Our last weekend of September is going to be fantastic. Average highs this time of year are now falling back into the 60s and to have a weekend of full sun and high near or exceeding 80F is a real treat. As a matter of fact the entire nation east of the Rockies is going to experience fine summer-like weather this weekend. It’s going to be near 90F in Denver today and remain in the 80s this weekend.
The map below shows the extent of the warm weather in the high temperatures for Saturday. Similar readings will occur Sunday, but perhaps a bit warmer in some areas.
The jet stream which was never very far into Canada most of the summer, especially August, has taken on a configuration more typical for the middle of summer. If this same upper air pattern had occurred 8 weeks ago, we’d likely be seeing close to record high temperatures in some areas of the United States and a bigger issue from our drought. The blue shades areas represent the flow of the jet stream. Image from Accuweather.com
You can see it just west of the Rocky Mountains, but then it disappears into Canada far to the north of our area. This allows arm and dry air to overtake the region and until this pattern breaks down, this won’t change.
If you’re not a gardener or don’t have a lawn, you likely aren’t so aware of the drought now going on in a large section of southern New England. All droughts are not equal. While some areas are now in a moderate drought, this classification has different impacts in September than it would in July.
Plants are beginning to go dormant for the winter now and the dry soil isn’t as bad for a dormant plant as it is for an actively growing one. This is why I encourage you to water your evergreens until the ground freezes as they are still losing water, while trees that drop their leaves are naturally protect themselves from the lack of moisture in the soil.
When will it rain?
There is definitely no rain through the start of next week. The models do have the threat of rain sometime Tuesday or Wednesday, but this next system could also pass out to sea south of the area. The system yesterday was forecast to at least bring some rain up to about the Massachusetts Turnpike. Although Nantucket saw about 2 inches of rain, areas north of Plymouth didn’t see more than a drop or two. The areas that are currently in the heart of the drought haven’t seen much rain all summer. Normally, we see close to 3 and a half inches of rain in September. This year some areas are 80 percent UNDER that number. That’s a big deal. You can follow my musings in short format on Twitter @growingwisdom
I’ll be watching the trend of the models for how they handle next week’s chance of rain. If they start bringing the rain further north I’ll be a bit more confident in the chance of rain. There’s a saying that drought begets drought and this month this is certainly proving true. Enjoy the weekend. We can’t do anything about the lack of rain so you might as well embrace the amazing weekend of weather that lies ahead.