BARI, Italy (AP) _ Snowplows worked today to clear snow from runways at Bari's airport, but flights had to be diverted for a third straight day as more snow fell in the southern city.

The flights headed for Bari were instead sent to Brindisi, another, smaller airport in the Puglia region, state TV reported.

The region, forming the ''heel'' of the Italian peninsula, received more snow today, as did other southern areas, Calabria, in the ''toe,'' and Basilicata, the ''instep.''

Accumulations in the south ranged from several inches to 3 feet. In Basilicata, the city of Potenza reported 8 inches, while about 3 feet fell in the mountains in the region.

Trains to and from the south were running several hours late.

Snowstorms and freezing temperatures have been reported across most of Italy for the past few days, with Rome among the few places that has not had snow. However, snow flurries were spotted today in a few neighborhoods on the capital's outskirts, the Italian news agency AGI reported.

Rome last got a dusting of snow in February 1986; a few inches of snow fell in January 1985.