The Ocean Prediction Center produces full basin surface analysis charts every 6 hours, valid at synoptic times 00Z, 06Z, 12Z, and 18Z.
These are produced year-round for both the Pacific and Atlantic ocean basins. December 2013 featured an extremely active, and very intense
low pressure track across the North Atlantic ocean basin. Below is a full loop containing all the Atlantic surface analysis charts, beginning
December 01 00Z and ending December 31 18Z.
A few interesting statistics:
There were 14 unique instances of hurricane force wind events. These include tip jets in the vicinity of the Greenland coast.
As a reminder, hurricane force winds mean ocean surface winds exceed 63 knots.
There were 10 unique low pressure systems that deepened quickly enough to be classified as having undergone "bombogenesis".
At the OPC, these are called "rapidly intensifying" low pressure systems. As a reminder, this means the central pressure of a system decreases by at least 24 mb in 24 hours.
The lowest pressure was analyzed as 929 mb, occurring December 24 06Z, and again December 24 18Z.
Aside from the lowest analyzed pressure of 929mb, there were 5 other lows to have a central pressure analyzed below 950 mb:
942 mb Dec 12 18Z | 946 mb Dec 15 12Z | 948 mb Dec 18 00Z | 940 mb Dec 19 12Z | 943 mb Dec 27 00Z