Environment & Science

Tuesday's fast-moving storm swept quickly through the Lehigh Valley but packed a wallop, bringing nearly a foot of snow to several spots.

“This has been a tremendously difficult storm to forecast due to rapidly changing conditions/temperatures expected and the difference in timing,” the National Weather Service said in its forecast discussion.

PPL Electric Utilities and Met-Ed reported more than 13,000 customers without power Tuesday morning as a winter storm swept through the region.

Several Lehigh Valley schools are closing Tuesday because of the weather forecast.

Early Monday, the National Weather Service issued a winter storm warning in effect for the Lehigh Valley for 7 to 10 inches of snow, with locally higher amounts over the higher elevations.

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Lehigh and Northampton counties are under a winter storm watch in effect from 12 a.m. to 6 p.m. Tuesday, with 4 to 8 inches of heavy, wet snow possible.

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“This is not just a one-day spike,” the weather service said in its forecast discussion. “Very warm and above normal temperatures will continue through the upcoming weekend.”

Officials and executives at the Lehigh Valley Economic Development Corporation's annual meeting Tuesday pulled back the curtains on Eli Lilly's decision to open in the region.

The winter storm that prompted dire forecasts and a statewide disaster declaration largely fizzled in the Lehigh Valley, leaving the area with only moderate to light snowfall by Monday morning.

As the Lehigh Valley’s most recent blanket of snow rapidly melts away, Mother Nature appears ready to test the region’s patience all over again.

The early LIHEAP crisis numbers already represent a notable share of last winter’s total in the Lehigh Valley, according to data provided by the Department of Human Services.

An extreme cold warning, combined with a wind advisory also in effect, could mean wind chills as low as 20 degrees below zero for the region this weekend.

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Month-to-date snowfall in the Allentown area now stands at 20.8 inches, nearly triple the normal January average of 7.7 inches, according to the National Weather Service.

The storm dropped a record 11.8 inches of snow on Lehigh Valley International Airport, breaking the old record of 10.4 inches for the date set in 1988.

Forecasters say the Lehigh Valley region could see 10 to 16 inches of snow and sleet accumulations, with a wintry mix of snow and sleet expected Sunday afternoon and evening. A winter storm warning remains in effect into Monday afternoon.

Lehigh Valley shelters are adding capacity as meteorologists forecast between 10 and 16 inches of snow starting Sunday.