Pittsburgh Polar Vortex – January 2015

Oakland: Rush hour traffic moves along Fifth Avenue. (Bill Wade/Post-Gazette)

Oakland: Rush hour traffic moves along Fifth Avenue. (Bill Wade/Post-Gazette)

Squirrel Hill: Traffic moves along Forbes Avenue toward the road's intersection with Murray Avenue. (Rebecca Droke/Post-Gazette)

Squirrel Hill: Traffic moves along Forbes Avenue toward the road’s intersection with Murray Avenue. (Rebecca Droke/Post-Gazette)

Squirrel Hill: Rich Celovsky of Munhall waits for a ride home from work inside the Carnegie Library. (Rebecca Droke/Post-Gazette)

Squirrel Hill: Rich Celovsky of Munhall waits for a ride home from work inside the Carnegie Library. (Rebecca Droke/Post-Gazette)

Mount Washington: The setting sun spashes orange against billowing clouds. (Andrew Rush/Post-Gazette)

Mount Washington: The setting sun spashes orange against billowing clouds. (Andrew Rush/Post-Gazette)

Troy Hill: The sun begins to set as a pedestrian makes her way up Troy Hill. (Lake Fong/Post-Gazette)

Troy Hill: The sun begins to set as a pedestrian makes her way up Troy Hill. (Lake Fong/Post-Gazette)

Lawrenceville: "I can still feel three of my fingers," says Paul Daniels of Bloomfield, who stood on Butler Street all day to promote a tax service. (Bill Wade/Post-Gazette)

Lawrenceville: “I can still feel three of my fingers,” says Paul Daniels of Bloomfield, who stood on Butler Street all day to promote a tax service. (Bill Wade/Post-Gazette)

Squirrel Hill: Snow blankets a residential development overlooking the Monongahela River, as seen from Beechwood Boulevard. (Rebecca Droke/Post-Gazette)

Squirrel Hill: Snow blankets a residential development overlooking the Monongahela River, as seen from Beechwood Boulevard. (Rebecca Droke/Post-Gazette)

East Liberty: Melissa Granatire of Brookline goes coatless in the frigid cold while Kelsi Hines of Friendship take photographs along the Eastside Pedestrian Bridge. (Rebecca Droke/Post-Gazette)

East Liberty: Melissa Granatire of Brookline goes coatless in the frigid cold while Kelsi Hines of Friendship take photographs along the Eastside Pedestrian Bridge. (Rebecca Droke/Post-Gazette)

North Park: German Shephard mix 2 Chainz had a ball in the dog park. Mike Cunic brought 2 Chainz and his other dog Kaya from Robinson Twp. to enjoy the snow and cold. (Robin Rombach/Post-Gazette)

North Park: German Shephard mix 2 Chainz had a ball in the dog park. Mike Cunic brought 2 Chainz and his other dog Kaya from Robinson Twp. to enjoy the snow and cold. (Robin Rombach/Post-Gazette)

Shippingport, Pa.: Large plumes of steam rise over Green Valley United Methodist Church. (Andrew Rush/Post-Gazette)

Shippingport, Pa.: Large plumes of steam rise over Green Valley United Methodist Church. (Andrew Rush/Post-Gazette)

Ohio River near Industry, Pa.: A Norfolk Southern train makes its way past the Montgomery Locks and Dam. (Andrew Rush/Post-Gazette)

Ohio River near Industry, Pa.: A Norfolk Southern train makes its way past the Montgomery Locks and Dam. (Andrew Rush/Post-Gazette)

Aliquippa, Pa.: Garth Cope of Unis Demolition makes a fire to keep warm on a job site. (Andrew Rush/Post-Gazette)

Aliquippa, Pa.: Garth Cope of Unis Demolition makes a fire to keep warm on a job site. (Andrew Rush/Post-Gazette)

North Park: Lisa Jeanson of Mars returns a ball during platform tennis league play. (Larry Roberts/Post-Gazette)

North Park: Lisa Jeanson of Mars returns a ball during platform tennis league play. (Larry Roberts/Post-Gazette)

Downtown: George Thompson of Penn Hills (foreground) and Delano Wright of Oakdale wait for a bus on Liberty Avenue. Both are 18. (Steve Mellon/Post-Gazette)

Downtown: George Thompson of Penn Hills (foreground) and Delano Wright of Oakdale wait for a bus on Liberty Avenue. Both are 18. (Steve Mellon/Post-Gazette)

Wood Street: Commuters seek warmth inside the "T" station during morning rush. (Steve Mellon/Post-Gazette)

Wood Street: Commuters seek warmth inside the “T” station during morning rush. (Steve Mellon/Post-Gazette)

North Shore: A look at Downtown from the North Shore. (Darrell Sapp/Post-Gazette)

North Shore: A look at Downtown from the North Shore. (Darrell Sapp/Post-Gazette)

Even though it is 10 degrees outside, Ken Smith is sticking to his usual baker's shorts at his Better Maid donut shop on Steuben St. in Pittsburgh's Elliot neighborhood. His only concession to the cold is the hat for his bald head. (Bob Donaldson/Post-Gazette)

Even though it is 10 degrees outside, Ken Smith is sticking to his usual baker’s shorts at his Better Maid donut shop on Steuben St. in Pittsburgh’s Elliot neighborhood. His only concession to the cold is the hat for his bald head. (Bob Donaldson/Post-Gazette)

Downtown: A pedestrian crosses at Blvd. of the Allies and Stanwix Street during morning rush. (Steve Mellon/Post-Gazette)

Downtown: A pedestrian crosses at Blvd. of the Allies and Stanwix Street during morning rush. (Steve Mellon/Post-Gazette)

West End: 14 degrees at 7 a.m. (Steve Mellon/Post-Gazette)

West End: 14 degrees at 7 a.m. (Steve Mellon/Post-Gazette)