Upper St. Clair Superintendent Patrick O'Toole ordered a two-hour delay on Tuesday and Wednesday this week because of the wind chill factor.

Some Patch readers questioned whether the temperature would increase much in a two-hour span.

"The temperature usually rises after sunrise. There is greater safety in general in daylight. We sometimes need more time to get all the buses started when there are extended periods of cold weather," O'Toole responded.

The National Weather Service in Pittsburgh issued a wind chill advisory for Upper St. Clair on Tuesday and Wednesday. O'Toole said class is not always canceled or postponed when there is an advisory in effect, however, parents "should expect the possibility of a delay."

When the two-hour delays were announced this week, they came the day before. O'Toole said the administrators try to make the decision to delay or cancel school the night before when possible so parents can arrange child care. 

"It is important that parents know that a delay can turn into a cancellation," O'Toole warned.

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