National Weather Service Boise

If you’re going camping over Labor Day, be sure to take a jacket. It will definitely be cold and forecasters say some mountain areas could even see snow.

Temperatures will also drop in the Treasure Valley, thanks to an anomaly in the Pacific Ocean. Forecasters say for the first time ever, three large hurricanes were recorded east of the International Date Line at the same time.

Chris Willey / Flickr Creative Commons

The migration of sockeye salmon from the ocean to inland parts of the Northwest has been deadly this year. Hotter than normal temperatures early in the summer warmed up low-flowing rivers, and more than a quarter million sockeye are dead or dying in the Columbia River and its tributaries.

But Idaho Fish and Game biologist Mike Peterson says the conditions are allowing scientists to observe just how resilient salmon can be in warmer water.

Elevated / Flickr Creative Commons

The Ketchum City Council this week passed an ordinance authorizing police to break into cars to rescue pets endangered by high temperatures. It may be the only city ordinance of its kind in Idaho. That could be because most law enforcement agencies don’t think it’s necessary.

Meridian Deputy Police Chief Tracy Basterrechea says even though his city doesn't have a specific ordinance on it, his officers have the authority to break into a car to rescue an overheated animal.

Kerry Lannert / Flickr Creative Commons

Idaho Power sees the highest demand for electricity in the summer when people crank up their air conditioners. And with a long stretch of very hot weather in store, that demand is expected to be very high.

The utility that powers most of southwest Idaho and eastern Oregon set a new record for energy consumption just two years ago in July. Idaho Power spokesman Brad Bowlin says that record could be surpassed soon.

John Brady / Flickr

Scientists at Washington State University have solved the mystery of dirty rain that fell on portions of the Pacific Northwest in February.

The scientists reported Tuesday that the milky rain was the result of a rare weather pattern that began nearly 500 miles away near an Oregon lake.

Meteorologist Nic Loyd says a meshing of weather systems ultimately caused dirty-white-colored raindrops to fall in parts of Washington, Oregon and Idaho.

The region's recent stretch of warm weather means Northwest sweet cherries will likely be going early to market this year.

Jeff Jones / Flickr Creative Commons

Warm temperatures in February have taken a toll on winter snowpack in the Cascade Mountains and other areas in the West.

The Natural Resources Conservation Service said Wednesday that nearly a third of monitoring sites in the Cascades and Sierra Nevada reported the lowest snowpack ever measured as of March 1, and some sites didn't have snow.

Snowpack in Nevada, Utah and Idaho also fell farther below normal.

Mark K. / Flickr

Boise and surrounding cities could break a record Tuesday, but keep a rain slicker handy for the storm moving in Wednesday night.

“Today we’re going for a high of 71, the record high for today is 73 in Boise, so it’s going to be close,” says National Weather Service meteorologist Dave Groenert.

Normally this time of year would see highs around 53 degrees.

Emilie Ritter Saunders / Boise State Public Radio

Last month was the warmest February ever recorded in Boise.

The National Weather Service says the city broke records for average high temperatures, warmest average low temperatures and warmest average temperature. The region also received more rain than usual.

The average high temperature in Boise was 53.2 degrees. That broke a record set in 1992 by a half degree. The previous record for average lows was set in 1983. The previous record for warmest average temperature in a February was set in 1963.

Such records have been kept in Boise since 1940. 

National Weather Service Boise

So far, February is turning out to be an unusually warm month in southern Idaho. According to the National Weather Service (NWS), temperatures for the first two weeks of the month have been 10 degrees above normal and have included two record-breaking high temperatures.

NWS Boise hydrologist Troy Lindquist says a wet and cooler spring would help the situation, and an early mountain snowmelt makes this year's water picture less sustainable.

Rob Swatski / Flickr Creative Commons

Spiders are out and about in Boise. University of Idaho entomologist Ed Bechinski says it's early for Idaho spiders to be out of hibernation (specifically in their case it's known as diapause).

But Bechinski isn’t surprised these arachnids are out. He says southwest Idaho's unseasonably warm temperatures are plenty to tell spiders that spring is here.

Last Friday much of eastern Washington and Oregon was pelted with a dirty rain, but so far scientists do not agree on a cause.

National Weather Service Boise

If you've ever wondered what it's like to watch a mountain lake freeze before your eyes, you're in luck. A timelapse video of Redfish Lake shows the ice creeping across the water in a matter of seconds.

The webcam responsible for catching this footage is set up by the Sawtooth Interpretive and Historical Association. Gary Gadwa is in charge of the nonprofit.

Emilie Ritter Saunders / Boise State Public Radio

Hydrologists from the Natural Resources Conservation Service  measured snow pack Tuesday in the mountains above the Treasure Valley. At the Mores Creek sight near Idaho City, snow pack was 53 inches. But more importantly, says water supply specialist Ron Abramovich, that snow contains 14 inches of water.

“And normally at this time of year we’d have 12 inches of water in the snow pack” he says. “So we’re a little above average, which is good.”

National Weather Service

Update, 9:15 a.m.: The National Weather Service has issued a winter weather advisory for much of southern Idaho and southeastern Oregon. The advisory will take effect late Wednesday afternoon as a cold front blows through.

Treasure Valley commuters navigated dense fog Friday morning, and more fog could be on the way for early Sunday.

A National Weather Service Boise forecaster just happened to climb Table Rock as the fog rolled through the eastern part of the valley. The forecaster pulled out his iPhone and captured a neat perspective on Friday morning's fog.

Source: National Weather Service Boise

weather, roads, snow, ice
Jodie Martinson / Boise State Public Radio

The Ada County Highway District (ACHD) is defending itself from criticisms over how it cleared -- or didn't clear -- the roads after last week's snow dump. A record-setting 7.6 inches of snow fell at the Boise Airport on Thursday and Friday.

Police departments tweeted warnings to drivers to mind the conditions after helping hundreds of vehicles involved in fender-benders and spins off the road.

Now, almost a week later, many major roads in Boise, Eagle, and Meridian still have snow and ice in patches and many drivers are complaining about why it's taken so long to clear.

Mia Gant / Flickr

This week's very cold weather in the Treasure Valley hasn't caused a lot of problems when it comes to frozen pipes.

That’s despite Boise setting another record low this morning of 4 degrees, breaking the old record of 7 set back in 1985. It's the third-straight morning of record cold.

United Water Idaho's Mark Snider says the company has had 10 calls from people without water.

Jay Breidenbach / National Weather Service

Treasure Valley residents still dealing with the aftermath of last week's record-setting snowfall now have an inversion on their hands, too.

The National Weather Service in Boise says the inversion set up Sunday. Meteorologist Bill Wojcik says it's likely to last through Saturday when winds from a new system disrupt the layering of warm air over cold. He says the inversion - the first of the season - reaches 10,000 feet into the atmosphere.

Boise River, snow, weather
Emilie Ritter Saunders / Boise State Public Radio

The winter storm system that has blanketed much of the region since Thursday morning will have dropped up to 8- inches of snow in the Boise area by the time it’s finished.

National Weather Service meteorologist Jay Breidenbach says snow should stop falling late Friday afternoon, and more snow isn’t in the immediate forecast.

“The damage is done," Breidenbach says. "The roads are going to be just horrible this afternoon for the commute because temperatures are going to stay below freezing."