2 missing after 'atmospheric river' triggers major landslide in Alaska
By
Renee Duff, AccuWeather senior meteorologist
Updated Dec 4, 2020 7:02 PM EDT
At least six people were missing in Haines, Alaska, after a landslide buried homes in mud and debris on Dec. 2, destroying four of them.
One Alaskan town was covered in 9 feet of mud and debris after record rainfall triggered landslides, wiped out roadways and prompted evacuations during the middle of the week.
The community of Haines, located about 92 miles north of Juneau, Alaska, was nearly cut off from surrounding areas as the highway connecting the city to Canada was closed and the only road leading to the ferry terminal and barge dock was blocked by a significant landslide, according to the Anchorage Daily News. The landslide was first reported around 1:50 p.m. AST Wednesday.
Two people remain unaccounted for in the landslide, which destroyed four houses after the ground began to give way in the Beach Road area, the Alaska Department of Public Safety reported. Initially, six people were missing in the wake of the landslide, but four have been located, according to The Associated Press.
Search and rescue operations were suspended Wednesday evening, with local officials citing "rumbling unstable ground" as the reason efforts were called off.
Daylight is limited for search and rescue efforts due to the upcoming winter solstice. Areas around Juneau only experience around seven hours of daylight in early December.
The city of Haines told Beach Road residents on Wednesday that they were in "immediate danger" and to "evacuate now" following the landslide. The National Weather Service office in Juneau issued a flash flood warning for Haines on Wednesday, only the second time that this type of warning has ever been issued for part of southeastern Alaska, according to climatologist Brian Brettschneider.
On Wednesday afternoon, a Coast Guard helicopter was launched from Sitka to Haines to provide emergency support following the landslide, and a boat crew was dispatched from Juneau. Two Coast Guard cutters were also making preparations to sail to the area.
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“At this point we are aware that damage has occurred in the town of Haines following the report of multiple landslides in the borough,” Capt. Stephen White, commander of Coast Guard Sector Juneau, said in a statement. “The scope of the damage is unknown at this time, but we are proactively moving several assets and personnel to provide assistance to local first responders and the residents who may have been impacted by the landslides.”
Forecasters say a weather phenomenon known as an "atmospheric river" prompted the deluge.
"As deep tropical moisture slammed into the higher terrain around Juneau, this enhanced the amount of upward motion in the atmosphere and the amount of precipitation that was able to be produced," AccuWeather Senior Meteorologist Dan Pydynowski said.
"This very heavy rain then resulted in widespread flooding, mudslides and debris flows. In the mountains, this moisture caused snow that has been measured in feet," AccuWeather Meteorologist Ryan Adamson said.
Juneau has recorded over 6 inches of rain during the first two days of December -- a month when the city typically receives 5.84 inches in total. On Tuesday, Juneau beat out its single-day rainfall record of 4.62 inches set on Oct. 10, 1946, as 4.93 inches of rain poured down.
Strong winds also lashed the area amid the record-setting rain with Juneau clocking a gust of 60 mph, one of the highest gusts reported across the region.
The region will not catch a break from the rain and mountain snow as more storms are forecast to impact southeastern Alaska into the weekend.
"What's happening is you're getting storm after storm that is being directed right toward the Alaska Panhandle," AccuWeather Chief Broadcast Meteorologist Bernie Rayno said. "Those storms are lined up in the Pacific right now."
This satellite loop from early Thursday morning shows three storms in the northern Pacific that are tracking toward the Alaska Panhandle.
Given the saturated and unstable nature of the ground, any additional moisture could cause other areas of the earth to give way, leading to more damage.
These storms will also delay cleanup after Wednesday's landslide, as well as any search and rescue efforts.
"Haines is going to be needing lots of prayers," Haines Mayor Douglas Olerud said in a statement Wednesday afternoon. "We have several roads that have washed out, mudslides, and houses flooding. Crews have been working all night, but the amount of rain we are getting is making it difficult for them to address all the problems. Please be patient with each other. These are stressful times but Haines will come together and help each other."
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News / Severe Weather
2 missing after 'atmospheric river' triggers major landslide in Alaska
By Renee Duff, AccuWeather senior meteorologist
Updated Dec 4, 2020 7:02 PM EDT
At least six people were missing in Haines, Alaska, after a landslide buried homes in mud and debris on Dec. 2, destroying four of them.
One Alaskan town was covered in 9 feet of mud and debris after record rainfall triggered landslides, wiped out roadways and prompted evacuations during the middle of the week.
The community of Haines, located about 92 miles north of Juneau, Alaska, was nearly cut off from surrounding areas as the highway connecting the city to Canada was closed and the only road leading to the ferry terminal and barge dock was blocked by a significant landslide, according to the Anchorage Daily News. The landslide was first reported around 1:50 p.m. AST Wednesday.
Two people remain unaccounted for in the landslide, which destroyed four houses after the ground began to give way in the Beach Road area, the Alaska Department of Public Safety reported. Initially, six people were missing in the wake of the landslide, but four have been located, according to The Associated Press.
Search and rescue operations were suspended Wednesday evening, with local officials citing "rumbling unstable ground" as the reason efforts were called off.
Daylight is limited for search and rescue efforts due to the upcoming winter solstice. Areas around Juneau only experience around seven hours of daylight in early December.
The city of Haines told Beach Road residents on Wednesday that they were in "immediate danger" and to "evacuate now" following the landslide. The National Weather Service office in Juneau issued a flash flood warning for Haines on Wednesday, only the second time that this type of warning has ever been issued for part of southeastern Alaska, according to climatologist Brian Brettschneider.
On Wednesday afternoon, a Coast Guard helicopter was launched from Sitka to Haines to provide emergency support following the landslide, and a boat crew was dispatched from Juneau. Two Coast Guard cutters were also making preparations to sail to the area.
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“At this point we are aware that damage has occurred in the town of Haines following the report of multiple landslides in the borough,” Capt. Stephen White, commander of Coast Guard Sector Juneau, said in a statement. “The scope of the damage is unknown at this time, but we are proactively moving several assets and personnel to provide assistance to local first responders and the residents who may have been impacted by the landslides.”
Forecasters say a weather phenomenon known as an "atmospheric river" prompted the deluge.
"As deep tropical moisture slammed into the higher terrain around Juneau, this enhanced the amount of upward motion in the atmosphere and the amount of precipitation that was able to be produced," AccuWeather Senior Meteorologist Dan Pydynowski said.
"This very heavy rain then resulted in widespread flooding, mudslides and debris flows. In the mountains, this moisture caused snow that has been measured in feet," AccuWeather Meteorologist Ryan Adamson said.
Juneau has recorded over 6 inches of rain during the first two days of December -- a month when the city typically receives 5.84 inches in total. On Tuesday, Juneau beat out its single-day rainfall record of 4.62 inches set on Oct. 10, 1946, as 4.93 inches of rain poured down.
Strong winds also lashed the area amid the record-setting rain with Juneau clocking a gust of 60 mph, one of the highest gusts reported across the region.
The region will not catch a break from the rain and mountain snow as more storms are forecast to impact southeastern Alaska into the weekend.
"What's happening is you're getting storm after storm that is being directed right toward the Alaska Panhandle," AccuWeather Chief Broadcast Meteorologist Bernie Rayno said. "Those storms are lined up in the Pacific right now."
This satellite loop from early Thursday morning shows three storms in the northern Pacific that are tracking toward the Alaska Panhandle.
Given the saturated and unstable nature of the ground, any additional moisture could cause other areas of the earth to give way, leading to more damage.
These storms will also delay cleanup after Wednesday's landslide, as well as any search and rescue efforts.
"Haines is going to be needing lots of prayers," Haines Mayor Douglas Olerud said in a statement Wednesday afternoon. "We have several roads that have washed out, mudslides, and houses flooding. Crews have been working all night, but the amount of rain we are getting is making it difficult for them to address all the problems. Please be patient with each other. These are stressful times but Haines will come together and help each other."
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Keep checking back on AccuWeather.com and stay tuned to the AccuWeather Network on DirecTV, Frontier and Verizon Fios.
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