An isolated strong thunderstorm developed over northern Brevard county and produced a brief waterspout on the St. Johns River east of Christmas.
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 MLB wrote it up.
An isolated strong thunderstorm developed over northern Brevard county and produced a brief waterspout on the St. Johns River east of Christmas.
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 Melbourne, FL wrote its last area forecast discussion before the first event at Sep 7, 3:06 PM EST, 1 hour 4 minutes earlier.
Area Forecast Discussion National Weather Service Melbourne FL 406 PM EDT Tue Sep 7 2021 .DISCUSSION... Currently-Tonight... As expected, coverage of precipitation has remained isolated and closer to the coast than most guidance indicated this morning. However, the HRRR and other short term high res models have now caught on to this thinking with most of the convection modeled closer to the coast between Orlando and I-95. Radar imagery currently shows isolated showers and storms developing near the coast. Most activity has stayed along and west of I-95 and east of Orlando with the much deeper and stronger west coast sea breeze pinning the east coast sea breeze near the coast. MCO TDWR shows the east coast sea breeze just west of I-95 at the moment and slowly pushing further inland. Analysis charts show precipitable water values near or just under 2." Drier air for the time being has won out with a weak mid/upper level ridge axis stretching into Florida. Showers and storms are forecast to increase in coverage through the afternoon hours as sea breeze collision and outflow boundaries collide. However, I've kept POPs capped at 60%, mainly between Orlando and I-95 due to the weaker east coast sea breeze and drier air keeping things limited in coverage. Temperatures will be in the upper 80s to low 90s through this afternoon with low temperatures dropping into the low-to-mid 70s. Wednesday-Friday... (modified previous discussion) A Tropical wave over the northern central GOMEX Wednesday morning will turn ENE and move onshore/across the FL panhandle and far NOFL late Wed night-Thursday. The low is progged to and emerge off the GA coast Thursday evening before moving ENE-ward well offshore the mid Atlantic coast through Friday night. This will maintain WSW low- mid level flow of fairly deep moisture across ECFL through the end of the work week. Expect a WCSB-dominant convective regime with diurnal showers/TS chances beginning by late morning over the west interior, spreading eastward across the coast from late in the afternoon through around sunset, moving offshore by early evening. POPs will be near to slightly above normal through Friday as the tropical disturbance moves north of east-central Florida. Max temps 90-92F, (a couple degrees above climo) with mins in the L-M70s. Saturday-Monday... (previous discussion) Narrow extension of the Atlantic mid level ridge will build westward into Florida this weekend and remain in place a into early next week. This will support the surface ridge axis lifting north of ECFL through the period, resulting in developing onshore flow. This regime supports greater chances for diurnal convection over the western peninsula, with an earlier onset and ending farther east. Forecast maintains 30-40 POPs, although these numbers may wind up lower along the east coast, given mean moisture won't be quite as deep, and the the ECSB will push inland faster than in previous days. Max temps U80s along the coast/L90s inland. mins in the L70s inland, and M70s along the coast. && .AVIATION... SHRA/TSRA will push mainly east this afternoon. Coastal terminals will experience reduced visibilities and MVFR cigs as storms develop along the coastal counties through 07/21z. Then through early evening, as the west coast sea breeze moves eastward, new SHRA/TSRA will either move in or develop near the interior terminals. Lightning strikes, gusts up to 30-40 kt and brief reduction to visibilities due to heavy rain are expected. As these either dissipate or move away, VFR conditions will return and prevail for the rest of the night into Wed early afternoon. && .MARINE... Currently-Tonight... Boating conditions will continue a slow deteriorating trend as Hurricane Larry continues to move closer to the eastern seaboard but remains well offshore. Isolated-to-scattered showers and thunderstorms will be possible over the waters, mainly during the afternoon hours before moving onshore. Winds will be predominately be easterly from 5-10kts through the evening hours before backing offshore overnight. Expected wave heights of 2-3 feet before rising to up to 4 ft in the far offshore waters (20-60nm). Wednesday-Saturday... (previous discussion) GOMEX low pressure system moves ENE onshore the FL panhandle Wed night, across far NOFL/SOGA through Thu night and offshore the mid Atlantic on Fri, keeping the surface ridge axis suppressed south of central FL. Offshore flow continues through the end of the work week, slackening on Saturday as the ridge axis moves north into central Fl. The main marine concern will building long period swells emanating from distant but powerful major Hurricane Larry from mid-late week as its center crosses north of the latitude of central FL. Latest wave model guidance steadily builds seas to 4-6ft late Wed, 5-7ft Thu, and peaks them at 6-8ft Fri before subsiding back to 3-4ft by late Sat. In addition to the large swells offshore, navigating local inlets will remain quite hazardous during the outgoing tide cycles through the end of the week. && .PRELIMINARY POINT TEMPS/POPS... DAB 74 90 74 90 / 40 50 20 60 MCO 76 93 76 91 / 30 60 10 60 MLB 75 90 74 92 / 30 60 20 50 VRB 73 91 74 93 / 30 40 20 40 LEE 76 91 76 89 / 20 50 10 60 SFB 75 92 75 90 / 30 60 10 60 ORL 75 92 75 90 / 30 60 10 60 FPR 74 90 73 92 / 30 40 20 40 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. && Fehling/Negron/Haley
Hazardous Weather Outlook National Weather Service Melbourne FL 947 AM EDT Tue Sep 7 2021 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-080200- Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia- Brevard County Line to Sebastian Inlet 0-20 nm- Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia- Brevard County Line 20-60 nm-Volusia- Brevard County Line to Sebastian Inlet 20-60 nm- Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia- Northern Lake-Orange-Seminole-Southern Brevard-Osceola- Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia- Southern Lake-Northern Brevard- 947 AM EDT Tue Sep 7 2021 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .THUNDERSTORM IMPACT... Scattered to numerous showers and storms are expected to develop along the inland moving sea breeze boundaries across east central Florida this afternoon. The greatest storm coverage is expected to be along and west of I-95 later in the afternoon as the sea breeze boundaries collide. Storms will generally move toward the east up to 10 to 15 mph with precipitation diminishing as it pushes offshore. A few stronger storms will be capable of producing frequent lightning strikes, gusty winds up to 40 to 45 mph, torrential downpours, and flooding over low-lying areas, in addition to, areas where training of storms occur. .FLOOD IMPACT... Locally heavy rainfall of 1 to 3 inches in a short period of time will occur with some of the slower moving storms this afternoon and early evening. This will cause minor standing water issues along roadways and poor drainage areas. .RIP CURRENT IMPACT... An increasing very long period east swell from distant Major Hurricane Larry will lead to a High Risk for life-threatening rip currents at area beaches today. Entering the dangerous surf is not advised. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. .MARINE THUNDERSTORM GUST IMPACT... Isolated storms will initially form along the developing east coast sea breeze early this afternoon. Precipitation will then increase in coverage across the interior as this boundary pushes inland and collides with the west coast sea breeze along and west of I-95. A few stronger storms will be capable of producing gusty winds around 35 to 40 knots over inland lakes through late afternoon, and as some of this activity pushes offshore through early this evening. .WIND AND SEA IMPACT... Hazardous boating conditions may exist at inlets during the outgoing tide cycle this afternoon due to the developing easterly long period swell from distant Major Hurricane Larry. Small craft should exercise caution if navigating through inlets. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. Scattered to numerous afternoon showers and lightning storms are expected each day through late week. Frequent lightning, gusty winds, and minor flooding from torrential downpours will be possible with a few stronger storms each day. A High risk of dangerous rip currents will continue through late week as long period swells from distant Major Hurricane Larry propagate into the surf zone. This may also lead to a period of poor to hazardous small craft boating conditions late this week. Additionally, there is a low chance for tropical development with a weak disturbance as it moves from the northern/eastern Gulf of Mexico mid-week, or across the Atlantic, offshore northeast Florida by late week. At this time, the greatest potential threat from this system to east-central Florida are increased rain chances and flooding where frequent torrential rainfall occurs, as well as, hazardous surf conditions. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. Fehling
1 strong wind. Local standard time, as filed.
Waterspout. Location: 28.5412N, 80.9397W. An isolated thunderstorm developed and slowly moved south across northern Brevard county. A photo posted on social media confirmed that this storm produced a brief waterspout on the St. Johns River near the State Road 50 boat ramp, just east of the town of Christmas.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2021Every state in 2021This day in weather historyWarnings in Florida, September 2021
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: 973214.