Environment & Science

A wind advisory is in effect from 4 p.m. Wednesday until 4 a.m. Thursday, with northwest winds 20 to 30 mph and gusts of 40 to 50 mph expected. PPL said its ready to respond.

It's going to be a wild and windy few days for the Lehigh Valley and the rest of the Mid-Atlantic region, forecasters say, with temperatures set to soar before a strong cold front arrives.

Brad Klein reviews the week’s astronomical highlights with Bethlehem’s "Backyard Astronomy Guy," Marty McGuire.

Temperatures will be a roller coaster this week, with Sunday's seasonably cool air giving way to a few days of spring-like temperatures but with a chance of rain.

Take a look at stories that ran throughout the week of which we are most proud, had a profound impact on readers or that you might want to look at again.

Even with temperatures set to surge next week, experts say Mid-March could see a pool of cold air spilling into the Lower 48, potentially unleashing cold, stormy conditions.

A bright meteor raced across the skies around 6:50 p.m. Wednesday, with people near the Lehigh Valley reporting the sighting.

More than 100 businesses, officials, organizations and environmental advocates statewide — including two from the Lehigh Valley — signed a letter to Shapiro arguing his economic development plan, “Pennsylvania Gets It Done,” fails to prioritize sustainable industries and instead doubles down on fossil fuels.

LANTA and UGI Energy Services have signed a three-year deal that will provide the transportation authority with compressed natural gas collected from landfills in eastern Pennsylvania.

The Lehigh Valley stands alone as the only major climate site in the area with above-average snowfall this winter, but the pattern says winter could be just about over.

Northampton County celebrated the acquisition of the Bauer Preserve, its 23rd park, in Stockertown on Thursday.

Four surplus male bison from the Lehigh Valley Zoo will be donated to the Wildlife Restoration Foundation for transfer to a member of the InterTribal Buffalo Council in New York. The recent loss of the dominant male bison at the zoo necessitated the transfer.

Space weather forecasters have issued an alert for incoming severe solar storms. Such storms could bring northern lights to many U.S. states and temporarily disrupt communications.

The draft plan is the product of a series of well-attended public-input meetings over the past year.

For the second year, the nonprofit water and wastewater utility has launched a public outreach campaign about lead pipes. Under a new EPA rule, utilities have until 2037 to remove all lead service lines from its system.

The Allentown EAC on Monday approved two letters to City Council with recommendations for the citywide parks plan, as well as the city's first Climate Action Plan, respectively.

Three African Servals escaped from Cricket Wildlife Center after a powerful storm last Wednesday damaged their enclosure. After dozens of reported sightings, two of the wild cats are back, leaving one left to capture.

For November, WLVR's Brad Klein and Bethlehem's "Backyard Astronomy Guy" Marty McGuire are taking a look at comets, with three getting a lot of attention as they pass through our inner solar system. This week, the subject is astrophotography.

The speaker series, which runs on select Thursdays through March, focuses on engaging residents about the local environment, as well as conservation efforts.

Craig Pfeiffer, Bethlehem's assistant director of planning and zoning, gave a presentation Thursday on the city's new subdivision and land development ordinance, more commonly known as a SALDO.

The baby alpaca was born Oct. 23. The zoo is taking suggestions for a name.

A Wednesday night storm brought damaging winds to the area, with gusts reaching up to 47 mph. The National Weather Service warned of damage to trees and utilities, and a wildlife center in Berks County suffered just that: A tree fell on an enclosure housing three African servals that have since escaped.