As a heat wave expands over much of the eastern two-thirds of the nation, the northeastern United States will share in the summer swelter with record highs, the hottest weather so far in 2019, and AccuWeather RealFeel® Temperatures well above 100 F.
While temperatures may be briefly held back in areas that receive a thorough drenching as Barry moves through into Thursday, intense July sunshine, combined with a northward retreat of the jet stream will allow an impressive heat wave to build even for midsummer standards.
In the northern U.S., a heat wave is generally that which brings three or more days in a row with highs of 90 F.
“The combination of sunshine, temperature, humidity levels and other factors will push AccuWeather RealFeel® Temperatures well into the danger level past 105 degrees during the late morning and afternoon hours,” according to AccuWeather Senior Meteorologist Brett Anderson.
A large sinkhole has opened up outside of the Kindercare in North Huntingdon Township.
A flash flood warning is in effect for Allegheny County and Westmoreland County until 10:30 a.m. A flood advisory is in effect for Allegheny County until 9:45 a.m.
According to the National Weather Service, one inch of rain has already fallen with an additional inch of rain possible.
The warning includes over a dozen locations in Allegheny County, as well as parts of the Pennsylvania Turnpike and I-376.
We are tracking strong to severe storms for the afternoon and evening that will have the potential for large hail, damaging winds and frequent lightning.
Around 1 p.m., storms will start to pop up in areas north of the city of Pittsburgh.
The National Weather Service has issued a flash flood warning for northeastern and east central Allegheny County on Thursday.
The warning is in effect for east central Allegheny County until 10 p.m. Thursday.The warning for northeastern Allegheny County expired at 9 p.m.
At 6:59 p.m. radar indicated heavy rain in the affected area. Up to 2 inches of rainfall is expected, with an additional 1 inch possible. Flash flooding is expected.
Some locations that may experience flooding include Pittsburgh, Penn Hills, Monroeville, Ross Township, McCandless Township, Shaler Township, Plum, Wexford, Oakmont and Fox Chapel.
A flash flood watch remains in effect for Westmoreland and Fayette counties through Thursday evening.
Source: Flash flood warning issued
Summer will officially arrive in the Northern Hemisphere today (June 21), marking the longest day, the shortest night and the beginning of summer.
The June solstice will occur at 11:54 a.m. EDT (1554 GMT), as the sun reaches the point at which it is farthest north of the celestial equator. To be more precise, when the solstice occurs, the sun will appear to shine directly overhead for a viewer stationed on the Tropic of Cancer (latitude 23.5 degrees north) in the western Atlantic Ocean, roughly 600 miles (965 kilometers) to the northwest of San Juan, Puerto Rico.
From midnorthern latitudes, we can never see the sun directly overhead, but the same principle holds. For example, as seen from Philadelphia at 1:02 p.m. EDT on solstice day, the sun will attain its highest point in the sky for this entire year, standing 74 degrees above the southern horizon.
To gauge how high that is, your clenched fist held at arm’s length measures roughly 10 degrees, so from the City of Brotherly Love, the sun will appear to climb more than “seven fists” above the southern horizon. And since the sun will appear to describe such a high arc across the sky, daylight will be at its longest extreme, lasting 15 hours and 1 minute.
a lightning strike in Mammoth Park in Mount Pleasant while they were fishing. Both had just graduated from high school.
In August 2018, a 45-year-old man was struck by lightning while playing soccer in Pittsburgh’s Schenley Park. Bystanders performed CPR on him until paramedics arrived and resuscitated him.