Tomer’s Take:
- Southerly flow is drying up and Monsoon appears done for the season in Colorado.
- Isolated afternoon mountain t-storms are still possible at times. But, these t-storms will be fewer, weaker, and lack the torrential rain we experienced in July and most of August.
- Monsoon Season in Colorado normally runs July-August.
- This season featured a robust Monsoon flow that started two weeks early.
- This opens the door for big Fall projects in the Mountains of Colorado.
- I’m forecasting an abnormally warm and dry Fall season.
- One wrinkle to keep in mind: An active end to Pacific hurricane season appears likely. The remnants of these hurricanes could move north and affect Colorado at times.
Current Setup
Water vapor satellite shows a complete change in the pattern. The current flow is not supportive of the Monsoon. The rich southerly flow has been turned off. Orange/red = drier air aloft.
Total Summer Precipitation
90-day precipitation % of normal. The Monsoon nailed the Southern Mountains and certain parts of the Central and Northern Mountains. The Front Range and Eastern Plains ended up normal to drier than normal.
Forecast
Mid-atmosphere humidity values are significantly drier most of this week (except 8/31).
Early to mid September Outlook: Drier than normal. Monsoon is gone.
