Signal: the Monthly Newsletter of the UCAR Corporate Affiliates Program, is published monthly by UCAR. The purpose of the newsletter is to provide research news and announcements of major meetings, symposia, and publications. Includes the following articles: Science briefing: VORTEX aims at the h... Show moreSignal: the Monthly Newsletter of the UCAR Corporate Affiliates Program, is published monthly by UCAR. The purpose of the newsletter is to provide research news and announcements of major meetings, symposia, and publications. Includes the following articles: Science briefing: VORTEX aims at the heart of tornadoes; Affiliate profile: AeroVironment, doing more with less; Technology corner: Dual path ultraviolet (UV) hygrometer; Conference update: Fifth Annual Congressional Forum; Calendar/Announcements; and Join us! (membership form). Show less