October 2021 - Climate Impact Company

News

10/31/2021, 8:46 am EDT

Marine Heat Waves Shape Prevailing Weather Patterns

Since 2000 marine heat waves have increased especially since 2010. Most famous is the emergence of the “warm blob” in the northeast Pacific in 2013 which not only caused dramatic warming at the surface but also to several hundred feet in depth. Other “warm blobs” east of Australia and New Zealand are routinely monitored for their strength, persistence and influence on weather and climate. Provided is a brief assessment of the current location/intensity of "warm blobs" and the influence on the upper air patterns in each hemisphere.

10/29/2021, 8:43 am EDT

Classic (Cold and Wet) La Nina Climate Settles in for November across Australia

Operational models indicate an amplified upper trough pattern that could initiate record-cool temperatures in the 11-15-day period across west/central Australia lingering for much of the remainder of November once established (according to ECMWF). The upper trough will cause widespread wetter than normal weather from northwest-to-southeast across Australia in November.

10/27/2021, 5:51 pm EDT

-WPO/-EPO Lead The Charge On A Colder 6-10-Day Central U.S. Forecast!

-WPO/-EPO climate signals regained recognition during the 2013-14/2014-15 “polar vortex” winter seasons in North America and again on single events such as last February’s ERCOT freeze. This time around, -WPO and -EPO (-EPO climatology shown) reach moderate intensity (-1.0 to -1.5) which typically produces a chilly pattern during autumn over west-central/central North America.

10/26/2021, 8:00 pm EDT

Cause Of Unusually Intense Pacific Storms of The Past Week

While “atmospheric river” and “bomb cyclone” are new meteorological expressions which were used to describe the potent West Coast storms over-the-weekend there are some climate diagnostics completely unique which helped two 943-947 MB low-pressure systems to form…one just southwest of Alaska last Thursday night and another due west of Washington Sunday morning.