Currently in Boston — August 18, 2023: Strong showers and thunderstorms, then a nice weekend

The weather, currently.

There will be showers and thunderstorms arriving Friday morning. Some of these could be strong or even severe. There's a very small but not a zero chance of a tornado. We have seen this a couple of times this summer.

There may be a lull in shower activity before an additional round of showers is possible for the afternoon. This will mark a cold front. Once this finally passes offshore those skies will clear and cooler and drier air arrives. The weekend is looking really nice. There will be a lot of sunshine with temperatures in the '70s on Saturday and '80s on Sunday. Early next week looks pleasant.

— Dave Epstein

What you need to know, currently.

Canada’s hellish wildfire season keeps getting worse.

An evacuation order was announced on Wednesday for the entire city of Yellowknife (pop. 22,000), capital of the Northwest Territories as wildfires encroached from all sides. Yellowknife is one of the largest cities in Canada’s far north, and communications, power, and supplies have been difficult to obtain as fires continue to grow.

Residents must vacate the city by noon Friday, and cars and buses along with fuel tankers are being escorted by police through thick smoke on the last remaining open road out of town. Those in hospitals or otherwise needing extra care will be airlifted. It’s one of the largest evacuation efforts in Canadian history.

This is by far the worst wildfire season in Canada’s modern records — with about twice the normal total land area burned so far with still about half of the season remaining. More than 13 million hectares (30 million acres) have burned so far, about three times the size of Switzerland.

Cabin Radio, an independent publication based in Yellowknife, will have the latest updates through the weekend.

—Eric Holthaus

What you can do, currently.

The fires in Maui have struck at the heart of Hawaiian heritage, and if you’d like to support survivors, here are good places to start:

The fires burned through the capital town of the Kingdom of Hawaii, the ancestral and present home to native Hawaiians on their original unceded lands. One of the buildings destroyed was the Na ‘Aikane o Maui cultural center, a gathering place for the Hawaiian community to organize and celebrate.

If you’d like to help the community rebuild and restore the cultural center, a fund has been established that is accepting donations — specify “donation for Na ‘Aikane” on this Venmo link.