Deep and moist south-southeasterly flow and a lingering upper level trough in the Gulf of Mexico brought scattered, slow moving afternoon showers and storms across South Florida. Several funnel clouds and street flooding were reported along the east coast metro.
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 MFL wrote it up.
Deep and moist south-southeasterly flow and a lingering upper level trough in the Gulf of Mexico brought scattered, slow moving afternoon showers and storms across South Florida. Several funnel clouds and street flooding were reported along the east coast metro.
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 23, 12:24 PM EST, 1 hour 36 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 124 PM EDT WED SEP 23 2015 .AVIATION... ATLC SEA BREEZE/OUTFLOW FROM MARINE CONVECTION HAS PUSHED INLAND ALONG EAST COAST...THUS VCTS AND E 10 KT NIGHT SHOULD PREVAIL THROUGH 0Z. WITH DEBRIS CI OVERSPREAD MUCH OF SOUTHEAST FLOW...CONFIDENCE IN TEMPO TSRA GROUPS IS NOT HIGH...BUT KEPT IN FROM 18Z-22Z WITH THIS ISSUANCE. TONIGHT INTO THURSDAY...SHOWERS AND PSBLY A FEW TSTMS WILL CONTINUE...SO VCSH IN PLACE. LIGHT WINDS OVERNIGHT COULD HAVE SLIGHT OFFSHORE COMPONENT...BECOME NE BY THU MID-MRNG. FOR KAPF...DELAYED VCTS TODAY UNTIL 19Z..WHEN GULF SEA- BREEZE SHOULD KICK IN...WNW WINDS THEN THROUGH 0Z. && .PREV DISCUSSION... /ISSUED 1003 AM EDT WED SEP 23 2015/ UPDATE... 12Z RAOB ANALYSIS REVEALED HIGHLY MOIST AND MODERATELY UNSTABLE ATMOSPHERE...AS EXPECTED. BESIDE CLOUD TO GROUND LIGHTNING...GUSTY WINDS ARE ALSO POSSIBLE WITH STRONGER THUNDERSTORM. SEA BREEZE SHOULD DEVELOP BY NOON...WITH THUNDERSTORMS DEVELOPING ALONG IT. STORM MOTION SHOULD PUSH ACTIVITY BACK TOWARD COAST. ADJUSTED HOURLY GRIDS TO ACCOUNT FOR CURRENT TRENDS...OTHERWISE NO CHANGES TO OVERALL FORECAST. PREV DISCUSSION... /ISSUED 430 AM EDT WED SEP 23 2015/ DISCUSSION... SHORT TERM (TODAY THROUGH FRIDAY)...HIGH LEVELS OF MOISTURE WILL BE THE DOMINANT FACTOR AS COMPOSITE TOTAL PRECIPITABLE WATER DATA SHOWS A STEADY STREAM OF MOISTURE FROM THE EAST AT LOW LEVELS AND FROM THE SOUTH/SOUTHWEST AT MID TO UPPER LEVELS UNDER THE INFLUENCE OF THE TROUGH IN THE GULF OF MEXICO. THIS WILL RESULT IN PRECIPITABLE WATER REACHING AND EXCEEDING 2 INCHES, EVEN AROUND LAKE OKEECHOBEE WHERE DRIER AIR HAS RESIDED THE PAST COUPLE OF DAYS. THIS TYPE OF PATTERN ALWAYS RAISES THE POSSIBILITY OF LOCALLY HIGH RAINFALL AMOUNTS, AND ONLY INGREDIENT THAT SEEMS TO BE MISSING IS A WELL DEFINED LARGE-SCALE LOW LEVEL FOCUS. NEVERTHELESS, THERE WILL BE ENOUGH DESTABILIZATION OF THE ATMOSPHERE, ESPECIALLY DURING THE DAY, FOR SHOWERS AND THUNDERSTORMS TO FOCUS ALONG BOUNDARIES SUCH AS SEA BREEZE/OUTFLOW BOUNDARIES AND COASTAL CONVERGENCE. AVERAGE RAINFALL AMOUNTS AREA-WIDE ARE FORECAST TO BE IN THE 1-2 INCH RANGE THROUGH FRIDAY, WITH THE USUAL LOCALLY HIGHER AMOUNTS WHICH WOULD BE MOST LIKELY TO OCCUR OVER THE INTERIOR AND EAST COAST. DAILY DETAILS TO FOLLOW. TODAY AND TONIGHT: FOCUS OF GREATEST COVERAGE SHOULD BE OVER SE FLORIDA ALONG SEABREEZE DEVELOPING AROUND MIDDAY, SPREADING ACROSS THE PENINSULA AS OUTFLOW BOUNDARIES PREDOMINATE LATER IN THE AFTERNOON UNDER LIGHT STEERING FLOW. SIMILAR TO TUESDAY, CONVECTION COULD SHIFT BACK TO THE EAST LATE IN THE DAY AND AFFECT THE EAST COAST. COOLER AIR ALOFT REFLECTED BY 500 MB TEMPS AROUND -8C WILL MEAN THAT THE STRONGER CELLS COULD PRODUCE GUSTY WINDS. SHOWERS AND THUNDERSTORMS WILL LIKELY STAY FAIRLY ACTIVE WELL INTO THE EVENING AND OVERNIGHT HOURS AS A DISTURBANCE ROUNDS THE GULF OF MEXICO TROUGH AND MOVES TOWARDS THE FLORIDA PENINSULA, ESPECIALLY ALONG THE EAST COAST IN FAVORABLE COASTAL CONVERGENCE OF EAST/SOUTHEAST FLOW. THURSDAY AND THURSDAY NIGHT: THE MID/UPPER DISTURBANCE MOVES THROUGH SOUTH FLORIDA AND WILL CONTINUE TO ENHANCE UNIFORM COVERAGE OF SHOWERS AND THUNDERSTORMS IN DEEPENING SOUTHERLY LOW TO MID LEVEL FLOW. EXPECT PERIODS OF SHOWERS/TSTMS ALMOST ANY TIME WITH THE MOST WIDESPREAD AREAL COVERAGE IN THE AFTERNOON AND EARLY EVENING. EVEN WITH ABUNDANT CLOUD COVER, ANY BREAKS IN THE CLOUDS DURING THE DAY WILL ACT TO DESTABILIZE THE AIR MASS WITH THE COLD AIR ALOFT PERSISTING OVER THE REGION, LEADING TO A FEW STRONGER STORMS WITH GUSTY WINDS. FRIDAY AND FRIDAY NIGHT: THE MID/UPPER TROUGH BEGINS TO PULL AWAY FROM THE AREA, BUT NOT SUFFICIENTLY ENOUGH TO CUT DOWN ON SHOWERS AND THUNDERSTORMS WHICH ARE EXPECTED TO REMAIN ACTIVE THROUGH THE DAY AND EVENING. HIGH TEMPERATURES THROUGH THE PERIOD WILL BE IN THE MID/UPPER 80S WITH LOWS IN THE 70S. LONG TERM (SATURDAY THROUGH TUESDAY): LESS COVERAGE OF SHOWERS AND THUNDERSTORMS THIS UPCOMING WEEKEND AS MID/UPPER RIDGE BUILDS BACK OVER AREA FROM THE SOUTH. RAIN CHANCES BACK TO NEAR NORMAL VALUES FOR THE LATTER PART OF RAINY SEASON AND MORE DIURNALLY DRIVEN. UNFORTUNATELY THIS DRIER PATTERN DOES NOT APPEAR TO LAST LONG AS ANOTHER TROUGH IN THE GULF OF MEXICO AND EASTERN U.S. EARLY NEXT WEEK BEGINS TO DRAW DEEPER MOISTURE BACK INTO THE AREA ALONG WITH A SURFACE LOW PRESSURE FORECAST BY THE MODELS TO MOVE INTO THE SOUTH-CENTRAL GULF OF MEXICO. REGARDLESS OF EXACTLY WHERE THIS LOW TRACKS AND HOW DEFINED IT IS, RAIN CHANCES LOOK TO INCREASE ONCE AGAIN ACROSS SOUTH FLORIDA EARLY NEXT WEEK. MARINE... LOCALLY HIGHER WINDS AND SEAS IN NUMEROUS SHOWERS AND SCATTERED TSTMS THROUGH FRIDAY WITH LESS COVERAGE OF PRECIPITATION THIS WEEKEND. WINDS OTHERWISE WILL BE GENERALLY 10 KNOTS OR LESS. A NORTH SWELL OFF THE PALM BEACH AND BROWARD COUNTY COASTS WILL BUILD GULF STREAM SEAS TO 4 FEET THROUGH FRIDAY. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 76 86 75 86 / 40 60 60 60 FORT LAUDERDALE 75 87 76 85 / 50 60 60 60 MIAMI 76 86 76 87 / 50 60 60 60 NAPLES 75 86 74 88 / 50 60 50 50 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && SHORT TERM...21/KM LONG TERM....59/RM AVIATION...23/SK
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 1224 PM EDT WED SEP 23 2015 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 240430- 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 EXTENDING FROM 20 NM TO 60 NM- WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL EXTENDING FROM 20 NM TO THE TERRITORIAL WATERS OF THE 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- GULF WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL EXTENDING FROM 20 TO 60 NM- 1224 PM EDT WED SEP 23 2015 ...SLOW MOVING STORMS WITH LOCALLY HEAVY RAINFALL POSSIBLE... ...A FEW STRONG STORMS WITH GUSTY WINDS THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS: SCATTERED TO NUMEROUS LIGHTNING STORMS WILL MOVE ONSHORE EARLY THIS AFTERNOON, WITH ADDITIONAL STORMS POTENTIALLY LATER TODAY. THE MAIN THREATS FROM STORMS TODAY WILL BE FREQUENT CLOUD TO GROUND LIGHTNING STRIKES, LOCALLY HEAVY RAIN AND GUSTY WINDS. FLOODING: SLOW MOVING SHOWERS AND STORMS TODAY WILL PRODUCE VERY HEAVY RAINFALL. THIS WILL LEAD TO PONDING OF WATER ON ROADWAYS AND MINOR URBAN FLOODING ESPECIALLY IN VULNERABLE LOCATIONS. WIND: THE STRONGEST STORMS TODAY WILL BE CAPABLE OF PRODUCING WIND GUSTS OF 45 TO 50 MPH. WATERSPOUTS: ISOLATED WATERSPOUTS ARE POSSIBLE OVER THE GULF, ATLANTIC WATERS AND BISCAYNE BAY IN ASSOCIATION WITH SHOWERS AND THUNDERSTORMS. RIP CURRENTS: AN INCREASING NORTHEAST SWELL OVER THE ATLANTIC WILL LEAD TO A MODERATE RISK FOR RIP CURRENTS AT PALM BEACH...BROWARD...AND MIAMI-DADE BEACHES TODAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY AN UPPER LEVEL LOW OVER THE SOUTHEASTERN US AND DEEP MOISTURE WILL BRING NUMEROUS AFTERNOON AND EVENING STORMS ACROSS THE REGION INTO THE UPCOMING WEEKEND. LOCALLY HEAVY RAINFALL AND MINOR URBAN FLOODING WILL BE POSSIBLE WITH STORMS. THE RIP CURRENT RISK WILL REMAIN ELEVATED THROUGH FRIDAY ALONG THE ATLANTIC BEACHES DUE TO A NORTH-NORTHEASTERLY SWELL. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1016 AM EDT WED SEP 23 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM FLOOD 2 NW WESTON 26.13N 80.41W
09/22/2015 BROWARD FL PUBLIC
PHOTO RECEIVED VIA SOCIAL MEDIA INDICATES SIGNIFICANT
STREET FLOODING NEAR GLADES PARKWAY.
&&
EVENT NUMBER MFL1500337
KONARIKThe Miami radar (KAMX), 128 km away, was scanning. The volume nearest the first event began at 19:00 UTC.
2 funnel cloud, 1 flood. Local standard time, as filed.
Palm Beach County Emergency Management relayed report from public of a funnel cloud near North 60th street and Cheetham Hill Blvd. Location estimated via radar.
Photo received via social media shows significant street flooding near Glades Parkway.
Photo received from public via social media of funnel cloud. Location estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2015Every state in 2015This day in weather historyWarnings in Florida, September 2015
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: 596821, 596823, 596824.