A frontal boundary across the region and a few showers across South Florida. A brief tornado/ land spout occurred in rural portions of Collier County.
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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 MFL wrote it up.
A frontal boundary across the region and a few showers across South Florida. A brief tornado/ land spout occurred in rural portions of Collier County.
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 Miami, FL wrote its last area forecast discussion before the first event at Nov 22, 4:19 PM EST, 21 minutes earlier.
Area Forecast Discussion National Weather Service Miami FL 419 PM EST Wed Nov 22 2017 .DISCUSSION... Short Term (Tonight-Friday)...a decaying frontal boundary extends across Central Florida, while model data keeps depicting an amplifying mid-level trough over the northern Gulf of Mexico. This trough will send a series of energy impulses across the region, which will enhance shower activity and increase the potential for thunderstorms starting late tonight and into Thursday. The trough will also push an associated front across the area on Friday, supporting convection, gusty winds and periods of heavy rainfall. Models are depicting enhanced thermodynamic parameters, with moderate CAPE, increasing vertical wind shear and PWATS around 1.5 inches. Best dynamics seem to remain over the northern half of the state, however, can not rule out a strong storm or two over South Florida Thursday and Friday. All in all, expect a rather wet Thanksgiving Day with shower and thunderstorm activity continuing through Friday afternoon. Localized brief downpours are possible with the strongest cells. Temperatures remain relatively warm with afternoon highs in the low 80s across much of the area, morning lows in the mid-upper 60s away from the coast, and low 70s near the coastal metro areas. Long Term (Friday night-Tuesday)...models show drier air filtering into the region on Saturday in the wake of the trough/front complex. Remnant moisture could still support some light showers, but mainly in the morning hours. Drier and cooler conditions will spread across the region through early next week with morning lows on Sun and Mon dropping into the low-mid 50s interior and low 60s near the coast. Afternoon highs will struggle to reach 80 over much of the area. && .MARINE...mainly benign weather conditions will prevail across the coastal waters until the front passes later in the week, expect i the vicinity of any heavy shower or thunderstorm that may form Thursday or Friday. A frontal boundary moves across the area Friday, with increasing winds and seas behind it during the weekend likely bringing some hazardous marine conditions. && .AVIATION...Both seabreezes moving inland this afternoon with speeds 8-12kts. Occasional SHRA possible after 20Z, mainly over interior. Approaching system may allow additional SHRA to develop after 02Z, so have included VCSH in most of the TAFs as activity lifts from the south. Light SE winds after 02Z, with MVFR fog a concern again after 06Z. Winds pick up out of the SSE after 14Z 10-15kts with potential for gustiness. SHRA coverage increasing through the day tomorrow with approach of Gulf system. && .PRELIMINARY POINT TEMPS/POPS... West Palm Beach 70 81 67 81 / 40 60 60 50 Fort Lauderdale 72 82 70 82 / 30 50 60 40 Miami 72 82 70 82 / 30 50 60 40 Naples 68 81 68 79 / 10 80 60 40 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && DISCUSSION/MARINE...17/AR AVIATION...AM
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 1051 AM EST Wed Nov 22 2017 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 230400- Lake Okeechobee-Biscayne Bay- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas-Glades-Hendry- Inland Palm Beach-Metro Palm Beach-Coastal Collier-Inland Collier- Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade- Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami- Dade-Far South Miami-Dade- Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM- Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 1051 AM EST Wed Nov 22 2017 ...Moderate Risk of Rip Currents Along the Palm Beaches... ...Isolated Thunderstorms Over the Gulf Waters Overnight... This hazardous weather outlook is for South Florida. .DAY ONE...TODAY AND TONIGHT Rip currents: There is a moderate risk of rip currents along Palm Beach County beaches. Thunderstorms: Isolated thunderstorms will be possible this evening and overnight over the Gulf waters of South Florida. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A developing low pressure system across the Gulf is expected to approach and move across the Florida peninsula Thanksgiving Day and Friday. Scattered to numerous thunderstorms are expected both days with this system, with the potential for hazardous boating conditions Friday and Saturday. Gusty west-southwest winds will also lead to a moderate risk of rip currents along the Gulf beaches on Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami.
The Miami radar (KAMX), 143 km away, was scanning. The volume nearest the first event began at 21:40 UTC.
1 tornado. Local standard time, as filed.
Collier County Sheriff Office reported via a police helicopter a tornado in the Corkscrew area in Collier County. The tornado was brief and stayed in an open field with no damage reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2017Every state in 2017This day in weather historyThe tornado archive for Florida, 2017Warnings in Florida, November 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: 723912.