Archive Posts
2 posts found
March 2022
-
Tropopause Polar Vortex and the Late March Cool-Down
While glancing at the forecast for the upcoming stretch of anomalous cold weather in the Northeast U.S., I noticed that while low-level temperatures are forecast to be near record cold for this time of year, upper-level temperatures are actually forecast to be near record warmth! This may seem counter-intuitive at a first glance, but it ended up being related to…
-
Bomb Cyclones: The Forgotten Latitude Weighting
Over the last few years, the term "bomb cyclone" or "bombogenesis" has become increasingly popularized within and beyond the weather community. A bomb cyclone is commonly defined as a decrease in central minimum pressure of 24 hPa or more within 24 hours. This definition, however, is incomplete. The original definition of a "bomb cyclone" from Sanders and Gyakum (1980) included…