Hanukkah Eve windstorm of 2006

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Hanukkah Eve windstorm of 2006
Infrared satellite image provided by the US Naval Research Labortory.jpg
Powerful Hanukkah Eve Storm offshore Washington Coast taken on December 15, 2006 at 2:00 UTC.

Just previous to the windstorm, Seattle set a new record for rainfall in a single month with nearly 16 inches (410 mm) of rain falling in November 2006, much of it from a series of Pineapple Express rain storms in the first week of the month. Combined with several days of snow and ice later in the month, and continuing rain throughout the first half of December 2006, the ground in the Puget Sound region was extremely waterlogged and loose.

Additionally, large portions of the planted trees in the Seattle metropolitan area were at the end of their lifespan, being some 60 to 70 years of age or more. To compound this, many tree species had shallow root systems that did not extend past the waterlogged soil.

The result of these factors was that many thousands of large, old trees easily uprooted and tipped over, frequently with tons of mud captured in their roots, and crashed into homes and power lines.

The major tree loss in old growth areas was at borders where more recent logging has occurred. Forest cover holds together as a group during strong winds and these cuts into the original areas created open edges for trees to be hit horizontally by wind.

Oregon

The high winds also left damage in Oregon. Extensive tree damage was reported, some of which fell on houses or on power lines. More than 350,000 customers lost power at the peak of the storm. Shelters were opened in the coastal regions as a result of the storm damage. [16] Governor Ted Kulongoski requested a federal disaster declaration on January 31, 2007. [17]

Two people were killed due to a house fire in Seaside during a power outage. [18] The severe weather also hampered the rescue efforts of three missing climbers on Mount Hood; one climber was later found dead and the other two are missing and presumed dead. On the Oregon Coast, three sailors hired to sail a catamaran from South Africa to Seattle went missing. The 50 ft (15 m) boat was found overturned on a beach near Lincoln City the morning of December 15. The crew was last seen leaving San Francisco on December 8. [19] The search for the three sailors was called off on the afternoon of December 16. [20]

Animation of Hanukkah Eve Storm approaching the West Coast of North America Nwstorms-t.gif
Animation of Hanukkah Eve Storm approaching the West Coast of North America

British Columbia

For British Columbia, the storm followed several others that occurred in the preceding weeks. The most high-profile damage caused by the storm was the breaking and uprooting of around 10,000 trees in Stanley Park in downtown Vancouver. In addition to Stanley Park, extensive damage was reported to trees around the Lower Mainland, which also took power lines down with them as well as a number of houses, notably on exposed areas of West Vancouver facing west over Howe Sound. BC Ferries service was disrupted along the coast, along with other transit disruption, closed roads, and closed schools. At its peak, BC Hydro reported that over 250,000 customers were without power. [21]

An elderly couple died of asphyxiation as a result of carbon monoxide poisoning in Burnaby. [22]

Total damage

Washington and Oregon suffered a total of $220 million ($279,988,194.44 in 2019) in insured damage according to the Northwest Insurance Council. Washington suffered $170 million in damage and Oregon $50 million. [23] $47 million in damage to public property resulted from the windstorm in Washington state with "several million dollars in damage" to public property in Oregon. [24]

In British Columbia, insured damage was expected to reach $80 million and at Vancouver's Stanley Park repairs were expected to cost $9 million because of numerous fallen trees and damage to the seawall. [25] [26]

Post-storm controversy

Landslide in the Madison Valley neighborhood of Seattle Madisonvalleylandslide.jpg
Landslide in the Madison Valley neighborhood of Seattle

Soon after the windstorm, controversy began in Seattle over the drowning death of Kate Fleming as well as the issue of possible problems with storm water drainage which some believe may have led to her death and the flood damage of several homes on the evening of December 14. Seattle received 0.86 inches (22 mm) of rain between 4 p.m. and 5 p.m., leading to major urban flooding. [27] A city report released on February 27, 2007 stated that sweeping changes were necessary in emergency response services to better mitigate the effects of a natural disaster on the city, such as the establishment of a 311 hot line for non-emergency calls, the installment of emergency generators in every fire station in the city and reconsideration of relying on builders to ensure that storm drains aren't clogged by sediment filters.

Home of Kate Fleming, killed in the storm Katefleminghome.jpg
Home of Kate Fleming, killed in the storm

The flooding which lead to the death of Fleming was investigated by Denver-based engineering firm CH2M Hill on behalf of the City of Seattle. In its report, released in April 2007, investigators identified several factors, including an unprecedented and unanticipated amount of rainfall, the failure of a nearby retaining wall, and the inadequate design of the drainage system around Fleming's home. [28]

Peak wind gusts

Wind gusts were as high as 70 to 100 mph or more in some locations along the Washington and Oregon coasts, as well as the mountains. Interior locations of Puget Sound and Willamette Valley had gusts in the 50-80 mph+ range. [29] [30] The Seattle–Tacoma International Airport reached a wind-speed record of 69 mph; the mark would remain the historic high at the airfield as of 2016. [3]

In addition to the wind, record-breaking rainfall fell in Seattle with nearly an inch in a one-hour period the afternoon of December 14. Such a rainfall event is only expected in Seattle an average of once every 99 years. [31]

See also

References

  1. "Windstorm aftermath still felt". Spokesman Review.
  2. "Major windstorm has a name by Seattle-PI". Seattlepi.com. March 1, 2007. Retrieved September 25, 2013.
  3. 1 2 Sistek, Scott (December 14, 2016). "Dec. 14-15, 2006: Historic Hanukkah Eve windstorm pummeled Western Washington". KOMO 4 News (Seattle, Washington). Retrieved November 14, 2023. Article contains a copy of a live blog during the storm and an original Associated Press article from December 15, 2006
  4. "Record winds leave 4 dead, more than 1 million in the dark". Komo-Tv. December 14, 2006. Retrieved July 22, 2016.
  5. 1 2 "Storms Leave 4 Dead, 1M Without Power". Kirotv.com. Archived from the original on September 28, 2011. Retrieved September 25, 2013.
  6. "Storm death toll reaches 8 as 200,000 still without power". Komotv.com. December 16, 2006. Retrieved July 22, 2016.
  7. "Associated Press/Foxnews.com". Foxnews.com. Retrieved September 25, 2013.
  8. "Seattle storm knocks out Microsoft campus" on vnunet Archived 2007-09-30 at the Wayback Machine
  9. "Obit for Randy Lee Bacus".
  10. "His father". November 26, 2006.
  11. "Carbon-monoxide poisoning kills Burien man by Seattle Times". Archives.seattletimes.nwsource.com. January 24, 2007. Retrieved September 25, 2013.
  12. "Hunukkah [sic] eve wind storm ravages Western Washington on December 14 and 15, 2006" by History Link
  13. With power out, Seattle papers use News Tribune’s presses | TheNewsTribune.com | Tacoma, WA Archived March 27, 2007, at the Wayback Machine
  14. Carbon Monoxide Warnings Archived February 5, 2007, at the Wayback Machine
  15. Storm’s latest: Dirty skies | TheNewsTribune.com | Tacoma, WA Archived January 7, 2007, at the Wayback Machine
  16. Local News | kgw.com | News for Oregon and SW Washington Archived December 20, 2006, at the Wayback Machine
  17. "January 31, 2007 OR Press Release". Governor.oregon.gov. Retrieved September 25, 2013.
  18. Local News | kgw.com | News for Oregon and SW Washington Archived September 27, 2007, at the Wayback Machine
  19. Oregon. "Deaths, close calls and now the mess". Oregonlive.com. Retrieved September 25, 2013.
  20. "Coast Guard calls off search for missing boaters". Oregonlive.com. Retrieved September 25, 2013.
  21. "B.C. reels after third major storm knocks out power". CTV.ca. September 21, 2013. Archived from the original on January 28, 2007. Retrieved September 25, 2013.
  22. "2 dead in B.C. in aftermath of windstorm" by CBC
  23. "Windstorm insurance claims $220 million total". Archives.seattletimes.nwsource.com. Retrieved September 25, 2013.
  24. "February 22, 2007 - WA Press Release". Governor.wa.gov. Archived from the original on September 29, 2013. Retrieved September 25, 2013.
  25. Vancouver, The (December 19, 2006). "Insurance claims could hit $80m". Canada.com. Archived from the original on October 20, 2013. Retrieved September 25, 2013.
  26. "Stanley Park restoration cost rises to $9 million - CanWest News Service". Canada.com. January 27, 2007. Archived from the original on September 21, 2013. Retrieved September 25, 2013.
  27. "Faulty storm drains may have led to woman's death in basement" by Seattle P-I [ dead link ]
  28. Jean, Sara (April 20, 2007). "Local News | Anatomy of Madison Valley's fatal December flood". Community.seattletimes.nwsource.com. Retrieved September 25, 2013.
  29. Read, Wolf. "December 2006 Windstorm". Climate.washington.edu. Retrieved September 25, 2013.
  30. "Wind Storm Rips Through NW Oregon" by Oregon Climate Service
  31. "Too much water, too many emergency calls are factors in basement death" by Seattle P-I [ dead link ]