Weather

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."

map, weather
National Weather Service

The first major winter storm of the season is headed for Idaho, Montana and Wyoming, bringing with it the season's first hard freeze and snowfall to the Treasure Valley.

There’s a good chance of snow on Thursday in the Boise area.

National Weather Service Meteorologist Les Colin says an arctic air mass is coming in from central Canada.

“There was a typhoon whose remnants went up into the Bering Sea,” Colin says, “and it created an intense storm there and the consequences spread into North America and then down south into Canada and into the United States.”

wrh.noaa.gov

After highs Monday about 15 degrees above average, temperatures in southern Idaho Tuesday should be below average. But so far, this fall has been unusually warm.

October days have averaged more than five-degrees warmer than what's typical for this time of year.  Through Monday, there were only four days this month the Treasure Valley did not reach the 70s.

The long-range weather outlook from the Climate Prediction Center gives high probabilities for a warmer and drier than average winter across the Northwest.

Kent Stokes, 28, can’t believe who survived the Carlton Complex wildfire.

roger wilkins / Flickr Creative Commons

If you’ve noticed an increase in the number of flies buzzing around you’re not imagining things. In fact, you could call this time of year “fly season” in southern Idaho.

Part of the reason you're noticing more flies is because there simply are more of them says Ian Robertson, a biology professor and insect ecologist at Boise State University.

Rick Strack / Boise State Public Radio

A slow-moving weather system in south-central Idaho that the National Weather Service is calling a 100-year storm dumped nearly 3 inches of rain on Twin Falls and caused widespread flooding.

Twin Falls City Manager Travis Rothweiler tells The Times-News that the city's drainage system on Wednesday became overwhelmed, causing flooded streets, homes and businesses.

Rothweiler says sewage backed up into seven homes in the city, and that state and federal agencies have been notified.

map courtesy of the Boise National Forest

A road used by recreationists in the Boise National Forest is closed due to flooding.  A Boise National Forest spokesman says the Middle Fork Boise River road is closed above Arrowrock Reservoir.

Thanks to early morning flash flooding, 15 miles of road from the junction of Slide Gulch and the Middle Fork Boise River Road are closed.

Forest officials say they’re working with the Atlanta Highway District to repair the road, but it could be closed for several days.

Tom Kelly / Flickr

Forecasters with the National Weather Service say storms will move into southern and central Idaho this afternoon. Some of the storms could produce heavy rain and flash flooding.

The system is a surge of monsoonal moisture approaching Idaho from the south. NWS Meteorologist Les Colin says an inch of rain could fall in some areas.

This summer's hot, dry weather has been a mixed blessing for Northwest farmers.

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