break down Thursday night as upper-level system moves eastward toward the western Gulf Coast region. Expecting scattered sea breeze showers/t-storms with greatest coverage during the afternoon...but continuing thru the evening. Temperatures will remain a little above normal. .LONG TERM.../Friday thru Monday/... Pattern changes during this period as upper system moves ENE across Gulf Coast and TN Valley regions through the weekend... becoming more of an open upper trough moving eastward across the Southeastern U.S. late Sunday and Monday. This should lead to a period of not-as-hot temperatures and increased rain chances. Model blend suggests 80-90 POP by Sun/Mon, but uncertainty of pattern evolution leads me to reduce that some to the 50-60 percent range. Near or slightly above normal temperatures are expected during this period. && .AVIATION... Scattered showers and storms were developing across northeast Florida early this afternoon south of a frontal boundary near the FL/GA border. Showers and storms will impact many of the TAF sites this afternoon into the early evening, with restrictions likely. Gusty winds with wind shifts are expected due to outflow boundaries from storms. The overall wind flow will be out of the southeast at 10-15 knots with higher gusts at KSGJ and KSSI. && .MARINE...High pressure will remain east of the waters, while a weak surface trough remains over southern GA. The result will be light to moderate south to southwest flow and low seas through the week. Rip Currents: Low risk Wed se GA, moderate risk ne FL. && .PRELIMINARY POINT TEMPS/POPS... AMG 71 95 72 92 / 70 50 30 50 SSI 77 88 77 89 / 40 20 20 40 JAX 73 93 74 93 / 40 30 10 50 SGJ 74 88 74 89 / 20 20 10 40 GNV 71 94 72 93 / 40 30 10 30 OCF 71 94 72 92 / 50 30 20 30 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. && Wolf/Kennedy/Bricker
In the hours before
Special weather statement, Jun 4, 3:29 PM EDT, 43 minutes before
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</html>Special weather statement, Jun 4, 3:34 PM EDT, 38 minutes before
Special Weather Statement National Weather Service Jacksonville FL 334 PM EDT Tue Jun 4 2019 FLZ025-125-042015- Inland Duval FL-Coastal Duval FL- 334 PM EDT Tue Jun 4 2019 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL DUVAL COUNTY UNTIL 415 PM EDT... * At 333 PM EDT, National Weather Service meteorologists were tracking a strong thunderstorm over Riverside, or over Jacksonville, moving southeast at 10 mph. * Small hail, winds in excess of 45 mph, and minor flooding due to heavy rainfall is possible with this storm. * Locations impacted include... Jacksonville, Arlington, Normandy, Riverside, San Marco and Tallyrand. 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 8177 3041 8174 3038 8155 3026 8159 TIME...MOT...LOC 1933Z 295DEG 8KT 3034 8169 23
Special weather statement, Jun 4, 3:45 PM EDT, 27 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
345 PM EDT Tue Jun 4 2019
GAZ136-042030-
Wayne GA-
345 PM EDT Tue Jun 4 2019
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL WAYNE COUNTY UNTIL 430 PM
EDT...
* At 344 PM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm over Gardi. This storm was nearly
stationary.
* Penny size hail and wind gusts of 50 to 55 mph possible with this
storm.
* Locations impacted include...
Jesup, Gardi, Doctortown and Broadhurst.
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.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
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 3165 8182 3166 8181 3165 8180 3163 8179
3163 8177 3161 8177 3161 8175 3160 8175
3161 8174 3158 8170 3156 8170 3154 8167
3151 8166 3149 8164 3143 8195 3157 8194
3169 8186
TIME...MOT...LOC 1944Z 239DEG 3KT 3154 8182
MCGINNISLocal storm report, Jun 4, 4:06 PM EDT, 6 minutes before
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</html>Special weather statement, Jun 4, 4:08 PM EDT, 4 minutes before
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</html>Local storm report, Jun 4, 4:11 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
411 PM EDT TUE JUN 4 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0315 PM HAIL MANDARIN 30.15N 81.64W
06/04/2019 E0.50 INCH DUVAL FL BROADCAST MEDIA
HAIL ESTIMATED TO BE AROUND HALF INCH IN THE MANDARIN
AREA. TIME GIVEN BASED ON RADAR.
&&
PPETERSThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 2:10 PM EDT | Special Weather Statement | JAX | Duval | 35 min |
| Jun 4, 2:20 PM EDT | Special Weather Statement | JAX | Nassau | 25 min |
| Jun 4, 2:39 PM EDT | Special Weather Statement | JAX | Nassau | 51 min |
| Jun 4, 2:52 PM EDT | Special Weather Statement | JAX | Duval | 38 min |
| Jun 4, 3:00 PM EDT | Severe Thunderstorm Warning | JAX | Nassau | 45 min |
| Jun 4, 3:03 PM EDT | Special Marine Warning | JAX | 87 min | |
| Jun 4, 3:11 PM EDT | Special Weather Statement | JAX | Saint Johns | 49 min |
| Jun 4, 3:29 PM EDT | Special Weather Statement | JAX | Bradford | 46 min |
| Jun 4, 3:34 PM EDT | Special Weather Statement | JAX | Duval | 41 min |
| Jun 4, 4:08 PM EDT | Special Weather Statement | JAX | Putnam | 52 min |
| Jun 4, 4:23 PM EDT | Special Weather Statement | JAX | Marion | 52 min |
| Jun 4, 4:27 PM EDT | Special Weather Statement | JAX | Marion | 48 min |
| Jun 4, 5:15 PM EDT | Special Weather Statement | JAX | Putnam | 45 min |
| Jun 4, 5:17 PM EDT | Special Weather Statement | JAX | Marion | 43 min |
| Jun 4, 5:23 PM EDT | Severe Thunderstorm Warning | JAX | Marion | 52 min |
| Jun 4, 5:29 PM EDT | Special Weather Statement | JAX | Baker | 46 min |
| Jun 4, 6:02 PM EDT | Special Weather Statement | JAX | Alachua | 43 min |
| Jun 4, 6:33 PM EDT | Special Weather Statement | JAX | Alachua | 42 min |
| Jun 4, 6:48 PM EDT | Areal Flood Advisory | JAX | Alachua | 3 hr |
| Jun 4, 7:20 PM EDT | Areal Flood Advisory | JAX | Alachua, Marion | 3 hr |
| Jun 4, 2:34 PM EDT | Special Weather Statement | JAX | Camden | 41 min |
| Jun 4, 2:41 PM EDT | Special Weather Statement | JAX | Wayne | 49 min |
| Jun 4, 2:43 PM EDT | Special Weather Statement | JAX | Brantley | 47 min |
| Jun 4, 3:09 PM EDT | Severe Thunderstorm Warning | JAX | Camden | 36 min |
| Jun 4, 3:13 PM EDT | Severe Thunderstorm Warning | JAX | Wayne | 32 min |
| Jun 4, 3:31 PM EDT | Severe Thunderstorm Warning | JAX | Wayne | 29 min |
| Jun 4, 3:45 PM EDT | Special Weather Statement | JAX | Wayne | 45 min |
| Jun 4, 3:54 PM EDT | Severe Thunderstorm Warning | JAX | Wayne | 36 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.