ShareThis Page
Regional

Not a record, but baby it's cold: Crooked Creek hit -13 early Monday

Mary Ann Thomas
| Monday, Jan. 1, 2018, 4:45 p.m.
About four inches of ice covers most of the Allegheny River beneath the Tarentum Bridge on Monday, Jan. 1, 2018.
Jack Fordyce | Tribune - Review
About four inches of ice covers most of the Allegheny River beneath the Tarentum Bridge on Monday, Jan. 1, 2018.
About four inches of ice covers most of the Allegheny River beneath the Tarentum Bridge on Monday, Jan. 1, 2018.
Jack Fordyce | Tribune-Review
About four inches of ice covers most of the Allegheny River beneath the Tarentum Bridge on Monday, Jan. 1, 2018.

Get used to the cold.

Sub-zero temperatures are expected throughout the week, with the only respite on Wednesday, according to the National Weather Service.

The National Weather Service issued two wind chill advisories Monday, lasting until noon Wednesday: Wind chills could dip as low as -15 anytime in Southwestern Pennsylvania and as low as -20 in Westmoreland and Fayette county's ridge areas, according to Bob Coblentz, a meteorologist with the National Weather Service in Moon.

Local waterways, including large sections of the Allegheny River, have frozen over.

Allegheny, Armstrong, Butler and Westmoreland counties hit subzero temperatures Sunday into Monday, with the lows bottoming out between 6 and 8 a.m. Monday, according to Mike Fries, a meteorologist with the National Weather Service in Moon.

Monday's most frigid locations were:

• Allegheny County: Valencia -5 degrees; Ben Avon -4; the Pittsburgh International Airport -3, and Bridgeville -3

• Armstrong County: Crooked Creek Lake -13, and Freeport -5

• Butler County: Harmony -9; Slippery Rock -6, and Butler City -6

• Westmoreland County: Greensburg -10; Donegal -8, and Latrobe Airport 0.

Monday's lows didn't break Allegheny County's record of -7 in 1968, according to Fries. The lows in the other counties cannot be compared historically because of a lack of data, he said.

The range of cold temperatures varies because cold air is denser and settles into the valleys, Fries said.

Much of the region experienced temperatures of zero and lower early Monday.

Tuesday morning, temperatures were expected back down to zero, but not as cold as Sunday night because of cloud cover. However, the winds will kick up, bringing wind chills between -10 and -15 degrees, according to Fries.

A high of 15 degrees is forecasted for Tuesday, with a low of 4 degrees Tuesday night into Wednesday, he said.

The only break in the frigid weather comes Wednesday, when temperatures are expected to reach a high of 23 degrees; however, the region is expected to plunge down into single-digit temperatures with a low of 8 degrees Wednesday night into Thursday morning; Thursday will offer a high of 14 degrees, with lows back to -1 at night and into Friday, with wind chills of -15.

Forecasted daytime highs for the weekend will be: 8 degrees Friday, 11 Saturday and 24 Sunday.

Monday's forecast high of 38 will be "very temporary," according to Fries, as another cold snap follows.

Mary Ann Thomas is a Tribune-Review staff writer. Reach her at 724-226-4691, mthomas@tribweb.com or via Twitter @MaThomas_Trib.

TribLIVE commenting policy

You are solely responsible for your comments and by using TribLive.com you agree to our Terms of Service.

We moderate comments. Our goal is to provide substantive commentary for a general readership. By screening submissions, we provide a space where readers can share intelligent and informed commentary that enhances the quality of our news and information.

While most comments will be posted if they are on-topic and not abusive, moderating decisions are subjective. We will make them as carefully and consistently as we can. Because of the volume of reader comments, we cannot review individual moderation decisions with readers.

We value thoughtful comments representing a range of views that make their point quickly and politely. We make an effort to protect discussions from repeated comments either by the same reader or different readers

We follow the same standards for taste as the daily newspaper. A few things we won't tolerate: personal attacks, obscenity, vulgarity, profanity (including expletives and letters followed by dashes), commercial promotion, impersonations, incoherence, proselytizing and SHOUTING. Don't include URLs to Web sites.

We do not edit comments. They are either approved or deleted. We reserve the right to edit a comment that is quoted or excerpted in an article. In this case, we may fix spelling and punctuation.

We welcome strong opinions and criticism of our work, but we don't want comments to become bogged down with discussions of our policies and we will moderate accordingly.

We appreciate it when readers and people quoted in articles or blog posts point out errors of fact or emphasis and will investigate all assertions. But these suggestions should be sent via e-mail. To avoid distracting other readers, we won't publish comments that suggest a correction. Instead, corrections will be made in a blog post or in an article.

click me