Extremely warm March weather was reported from eastern USA and Canada this week, with temperatures above +20°C in southeastern Canada, very rarely, and summer days above +25°C in Mid-Atlantic.
Extremely warm was e.g. in Washington D.C., with summer +26,1°C / 79°F. In Newar, +23,9°C / 75°F and in Boston +23,3°C / 74°F was measured.
In Canada, the warmest was in St. Catharines, Niagara region, where 20°C threshold was overcame (with maximum temperature +20,1°C /68.2°F).
Meteorologists from the region have warned, that winter weather should return, yet, but according to current outputs of GFS it appears, that it will be only short cold blasts in eastern half of the USA and Canada, except for a possible late March coldwave.
Worse it should be in western and central (Rocky Mountains) USA, with persisting coldwaves, rain and snow. Major snowstorm currently hit Denver and Cheyenny region /https://mkweather.com/denver-hits-the-monsterous-snowstorm-xylia-possibly-the-strongest-since-1885// - Mkweather will soon bring a fresh news, if historic amounts of snow forecasts have fulfilled.
Extreme coldwave should move above southern USA between 25.-30. March 2021 and at the end of the March, powerful coldwave is projected for many parts of eastern USA, including Mid-Atlantic and Northeast.
In Midwest, expected explosive tornado season is beginning soon /https://mkweather.com/spring-2021-forecast-for-north-america-2021-mk//.