Heavy rain associated with the intersection of a stalled frontal boundary and a coastal trough along the Treasure Coast trained into the coasts of St. Lucie and Martin Counties during the morning and early afternoon hours. Additional slow moving storms developed in the afternoon producing heavy rain and small hail in Central Okeechobee County.
Twenty-four hour rainfall totals reached 8-11 inches in and around the Palm City and Stuart areas with 3-7 inch amounts around Port St. Lucie. Radar estimated rainfall totals were up to 7 inches across Central Okeechobee County. The majority of this rainfall occurred in a period of 6-hours or less.
Flooding of many roadways occurred, stranding many vehicles. Water entered several homes in Palm City. Drainage canals overflowed and standing water reached a foot in many locations and was slow to recede. Standing water was reported on roadways in Central Okeechobee County.

Flood in OKEECHOBEE, FLORIDA
From 28-FEB-15 17:30:00 to 28-FEB-15 19:00:00 (EST-5)
Location: BASINGER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A slow moving strong storm across Okeechobee County produced 5 to 7 inches of rain across the northwest and central portions of the county during the afternoon and evening, primarily over the Kissimmee Prairie Preserve. The COOP observer at the Kissimmee Prairie Preserve reported 5.69 inches of rain in 24 hours while another range gauge at the park reported 6.92 inches. Most of this rainfall fell in less than 6 hours.
This heavy rainfall led to minor flooding of roadways across Central Okeechobee County. The Kissimmee Prairie observer reported several inches of standing water on local roadways, which remained passable.

Flash Flood in MARTIN, FLORIDA
From 28-FEB-15 10:00:00 to 28-FEB-15 15:00:00 (EST-5)
Location: JENSEN BEACH
Flood cause: Heavy Rain
Property damage: 105.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A combination of CoCoRAaS, ham radio and public reports indicated 5 to 11 inches of rain fell across northeastern Martin County, with most of the rain falling in a 6-hour or less period. The highest totals occurred within the southwestern portion of Stuart and in Palm City.
Flooding closed many roadways, stranding over 100 vehicles. Drainage canals and creeks overflowed. While high water surrounded many subdivisions, businesses and homes, water was reported to have entered 7 homes in Palm City. Damage was estimated around $105,000 dollars.

Flood in ST. LUCIE, FLORIDA
From 28-FEB-15 08:00:00 to 28-FEB-15 15:00:00 (EST-5)
Location: ELDRED
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A combination of CoCoRaHS, ham radio, and public reports indicated 3 to 6 inches of rain fell across southeastern St. Lucie County, with most of the rain falling in a 6-hour or less period.
Flooding closed many primary and secondary roadways, stranding and submerging many vehicles. Drainage canals and creeks overflowed. While high water surrounded many subdivisions, businesses and homes, no water was reported to have entered any homes or businesses.

Hail in OKEECHOBEE, FLORIDA
From 28-FEB-15 18:35:00 to 28-FEB-15 18:45:00 (EST-5)
Location: BASINGER
Magnitude: 0.88 
Reported by: Trained Spotter

A SKYWARN spotter in The Vikings (also known at The Prairie) subdivision reported 10 to 15 minutes of small hail up to nickel sized associated with a strong storm moving over the area.