Image courtesy of Tropical Tidbits

Midday Long Range: Transient warmth followed by big changes


Good afternoon and Happy Monday! Transient warmth remains the story during the better part of this ongoing week. In our morning briefing we discussed the evolution of a broad ridge, which will develop across the Western and Central United States this week. This ridging will shift eastward over the next 5 to 7 days, bringing anomalous warmth eastward with it. Warmer than normal temperatures are expected across a large portion of the United States this week, particularly in the Central and Northern Plains.

With the movement of this ridge eastward, as progressive as it may be in its overall nature, will come a steadily lower than normal GWHDD when compared to 10 and 30 year averages. This has been well reflected in the latest model data and in our forecast packages. We only made minor tweaks to our going forecast in the next 5 days or so. The major changes to the forecast look likely to come during the middle of December.

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