<http://schema.org/articleBody>
"Much of Florida is feeling the effects of freezing temperatures.Watch: Cold start back to schoolWind chills will dip into the teens on Tuesday morning, raising health concerns for anyone spending time outside.Officials said it is important for students who are heading back to school to bundle up and wear layers, especially if they are walking to the bus stop.Watch: Boiling water turns to snow immediately in MinneapolisEven doctors have advice on how to dress.\"If you can stay in, stay in,\" said Dr. Mary Busowski of Orlando Health. \"Areas we worry about the most are our extremities. So if you have to be out, dress in layers and dress warm. Cover your head, hands and feet.\"Plants also need to bundle up to be protected from the cold.Watch: Temperatures plunge overnight in Central FloridaEric Apen, of Apenberry's Garden, told WESH 2 that people should never cover their plants in plastic because it is just an insulator. Instead, gardeners should use a sheet, blanket or a frost blanket.Since wind will be coming through with the colder temperatures, residents should secure their sheets or blankets with bricks or blocks.Apen said residents should turn off automatic watering systems overnight.Most vegetables and herbs are cold sensitive, but Apen said some plants are cold weather friendly and to research each plant prior to covering it.According to forecasters, the \"polar vortex\" that is pushing into the United States is bringing the coldest temperatures in 20 years to some areas.The polar vortex is circulation of strong, upper-level winds that normally surround the North Pole in a counterclockwise direction. 14276952"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wesh.com/article/frigid-temperatures-move-in-to-central-florida/4430603>