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Sunny Sunday to close out the weekend

Posted by David Epstein  October 19, 2013 09:27 PM

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Three more days of mild air before the bottom falls out of the thermometer starting Wednesday. A pair of weak fronts moves through the area before Monday, but temperatures really won’t change. As a matter of fact, some areas will again approach 70 on Tuesday.

If you want to discuss weather, climate or gardening or even education please find me on Twitter at @growingwisdom Please follow me there. Feel free to comment or ask questions too.

There might be a few clouds very early Sunday, otherwise we are looking at another amazing day of weather wil above normal temperatuers and a busy westerly wind in the afternoon. Highs once again will reach the 60s.

You’ve been hearing about the big pattern change coming next week and it’s still on the way. Temperatures are going to be cooler and cooler each day after Tuesday and by the end of the week most areas will only reach the upper 40s and 50s during the afternoon with a widespread frost and even freeze probable for all areas, including along parts of the coast.

The jet stream at upper levels of the atmosphere is going to undergo a huge transformation this week as cold air from Canada dives south and east and takes our temperatures from the above normal readings of the past several weeks and drops them to below normal for most of the last week of the month.
The map below from Accuweather, shows the new jet stream position on the way.
new pattern.jpg
By the end of the new week, most areas away from the bigger cities and the ocean will experience a hard frost or freeze. This means that the growing season, which has gone on longer than usual, will come to an end. You might not see an official frost or freeze warning/advisory issued even if there hasn’t been a morning with below freezing temperatures. The reason is when it gets so late in the season, the assumption is most people have brought all their plants inside or done what they need to for winter.

Although we have a few light showers in the forecast, the dry weather is actually becoming an issue. If we were having this kind of dry spell in July there would be real problems with agriculture and you can be sure water bands would be widespread. Much of southern New England is very dry, especially along the coast.
The biggest issue with such conditions going into winter is ground water is low and some plants could be more susceptible to damage this winter. There is still plenty of time to get water into the ground before it freezes; however, time is running out.

October tends to be one of our driest months and many of the longest dry spells on record have been in October. In contrast, November is often a stormy and cloud month.

Foliage is peaking in near the water this weekend and the best time to take pictures is between 2 PM and 5 PM when the angle of the sun is lower in the sky and the light has more of an orange glow. We might have some issues this weekend with the clouds Saturday afternoon hurting the light a bit and the wind Sunday blowing the leaves off the trees.
foliage this weekend (1).gif

Gardening This Week
This is a great time of year to remove some of the invasive plants in your garden. In this week's video, I head to the New England Wild Flower Society to learn about some of the worst plant offenders in the garden.

If you want to discuss weather, climate or gardening or even education please find me on Twitter at @growingwisdom Please follow me there. Feel free to comment or ask questions too.

This blog is not written or edited by Boston.com or the Boston Globe.
The author is solely responsible for the content.

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About the author

David Epstein has been a professional meteorologist and horticulturalist for three decades. David spent 16 years at WCVB in Boston and currently freelances for WGME in Portland, ME. In 2006, More »
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