More Seasonal Summer Temperatures on the Way for the Northeast

Posted: July 19, 2021 12:20 pm

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Break from Rain in the Northeast Will Not Last Long

Relief is finally on the way for the Northeast. It has been a sweltering few weeks. The persistent rain and high humidity levels have only made the conditions feel worse. However, a short break from the dog days of summer is on the way.

Stormy Weekend Causes Widespread Damage

It was a stormy weekend up and down the East Coast. The storms brought strong winds and isolated flooding in an area stretching from the Carolinas up through the southern New England states. In addition to damaged buildings because of wind gusts as high as 75 mph, some areas lost power as tree branches snapped and brought down lines.

Change in Jet Stream Position to Cut Off Moisture Beginning on Monday

Over the last several days, a southward dip in the jet stream has brought up the moisture-rich air from the Gulf of Mexico into the Northeast. The relentless rain came as a result of this southern bulge. However, the jet stream is now predicted to move northward beginning on Monday.

This movement will effectively kill the supply the moisture to the region, helping to finally dry things out. While the mid-Atlantic began to dry out on Sunday, the rest of the region will see the clearing skies on Monday. Any rain that falls on Monday will pale in comparison to the intensity and duration of storms that the area has seen over the last week or two.

More Seasonal Temperatures to Take Hold

In addition to the reduction in precipitation, the Northeast will also begin to see more seasonal temperatures. The last few weeks have brought record highs for some cities and towns. This heat will abate as cooler air from the west will start to expand to the East Coast.

Some areas have already seen the cooling trend take place. Cities in central Pennsylvania saw a 20-degree swing on Sunday as the cooler air moved in. New York City and Washington, DC, were about 10 degrees cooler on Sunday compared to Saturday.

Forecasters predict that this cooling trend will persist over the next few days, with daily high temperatures hovering around the normal range for mid-July.

Humidity Levels Moderate

In addition to the lower temperatures, humidity levels will also begin to moderate by the early part of the week. With lower dew points in place, the conditions outside will not feel as hot and sticky.

How Long Will the Dry Weather Last?

Unfortunately for those that are growing weary of the relentless rain, this upcoming drying trend will not last for long. A new system is expected to trek through the Northeast on Wednesday, delivering a brief burst of showers and thunderstorms. This rain will only serve to exacerbate the already saturated ground and swollen rivers and streams.

Most cities in the Northeast are well over their average total rainfall for this total for this point in July. For example, New York City is already over 350% of its average rainfall while Boston is sitting at more than 500% of its normal precipitation for mid-July with over 9 inches of rain already on the record books for the month as of Sunday.

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