As summer officially begins, dangerous heat is blasting the East.
A ridge of high pressure took shape across the Great Lakes region on Tuesday, the last full day of spring. Afternoon highs soared into the low to middle 90s in Milwaukee, Chicago, Detroit, Indianapolis and Louisville. On Wednesday, the East coast joined the sauna.
The heat is nothing new in this part of the country. All of the aforementioned cities have recorded at least two 90-degree readings so far in 2012, while Detroit has reached the mark six times.
According to Expert Senior Meteorologist Alex Sosnowski, "As of Wednesday, Chicago has hit the 90-degree 13 times times with St. Louis reaching the mark 18 times so far in 2012."
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Interestingly, Atlanta, Ga. has had only 4 days of 90-degree temperatures thus far.
As the ridge shifts eastward, places much less accustomed to these high thermometer readings in the coastal Northeast will swelter into Friday.
Beachgoers flock to the water at Coney Island during a heat wave, Wednesday, Aug. 2, 2006, in the Brooklyn borough of New York. (AP Photo/Jason DeCrow)
Cities as far north as Boston and Syracuse are forecast to break the 90-degree mark through Thursday. Pittsburgh, New York City, Philadelphia and Baltimore among others along the I-95 corridor are also expected to receive a harsh welcome to summer.
Wednesday featured the first 90-degree reading of the year for many cities. The swelter brings a noticeable change from the cool, overcast days that have dominated the last quarter of spring for much of the East.
Unfortunately, the high temperatures in the mid-Atlantic and Northeast will also be accompanied by high humidity (dew point temperatures in the upper 60s and lower 70s). This cocktail, combined with sunshine, wind speed and other factors will result in AccuWeather.com RealFeel® temperatures at or above 100 degrees during the afternoon.
Due to the high electricity demand with air conditioners running, the New York Power Authority has activated the Peak Reduction Program to lower electricity use in New York City. According to the NYPA, the program "involves commitments by the City of New York and other NYPA governmental customers to lower electricity use at more than 80 locations in the five boroughs, such as subway stations, public schools, City University of New York buildings and police facilities."
According to the Associated Press, several people had symptoms of heat exhaustion at the North Bergen High School graduation ceremony on Wednesday.
Some relief will be found in the form of pop-up afternoon and evening thunderstorms, as well as local waterway breezes. However, any storms will be spotty and isolated. Any sea, bay or lake breeze will wane in the evening hours.
In the wake of a cool front, the heat has broken in Chicago and St. Louis Thursday.
The combination of excessive heat and dry thunderstorms in many areas will add to the wildfire threat in the western part of United States and Canada through much of July.
Americans will be hoping for clear skies this Saturday, July 4, as they look to enjoy dazzling fireworks displays, in addition to other popular Fourth of July activities.
A pair of disturbances tracking eastward from the Plains will bring bouts of showers and thunderstorms to the East through the rest of the week.
Tuesday, June 30, will be the longest day of the year by exactly 1 second.
The heat wave that started across Spain and Portugal, will spread across much of Europe this week with some of the hottest conditions of the year.
The last major eruption of Mount Hakone occurred around 2,900 years ago, according to the Global Volcanism Project at the Smithsonian Institution.
Tropical Rains caused flooding. The cloud bursts were generated by the combination of Tropical Cyclone 04B, which made landfall in the eastern state of Orissa the morning of the 29th. In Raipur, 16 inches poured down from evening of the 28th to the morning of the 30th. In Bombay, 10 inches of rain fell in just 9 hours on the 30th; total rainfall from the 28th to the 30th was just over 20 inches.
Flooding rainfall continued. Near Olpe, 4.78 fell in 24 hours, causing major flooding. Dexter was completely cut off by flooding, with roadways in and out of town unpassable. Near Williamsburg, 17.25 inches of rain fell over the past 3 days. As of the 30th, Welda's total rainfall for June was about 20 inches.
The second destructive hurricane in nine days hit the Apalachicola-Tallahassee are; several people were killed, but the area sustained only light damage.