World Library  
Flag as Inappropriate
Email this Article

Ice fog

Article Id: WHEBN0008823425
Reproduction Date:

Title: Ice fog  
Author: World Heritage Encyclopedia
Language: English
Subject: Fog, Ice, Ice V, Ice VIII, Ice dam (roof)
Collection: Fog, Precipitation
Publisher: World Heritage Encyclopedia

Ice fog

Ice fog over Fairbanks, Alaska in winter 2005. Temperature approximately minus 30F. Note the mirage at the base of the Alaska Range
Ice fog in Virginia City, Nevada, from an early 20th-century postcard

Ice fog is a type of fog consisting of fine ice crystals suspended in the air. It can happen only in cold areas of the world since water droplets suspended in the air can remain liquid down to −40 °C (−40 °F). It should be distinguished from diamond dust, a precipitation of sparse ice crystals falling from a clear sky.[1] It should also be distinguished from freezing fog, which is commonly called pogonip in the western United States.

In the United States

Ice fog can be quite common in interior and northern Alaska, since the temperature frequently drops below -40° in the winter months. Ice fog only forms under specific conditions; the humidity has to be near 100% as the air temperature drops to well below 0 °C (32 °F), allowing ice crystals to form in the air. The ice crystals will then settle onto surfaces.

Supposedly, early settlers called it "white death" because they believed the crystals got into their lungs and caused death.


  1. ^ "AMS Glossary - Ice fog". Retrieved 2009-02-14. 

Media related to at Wikimedia Commons

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.