Widespread Precipitation and Gusty Winds in the West; Snow from the Great Lakes to the Northeast

A Pacific storm system is expected to bring strong winds and more precipitation to the western U.S., along with the likelihood of snowfall into the Sierra Nevada. Accumulating snow will develop downwind from the Great Lakes into parts of the Northeast through Saturday. Polar air will surge into the eastern half of the country this weekend. Read More >

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April 19, 2017 - significant changes to the NWS Public Websites.

If you are unable to find something that you were previously looking for

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Regional FAQs

Some Internet Explorer Browsers have issues with WWA Map Interface for Point&Click:
      Set Zoom Level to be 100% in Internet Explorer, ie: ie-11.
      Or the user can press and hold the <CTRL-key> and hit zero, to get browser to 100% zoom level.
      use the CTRL and + keys to zoom in and the CTRL and - keys to zoom out. Refresh the page(F5)
      after zooming. You may also need to have the Compatibility View to be turned `ON`

Past (historical) Weather Data
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Coordinated Universal Time (UTC) Glossary
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Metar/TAF Abbreviations and Acronyms ---or---Federal Meteorological Handbook No. 1
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National Weather Service Glossary This glossary contains information on more than 2000 terms.
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Widespread Precipitation and Gusty Winds in the West; Snow from the Great Lakes to the Northeast

Western Region Frequently Asked Questions