Boston students get to play a third day at home -- but be careful, mayor says.

Nicolaus Czarnecki

Boston students were home for a third day today after Mayor Marty Walsh said he was "gravely worried" for children and teens waiting for school buses on the city’s still snow-clogged streets.

"There's a lot of work to do and we want to continue to do it and we also need your cooperation," Walsh told reporters.

He urged folks who are walking in the city streets because the sidewalks remain piled with snow to do so with caution.

Reports NBC Boston:
“The blizzard brought most of the city to a standstill. Crews continue to remove snow from streets and sidewalks and are making plans for the next phase of cleanup.


“The city will be bringing in snow melters to use Thursday and Walsh said he received offers of help from New York City Mayor Bill de Blasio and Philadelphia Mayor Michael Nutter. Trucks are also hauling snow to snow farms, including one in South Boston.”