The combination of tropical moisture and a slow moving cold front allowed for scattered showers and thunderstorms across southern Florida throughout the day. Heavier showers arrived late in the afternoon and evening, bringing rain to areas across Miami-Dade County.
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.
The combination of tropical moisture and a slow moving cold front allowed for scattered showers and thunderstorms across southern Florida throughout the day. Heavier showers arrived late in the afternoon and evening, bringing rain to areas across Miami-Dade 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 Mar 29, 6:28 PM EST, 3 hours 2 minutes earlier.
Area Forecast Discussion National Weather Service Miami FL 728 PM EDT Wed Mar 29 2023 ...New UPDATE, AVIATION... .UPDATE... Issued at 723 PM EDT Wed Mar 29 2023 A flurry of convective activity continues, mainly along an axis from Miami-Fort Lauderdale up through Glades County, this evening. A special 21z sounding details a moistened atmosphere (Precipitable Water of 1.85 inches) along with plenty of available surface-based instability and sources of lift thanks to different boundaries around the area. The current forecast captures this well with no major updates deemed necessary at this point. Will continue to monitor the convection in case an isolated strong cell materializes. Otherwise, no additional updates are anticipated through the evening hours. Have a safe Wednesday night! && .SHORT TERM... (Rest of today through Thursday) Issued at 207 PM EDT Wed Mar 29 2023 A weak frontal boundary will slowly progress south through our region today and tomorrow. Based on the 12Z sounding this morning, significant dry air exists in the mid levels, convective parameters are low and PWATs are still pretty low around 1.2 inches. Therefore, widespread shower development is unlikely. The majority of showers that do develop would form along the frontal boundary, which looks to set up around Palm Beach county today. Thus, Palm Beach county is expected to be the main area affected today with some showers this afternoon and evening. Spotty showers are expected to linger in the area overnight into Wednesday as well. Outside of Palm Beach county, other areas will have a slight chance for a couple of light showers this evening, tonight and through tomorrow as the front moves south, but expecting most hours to stay predominantly dry outside of Palm Beach. Temperature-wise, we should see mid 80s for most areas today with lower 80s closer to the lake. Overnight lows are projected to be in the low 70s for the east coast and mid to upper 60s elsewhere. Marginally cooler temperatures are likely for east coast areas tomorrow. && .LONG TERM... (Thursday night through next Tuesday) Issued at 207 PM EDT Wed Mar 29 2023 With the establishment of a mid-level ridge across the southern Gulf of Mexico and northern Caribbean Sea, pressure heights will gradually increase our area late this week. At the same time, a large and expansive ridge of surface high pressure will remain in control at the surface as the center gradually pivots eastward across the western Atlantic. With the pivoting of the ridge, surface winds will gradually veer from a east-northeasterly direction to the southeast direction. With the increased pressure heights and synoptic ridging, Friday will remain dry outside of an light isolated shower or two. Temperatures will range from the upper 70s to low 80s across southeastern Florida due to breezy onshore winds and temperatures in the upper 80s across southwestern Florida. As a mid-level trough advects eastward across the Great Lakes, a surface low pressure system will deepen as it advects to the northeast. A frontal boundary associated with the low pressure system will propagate southeastward and arrive across the region during the day on Saturday. Winds will veer southerly to southwesterly during the day as the surface wind field responds to the approaching frontal boundary. Warm air advection and moisture transport will result in increasing moisture and instability values across the region beginning on Saturday. By Sunday and into Monday, model guidance depicts the potential of the frontal boundary stalling out across our region and may become frontolytic in nature. Uncertainty remains as far whether the frontal boundary could stall to the north of the region, successfully pass through the region, or remain draped across the region and gradually wither away. With limited instability, thunder chances look very low at this point and the latest forecast once again takes a blend of the models and a slight chance of showers over the east coast metro areas remains possible on Sunday into Monday. Temperatures will range from the mid 80s along the immediate east coast to temperatures in the upper 80s to low 90s across the remainder of the region. Beyond the beginning of next week, the ridge of surface high pressure will once again build back into the region with easterly to southeasterly flow prevailing for the time being. High temperatures will remain in the mid 80s across the east coast metro areas to the lower 90s across southwestern Florida. Heat indices could reach the mid 90s across southwestern Florida during the afternoon hours. && .AVIATION... (00Z TAFS) Issued at 723 PM EDT Wed Mar 29 2023 Bouts of sub-VFR will continue into the evening and possibly even the early overnight hours before convection begins to diminish around the east coast terminals. Gradual improvement back to VFR through the early morning with a generally dry day forecast on Thursday. Short-fused AMDs will likely be needed through at least midnight for IFR/LIFR. && .MARINE... Issued at 207 PM EDT Wed Mar 29 2023 ENE winds should continue for the end of the week and into next week. They will be slightly breezy through Thursday and Friday before increasing more over the weekend. Therefore, seas should slowly decrease through the end of the week to the 2-4ft range before rising back up to 4-6ft this weekend. These heights should continue into next week. && .PRELIMINARY POINT TEMPS/POPS... Miami 71 80 71 81 / 60 20 0 0 West Kendall 68 83 68 84 / 50 20 0 0 Opa-Locka 69 82 69 83 / 70 20 0 0 Homestead 68 82 69 82 / 40 20 0 0 Fort Lauderdale 71 79 71 81 / 70 10 0 0 N Ft Lauderdale 71 79 71 81 / 70 10 0 0 Pembroke Pines 69 82 69 83 / 70 10 0 0 West Palm Beach 70 80 69 81 / 50 10 0 0 Boca Raton 71 82 70 82 / 70 10 0 0 Naples 68 87 67 88 / 20 10 0 0 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && SHORT TERM...Redman LONG TERM....Hadi AVIATION...RAG
Hazardous Weather Outlook National Weather Service Miami FL 124 PM EDT Wed Mar 29 2023 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 301730- 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- 124 PM EDT Wed Mar 29 2023 ...Scattered Thunderstorms This Afternoon/Evening: East Coast... ...A Few Strong To Severe Wind Gusts Possible: East Coast... ...Isolated Street Flooding Possible: East Coast... This Hazardous Weather Outlook is for Atlantic, Biscayne Bay, South Florida, Gulf of Mexico and Lake Okeechobee. .DAY ONE...This afternoon and tonight. Rip Currents: A moderate risk of rip currents continues at the Palm Beaches. Thunderstorms: Scattered thunderstorms will be possible especially over the interior and east coast metro areas this afternoon and this evening. The main hazards associated with these storms will be lightning, heavy downpours, and gusty winds. Wind: A few strong thunderstorm wind gusts will be possible, particularly over metro portions of Miami-Dade and Broward Counties. An isolated severe thunderstorm cannot be ruled out this evening. Hail: Small hail cannot be ruled out for the eastern half of South Florida. Flooding: Heavy downpours from the strongest thunderstorms could create the potential for localized flooding over the east coast metro areas this afternoon and this evening. Waterspouts: An isolated waterspout cannot be ruled out over the Atlantic Waters. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The risk of rip currents will increase across all east coast beaches towards the end of the week and into the first part of the weekend. Hazardous marine conditions will be possible over the Atlantic waters for the end of the week as winds and seas increase behind a passing cold front. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.
Special Weather Statement
National Weather Service Miami FL
441 PM EDT Wed Mar 29 2023
FLZ066-070-292115-
Hendry FL-Inland Collier County FL-
441 PM EDT Wed Mar 29 2023
...Strong thunderstorms will impact portions of northeastern Collier
and southeastern Hendry Counties through 515 PM EDT...
At 440 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms along a line extending from 6 miles east of Ave
Maria to near Hendry Correctional. Movement was east at 10 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Ave Maria, Immokalee, Golden Gate Estates, Hendry Correctional, Big
Cypress Seminole Reservation, Miles City, Sunniland, Bunker Hill and
Lake Trafford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Persons participating in outdoor activities should seek sturdy
shelter until these storms pass. Open shelters found in parks,
beaches, or golf courses offer no protection from the dangers of
lightning.
&&
LAT...LON 2662 8095 2617 8089 2613 8154 2646 8152
TIME...MOT...LOC 2040Z 280DEG 9KT 2636 8135 2632 8117
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
RAGSpecial Weather Statement
National Weather Service Miami FL
515 PM EDT Wed Mar 29 2023
FLZ066-070-071-292200-
Inland Broward County FL-Hendry FL-Inland Collier County FL-
515 PM EDT Wed Mar 29 2023
...Strong thunderstorms will impact portions of east central Collier,
southeastern Hendry and Broward Counties through 600 PM EDT...
At 515 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms along a line extending from near Big Cypress
Seminole Reservation to Miccosukee Indian Reservation to near
Intersection Alligator Alley And Miami Canal. These storms were
slowly moving southeast.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Miccosukee Indian Reservation, Big Cypress Seminole Reservation,
Intersection Alligator Alley And Miami Canal, Miccosukee Service
Plaza, Big Cypress National Preserve and West Broward Rec. Area On
Alligator Alley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Persons participating in outdoor activities should seek sturdy
shelter until these storms pass. Open shelters found in parks,
beaches, or golf courses offer no protection from the dangers of
lightning.
&&
LAT...LON 2610 8115 2600 8075 2608 8055 2631 8060
2632 8088 2632 8106
TIME...MOT...LOC 2115Z 309DEG 4KT 2623 8096 2619 8086 2615 8069
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
RAGThe national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
A post on social media showed notable street flooding in Miami. The roadway near the intersection of Biscayne Boulevard and NE 15th Street had an estimated five inches of water across the road. Rainfall measurements in the general area were in the two to three inch range.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2023Every state in 2023This day in weather historyWarnings in Florida, March 2023
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: 1086665.