Environment & Science

Residents can anticipate a flood watch in effect for a significant portion of the area Tuesday night and throughout Wednesday, as heavy rainfall from showers and thunderstorms is expected.

Leaf-peeper season is right around the corner. Here's when to be on the lookout for pops of brilliant yellows, oranges and reds across the landscape.

Kathleen Covalt, who teaches online classes through Northampton Community College for adults interested in learning about unidentified anomalous phenomena, or UAPs, said there's hope for future disclosures.

A stalled front will take a parting shot at the Lehigh Valley on Monday, bringing additional showers, thunderstorms and possible downpours, forecasters say.

Sunday could be mostly a washout, with showers and the potential for heavy rainfall in the forecast throughout the day. Things are looking up, though, for later in the week.

The 17-year-old Allentown Central Catholic senior has been monitoring the creek's surface lead concentrations, and plans to continue researching.

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.

Easton City residents can recycle their old, outdated electronics and appliances at 500 Bushkill Drive this Saturday. Most items can be recycled for free, while some others require a small fee.

It could take two weeks to fix operational issues at Kline’s Island Wastewater Treatment Plant on Union Street. Officials described the sewer odor as an ‘"earthy" or "rotten egg" smell, but said it is not harmful to human health.

This first round of designations included 483 tracts across the country, with only one in the Lehigh Valley. Officials said additional designations are slated for the next 12 to 18 months.

Bird flu has arrived in the Lehigh Valley, contributing to the deaths of about 5,000 migrating snow geese at sites Lehigh and Northampton counties.

Letters of application for renewals of existing wastewater treatment plants and related discharges at Lehigh Township Municipal Authority-Pennsville and Lehigh Carbon Community College were approved by the LVPC Environment Committee on Tuesday morning.

The wind chill was minus 11 on Tuesday morning, and a cold weather advisory remains in effect in the Lehigh Valley until Wednesday. With those temperatures, we're more like Buffalo and colder than parts of Siberia.

The National Weather Service has issued a cold weather advisory for the Lehigh Valley and other parts of eastern Pennsylvania through noon Wednesday, with wind chills dropping to as low as 13 degrees below zero.

This week, WLVR's Brad Klein explore the prominent winter constellation Orion wit Marty McGuire, offering insights on its star patterns. Klein prefers to reimagine it as Orion the Dogwalker alongside the bright star Sirius.

While the snow took a few hours to start piling up, by mid-afternoon it was falling at rates of two inches per hour in some parts of the Lehigh Valley. Dangerous cold will follow the snow, forecasters say.

Following a Winter Storm Warning, The National Weather Service at Mount Holly, New Jersey has now issued a cold weather advisory for the Lehigh Valley and surrounding areas, warning of "dangerously cold" temperatures this week.

The U.S. Fish and Wildlife Service is considering the eastern hellbender for protections under the federal Endangered Species Act. Find out why habitat loss and the pet trade are contributing to population declines.

A new bridge in Lower Saucon Township allows pedestrians to navigate from Hellertown to Quakertown uninterrupted. A grand opening ceremony was held Saturday.

If predictions stay true, the Lehigh Valley would be on the higher end of the 4- to 7-inch range of snowfall. PennDOT and the PA Turnpike Commission have set vehicle and road restrictions.

Depending on how the system evolves, a robust and plowable storm seems like the more likely scenario for the region, with the timing on potential snowfall beginning to lock in for Sunday afternoon.

Confidence has increased for a clipper system to bring light snow to the region on Thursday, with potential for additional accumulation Sunday into Monday. The coldest air mass of the season arrives behind it, forecasters say.