- Oct 22, 2014
- 22,487
I have been trying to understand the weather patterns that are affecting the Chesapeake Bay as spring begins to tease the sailors with warm days. The only pattern I see is Warm - Cold - Wet - Sunshine, rinse and repeat. One day the Gulf Stream is bringing up warm moist air, only to be followed by the Canadian chill dry cold north winds.
Inconsistency is the norm on the surface charts. Then I looked at the upper air movements, and you can see that the Jet Stream is crossing the country in waves. Perhaps that is the key. Normally, the Jet flows through Canada south of the Arctic Circle. Looking at this series of images over the next 9 days you can see a split jet that sometimes is the weather out of Canada. Then, as the wave moves east, the jet draws the Gulf Stream warmth onto the Chesapeake Bay. The movement of these jet stream ripples appears to be the cause of the changing conditions.
Take advantage of the good days. Maybe enjoy a sail. The only constant pattern I see is that tomorrow will be a change day.
Inconsistency is the norm on the surface charts. Then I looked at the upper air movements, and you can see that the Jet Stream is crossing the country in waves. Perhaps that is the key. Normally, the Jet flows through Canada south of the Arctic Circle. Looking at this series of images over the next 9 days you can see a split jet that sometimes is the weather out of Canada. Then, as the wave moves east, the jet draws the Gulf Stream warmth onto the Chesapeake Bay. The movement of these jet stream ripples appears to be the cause of the changing conditions.
Take advantage of the good days. Maybe enjoy a sail. The only constant pattern I see is that tomorrow will be a change day.
