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The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
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Record-breaking rain drenches Anchorage, triggering road closures and a flood advisory
Anchorage experiences unprecedented rainfall, leading to road closures and flood advisories due to overflowing creeks and waterlogged streets.
Anchorage, Alaska, United States
Alaska Public Media
Chris Klint, Alaska Public Media - Anchorage

Weather Ups and Downs
Alaska experiences unusual weather with multiple false springs, marked by warm periods followed by heavy snow or cold, casting doubt on the arrival of summer.
Eagle River, Alaska, United States

Southcentral Alaska cold snap and surging natural gas demand put supply in question
A cold snap in Southcentral Alaska has led to increased natural gas demand, causing Enstar to struggle with supply due to equipment failure and technical issues.
Anchorage, Alaska, United States
Alaska Public Media
Casey Grove, Alaska Public Media - Anchorage

2 found dead after residential fires in Mat-Su
Two individuals died in separate fires in Mat-Su, with one victim found outside his home after escaping the blaze, potentially succumbing to extreme cold.
Palmer, Alaska, United States
Alaska Public Media
Chris Klint, Alaska Public Media - Anchorage

2 Anchorage commercial roof collapses reported in 2 days
Both buildings were occupied during the collapses but everyone got out safely and no injuries were reported, according to Anchorage Fire Department spokeswoman Lexi Trainer.
Anchorage, Alaska, United States
Chris Klint, Alaska Public Media - Anchorage

Roof of vacant, condemned Anchorage warehouse partially collapses under snow load
The warehouse at 4640 Gambell St. damaged Wednesday is owned by Marten Martensen, the primary owner of the Continental Auto Group in Anchorage. He was part of a group that purchased the property in October 2022 and briefly used it to store around 10,000 tires until last December’s successive snowstorms caused the structure to begin collapsing.

Anchorage Spenard Builders Supply facility suffers major snow-related roof collapse
The Spenard Builders Supply facility in Anchorage suffered a significant roof collapse due to heavy snow, causing no injuries but damaging the structure and nearby utilities.

Abundance of seeds on snow
Big snow falls, warm temperatures, and strong winds covers snow surface with a variety of seeds from trees.
Katie Spellman, Mike Brubaker, Lars Flora

Mat-Su schools closed Tuesday after blizzard hits power lines, highways
Mat-Su schools will be closed Tuesday due to a blizzard causing power outages and hazardous driving conditions.
Matanuska Valley, Alaska, United States

With Anchorage schools remote again, another storm hitting Southcentral Alaska
With Anchorage schools remote again due to a 17-inch snowfall and strong winds, another storm is hitting Southcentral Alaska, potentially causing power outages as trees fall on electric lines.

Monday storm again closes Anchorage, Mat-Su schools and state offices
A winter storm in Anchorage and Mat-Su, Alaska has caused closures of state offices, schools, and bus services, with reports of stranded vehicles and accidents, and up to a foot of snow expected in some areas.
Matanuska Valley, Alaska, United States

Southcentral Alaska schools closed amid snowstorm, power outages
Schools in Southcentral Alaska are closed due to a snowstorm and power outages, with the Seward Highway being deemed "impassable" and numerous vehicles stranded.

Alaskans drawn to alpine lakes for ‘once-in-a-decade’ ice skating conditions
Alaskans are taking advantage of rare ice skating conditions on alpine lakes in Chugach State Park, with hundreds of people hiking into the backcountry to skate on smooth ice in the shadow of iconic peaks.
Rabbit Lake, Alaska
Anchorage Daily News

Borough declares local disaster for Talkeetna flood damage
In less than a day, the riverbank was eroded back more than 60 feet, threatening some cabins near the river.
Talkeetna, Alaska, United States

Weather service warns that strong winds in Anchorage could lead to power outages and downed trees
Intermittent power outages continued across Anchorage Friday as high winds that started the day before toppled trees across the city.

Atmospheric river triggers flood watch for Anchorage and broad swath of Southcentral Alaska
Forecasters say they are measuring near-record moisture in a storm system expected to bring heavy rain and wind to the region, ramping up Friday night and into Saturday.
Anchorage Daily News

Signs of a wet summer are numerous around Cheney Lake
The rain in July has been persistent and in some cases intense. At Cheney Lake there is plenty of evidence about the wet summer.

Cold, wet weather delays lucrative peony harvest in Southcentral Alaska
Alaska is one of the only places in the world where peony flowers grow in the summer months. But the unusually cold, wet weather this year is delaying the blooms by weeks.
Willow, Alaska, United States
Tim Rockey, Alaska Public Media - Anchorage

Hatcher Pass Road opens for summer, but with winter lingering
The Hatcher Pass Road in Alaska has opened for the summer season, but deep snow remains at higher elevations, with crews spending the last week digging out the road over the pass before opening it.
Palmer, Alaska, United States
Anchorage Daily News

Anchorage has seen the windiest June so far in more than 50 years. Is more wind in our future?
The first half of June was Anchorage’s windiest in more than 50 years, the result of an unusually stormy spring in Alaska.

‘Unseasonably strong’ storm bringing heavy winds, rain to parts of Southcentral Alaska
An unusually strong storm for this time of year was bringing rain and heavy winds to parts of Southcentral Alaska on Sunday.

Anchorage sets new record for amount of snow on the ground in April
Snow dumped on Southcentral Alaska this weekend, with more than 8 inches falling in the Anchorage area and about 5 inches in the Matanuska-Susitna Borough. A Climatologist says this weekend has led to a record amount of snowpack this late in the season.
Wesley Early, Alaska Public Media - Anchorage

Anchorage officials report a second building collapse this weekend with no injuries
This is the second reported roof collapse in Anchorage in two days.

Anchorage has seen almost double its usual snowfall since December
Just this month, more than 23 inches of snow have fallen in Anchorage, 17.5 inches above normal. A weekend storm clogged Anchorage streets, creating hazardous road conditions. The Anchorage School District closed school buildings and canceled after-school activities, calling a remote learning day.

Mat-Su schools closed Tuesday amid Southcentral rain, icy roads
Light rain is expected to fall across much of the region Tuesday, with a storm possibly bringing more rain to Anchorage on Wednesday.
Palmer, Alaska, United States

Train derailed by avalanche debris
Alaska Railroad freight train derailed early Tuesday after plowing into avalanche debris south of Girdwood. The debris spread roughly 300 feet across the tracks.
Girdwood, Alaska, United States

Anchorage and Mat-Su schools closed after 3rd major snowstorm hits the region
Anchorage and Mat-Su Borough schools and state offices are closed Thursday as a third major winter storm this month coated the area with snow overnight Wednesday. “In the past 11 days, we’ve had 41.1 inches of snow which is a lot for Anchorage,” Baines said.

Anchorage digs out of more than a foot of wet, heavy snow
All schools in Anchorage and the Mat-Su Borough are closed Wednesday due to slick roads across the region, as snowfall continues. “This is the heaviest snowfall the Anchorage area has seen in over 20 years,” said state Department of Transportation spokesman Justin Shelby. “Our crews are keeping up as best they can.”

Late Alaska Winter
October flew by leaving us with a couple of light snowfalls. November came around with something slightly more impressive, but it wasn't the same. Mid December decided to make up for all of the snowfalls that we missed all at once, it seems like.
Richard L Thoman Jr, Mike Brook, Mackenzie Lord

Mat-Su flooding closes roads, threatens homes after deluge soaks Talkeetna Mountains
August 9, 2022 Borough officials said multiple roads were closed Tuesday and more were being monitored after several days of rain.
Houston, Alaska, United States

In Anchorage, June’s record heat and little rain ramp up holiday weekend fire risk
Anchorage saw temperatures spike above 60 degrees every day in June for the first time in recorded history. The city also experienced near record low precipitation: Only 1/10 of an inch of rain fell the entire month.

Firefighters work to contain Anchorage wildfire
The fire also comes as the state of Alaska enters its second highest level of fire preparedness, based on the high number of wildfires burning statewide and the possibility for more.

Thunderstorms in Southcentral Alaska spark at least 1 structure fire
It’s not often that Southcentral Alaska residents wake to thunder in the middle of the night. But what forecasters are calling an unusual storm moved from the Talkeetna Mountains into the Matanuska Valley and then Anchorage and south to the Kenai Peninsula from Wednesday night into Thursday morning. At least one lightning-caused structure fire was reported.

Dunleavy issues disaster declaration for Interior Alaska and Mat-Su storms
Extreme winds and cold temperatures have affected the areas. At one point over the weekend, 20,000 households in Mat-Su lost power.

The cold temperatures are early, but how unusual?
In the past 10 years there have only been three other weeks where Anchorage was this cold during a seven day period. Those occurred in: January 2020, January 2012, and November 2011.

Heavy rain on Halloween
The Matanuska Experiment Farm in Palmer says they got 1 1/8" of rain on Saturday. I think we got more than that, but based on their measurements I would revise my estimate down to 1 1/2 to 2 inches on Saturday.
Chickaloon, Alaska, United States

Heavy rain and wind take toll on Southcentral
A storm that hit Southcentral Alaska on Saturday night led to flooding in Girdwood, a landslide on the Sterling Highway and left thousands of homes without power throughout the region on Sunday morning. More than a foot of rain fell in Girdwood by Sunday.
Girdwood, Alaska, United States

Shift in Overall Weather Pattern Over Past Two Decades
"The first snowfall of this year happened so early that the leaves on the trees had not fallen yet. The weight of the snow on top of the trees that had not shed their leaves caused the trees to incur damage."
Eagle River, Alaska, United States

Anchorage's early snow unofficial but pleasing to zoo's polar bears, otters
Snow blanketed parts of Alaska’s largest city Tuesday morning, as Anchorage saw an early, though unofficial, first snowfall of the season. It's technically unofficial because none was reported at the National Weather Service’s official measuring spot on the city’s west side.

Sudden Snowstorm Out of Nowhere
From 10:45am until 11:50am a sudden flurry of snow came and went on an otherwise warm spring day.
Sutton-Alpine, Alaska, United States

Willow buds are happening
Buds are appearing right as we move into a 2-day cold spell of below zero nights. An adjacent willow budded a few weeks ago during a similar cycle of warmth followed by cold, and it appears to be putting some buds out, although on different branches.
Chickaloon, Alaska, United States

Arctic air hitting Anchorage like a freight train with -25 F wind chill
Unseasonably cold air swept into Alaska’s largest city Thursday, and forecasters expect it to stay through the weekend. The cold is plunging south into Alaska all the way from the North Pole, pushing a band of snow through Southcentral.

Ski areas across Alaska enjoy big-time snow days
For skiers and snowboarders looking for snowy fun within designated ski areas in Alaska, some spots have already extended their seasons.
Girdwood, Alaska, United States
Alaska's News Source

Storm blasts Southcentral Alaska with wind gusts over 100 mph
A storm bringing strong wind, rain and snow to Southcentral Alaska on Tuesday caused power outages from Anchorage to Whittier and damaged some homes on the Anchorage Hillside. The weather service reported a peak gust of 133 mph on Sunburst mountain on the western Kenai Peninsula.

Late Blooming Willow (genus Salix)
Wasilla, Alaska, United States

Waterfowl Disappearance and Other Lake Ecosystem Changes
Residents note significant changes in the Christiansen Lake ecosystem since 2019. This includes fewer nesting birds, fish, and mammals around the lake, while the leech population has increased along with the occurrence of algal blooms.
Talkeetna, Alaska, United States

Yes, several days of thunderstorms are unusual
After the thunderstorms that moved through Southcentral Sunday evening, Anchorage broke a new record…the most consecutive days with a thunderstorm: three.
ADN

Cold snap is expected to ease up around Anchorage — but only for a couple days.
January has so far been colder than average and the trend is expected to continue, breaking the 22-month trend of consecutively warmer-than-normal monthly temperatures.

Potentially longest cold snap in more than a decade for Anchorage
For the last four nights, temperatures dropped below zero in Anchorage, which isn't uncommon this time of year, but turns out, hasn't been very common in recent history.

2 rock slides close Seward Highway at miles 111 and 106.5
The highway closed after rocks covered the northbound lane at mile 111, near McHugh Creek. A second rock slide was reported near mile 106.5.

Thousands lose power from the Kenai Peninsula to the Mat-Su as winds ramp up
A wind gust of 113 mph was recorded Monday morning along the Seward Highway near Potter Marsh. Above-freezing temperatures are making side streets icy.

Man who found hiker trapped in Flattop Mountain avalanche said rescue was ‘a miracle’
After being buried, the trapped hiker was able to kick his legs free. A hiker passing by spotted his feet sticking out of the snow.

Susitna Valley gets a dump of snow as winds sweep through Anchorage
While Anchorage was getting hammered by wind, snow was piling up in the Susitna Valley — with a whopping 4 feet of snow at Hatcher Pass, according to a rough estimate.

Late Birch Leaf Edge Miner Damage
Browning on birch leaves before time for the fall season transition.
Lazy Mountain, Alaska, United States

Rare thunderstorm in Anchorage causes first lightning-related power outages in years
Lightning is unusual in a city that, according to the National Weather Service, sees fewer than two thunderstorms a year. It was the first time the power company had seen a lightning-related power outage in 15 years.

Big Sky Thunder
Thunderstorms are rare in Anchorage due to its proximity to the coast and protection by the Chugach Mountains from moist air traveling up from Southeast. Thursdays storm produced lightening that struck a power line and caused an outage, and produced nickel-sized hail in Eagle River.

Alyeska Resort closes mountain operations amid ‘severe weather’
Avalanche monitors say danger remains high in Turnagain Pass, Girdwood and Portage.

After 6 days, still no trace of couple who went missing at Big Lake
Hundreds of people have combed the terrain near Big Lake, but there’s still no sign of LaVerne and Van Pettigen.
Big Lake, Alaska, United States

‘Rare September thunderstorm’ brews after fall’s first big windstorm hits Southcentral
Lightning strikes seen Monday in Cook Inlet and on the Kenai Peninsula were heading toward South Anchorage, a meteorologist said.

Unusually warm weather ‘obliterating’ September records in Anchorage, while dry streak continues
You're not imagining things: September's weather has been one for the record books, for both the warm weather and unusual streak of sunny days.

Unusual September weather pattern brings sunshine to Southcentral Alaska
“We typically don’t see this type of pattern in September,” an Anchorage meteorologist said. Anchorage's record high temperature was broken on both Friday and Saturday.

Just before Independence Day holiday, Anchorage beats heat record
Anchorage hit 80 degrees Tuesday night, beating a record set in 1979, according to the National Weather Service.

Wind And More Wind
We have over two weeks of cold windy weather. It started in mid April around the time of the big wind storm. And in relation of the wind storm on April 24th, Rick Thoman wrote: "Winds this strong in the Anchorage are rare at this time of year. An unusually strong storm for the season in the southeastern Bering Sea produced southeast strong winds blowing across the Chugach Mountains. However, being April, the temperature profile of the atmosphere close to the ground was more conducive than in winter for allowing the very strong winds aloft to reach down to the ground.

National ski championships still a go at Kincaid Park
Though snow is scant in Anchorage, organizers are confident they will be able to host the Jan. 3-8 race series.

High winds, record-breaking warmth
Anchorage sidewalks were slick with ice and the roads were full of puddles because of unseasonably high temperatures.By mid morning the temperature had reached 46 degrees.

Prolonged Fog in Anchorage Area
Near record stretch of foggy days at Ted Stevens International Airport.

Dense Fog in Anchorage
This is the second longest period of visibility remaining this low at the Anchorage Airport.

Blanket of fog envelops Anchorage
A heavy fog that rolled into Anchorage in time for Halloween is expected to persist into Thursday afternoon.
Alaska Dispatch News

Alaska’s farming future is warmer, and probably weirder
The state's small farms are booming amid longer growing seasons and thriving farmers markets. But climate change has also made for less predictable weather.
Alaska Dispatch News

Funnel Cloud Spotted Near Flathorn Lake
Funnel cloud photographed from the air while flying near Flathorn Lake
Lower Susitna River Drainage, Alaska, United States

Miserable stretches of trail prompt Iditarod to move race start to Fairbanks
Major changes with the environment are creating trail hazards, an official said. The ceremonial start for 74 sled-dog teams will remain in Anchorage on March 4.
Alaska Dispatch News

Lowest Temperatures in Years Coming to Southcentral and Interior Alaska
In Anchorage, the temperatures forecast for this week won't come close to breaking any city records, Ahsenmacher said. But they are a departure from years of mild winters that rarely saw temperatures below zero.

Ski Jumpers Finally Compete
It has been three years since the Anchorage ski jumping club has been able to hold our New Year competition.

Storm Left Only a Few Inches of Snow
Fast moving winter storm left about 4 to 5 inches of snow in the Hunter Creek area, a tributary of the Knik River.
Butte, Alaska, United States

Widespread power outages reported as storm moves through Southcentral Alaska
Hundreds of Chugach Electric customers in Anchorage and Girdwood remained without power Wednesday morning amid outages from Fairbanks to Nikiski.

Anchorage braces for wind storm
High wind warning for Anchorage. Winds could reach 50 mph with gusts to 100 mph.
KTUU

Early Spring / Early Waterfowl
Early spring and early waterfowl
St. Mary's, Alaska, United States

March Rainbow
Have you ever heard of such a thing? In Anchorage?

Sure Has Been A Warm Winter
It was a very warm week of the 25th of January, on my way home it started raining pretty heavy, mind you, no snow, but rain. I was expecting maybe some wet snow, but it was not to be...
Wasilla, Alaska, United States

Unseasonably Warm
Very warm conditions for this time of year in Southcentral Alaska
Turnagain Arm, Alaska, United States

Warm Storms Bring Winter Melt
At lower elevations, there has been melting, hurricane force winds and rain, which have stripped away the snow and left the trails bare, wet, and icy.

DOT says weather likely caused rockslide that closed Seward Highway
DOT spokesperson Shannon McCarthy said the weather this week -- alternately freezing and thawing -- was likely the culprit.
Seward Highway  Alaska, USA

Summer Snow
7-27-14 Summer snow - Wasilla, Alaska, USA
Wasilla, Alaska, United States

Hot, dry weather brings wildfires near Palmer
Unseasonably warm, dry weather in a large section of the state set the stage for a roughly 20-acre wildfire near Palmer and kept authorities across Southcentral and Interior Alaska busy putting out backyard fires despite ongoing warnings against open burning.

Windy, No Snow
2-17-14 Windy, no snow - Wasilla, Alaska, USA

Mt. Alyeska closes due to unseasonable weather
Alyeska Ski Resort in Girdwood will not open for skiers and snowboarders Tuesday because of unseasonably warm temperatures and severe weather, according to a post on the resort's Facebook page.

Warm and Wet Halloween
Anchorage is having the warmest October on record with an average temperature of 43 degrees. That will beat the record set in 1936 and residents are remarking on the novelty of having green grass and rain on Halloween.

Anchorage ties record for most consecutive rainy days
Rain overnight in Anchorage pushed the number of consecutive rainy days in the city to 18 -- tying a record set in September 1919, the National Weather Service reports.

Alaska heat wave: Anchorage sets record for most consecutive 70-degree days
On Monday, Anchorage reached the 70-degree threshold for a record 14th straight day, breaking 2004's record of 13.
Washington Post

Heatwave has toddlers falling from windows
The Anchorage Police Department is warning parents to be cautious after three separate incidents in a week involving toddler-aged children falling out of windows opened in the warm weather.

Late Winter Storm
We are having an unseasonable snow storm in southcentral Alaska.

Drivers battle wet, icy roads and floods
Much of the state became one heck of an ice rink over the weekend, with temperatures spiking into the 40s in much of Southcentral Alaska and thawing reported as far north as Fairbanks.
Alaska Dispatch

Windy winter good for wind generation
Fire Island is producing more than expected for this time of year according to Ethan Schutt, senior vice president of land and development for Cook Inlet Region, Inc. (CIRI) the Alaska Native corporation that operates the wind farm. So far about 17,000 megawatt hours have been produced, enough to power roughly 6,500 Southcentral homes each month.
Alaska Dispatch

Snow Well Below Normal
Half of what we usually have this time of year.

Extreme Rain & Flooding
9-21-12 Extreme rain and flooding - Wasilla, Alaska, USA

Windfall creates flood hazard
9-5-12 Windfall causes flood hazard - Anchorage, Alaska, USA

Palmer digs out from major windstorm that prompted emergency declaration
Gusts over 80 mph pummeled the city, compacting snow and causing power outages for thousands. Nearly 20,000 Matanuska Electric Association members lost power Friday morning. On Point MacKenzie west of Wasilla, crews faced snow drifts so large that they needed snowmachines and snowshoes to reach areas where repairs were needed.

Avalanche leaves up to 80 feet of snow on upper Hiland Road in Eagle River but no homes hit
About 145 customers in the area were without power on Friday due to damaged equipment, according to Matanuska Electric Association. It’ll likely be at least several days before the road may be cleared.
Eagle River, Alaska, United States

Anchorage’s shift from drought to an onslaught of rain brings ‘weather whiplash extraordinaire’
And the rain is likely here to stay, at least for the foreseeable future.

Up to a foot of snow could fall on Anchorage Hillside through Friday morning
Snowfall amounts in the Anchorage Bowl could range from 3 inches on the east side to nothing on the west side, the Weather Service said.

As some in wind-blasted Mat-Su finally get power, others continue to contend with bursting pipes and frigid cold
Mat-Su schools will be closed again Wednesday, and 5,000 homes remained without electricity Tuesday night after a violent windstorm hammered the Valley.

Anchorage could see wettest July on record as continuing rain prompts flood advisories
Anchorage has already seen nearly 4 inches of rain so far this month, the weather service says.

Anchorage sees wettest first half of August ever recorded
Nearly 4 inches of rain has already fallen at Ted Stevens, with more rain on the way.

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