When will the Dam Break?
The exception of the Pacific Northwest and portions of the far Northern Rockies, October was a very warm month for most of the nation. The graphic below shows the large swath of warmth that most of the nation has observed.
Relative to normal it was very warm from the east slopes of the Rockies to the Corn Belt and East Coast. Only Washington, Oregon, central and northern California and portions of Idaho and Montana were cooler than normal. Also, portions of western Canada also had cooler than normal temperatures.
It is important to note, however, that while the western portion of the northern hemisphere was warm in October, the same cannot be said about the far eastern hemisphere.
The graphic below shows a lot of cold in October across many areas of Europe eastward across Russia. The blue and especially the green colors represent colder than normal October temperatures.
The area cold across Europe, Russia and northern Asia has also coincided with above normal snowfall. The combination of building snow and persistent cold is an important clue as to what may be coming to North America by the middle of November and into early December.
Simply put, the cold air buildup on the other side of the globe could end up bringing several shots of much cold air into Canada and the USA before and after Thanksgiving week. Therefore, enjoy the warm start to November before the “dam breaks.”????????