Weathering the Winter Season
It’s important to understand the differences behind National Weather Service’s advisories, watches and warnings.
An advisory is a “heads-up” that conditions are likely for dangerous weather. Advisories are issued when weather conditions will cause a significant inconvenience and, if ignored, could lead to hazardous consequences.
A watch is stronger than an advisory. It tells you that hazardous weather is likely in the next 12-48 hours. Watches are issued to give you time to prepare and plan for weather threats. When a watch is issued, it’s prudent to listen to NOAA Weather Radio All Hazards and check the forecast frequently atNOAA’s National Weather Service Web site (http://www.weather.gov/).
A warning means a threat is occurring or is imminent, and you need to take protective action.
Pay close attention to weather forecasts and listen for advisories, watches and warnings like these:
• Winter Weather Advisory – Expect two or more of the following weather conditions: snow,
freezing rain or drizzle, sleet or blowing snow. Be prepared for hazardous driving conditions.
• Winter Storm Watch – In the next 12-48 hours, severe winter weather conditions are favorable for heavy snow, blizzard conditions, freezing rain or sleet.
• Winter Storm Warning – This means that severe weather is imminent or has already begun.
Expect any combination of heavy snow, freezing rain, sleet and strong winds.
• Blizzard Warning – Blizzards are the most dangerous winter storms. A blizzard is heavy snow and strong winds (35 mph or greater) that combine to produce blinding snow with near zero visibility, deep drifts, and a life-threatening wind chill. (http://www.noaa.gov/features/03_protecting/index.html)
Showing posts with label warning. Show all posts
Showing posts with label warning. Show all posts
Monday, December 7, 2009
Tuesday, October 20, 2009
New Winter Weather Warning
The Pacific Northwest does not get hurricanes, but it does get hurricane force winds.
Across eastern Washington, eastern Oregon, Idaho and Montana:
In January 2008 a powerful wind storm in Walla Walla, WA and Milton Freewater, OR is a recent and striking example. Wind gusts exceeding 70 mph caused widespread damage. Hundreds of trees were downed, power lines were damaged, vehicles were blown off the road, and even houses were damaged during this event.
Across western Washington and western Oregon: The best example was the nation's strongest non-tropical windstorm ever---the Columbus Day storm of 1962. This storm produced hurricane force winds across western Oregon and Washington. Winds of 150 mph (category 4 hurricane force) winds rocked the coastal areas, killing 46 persons, injuring hundreds more and knocking out power for several million people. Damage was widespread, with buildings, schools and thousands of homes either destroyed or damage. Other notable windsstorms of the past: the Great Olympic Blowdown of 1921, the November 13th/15th 1981 Twin Wind Storms, the Inauguration Day storm of 1993, and most recently the Great Coastal Gale of December 2007.
Are you ready for the next windstorm?
Windstorms bring down trees and power lines, and produce much blowing debris. Falling trees and blowing debris cause the most fatalities.
Be sure to have your 3-day emergency preparedness kit ready at home, school and/or at work. This kit should include water and non-perishable food for each person, and AM/FM battery-powered radio, along with flashlights and extra batteries. Be sure to include vital medications, sleeping bags, blankets and warm clothing.
In addition, inspect your home and grounds each year for nearby trees that may fall and damage your home. Ensure the trees are healthy and trimmed, and you home, school or business is structurally sound. It is also a good idea to bring lightweight items in out of the weather, or tie them down. During strong gusty winds, such items can become dangerous missiles. These precautions will help ensure that you are ready for the next big blow.
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Additional Links of Interest...
Pacific NW Windstorm Brochure (.pdf)
Past Windstorms of Oregon, including Columbus Day Storm
Historic Windstorm Photographs (mostly NW Oregon/SW Washington)
Each local office may have photographs online (see office links below)
Remember, in times of hazardous winter weather, you can get all these vital NOAA/National Weather Service messages via NOAA Weather Radio, your favorite local media, or through NOAA's National Weather Service websites.
Across eastern Washington, eastern Oregon, Idaho and Montana:
In January 2008 a powerful wind storm in Walla Walla, WA and Milton Freewater, OR is a recent and striking example. Wind gusts exceeding 70 mph caused widespread damage. Hundreds of trees were downed, power lines were damaged, vehicles were blown off the road, and even houses were damaged during this event.
Across western Washington and western Oregon: The best example was the nation's strongest non-tropical windstorm ever---the Columbus Day storm of 1962. This storm produced hurricane force winds across western Oregon and Washington. Winds of 150 mph (category 4 hurricane force) winds rocked the coastal areas, killing 46 persons, injuring hundreds more and knocking out power for several million people. Damage was widespread, with buildings, schools and thousands of homes either destroyed or damage. Other notable windsstorms of the past: the Great Olympic Blowdown of 1921, the November 13th/15th 1981 Twin Wind Storms, the Inauguration Day storm of 1993, and most recently the Great Coastal Gale of December 2007.
Are you ready for the next windstorm?
Windstorms bring down trees and power lines, and produce much blowing debris. Falling trees and blowing debris cause the most fatalities.
Be sure to have your 3-day emergency preparedness kit ready at home, school and/or at work. This kit should include water and non-perishable food for each person, and AM/FM battery-powered radio, along with flashlights and extra batteries. Be sure to include vital medications, sleeping bags, blankets and warm clothing.
In addition, inspect your home and grounds each year for nearby trees that may fall and damage your home. Ensure the trees are healthy and trimmed, and you home, school or business is structurally sound. It is also a good idea to bring lightweight items in out of the weather, or tie them down. During strong gusty winds, such items can become dangerous missiles. These precautions will help ensure that you are ready for the next big blow.
--------------------------------------------------------------------------------
Additional Links of Interest...
Pacific NW Windstorm Brochure (.pdf)
Past Windstorms of Oregon, including Columbus Day Storm
Historic Windstorm Photographs (mostly NW Oregon/SW Washington)
Each local office may have photographs online (see office links below)
Remember, in times of hazardous winter weather, you can get all these vital NOAA/National Weather Service messages via NOAA Weather Radio, your favorite local media, or through NOAA's National Weather Service websites.
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