Snow in Yerushalayim "Coincidences"
R' Dov Bar Leib noted in a comment on my blog a few days ago that the Daf Yomi for Asara Betevet was Yoma 35 (Daf | Text | English [pp. 101-102]), which talks about the famous story with Hillel Hazaken being covered with 3 Amot of snow after listening to Torah from the rooftop of Shemaya Ve'Avtalyon's Beit Midrash. Subsequently, this was noted by Life in Israel and Shirat Devorah. Mashiach is Coming explains this in more detail.
In addition, Matzav has this too, but adds another interesting source - The Targum Rav Yosef on Divrei Hayamim Alef 11:22, where ביום השלג (the day of snow) is expounded to talk about "the ten days of the month of Tevet".
Finally, Mashiach's Wife has a post called "Rumors in the Air" where she links to my translation of Rav Fish's newsletter and connects the snowstorm with a prediction that the 8th of Tevet is the end of the 9-month period of the "Government of Apostasy".