U.S. Medium-range Forecast: Transitional pattern BUT Northwest ridge will return.

Highlight: Transitional pattern BUT Northwest ridge will return. Chart of the day: “Warm blob” has strengthened. Discussion: The northeast Pacific Ocean has warmed during mid-summer. The “warm blob’ is now +0.86C and reaching the West Coast of North America. This feature is linked to the high-pressure ridge affecting the Northwest U.S. Medium-range 6-10 Day Forecast…