Higher than normal astronomical tides associated with the new moon phase caused coastal flooding along portions of the east coast. This flooding was related to salt water inundation with sea water over-topping sea walls, docks, boat ramps and coming up out of storm drains.
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The episode as NWS MFL wrote it up.
Higher than normal astronomical tides associated with the new moon phase caused coastal flooding along portions of the east coast. This flooding was related to salt water inundation with sea water over-topping sea walls, docks, boat ramps and coming up out of storm drains.
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 Sep 27, 7:02 AM EST, 58 minutes earlier.
Area Forecast Discussion National Weather Service Miami FL 802 AM EDT Fri Sep 27 2019 .AVIATION... VFR conditions are forecast at all TAF sites throughout the period with easterly to northeasterly flow. Atlantic sea breeze forecast to develop and push W/SW this afternoon, where cumulus cloud development and isolated convection will be favored. Gulf breeze may develop thereafter, briefly shifting winds to westerly direction at KAPF and focusing convection in the southwestern interior portions of the peninsula. && .PREV DISCUSSION... /issued 327 AM EDT Fri Sep 27 2019/ DISCUSSION... The overall weather pattern is beginning to change for South Florida. A mid to upper level cold core low is over the Bahamas, and the 500mb ridge over the Eastern US is breaking down. The surface high to the north, is building to the east, and should set up over the western Atlantic for a couple of days, before breaking down and being replaced with a surface high over the eastern US. Looking at last nights sounding, the PWATs are extremely low for the time of year, coming in just over 1 inch. Today should begin to see this trending upward, but it could be a slow process, as we are on the subsidence side of the low over the Bahamas. Even so, models are indicating the easterly wind should start to increase today, and begin to advect in some moisture. This may allow for a few showers to develop in the southern interior, especially along the Gulf coast, south of Everglades City and Chokoloskee. As the weekend progresses, the low over the Bahamas will move off to the northeast, and a 500mb ridge will rebuild over the southeast US. The surface pressure gradient is progged to increase over the weekend, causing the wind to increase across the area, and bring breezy conditions back to South Florida by the end of the weekend. PoPs, on the other hand, will slowly trend upward, mainly in coverage of slight chance for the weekend, then increase in likelihood as well for next week. Looking at the 1000mb-500mb thickness, the gradient becomes east-west behind the exiting low, while the pressure gradient is increasing south to north. This would indicate some isentropic lift may come into play next week, at least the first part of the week. This would further enhance the chance and coverage of showers for the area. This may also indicate more showery conditions, with only a few thunderstorms. Looking ahead into the middle of next week, models are indicating there could be a TUTT cutoff low that undercuts a 250mb ridge over the eastern US, bringing a cold core area of low pressure back to the region. This TUTT low should bring enough shear to the area to keep the remnants of Karen from redeveloping in the area, and keep the moisture passage as just an area of increased rainfall for the mid and later half of the week. It is this tropical wave that finally brings a decent chance of rain back to South Florida for Wednesday into Thursday. Even then have kept PoPs at chance level as there is still uncertainty this far out. The other interesting feature of the pattern for the next week are the dew points. Models slow bring the dew points back into the low 70s and then only bring them back to the mid 70s as the tropical moisture comes across, then drops the dew points back into the low 70s to around 70 late next week. MARINE... Conditions for the local waters start off fairly benign today, but the wind begins to pick up by the end of the afternoon, which will cause seas to begin to build. High pressure builds to the northeast, as the pressure gradient increases. this will cause the wind to continue to increase in speed through the weekend, and into next week. This could bring hazardous conditions to small craft within the next couple of days, which would persist through at least most of next week. Seas are forecast to slowly build over the weekend, with the Atlantic waters seeing seas in excess of 5 feet by Monday morning, particularly in the Gulf Stream. Also, the chances of showers and perhaps a few thunderstorms begin to be introduced back into the forecast, trending upward each day, with the best chances of rain coming for the middle and latter half of next week. BEACH FORECAST... The main concern for the beaches through the beginning of next week are the spring tides. Currently, they are running around 1.2 feet above predicted levels. With the new moon occurring on the 29th, the tides should continue to increase and may cause minor coastal flooding, mainly by way of ponding of water on roadways and in parking lots. however, with the increase in wind speeds by the beginning of the week, this could cause the tide to be more significant. The risk of rip currents would also increase over the weekend, and remain enhanced through the week. For now, a Coastal Flood Statement has been issued for awareness of the spring tides through at least Tuesday. && .PRELIMINARY POINT TEMPS/POPS... West Palm Beach 87 76 88 77 / 10 10 20 10 Fort Lauderdale 87 79 88 78 / 10 10 20 20 Miami 88 78 90 78 / 10 10 20 10 Naples 90 73 91 73 / 10 10 20 10 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && DISCUSSION...13 MARINE...13 AVIATION...18/Weinman/02/RAG BEACH FORECAST...13
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 421 AM EDT Fri Sep 27 2019 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 272030- 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- 421 AM EDT Fri Sep 27 2019 ...Moderate Risk of Rip Currents for all Atlantic Beaches... ...Minor Coastal Flooding Possible along the Atlantic coast... This hazardous weather outlook is for South Florida. .DAY ONE...TODAY AND TONIGHT Rip currents: There is a moderate risk of rip currents for all Atlantic Beaches today. Coastal Flooding: sensitive and low-lying locations along the Atlantic coast may experience minor flooding near the times of high tides. Expect some water ponding on roadways and in parking lots. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Thunderstorm activity will increase late this weekend into early next week over South Florida due to return of tropical moisture to the area. Primary impacts will be lightning strikes. Higher than normal tides will be possible this weekend and continuing through early next week. Minor coastal flooding will be possible during high tides throughout this time frame. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami.
The national radar mosaic for the moment the first event began.
4 coastal flood, 1 astronomical low tide. Local standard time, as filed.
A member of the public reported minor coastal flooding around the time of high tide on low-lying coastal roads near State Road A1A in Broward County this morning.
Multiple reports of coastal flooding during high tide across coastal Miami-Dade County. These include intersections at different neighborhoods, Brickell, Matheson Hammock, and Miami Beach. A few inches to up to a foot of standing water was observed across Coastal Miami-Dade.
Tidal flooding observed near the high tide in the following locations: NE Miami at the intersection of NE 10 Avenue and NE 81 Street with water as much as 8-10 inches deep in parts of the intersection; Matheson Hammock Park with as much as 4-6 inches of water covering the parking lot; and Brickell Bay Drive and SE 12 Street with water a few inches deep.
Flooding of streets and waterfront parking lots during high tide in Hollywood, mainly along Ocean Drive and the Intracoastal Waterway.
Also, flooding of streets during high tide in the neighborhoods along and near East Las Olas Boulevard and Cordova Road in Fort Lauderdale. Water was in front yards and encroached on a few homes in this area.
Standing water less than 1 foot deep on several streets in Miami Beach, primarily the mid and north sections. Roads impacted include: Alton Road, Indian Creek Drive, and Collins Avenue.
Also, street flooding in the Shorecrest neighborhood of Miami, in the area of NE 10 Avenue between NE 79th and 81st Streets; flooding at Jose Marti Park along the Miami River and I-95 where water overtopped the seawall and was 6-8 inches deep in parts of the park; and in the parking lot of Matheson Hammock Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2019Every state in 2019This day in weather historyWarnings in Florida, September 2019
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: 856990, 856991, 857289, 857291, 857290.