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Rain-swollen Su Valley creeks threaten to flood

About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Two large trees fell across Elmore Road near the intersection of Abbott Road on Tuesday evening, September 18, 2012. Maureen Burris, whose house the trees were near, said she lost several other trees in the windstorm two weeks ago.
Marc Lester / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A piece of wood was embedded into the windshield of Brian Christie's car when a construction site guard shack crushed his vehicle after being lifted into the air by a swirling wind gust that he estimated at 100 mph on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012. Christie he was walking out to his car at the time of the wind gust and said, "I was 60 seconds away from being dead."
BILL ROTH / Anchorage Daily News
A Municipality of Anchorage crew clears wind storm debris from Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A swirling wind gust lifted a construction site guard shack into the air as it smashed through a fence, crushed a parked car, before coming to rest across a street on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Water streams off the Glen Alps parking lot during heavy rains Tuesday evening September 18, 2012 in Chugach State Park.
ERIK HILL / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
Brian Christie describes a swirling wind gust that he witnessed lift a construction site guard shack into the air as it smashed through a fence, crush his a parked car, before coming to rest across a street on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012. Christie estimated the wind gust at 100 mph. He was walking out to his car at the time of the wind gust and said, "I was 60 seconds away from being dead."
BILL ROTH / Anchorage Daily News
A Municipality of Anchorage workers chain saws a downed cottonwood tree across Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
High school runners lean back into the strong wind while taking a break from running. About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Gusting winds pop open mailboxes Tuesday evening September 18, 2012 on the Anchorage Hillside.
ERIK HILL / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
Brian Christie describes a swirling wind gust that he witnessed lift a construction site guard shack into the air as it smashed through a fence, crush his a parked car, before coming to rest across a street on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012. Christie estimated the wind gust at 100 mph. He was walking out to his car at the time of the wind gust and said, "I was 60 seconds away from being dead."
BILL ROTH / Anchorage Daily News
Chris Hester helps clear a cottonwood tree from Elmore Road at the intersection with Abbott Road Tuesday evening September 18, 2012 in south Anchorage.
ERIK HILL / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
Firefighters from Joint Base Elmendorf-Richardson responded to the localized wind gust that damaged vehicles and buildings at a construction site on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Signs topple in gusting winds including along Prominence Pointe Drive Tuesday evening September 18, 2012 on the Anchorage Hillside.
ERIK HILL / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Gusting winds cause a cottonwood tree to slowly descend toward Elmore Road Tuesday evening September 18, 2012 just north of South High School.
ERIK HILL / Anchorage Daily News
Page Spencer and her dog Piper didn't let Wednesday's windstorm stop them from a walk on Powerline Trail near Glen Alps Trailhead on September 19, 2012.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Trees and signs bend in the wind Tuesday evening September 18, 2012 along Romania Drive on the Anchorage Hillside.
ERIK HILL / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Gusting winds whip the Hillside Tuesday evening September 18, 2012 in a view from Doggie Avenue.
ERIK HILL / Anchorage Daily News
A child leans into the strong wind after exiting Bear Valley Elementary School during Wednesday's windstorm on September 19, 2012.
Marc Lester / Anchorage Daily News
A Municipality of Anchorage crew clears downed cottonwood trees from along Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Two large trees fell across Elmore Road near the intersection of Abbott Road on Tuesday evening, September 18, 2012. Maureen Burris, whose house the trees were near, said she lost several other trees in the windstorm two weeks ago.
Marc Lester / Anchorage Daily News
Sandy Malbick braces herself against a fence while she plays fetch with her dog, Peanut, during Wednesday's windstorm on September 19, 2012.
Marc Lester / Anchorage Daily News
A Municipality of Anchorage crew clears downed cottonwood trees from along Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A swirling wind gust lifted a construction site guard shack into the air as it smashed through a fence, crushed a parked car, before coming to rest across a street on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Water streams off the Glen Alps parking lot during heavy rains Tuesday evening September 18, 2012 in Chugach State Park.
ERIK HILL / Anchorage Daily News
Page Spencer and her dog Piper didn't let Wednesday's windstorm stop them from a walk on Powerline Trail near Glen Alps Trailhead on September 19, 2012.
Marc Lester / Anchorage Daily News
Fred Yawit stands amid the cottonwood tress which were blown down in the backyard of his Newcomb Drive home by an over night windstorm in east Anchorage on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
High school runners lean back into the strong wind while taking a break from running. About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Gusting winds pop open mailboxes Tuesday evening September 18, 2012 on the Anchorage Hillside.
ERIK HILL / Anchorage Daily News
Signs topple in gusting winds including along Prominence Pointe Drive Tuesday evening September 18, 2012 on the Anchorage Hillside.
ERIK HILL / Anchorage Daily News
Mail boxes lie in the middle of Carita Lane off of DeArmoun Road as high winds blast the hillside on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
An overnight wind storm blew down trees in the back yard of a home near the intersection of Newcomb Drive and Emmanuel Drive in east Anchorage on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
Firefighters from Joint Base Elmendorf-Richardson responded to the localized wind gust that damaged vehicles and buildings at a construction site on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Trees and signs bend in the wind Tuesday evening September 18, 2012 along Romania Drive on the Anchorage Hillside.
ERIK HILL / Anchorage Daily News
High winds batter the hillside in Bear Valley off of Clark's Road on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
An overnight wind storm blew down trees in the back yard of a home near the intersection of Newcomb Drive and Emmanuel Drive in east Anchorage on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
Page Spencer and her dog Piper didn't let Wednesday's windstorm stop them from a walk on Powerline Trail near Glen Alps Trailhead on September 19, 2012.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Josh Hendrickson and Andrew Krug, with Tall Trees, feed cottonwood branches into a chipper at Fred Yawit Newcomb Drive home in east Anchorage on Wednesday, September 19, 2012. Cottonwood trees were blown down by an overnight windstorm.
BOB HALLINEN / Anchorage Daily News
A child leans into the strong wind after exiting Bear Valley Elementary School during Wednesday's windstorm on September 19, 2012.
Marc Lester / Anchorage Daily News
A Municipality of Anchorage crew clears downed cottonwood trees from along Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A piece of wood was embedded into the windshield of Brian Christie's car when a construction site guard shack crushed his vehicle after being lifted into the air by a swirling wind gust that he estimated at 100 mph on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012. Christie he was walking out to his car at the time of the wind gust and said, "I was 60 seconds away from being dead."
BILL ROTH / Anchorage Daily News
A Municipality of Anchorage crew clears wind storm debris from Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
Sandy Malbick braces herself against a fence while she plays fetch with her dog, Peanut, during Wednesday's windstorm on September 19, 2012.
Marc Lester / Anchorage Daily News
A Municipality of Anchorage crew clears downed cottonwood trees from along Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
Brian Christie describes a swirling wind gust that he witnessed lift a construction site guard shack into the air as it smashed through a fence, crush his a parked car, before coming to rest across a street on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012. Christie estimated the wind gust at 100 mph. He was walking out to his car at the time of the wind gust and said, "I was 60 seconds away from being dead."
BILL ROTH / Anchorage Daily News
A Municipality of Anchorage workers chain saws a downed cottonwood tree across Chester Creek near Knights Way in east Anchorage on Wednesday, September 19, 2012. Trees along the greenbelt were blown down in the overnight windstorm.
BOB HALLINEN / Anchorage Daily News
Page Spencer and her dog Piper didn't let Wednesday's windstorm stop them from a walk on Powerline Trail near Glen Alps Trailhead on September 19, 2012.
Marc Lester / Anchorage Daily News
Fred Yawit stands amid the cottonwood tress which were blown down in the backyard of his Newcomb Drive home by an over night windstorm in east Anchorage on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
Brian Christie describes a swirling wind gust that he witnessed lift a construction site guard shack into the air as it smashed through a fence, crush his a parked car, before coming to rest across a street on Joint Base Elmendorf-Richardson on Wednesday morning, Sept. 19, 2012. Christie estimated the wind gust at 100 mph. He was walking out to his car at the time of the wind gust and said, "I was 60 seconds away from being dead."
BILL ROTH / Anchorage Daily News
Chris Hester helps clear a cottonwood tree from Elmore Road at the intersection with Abbott Road Tuesday evening September 18, 2012 in south Anchorage.
ERIK HILL / Anchorage Daily News
Mail boxes lie in the middle of Carita Lane off of DeArmoun Road as high winds blast the hillside on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
An overnight wind storm blew down trees in the back yard of a home near the intersection of Newcomb Drive and Emmanuel Drive in east Anchorage on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Gusting winds cause a cottonwood tree to slowly descend toward Elmore Road Tuesday evening September 18, 2012 just north of South High School.
ERIK HILL / Anchorage Daily News
High winds batter the hillside in Bear Valley off of Clark's Road on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
An overnight wind storm blew down trees in the back yard of a home near the intersection of Newcomb Drive and Emmanuel Drive in east Anchorage on Wednesday, September 19, 2012.
BOB HALLINEN / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Gusting winds whip the Hillside Tuesday evening September 18, 2012 in a view from Doggie Avenue.
ERIK HILL / Anchorage Daily News
About 50 runners from the Grace Christian School cross country team trained at Storck Homestead Park along Clarks Road on the Anchorage Hillside during a windstorm on Wednesday, September 19, 2012. Coach Nate Davis said the runners stayed away from trees that could've fallen in the open field. The experience, he said, would be a good memory for the kids and might be similar to conditions they'll face at upcoming meets.
Marc Lester / Anchorage Daily News
A localized wind gust damaged vehicles and buildings at a construction site on Joint Base Elmendorf-Richardson on Wednesday, Sept. 19, 2012.
BILL ROTH / Anchorage Daily News
Josh Hendrickson and Andrew Krug, with Tall Trees, feed cottonwood branches into a chipper at Fred Yawit Newcomb Drive home in east Anchorage on Wednesday, September 19, 2012. Cottonwood trees were blown down by an overnight windstorm.
BOB HALLINEN / Anchorage Daily News

Updates from the storm hitting Southcentral Alaska on Wednesday:

Update, 7:20 p.m.: The Mat-Su Borough is recommending that residents in an area east of Willow evacuate because of rising water on Willow Creek.

This from Mat-Su Borough spokesman Patty Sullivan at 7:20 p.m.:

Evacuation recommended for Willow Creek residents along Shirley Town Road to Parks Highway

Willow Creekside Road is flooding

Deneki Road is compromised

The access to Willow-Fishhook may be cut off soon by water

The area of concern: Shirley Town Drive to Parks Highway along the Willow Creekside and Willow Fishhook Roads. The water is fast moving. You can stay put if you feel safe, away from water. But if you can stay elsewhere tonight, it's recommended.

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Update, 7 p.m.:About 250 Chugach Electric customers were without power as of 7 p.m. on Wednesday, said company spokesman Phil Steyer.

At the peak about 2,000 people were without power.

Scattered Wednesday outages in South Anchorage and East Anchorage and along the Turnagain Arm were caused by downed trees, he said.

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Update, 6:50 p.m.: School is cancelled for elementary, middle and high school students in Seward Thursday, according to a bulletin from the City of Seward.

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Update, 6 p.m.: Rivers and creeks in the Susitna Valley were rising Wednesday after continuing heavy rains, according to a dispatch from Mat-Su Borough emergency managers.

Some creeks and rivers were at minor flood stage or near it Wednesday. The biggest concerns were Montana Creek, Willow Creek and Moose Creek, near Talkeetna, according to the report. Moose Creek was beginning to spill over Oilfield Road.

Meanwhile, a levee at Yoder Road over Montana Creek in the Susitna Valley was severely eroded by rising water. On Wednesday night, emergency managers had rock on the way to fix the levee.

In Butte, volunteer firefighters removed nine trees from area roadways.

"The crews are reporting seeing 50' cottonwoods being snapped halfway up," the report said.

Mat-Su Borough spokeswoman Patty Sullivan sent this update:

Ten trucks loaded with rocks are heading north on the Parks Highway near Talkeetna to help protect a rapidly eroding dike on Yoder Road at Montana Creek by about 5:30 tonight. The levee protects a road that leads to some 30 homes. This is the area most in need during a wet, windstorm that has flooded some Mat-Su creeks, snapped 50-foot cottonwoods on roadways in Butte, and zapped power for 2,500 presently. The Borough continues its 24-hour watch and response in the Emergency Operations Center.

- Michelle Theriault Boots

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Update, 5:20 p.m.: Alaska Airlines is in the process of sending flights diverted to Fairbanks Wednesday due to stormy weather back to their original destination of Anchorage, says spokeswoman Bobbie Egan.

The five diverted flights are being launched every half-hour and will start arriving in Anchorage between 4-4:30 p.m., she said.

The airline has also cancelled a handful of flights out of Anchorage because of the storm.

Check online at alaskaair.com for current flight status updates.

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Update, 3:40 p.m.: The City of Seward declared an emergency Wednesday after heavy rains flooded area roads.

Officials say a number of roads are unsafe or have been closed.

Here are the latest advisories from the City of Seward:

- Seward Highway between mile 3.5 and 7 is under a traffic advisory but is open for limited travel. Use extreme caution. Water on the road.

- Exit Glacier Road is closed at mile 2.8.

- Portions of the Dieckgraeff Road are closed.

- Dora Way is closed.

- Phoenix/Chiswell Roads are closed.

- Port Road is closed, blocked at Alameda and Leirer and unsafe.

- Dairy Hill Lane is closed.

- A travel advisory has been issued for Lowell Point Road. Use extreme caution if traveling due to intermittent landslides.

No evacuations due to flooding were mandatory as of 2:45 p.m., but people living in the Old Mill Subdivision west of Lost Creek can call the city's Emergency Operations Center for help at 224-4041. A shelter has been established at Seward High School.

In the past 24 hours the town has received 4.36 inches of rainfall, according to the National Weather Service. Some 2.8 inches of rain has fallen in the last six hours alone.

A Weather Service flood warning that expires at 6 p.m. tonight will likely be extended, said spokesman Dave Stricklan.

"Not only you got (heavy rain) in Seward you got it up in the mountains and it's coming in to town," Stricklan said.

- Michelle Theriault Boots

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Update, 3:30 p.m.: Alaska Airlines spokeswoman Bobbie Egan said five flights bound for Anchorage today have been diverted to Fairbanks as they wait out the storm.

The flights - two from Seattle, one from Barrow, one from Nome and one from Chicago - had a total of about 500 passengers on board.

The airline is monitoring weather and waiting for an improvement before routing the planes to Anchorage, she said.

"It's currently not safe to fly into or out of Anchorage International Airport," she said.

Meanwhile, Chugach Electric said that as of 3 p.m. about 100 customers were still without power.

Crews had been working to fix outages at about 1,200 homes in the Rabbit Creek/Goldenview areas since morning.

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Update, 1:35 p.m.: Seven inbound flights to Ted Stevens Anchorage International Airport have been diverted because of weather as of about 1:30 p.m., said airport spokeswoman Trudy Wassel.

Two are Alaska Airlines commercial flights. The other five are cargo.

The airport is encouraging passengers to check with individual airlines for information on flight diversions, Wassel said.

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Update, 12:05 p.m.: The latest windstorm hitting Southcentral Alaska is expected to peak in Anchorage during the early afternoon Wednesday, according to the National Weather Service.

The high wind warning remains in effect until 6 p.m. for the Anchorage area. A flood advisory is also in effect.

Here's what to expect for the afternoon, according to Dave Stricklan of the NWS:

- Wind speeds will reach 50-70 mph, increasing to 85-110 mph on the upper Hillside.

- East Anchorage and the lower Hillside will see 20-40 mph winds with gusts of 50-70.

- Lower elevations of West and South Anchorage will see 10-25 mph winds with gusts up to 35 mph.

- On Turnagain Arm, winds are expected to peak at 110 mph.

Heavy rain is also part of the package. The potential for uprooted trees and downed power lines remains, he said.

At Joint Base Elmendorf-Richardson, a strong, sudden gust of wind damaged a construction trailer near Fifth and D streets, on the Fort Richardson side, at about 10:30 a.m., said base spokesman Luke Waack.

Part of Fifth Street is closed while crews remove debris. No injuries have been reported, Waack said.

-- Michelle Theriault Boots

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Update, 11:15 a.m.: Chugach Electric reported about 1,200 customers were without power at 10:30 a.m. Most of the outages had to do with problems with a feeder line out of a substation in the Rabbit Creek/Goldenview area, the utility reported.

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Original story:

A National Weather Service wind warning remains in effect for Anchorage until 6 p.m. today and a flood advisory until 6 p.m. Thursday.

Winds will pick up along Turnagain Arm and the upper Hillside through this morning, with gusts eventually peaking at 85 to 110 mph, the weather service says. On the lower Hillside and in East Anchorage and Eagle River, gusts up to 70 mph are forecast.

The rest of the Anchorage Bowl will experience winds of 20 to 40 mph with gusts to 55 mph by late morning and continuing into the afternoon, the weather service said.

In the Matanuska Valley, wind gusts up to 60 mph are expected to develop by late afternoon. Portage Valley is predicted to see gusts up to 85 mph developing this morning.

On Tuesday evening, the weather service said, a disturbance moving north over Cook Inlet surprised forecasters by bringing wind gusts up to 74 mph into the Anchorage area ahead of the main storm. The winds caused scattered power outages but had diminished over much of the city by midnight.

Watch: JBER reactions to wind damage
Photos: Tuesday and Wednesday windstorms
Current Alaska weather warnings

Anchorage Daily News / adn.com