In anticipation of an impending Erev Shabbos snowstorm, Star-K today released the following helpful information:
1) “Eruv Shabbos GridLock: A Halachic Guide for the Delayed Friday Afternoon Traveler”, a Kashrus Kurrents article by STAR-K Kashrus Administrator Rabbi Dovid Heber
2) “Storm Weather and Halacha”, a video presentation featuring STAR-K Kashrus Administrator Rabbi Zvi Goldberg, who discusses the halachic implications involved in storm weather (snow on Shabbos, etc.). Guest speaker is Rabbi Mordechai Frankel, Director of STAR-K’s Institute of Halacha.
http://www.star-k.org/articles/kashrus-kurrents/89/eruv-shabbos-gridlock/