Dangerous heat continues Tuesday with afternoon storms possible

Posted at 6:34 AM, Jul 28, 2020
and last updated 2020-07-28 19:02:11-04

NEW YORK — The second heat wave of the season will likely be made official Tuesday, the third day of temps over 90 degrees.

A Heat Advisory continues for much of the region until Tuesday at 8 p.m. as a result of the high heat indices.

Things start sunny early Tuesday but clouds move in by the afternoon. The high temperature will be 94 in the city and mid-to-upper 90s in the suburbs. However, the heat and humidity will combine to make it feel nearly 102 degrees.

During the afternoon, a cold front will bring some scattered showers and thunderstorms. The Storm Prediction Center has indicated a Marginal Risk as these thunderstorms could produce localized damaging winds.

Despite the passage of the front, it remains hot heading into Wednesday. Temperatures will climb into the lower 90s, but the key will be the lower levels of humidity.

The heat wave could continue heading into Thursday with temperatures hitting 90 for the fifth day in a row, but thunderstorms could develop in the afternoon and break the streak. Regardless, the risk of storms will continue through the evening.

If the heat wave has not ended on Thursday, it should on Friday. A drier air mass should move in keeping temperatures in the upper 80s under partly sunny skies.

It remains on the hot side for next weekend with temperatures climbing to around 90 degrees. At least, the humidity will remain on the tolerable range.

Tracking the Tropics

Hanna is now a tropical depression and will continue to weaken as it moves over the Mexico mountains. Storm surge has diminished along the Texas coast, but there are still concerns for heavy rain, strong winds and flash flooding in Southeast Texas and Northeast Mexico. There also were reports of over 250,000 without power across the coverage area.

There is another area of low pressure over the central tropical Atlantic moving west at 20 mph toward the Lesser Antilles. The disorganized cluster of thunderstorms has a 70% chance of becoming Isaias, the next named storm.