A deepening upper level trough across GA and the eastern Gulf of Mexico destabilized the mid and upper levels under prevailing moist WSW flow. This upper forcing in concert with convection along the sea breezes and resultant outflows triggered scattered severe storms in the afternoon and early evening across NE FL.
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 deepening upper level trough across GA and the eastern Gulf of Mexico destabilized the mid and upper levels under prevailing moist WSW flow. This upper forcing in concert with convection along the sea breezes and resultant outflows triggered scattered severe storms in the afternoon and early evening across NE FL.
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 Jun 15, 2:23 PM EST, 2 hours 12 minutes earlier.
Area Forecast Discussion National Weather Service Jacksonville FL 323 PM EDT Thu Jun 15 2017 .NEAR TERM/This afternoon and tonight/... A baggy upper level short-wave trof resides over the Big Bend region that will transition eastward over NE FL and SE GA this late afternoon and tonight. A couple of weak disturbances are noted on water vapor this early afternoon, one near Live Oak, and another over Marianna, FL. As the weak short-wave upper-level trof moves eastward, these respective disturbances will translate to the east as well. The west coast seabreeze has fired off convection mainly west of I-75. Convection initially will develop over St. Johns and Flagler coasts and will spread north over the First Coast along the east coast sea breeze boundary through early afternoon then increase over the interior through the late afternoon with interactions from west coast boundary convection. The respective east coast and west coast have started their push inland. With a mean southwest flow, the sea breeze merger will meet between highway 301 and I-95 this late afternoon. Locally heavy rain and lightning the main concerns given the relatively high PW (1.8-2.1 inches) and surface based capes (2000-2500 J/kg). Showers and thunderstorms will be more numerous over NE Florida where the best moisture resides and more isolated to scattered in nature across the northern tier counties along the Altamaha River Basin. The convection will be mainly diurnally driven, but may see scattered convection through mid to late evening over the NE FL First Coast and southern GA coastal counties with a more southwesterly flow noted through steering levels will help activity drift back toward the east late this afternoon and through the early evening hours. Most convective activity will wind down and push offshore by mid evening. Patches of late night and early morning fog/low clouds possible. During the pre-dawn hours, some light showers may occur across the Suwannee Valley advecting from late nocturnal activity over the Gulf of Mexico. Lows tonight will be mainly in the 70 to 75 degree range. .SHORT TERM.../Friday-Sunday/... Friday...prior fcst thinking has changed little. Fairly deep southwest flow expected, with a mid level low pressure system noted over south GA. This mid level perturbation will lift slowly north to northwest through late Friday night. Moisture levels remain elevated just shy of 2 inches though some pockets of dry mid-upper level air are possible as the mid level low begins to lift northward. West coast sea breeze will likely be active once again but strong convergence expected with the east coast sea breeze as well. We anticipate sct to numerous showers and storms Friday that then begin to dissipate by late evening and overnight. Rain chances generally 40-60 percent. Lows Fri night in the lower 70s with some patchy fog and low stratus possible. Saturday...with the mid level low weaker and its associated trough lifted up into central GA and southwest AL we expect stronger and deeper southwest flow with PWAT values decreased a bit. Not much change overall in the rain chances with sct to numerous showers and storms expected. Fcst rain chances expected to be similar, if not a bit lower than Friday though confidence is a bit below average due to some model differences. Overall areal QPF values should be a little lower as storm motion will be a little faster. Sunday...some drier air in the mid and upper levels expected and deep layer flow turns a bit more southerly. This should enable the east coast sea breeze to push in a little faster, and scattered convection expected to become centered more toward the central parts of the CWA. Given the drier air aloft...we have POPs closer to normal around the 35-50 percent range. Temps expected to be near normal in upper 80s to lower 90s and lows in the lower 70s. .LONG TERM.../MONDAY THROUGH THURSDAY/... Another deep surge of tropical moisture will be in place at the start of the work week with PWATs ranging from 2-2.30 courtesy of a developing low pressure system in the Gulf as well as the remnants of an upper level low centered over the northern Gulf. Although long- term NWP uncertainty still exists with the exact placement of the tropical low pressure, there is moderate confidence that another heavy rainfall setup would develop during the forecast period. 12Z GFS and GEM models are much furthest east and north with the low pressure and provide wetter solutions while the 12Z ECMWF is the further southwest and is therefore drier overall. Current thinking is we will follow more toward the ECMWF model at this time. But, despite the differences in model solutions, a weak cold front stretched southwestward across the Appalachians will assist in steering the enhanced tropical moisture into the area. Max temps are generally below normal and POPS a bit above normal during the period. && .AVIATION... Another round of afternoon scattered storms expected and have VCTS at all terminals with TEMPO for TSRA with intermittent MVFR conditions through the afternoon as some heavy showers are anticipated across the region. Thunderstorms will begin to wane markedly toward sundown with some residual but isolate storms around the I-95 corridor to the coast through 03z. Otherwise, most locations will have VFR conditions this mid to late evening. Patchy low clouds and fog possible during the pre-dawn hours Friday morning and may have ocnl MVFR cigs at GNV and VQQ between 09Z-13Z. && .MARINE... Sfc ridge will remain east and southeast of the area waters maintaining south to southwest flow through Friday except for east coast sea breeze each day. Scattered storms will move offshore during the late afternoon/eve. Slightly stronger southerly flow Friday and Fri night as a sfc trough develops inland over SE GA...increasing local pressure gradient. During the weekend, sfc ridge lifts a little northward with speeds still aob 15 kt. Winds may begin to turn a little more south to southeasterly Sunday through early next week as tropical wave moves through the eastern Gulf/Yucatan. Rip Currents: A moderate risk along the northeast Fl beaches due to a long period swell. && .PRELIMINARY POINT TEMPS/POPS... AMG 72 89 72 90 / 20 60 30 60 SSI 75 86 76 86 / 20 50 40 40 JAX 72 88 72 89 / 30 60 50 60 SGJ 72 87 72 88 / 30 60 40 40 GNV 71 88 70 89 / 30 60 30 50 OCF 71 88 71 89 / 30 60 20 40 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. && Cordero/Shashy/McGinnis
Hazardous Weather Outlook National Weather Service Jacksonville FL 432 AM EDT Thu Jun 15 2017 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-160830- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- Hamilton-Suwannee-Columbia-Baker-Inland Nassau-Inland Duval-Union- Bradford-Clay-St. Johns-Gilchrist-Alachua-Putnam-Flagler-Marion- Coastal Nassau-Coastal Duval-Coffee-Jeff Davis-Bacon-Appling- Wayne-Atkinson-Ware-Pierce-Brantley-Inland Glynn-Coastal Glynn- Echols-Clinch-Charlton-Inland Camden-Coastal Camden- 432 AM EDT Thu Jun 15 2017 ...Locally Heavy Rainfall from Slow Moving Thunderstorms... ...Moderate Risk of Rip Currents Today... This Hazardous Weather Outlook is for Northeast Florida, Southeast Georgia and the Adjacent Coastal Waters. .DAY ONE...Today and Tonight... Slow moving thunderstorms will again cause locally heavy rainfall this afternoon and early evening, with 2 to 4 inch accumulations possible. A few storms may become strong as well with gusty winds and frequent lightning. There is a Moderate Risk of Rip Currents at area beaches today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Scattered to numerous afternoon and evening thunderstorms are expected through the period. The main thunderstorm hazards continue to be locally heavy rainfall, frequent lightning, and gusty winds. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. For additional information, visit the National Weather Service in Jacksonville website on the internet at weather.gov/jax.
Special Weather Statement
National Weather Service Jacksonville FL
444 PM EDT THU JUN 15 2017
GAZ150-152130-
Ware GA-
444 PM EDT THU JUN 15 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WARE COUNTY UNTIL
530 PM EDT...
At 444 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Stephen Foster State Park, moving northeast at 5 mph.
Excessive cloud-to-ground lightning and Wind gusts of 45 to 55 mph
can be expected along with possible minor damage.
This storm will remain over mainly rural areas of southeastern Ware
County.
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.
&&
LAT...LON 3079 8243 3079 8218 3063 8219 3057 8221
3059 8239
TIME...MOT...LOC 2044Z 244DEG 6KT 3068 8233
SHULERPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
448 PM EDT THU JUN 15 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0356 PM TSTM WND DMG 2 E JACKSONVILLE INTL A 30.49N 81.68W
06/15/2017 DUVAL FL EMERGENCY MNGR
MULTIPLE LIGHT POLES DOWN ON THE UPS BUILDING NEAR PECAN
PARK ROAD AND COLE FLYER ROAD. BUILDING SUFFERED
STRUCTURAL DAMAGE.
&&
WCORLESSSpecial Weather Statement
National Weather Service Jacksonville FL
450 PM EDT THU JUN 15 2017
FLZ040-152130-
Marion FL-
450 PM EDT THU JUN 15 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MARION COUNTY UNTIL
530 PM EDT...
At 449 PM EDT, Doppler radar was tracking a strong thunderstorm over
Silver Springs Shores, or 9 miles northwest of The Villages, moving
east at 15 mph.
Nickel size...Excessive cloud-to-ground lightning and Wind gusts of
45 to 55 mph can be expected along with possible minor damage.
Locations impacted include...
Santos, Ocklawaha, Moss Bluff, Silver Springs Shores, Lake Weir,
Belleview and Summerfield.
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.
&&
LAT...LON 2900 8213 2913 8215 2915 8178 2910 8173
2902 8172
TIME...MOT...LOC 2049Z 258DEG 13KT 2907 8202
SHULERSpecial Weather Statement National Weather Service Jacksonville FL 457 PM EDT THU JUN 15 2017 FLZ025-152115- Inland Duval FL- 457 PM EDT THU JUN 15 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL DUVAL COUNTY UNTIL 515 PM EDT... At 456 PM EDT, Doppler radar was tracking a strong thunderstorm near Normandy, or 10 miles west of Jacksonville, moving north at 5 mph. Wind gusts of 40 to 45 mph can be expected along with possible minor wind damage. Locations impacted include... Cisco Gardens, Normandy and Whitehouse Air Field. LAT...LON 3029 8176 3029 8187 3039 8190 3040 8176 TIME...MOT...LOC 2056Z 182DEG 9KT 3032 8183 SHULER
Special Weather Statement
National Weather Service Jacksonville FL
503 PM EDT THU JUN 15 2017
FLZ024-GAZ164-152145-
Inland Nassau FL-Charlton GA-
503 PM EDT THU JUN 15 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN NASSAU AND CENTRAL
CHARLTON COUNTIES UNTIL 545 PM EDT...
At 503 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles northwest of St. George, or 12 miles west of Hilliard, moving
northeast at 20 mph.
Nickel size...Excessive cloud-to-ground lightning and Wind gusts of
45 to 55 mph can be expected along with possible minor damage.
Locations impacted include...
Folkston.
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.
&&
LAT...LON 3074 8187 3058 8212 3063 8220 3078 8215
3079 8215 3083 8214 3082 8195
TIME...MOT...LOC 2103Z 232DEG 15KT 3065 8213
SHULERSpecial Weather Statement
National Weather Service Jacksonville FL
535 PM EDT THU JUN 15 2017
GAZ163-152215-
Clinch GA-
535 PM EDT THU JUN 15 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CLINCH COUNTY UNTIL
615 PM EDT...
At 535 PM EDT, Doppler radar was tracking a strong thunderstorm near
Du Pont, or 7 miles southwest of Homerville, moving northeast at 20
mph.
Wind gusts of 45 to 55 mph can be expected along with possible minor
wind damage.
Locations impacted include...
Homerville and Argyle.
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.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3118 8276 3111 8264 3102 8259 3101 8258
3083 8277 3091 8289
TIME...MOT...LOC 2135Z 222DEG 20KT 3093 8281
SHULERThe Jacksonville radar (KJAX), 52 km away, was scanning. The volume nearest the first event began at 21:34 UTC.
1 thunderstorm wind. Local standard time, as filed.
Trees were blown down near Highway 121 and U.S. Highway 1 and Gardner Road. The time of damage was based on radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2017Every state in 2017This day in weather historyWarnings in Georgia, June 2017
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: 706303.