03/12/2018, 2:57 pm EDT

Another Northeast Snowstorm

The 3rd in a series of 3 Northeast U.S. snow storms is upon us as all of New England is beneath a winter storm warning with blizzard warnings issued for east/southeast Massachusetts. 1-2 feet of snow is likely for much of the region with a storm that begins tonight and roars through most of Tuesday.
03/06/2018, 10:02 am EST

Intense Kelvin Wave Shifting East Across Pacific Could Dissipate La Nina by April

Monitoring a Kelvin Wave now moving east of the Dateline and intensifying is extremely important as to a potential rapid dissipation of La Nina during early calendar spring. The dissipation of La Nina process would likely produce extreme storms (flooding) in the U.S. due to the energy release to the atmosphere of a Madden Julian oscillation episode coupled with an oceanic Kelvin Wave.
02/28/2018, 2:27 pm EST

MJO Coupled With Pacific Kelvin Wave Caused The Mid-South U.S. Flood. Another One On The Way?

During the past week or so an excessive rainfall event emerged in the East-Central/Mid-South U.S. The excessive rainfall event was caused by the combination of Madden Julian oscillation and subsurface Kelvin Wave moving across the tropical East Pacific. There are concerns of another such event evolving for early calendar springtime.
02/21/2018, 4:44 pm EST

Lower 48 Colder Than Normal in 15 Days

Combination of widening western snow cover and attendant arctic air held in place by the negative phase of the Pacific North America pattern joins forces with a developing negative phase of the North Atlantic oscillation flipping the record warmth in the East to colder than normal in 10+ days. The -PNA/-NAO combination push the Lower 48 States to colder than normal in 15 days.