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Long Island weather: Showers, storms today, with highs in the 70s

Friday’s showers and thunderstorms may dampen Fourth of July getaways and return Saturday, and the best chance for clear skies on Sunday’s Independence Day holiday will be between the early morning and early afternoon, the forecasters said.

At least the cooldown should continue into early next week, the National Weather Service said — such a contrast to the heatwave gripping the Northwest which, while still extraordinary, has become slightly less severe.

For Long Island, storms look likely after midday Friday, with the weather service assessing the odds of rain at 60%. The daytime high should be capped at about 75 degrees, a few degrees cooler than initially expected.

Any storms may include a litte surprise: irregular balls of ice, or hail — though they are almost certain to be far smaller than the 6.4-inch, 1.26-pound record hailstone that officials last week confirmed hit Hondo, Texas, on April 28.

On Long Island, "Some thunderstorms could produce gusty winds and small hail" on Friday, the weather service warned.

The southwest part of the country may be in for more intense storms, the weather service's Weather Prediction Center said, advising, "Monsoonal moisture will bring wet weather and daily storm chances" to that region.

Back in New York, the risk of downpours slides to 50% on Friday night, and while at most a quarter of an inch of rain is expected, Long Islanders who live in low-lying areas may see minor flooding.

All ocean beaches from New York City to western Suffolk have a moderate rip current risk until Saturday evening, said the weather service, which issued a hazardous weather outlook. The risk is moderate to high in eastern Suffolk.

As a cold front heads toward Nova Scotia, another wave of low pressure will develop, bringing more rain, the weather service said, as its rising air warms and condenses.

And then, a weak high pressure system — in which falling air dries and cools, clearing the skies — starts arriving Saturday night.

Before that, Saturday also may see downpours, the weather service said.

The odds of rain are 60%. The high for the day should only hit 69 degrees, making it the coolest of the next several days.

Downpours again are probable Saturday night. The odds of rain, however, slide to 40%.

Sunday's holiday initially was expected to be delightful, but the weather service, in its latest update Friday, revised its forecasts to predict "a slight chance" of rain before 8 a.m.

Then it should be mostly sunny, though the weather service estimates there is a 30% chance that showers and thunderstorms could return after 2 p.m.

Highs should be around 75 degrees, the weather service said.

Monday and Tuesday should be hotter, with highs now expected to climb to 85 degrees on both days.

Tuesday, as steady southwest winds bring more heat, may be hot enough — the 90s are possible in parts of the region — and humid enough for heat advisories to be issued, the weather service cautioned.

Wednesday, however, may see clouds roll in and a trough — or elongated area of low pressure — should reach Long Island from the Great Lakes, said the weather service, which explained that rain should cool temperatures.

The odds of showers on Wednesday have nudged up to 40% — the same as Thursday's odds. The daytime high should reach 85 degrees.

On Thursday, the high for the day is forecast to be a cooler 79 degrees.

"Beyond Thursday much depends on the development or lack thereof with the remnants of Elsa," the weather service said, referring to the tropical storm that as of 5 a.m. Friday was about 70 miles east-southeast of Barbados, according to the Hurricane Prediction Center, which issued various storm and hurricane watches and warnings for the area.

That storm may possibly trigger rain Friday on Long Island, the weather service said, but its track cannot yet be forecast that far ahead.

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