04/13/2022, 7:46 pm EDT

Pacific Decadal Oscillation/Multidecadal Oscillation Update

Big years are agreed upon for North Atlantic tropical cyclone activity. Interestingly, the North Atlantic is cooling steadily. The tropical North Atlantic index has dipped to -0.33C. Meanwhile the cool phase of the Pacific decadal oscillation continues. Eastward expansion of ocean heat wave NEP22A will need to shift toward the North America coast to end the -PDO regime which is very much in question right now.
04/11/2022, 4:02 pm EDT

La Nina to Hang On!

The upper ocean heat pattern across the equatorial Pacific tells the story as a recent Kelvin Wave weakened La Nina. The Kelvin Wave influence is fading and resurgent cool waters in the eastern equatorial Pacific has regenerated and La Nina is now better-organized. We await the next Kelvin Wave as to whether La Nina fades (or not).
04/11/2022, 8:18 am EDT

Unwanted Cold Emerges in Ukraine and Shifts West across Europe

An unusually chilly air mass in that region is expected to develop and widen in the 6-10-day period according to GFS. The chill is strongest over Ukraine and just to the north in Western Russia. At that time minimum temperature risk dipping to <32F/0C is evident with several areas to 28F/-3C. In the 11-15-day period, GFS pushes the cold pattern westward across Europe. At that time there is a 30-40% risk of <32F/0C through Central Europe.
04/08/2022, 7:11 am EDT

The Australian Heavy Rains Continue

The persistent upper-level low-pressure trough across East Australia so far in 2022 coupled with increased low atmospheric moisture caused by the warmer than normal oceans either side of Australia continue to fuel an excessive wet weather regime across East Australia.