Tuesday July 23, 2013 | 08:23 AM
Posted by David Epstein

Very heavy rain is moving through southern Maine this morning.  The heaviest rain is falling across the foothills and the lakes region.   Some of these areas could see 1 to 2 inches of rain this morning as torrential downpours move through. There is a flood watch in effect because of the possibility of flash flooding.  Any flooding that occurs would be of the street or small stream variety.

The rain is being caused by very humid air riding northward into the region.  As this is air is being lifted it is building into showers and heavy downpours.   This boundary will remain south of Maine this morning before lifting northward into York county.    While it is very muggy this morning, the true tropical air is across southern New England.

Later this morning the heaviest rain will move out and we will be left with scattered showers.   The area of showers this afternoon won’t be as organized as the morning.  If you do get a shower it could be accompanied by some thunder and a torrential downpour.

Tonight will be warm and muggy with temperatures in the 60s all night.  There could be a passing shower or storm during the night as well.   Because of the high levels of moisture, quite a bit of rain could fall in a short period of time.  Most of the night will be rain free.  

Wednesday will be partly sunny and muggy, especially through the first half of the day.  By afternoon a cold front, the leading edge of drier air, will have pushed through.  As this front moves into the humid air, more storms can pop.  Similar to last Saturday, who gets the storms is impossible to predict, but all of us under the gun for possible storms.

Finally, Wednesday night drier and cooler air moves in.  This air will be from Canada and give the region a taste of temperatures and humidity levels we are typically to which we are typically accustomed.   When you awaken Thursday morning, the air will feel refreshingly clean and dry.  Temperatures will reach the 70s for the end of the week with low levels of humidity. 

The weekend right now is looking good, but not perfect.  The best day appears to be Saturday with abundant sunshine and warm temperatures.  On Sunday a disturbance in the atmosphere will bring more clouds, higher humidity and a chance of a few showers.  The day won’t be a washout at all, but not as dry as the previous 3 will have been.  

Gardening this week

Pests in the garden are a problem for any grower. There are now better and better organic controls for gardeners that allow good control without the harsh chemicals. Check out the video below and see how I am controlling some of the pests in my own garden this year.


I'll be updating the details of the weather on Twitter at @growingwisdom Please follow me there. Feel free to comment or ask questions too.

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About the Author

David Epstein has been a meteorologist for more than 25 years. He spent 16 years in Boston and currently freelances at WGME13 in Portland.

In 2006, David founded GrowingWisdom.com, a business producing educational and marketing videos for the green industry. He currently is a professor at Framingham State College, teaches Jan Plan at Colby College and owns Bloomscapes Inc., a landscape design business.

David authored "Gardens Of New England" and his work has been published in Grolier's Science Annual for 10 years. He lives in South Natick, Mass., and has a summer home in Harpswell.

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