* WHAT. Saltwater flooding 1 to 1.5 feet above ground. * WHERE. Bayside communities of the Upper Florida Keys. * WHEN. Through this evening, although water levels continue to fall steadily. * IMPACTS. Saltwater flooding of low elevation streets and lots is expected. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater.

* WHAT. Heat index values of 105 to 110 expected. * WHERE. Coastal Broward County, Coastal Miami Dade County, Coastal Palm Beach County, Far South Miami-Dade County, Inland Broward County, Inland Miami-Dade County, Inland Palm Beach County, Metro Broward County, Metro Palm Beach County, and Metropolitan Miami Dade Counties. * WHEN. From 10 AM this morning to 6 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.