Talk:Weather balloon

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[edit] Helium vs. Hydrogen

RE: "...rarely hydrogen...", as I recall, the US NWS changed from heliuim to hydrogen about 25 years ago. Have they changed back? Rsduhamel 01:57, 4 August 2005 (UTC)

An email this morning from Bill Blackmore of the US NWS says that about 1/3 of their stations use helium and the rest use hydrogen.CambridgeBayWeather 15:14, 4 August 2005 (UTC)

I was trained using helium in the early 1990s by both the USAF and Metropolitan State College of Denver. 147.145.40.43 00:41, 17 January 2007 (UTC)