Pattern Change Eastern U.S. Later October

A map of the north and central coast AI-generated content may be incorrect.
Caribbean/Gulf Subsidence/Dry Air Suppressed North Atlantic Seasonal Tropical Cyclone Activity
10/09/2025, 5:26 am EDT
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Early Season Hefty Snow Cover, Causes Cold Air Mass, Release Into China Next Week
10/15/2025, 7:04 am EDT
A map of the north and central coast AI-generated content may be incorrect.
Caribbean/Gulf Subsidence/Dry Air Suppressed North Atlantic Seasonal Tropical Cyclone Activity
10/09/2025, 5:26 am EDT
A map of the world AI-generated content may be incorrect.
Early Season Hefty Snow Cover, Causes Cold Air Mass, Release Into China Next Week
10/15/2025, 7:04 am EDT
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Climate Impact Company Week 2-4 Outlook

North America

Issued: Monday, October 13, 2025

Highlight: The warm pattern reverses cooler in the East late OCT/early NOV.

Charts of the day: Developing Interior East U.S. trough late OCT/early NOV.

A map of the earth AI-generated content may be incorrect.A map of the earth AI-generated content may be incorrect.

Discussion: ECM projects the Greenland Block to continue and finally produce cool troughs into the Ohio Valley/Mid-Atlantic States and Northwest Eurasia late this month into early November. Expect a cooler U.S. pattern especially in the East, as November approaches.

Week-2 Ahead Forecast valid October 19-26, 2025: Warm Central/East persistence.

A map of the united states AI-generated content may be incorrect.A map of the united states AI-generated content may be incorrect.

Discussion: Vigorous upper trough maintains the cool pattern in the West easing late period. The upper trough also spawns rain and snow for the Interior Northwest to Southern Canada. To compensate, persistent warmth remains Central and East.

Week-3 Ahead Forecast valid October 26-November 2, 2025: Turning cooler East.

A map of the north AI-generated content may be incorrect.A map of the united states AI-generated content may be incorrect.

Discussion: The pattern changes during late October as an upper trough cools the East and Central warmth abates while the chilly weather in California reverses warmer. The Central U.S. stays dry while tropical cyclone risk generates in the Northwest Caribbean Sea.

Week-4 Ahead Forecast valid November 2-9, 2025: Cooling continues East.

A map of the united states AI-generated content may be incorrect.A map of the united states AI-generated content may be incorrect.

Discussion: Upper trough in the East could deliver a cooler attendant regime compared to the ECM forecast. Warmth and dryness settle on the Southwest.