A deep layer ridge axis was across the forecast which limited convective development compared to recent days. A couple of isolated strong storms developed during the late afternoon and early evening which produced strong wind gusts.
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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 deep layer ridge axis was across the forecast which limited convective development compared to recent days. A couple of isolated strong storms developed during the late afternoon and early evening which produced strong wind gusts.
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 5, 1:34 PM EST, 2 hours 6 minutes earlier.
Area Forecast Discussion National Weather Service Jacksonville FL 234 PM EDT Wed Jul 5 2017 .NEAR TERM /Through Thursday/... Scattered storms have developed on the Gulf coast sea breeze in the Big Bend region to the west and southwest of Gainesville and isolated showers have developed near Baxley and across Marion County. Showers and storms will continue to develop across the interior towards I-75 through the afternoon and into the early evening before dissipating. There is a little more instability aloft compared to yesterday, and some storms could become strong with gusty winds and frequent lightning the main impacts. Temperatures were mainly in the low to mid 90s across the region, and expect heat indices in the 102-108F range to continue this afternoon. Overnight lows will be muggy with temperatures in the 70s. 500mb ridge axis will remain centered a couple hundred miles east of the region through Thursday, with the ridge axis extending across the Florida/Georgia border. The low/mid level ridge axis across north central Florida today will move northward across northeast Florida on Thursday. Models indicate as the ridge shifts northward that drier air will move into north central and portions of northeast Florida on Thursday, with precipitable water values of 1.5 inches or less. This will lead to mainly dry conditions southeast of a line from Gainesville to St. Augustine. The Gulf coast sea breeze will move inland, with scattered showers and storms moving into the Big Bend area after 18Z, with storms pushing inland of the Suwannee River basin around 20-21Z. Isolated to scattered storms are then forecast to develop along I-10 northward between 21-00Z as moisture rotates northeastward from the Gulf. Afternoon temperatures will be hot once again, with highs in the 90s and heat indices of 102-108F. .SHORT TERM....Thu night through Sat... Above normal warmth and below normal rain chances will continue with the 1000-700 mb ridge axis lingering across the forecast area through Fri. The presence of this ridge axis will continue to suppress convective growth and the dry mid level air will limit convective converge of diurnally enhanced sea breeze and airmass triggered thunderstorms. Thu evening sea breeze convection will fade across inland areas, west of Highway 301. On Friday, the surface ridge axis settles farther south as a lee side trough deepens down the Appalachians ahead of an approaching surface front. This pattern transition will bring a stronger west coast sea breeze front across the local area and focus the highest rain chances east of Highway 301 where sea breezes and outflows converge in the late afternoon and evening. Sat deeper moisture settles across SE Georgia in advance of the approaching surface front with rainfall expected increasing in coverage through the day across SE Georgia along this moisture axis. Addition convection will begin to develop along the sea breezes across NE Florida, although expect more limited coverage due to drier air. Once again a stronger west coast sea breeze will focus the strongest convergence west of Highway 301 Saturday afternoon and evening. There is the potential for a few strong to isolated severe storms each afternoon and evening with wet downbursts the primary hazard. Temperatures will trend above normal with highs in the low/mid 90s with heat index values 100-105 degrees. Muggy conditions will continue at night with low temperatures ranging generally in the 70s, although a few inland locations could realize upper 60s Fri and Sat morning. .LONG TERM...Sun through Wed... An extended period of above normal rain chances with moist SW steering flow across the local area between a mean layer trough upstream across the eastern Gulf Coast region and high pressure extending across south Florida. PWAT values range near 1.8 to 2 inches each day with a more dominant west coast sea breeze triggering convection and a weak frontal zone stalling and become diffuse across SE GA through Tue. Late Tue into Wed the Bermuda ridge across the Atlantic begins to retrograde westward over central Florida, which will increase subsidence and lower rain chances back near climo values with flow transition to SSE and a slightly more dominant east coast sea breeze. Temperatures will trend more toward climo values with an increase in cloud cover and precip with max values in the lower 90s and low temperatures above normal in the 70s. && .AVIATION... Prevailing VFR conditions through the period. Storms may develop near KGNV late this afternoon into the evening, and left the VCTS and TEMPO groups. An isolated shower/storm could get near KVQQ, but left out of TAF. East to southeast winds 10 knots will prevail this afternoon, with light and variable winds overnight. && .MARINE... Surface ridge of high pressure will remain just south of our waters, maintaining southerly 10-15 kt winds and 2-4 ft seas through the week. A weak cold front will move into the southeast states late in the weekend. This feature and increased westerly flow aloft may bring higher chance of thunderstorms to area coastal waters Friday through Sunday. Rip Currents: Low risk of rip currents through Thursday. && .PRELIMINARY POINT TEMPS/POPS... AMG 74 96 75 95 / 30 30 20 20 SSI 79 92 78 92 / 0 10 10 20 JAX 75 96 76 94 / 0 10 10 20 SGJ 74 91 77 91 / 0 10 10 20 GNV 73 95 74 94 / 30 20 20 30 OCF 74 95 74 93 / 30 20 20 30 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. && Kennedy/Enyedi/Corless
Hazardous Weather Outlook National Weather Service Jacksonville FL 442 AM EDT Wed Jul 5 2017 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-060845- 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- 442 AM EDT Wed Jul 5 2017 ...HIGH HEAT INDICES AGAIN TODAY... This Hazardous Weather Outlook is for Northeast Florida, Southeast Georgia and the Adjacent Coastal Waters. .DAY ONE...Today and Tonight... High temperatures in the mid to upper 90s this afternoon combined with the humidity will create heat index values up to 102 to 108 degrees. Isolated to scattered thunderstorms are expected this afternoon and early evening. The highest thunderstorm chances will be across inland northeast Florida counties, between 3 pm and 8 pm. Strong gusty winds...frequent lightning and heavy downpours will be possible in the strongest thunderstorms. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Isolated to scattered thunderstorms are expected Thursday through Friday in the afternoon and evening hours. An increased threat of thunderstorms is expected Saturday through Tuesday. Locally heavy rainfall...strong gusty winds...and frequent lightning will be possible in the strongest thunderstorms. High temperatures in the lower to mid 90s combined with the humidity will create heat index values of 100 to 106 degrees. .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 413 PM EDT WED JUL 5 2017 FLZ040-052045- Marion FL- 413 PM EDT WED JUL 5 2017 ...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL MARION COUNTY UNTIL 445 PM EDT... At 412 PM EDT, Doppler radar was tracking a strong thunderstorm near Ocala Airport, or near Ocala, moving west at 20 mph. Wind gusts of 40 to 50 mph can be expected along with possible minor wind damage. Heavy downpours and small hail are also possible. Locations impacted include... Ocala, Ocala Airport and Lowell. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Jacksonville. && LAT...LON 2909 8240 2936 8240 2934 8212 2914 8210 TIME...MOT...LOC 2012Z 105DEG 15KT 2922 8220 ZIBURA
Special Weather Statement National Weather Service Jacksonville FL 417 PM EDT WED JUL 5 2017 FLZ031-052045- Bradford FL- 417 PM EDT WED JUL 5 2017 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL BRADFORD COUNTY UNTIL 445 PM EDT... At 417 PM EDT, Doppler radar was tracking a strong thunderstorm near Starke, moving west at 10 mph. Nickel size hail and Wind gusts of 40 to 50 mph can be expected along with possible minor damage. Locations impacted include... Starke, Sampson and Hampton. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Jacksonville. && LAT...LON 3000 8207 2984 8208 2986 8227 3002 8224 TIME...MOT...LOC 2017Z 081DEG 10KT 2990 8210 ZIBURA
The Jacksonville radar (KJAX), 82 km away, was scanning. The volume nearest the first event began at 20:37 UTC.
1 thunderstorm wind. Local standard time, as filed.
Several trees were blown down near County Road 18 along both sides of U.S. Highway 301 in Hampton. A few trees feel onto power lines. The cost of damage was estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2017Every state in 2017This day in weather historyWarnings in Florida, July 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: 707456.