A prevailing SW flow produced a stronger west coast sea breeze that converged with the east coast sea breeze toward the Atlantic coast into the afternoon and evening. Lingering outlflow boundaries also served as convective foci across the area over a moist and unstable airmass.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS JAX wrote it up.
A prevailing SW flow produced a stronger west coast sea breeze that converged with the east coast sea breeze toward the Atlantic coast into the afternoon and evening. Lingering outlflow boundaries also served as convective foci across the area over a moist and unstable airmass.
The local office's own words before the first event, 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 the first event at Jul 15, 1:24 PM EST, 1 hour 36 minutes earlier.
Area Forecast Discussion National Weather Service Jacksonville FL 224 PM EDT Mon Jul 15 2024 ...New SYNOPSIS, NEAR TERM, SHORT TERM, LONG TERM, MARINE... .SYNOPSIS... Issued at 203 PM EDT Mon Jul 15 2024 Afternoon surface analysis depicts the axis of Atlantic high pressure (1024 millibars) extending its axis across the FL peninsula and into the southeastern Gulf of Mexico. Aloft...ridging was centered off FL's Atlantic coast, or just north of the northwestern Bahamas, while troughing was progressing eastward across the eastern Great Lakes, Ohio and Tennessee Valleys. Meanwhile, a leftover Mesoscale Convective Vortex (MCV) from widespread thunderstorm activity that occurred last evening along the Interstate 4 corridor in central FL was spinning over the Nature Coast, and this feature was activating scattered convection along the Gulf coast sea breeze along the I-75 corridor as the U.S. Highway 84 corridor across inland southeast GA, especially between Waycross and Jesup. Isolated convection was also developing early this afternoon along other mesoscale boundaries such as the St. Johns River breeze. Latest GOES-East derived Total Precipitable Water imagery indicates that deep moisture remains in place throughout our region, with PWATS in the 1.9 - 2.2 inch range. Outside of thunderstorm activity, temperatures at 18Z have soared to the low and mid 90s away from the immediate coast, with dewpoints in the low to mid 70s creating heat index values that generally ranged from the upper 90s to around Heat Advisory criteria (108 degrees). && .NEAR TERM... Issued at 203 PM EDT Mon Jul 15 2024 For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf The presence of deep tropical moisture and the aforementioned MCV feature will trigger scattered to numerous thunderstorms this afternoon. Southwesterly low level flow will tend to slow the inland progress of the Atlantic sea breeze this afternoon, setting up a collision of outflow boundaries and eventually the Atlantic and Gulf coast sea breezes for locations between U.S. Highway 301 and Interstate 95 during the late afternoon. Storms may pulse as mesoscale boundaries collide, with stronger activity being capable of producing downburst winds of 40-50 mph, frequent lightning strikes, and locally heavy downpours. Steering flow will remain light, resulting in slow moving storms that could result in localized flooding, especially if activity moves slowly or back-builds over urban or normally flood prone locations. Outflow boundaries will also migrate northward across inland southeast GA this afternoon, where convection may linger past sunset tonight. Debris cloudiness from this afternoon and evening's convection will gradually thin out overnight, with lows mostly falling to the mid 70s inland, ranging to around 80 at coastal locations. && .SHORT TERM... (Tuesday through Wednesday night) Issued at 203 PM EDT Mon Jul 15 2024 The region will be between high pressure to the east, and troughing to the northwest this period. This pattern will yield a prevailing southwest flow. This flow will keep the east coast sea breeze pinned close to shore through much of the afternoons. Convection will initiate Tuesday and Wednesday early afternoon inland on the Gulf sea breeze. This activity will then spread inland through the afternoons, then interact with the east coast sea breeze near the I95 corridor. Convection will dissipate during the evening hours with loss of diurnal heating. Temperatures will be above normal this period. && .LONG TERM... (Thursday through next Monday) Issued at 203 PM EDT Mon Jul 15 2024 Early this period high pressure ridge will be centered to the east, with troughing to the northwest. This pattern will continue the prevailing flow from the southwest, with storms initiating early in the afternoon well inland on the Gulf sea breeze, then spreading across area through the afternoon hours, with a collision with east coast breeze around I95 mid to late afternoon. Convection will dissipate each afternoon with loss of diurnal heating. Highs through Friday will remain above normal. The high will build more toward the east northeast over the weekend into early next week. With the change in pattern, the flow will transition from the south on Saturday to from the southeast Sunday and Monday. With the flow more from the south then southeast, the east coast sea breeze will active earlier in the afternoons, with this activity pushing inland during the afternoons. So by Monday, the mid to late afternoons over eastern zones will be largely dry. Temperatures will be closer to seasonal levels from Saturday through Monday. && .AVIATION... (18Z TAFS) Issued at 156 PM EDT Mon Jul 15 2024 Strong thunderstorms will likely impact the GNV terminal through around 20Z, with the potential for brief wind gusts in excess of 30 knots and IFR conditions during heavier downpours. Activity should then focus near or over the rest of the northeast FL terminals and SSI, where TEMPO groups were placed at each TAF site, generally between 19Z and 00Z. Periods of IFR conditions and gusty winds are expected at the Duval County terminals, SSI, and SGJ as this slow moving activity persists through around sunset before diminishing in coverage early this evening. Periods of MVFR visibilities are likely overnight at VQQ. Outside of thunderstorm activity, southeasterly surface winds will remain sustained at 10-15 knots at the SSI and SGJ coastal terminals through around 23Z. Surface winds will then shift to southerly after convection ends around or shortly after sunset, with surface speeds diminishing to around 5 knots by 06Z at the coastal terminals and less than 5 knots inland. Surface winds will then shift to southwesterly shortly after sunrise, with sustained speeds increasing to 5-10 knots by 15Z Tuesday. && .MARINE... Issued at 203 PM EDT Mon Jul 15 2024 The axis of Atlantic high pressure will stretch across the Florida peninsula through midweek, keeping a prevailing southerly wind flow in place across our local waters. A few strong thunderstorms will be possible late this afternoon and early this evening, mainly over the near shore waters, with stronger storms being capable of producing briefly strong wind gusts, heavy downpours, and frequent lightning strikes. Outside of thunderstorm activity, southerly winds will surge this evening before shifting to southwesterly and weakening after midnight. A similar weather pattern will prevail on Tuesday, followed by Atlantic high pressure sinking southward later this week as a frontal boundary enters the southeastern states. Seas of 3-5 feet will prevail both near shore and offshore through Tuesday night. Mainly afternoon and evening thunderstorms will increase in coverage throughout our local waters later this week as this boundary stalls to the northwest of our local waters. Seas will diminish to 2-4 feet throughout our local waters towards midweek. Rip Currents: A persistent east-southeasterly ocean swell will combine with breezy onshore winds during the afternoon hours to create a moderate rip current risk at all area beaches through at least midweek. && .PRELIMINARY POINT TEMPS/POPS... AMG 76 95 75 95 / 40 60 20 70 SSI 80 92 79 93 / 50 50 40 60 JAX 75 95 76 96 / 70 70 30 70 SGJ 77 94 77 94 / 40 70 30 60 GNV 74 94 73 93 / 60 80 20 80 OCF 74 95 75 93 / 40 90 30 80 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...Heat Advisory until 6 PM EDT this evening for FLZ124-125-133-138. GA...Heat Advisory until 6 PM EDT this evening for GAZ154-166. AM...None. &&
Special Weather Statement
National Weather Service Jacksonville FL
259 PM EDT Mon Jul 15 2024
GAZ133-151930-
Jeff Davis GA-
259 PM EDT Mon Jul 15 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN JEFF DAVIS COUNTY
THROUGH 330 PM EDT...
At 259 PM EDT, Doppler radar was tracking a strong thunderstorm over
Hazlehurst, moving north at 15 mph.
HAZARD...Wind gusts around 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Hazlehurst.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3196 8252 3195 8249 3196 8248 3196 8247
3177 8258 3182 8268 3192 8268 3192 8265
3193 8263 3193 8262 3194 8260 3193 8259
3196 8256
TIME...MOT...LOC 1859Z 184DEG 12KT 3186 8263
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KBSpecial Weather Statement
National Weather Service Jacksonville FL
305 PM EDT Mon Jul 15 2024
FLZ422-522-151930-
Southeastern Columbia FL-Southwestern Columbia FL-
305 PM EDT Mon Jul 15 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL COLUMBIA COUNTY
THROUGH 330 PM EDT...
At 305 PM EDT, Doppler radar was tracking a strong thunderstorm near
Providence, or 10 miles northeast of Ichetucknee Spring, moving north
at 10 mph.
HAZARD...Wind gusts around 40 mph and excessive cloud-to-ground
lightning.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Excessive cloud-to-ground lightning is
occurring.
Locations impacted include...
Columbia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3003 8254 2998 8265 3010 8272 3015 8254
TIME...MOT...LOC 1905Z 166DEG 7KT 3003 8261
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KBSpecial Weather Statement
National Weather Service Jacksonville FL
317 PM EDT Mon Jul 15 2024
GAZ153-154-152000-
Inland Glynn GA-Coastal Glynn GA-
317 PM EDT Mon Jul 15 2024
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL GLYNN COUNTY THROUGH 400
PM EDT...
At 317 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles southwest of Darien, moving northeast at 10 mph.
HAZARD...Wind gusts around 40 mph, excessive cloud-to-ground
lightning, and minor flooding due to heavy rainfall.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Excessive cloud-to-ground lightning is
occurring. Minor flooding due to heavy rainfall is
possible.
Locations impacted include...
Country Club Estates and Boys Estate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3119 8137 3126 8168 3141 8158 3136 8152
3133 8145 3133 8144 3131 8144 3131 8142
3129 8141 3128 8139 3129 8139 3128 8138
3130 8137 3130 8134 3131 8134 3128 8132
TIME...MOT...LOC 1917Z 213DEG 8KT 3131 8152
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KBPreliminary Local Storm Report
National Weather Service Jacksonville FL
323 PM EDT Mon Jul 15 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0250 PM Tstm Wnd Gst 1 NNE Jesup 31.61N 81.88W
07/15/2024 M45 MPH Wayne GA Mesonet
Mesonet station GA355 Us 341 At Sr 38.
&&
ACSpecial Weather Statement
National Weather Service Jacksonville FL
350 PM EDT Mon Jul 15 2024
GAZ153-154-165-166-152030-
Inland Glynn GA-Inland Camden GA-Coastal Glynn GA-Coastal Camden GA-
350 PM EDT Mon Jul 15 2024
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL CAMDEN AND SOUTHERN
GLYNN COUNTIES THROUGH 430 PM EDT...
At 349 PM EDT, Doppler radar was tracking a strong thunderstorm
capable of producing a landspout near Brunswick, moving south at 20
mph.
HAZARD...Landspouts and wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible. Gusty winds
could knock down tree limbs and blow around unsecured
objects.
Locations impacted include...
Brunswick, St. Simons Island, Woodbine, Dock Junction, Sea Island,
Jekyll Island, St Simons Island Village, Country Club Estates, High
Point, and Harrietts Bluff.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3111 8135 3110 8137 3101 8138 3079 8145
3084 8176 3126 8167 3118 8133
TIME...MOT...LOC 1949Z 010DEG 16KT 3111 8155
LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
KBSpecial Weather Statement
National Weather Service Jacksonville FL
354 PM EDT Mon Jul 15 2024
FLZ140-240-152030-
Central Marion FL-Eastern Marion FL-
354 PM EDT Mon Jul 15 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL MARION COUNTY
THROUGH 430 PM EDT...
At 354 PM EDT, Doppler radar was tracking a strong thunderstorm over
Silver Springs Shores, or 9 miles southwest of Lynne, moving north at
5 mph.
HAZARD...Wind gusts around 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Silver Springs Shores and Belleview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2903 8196 2904 8209 2918 8204 2917 8188
TIME...MOT...LOC 1954Z 198DEG 6KT 2908 8202
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KBThe Jacksonville radar (KJAX), 86 km away, was scanning. The volume nearest the first event began at 20:00 UTC.
2 thunderstorm wind. Local standard time, as filed.
Trees were blown down across the county. Damage was sporadic.
Power poles were knocked down E-SE of Folkston. | Over 1000 electric customers were reported | without power. The cost of damage was unknown, but it was estimated for inclusion of the event in Storm Data.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2024Every state in 2024This day in weather historyWarnings in Georgia, July 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1192690, 1192691.