ALBANY — The latest in a series of large thunderstorms that has battered the state this summer is expected to reach the Capital Region by mid-afternoon Sunday, bringing showers and thunderstorms — including the potential for flash flooding.
“Areas with a lot of rain could see a lot of flash flooding tonight,” said Steve DiRienzo, meteorologist with the National Weather Service in Albany.
The National Weather Service expected the storm system to move in from Central New York and reach the Capital Region between 4 to 6 p.m. Sunday afternoon, although isolated thunderstorms may pop up as early as 1:30 p.m. in some locations, DiRienzo said.
Residents should expect gusty winds and heavy rainfall, especially during the afternoon and evening hours.
Earlier isolated storms can be attributed to stronger-than-forecasted sunshine on Sunday, which indicates an unstable atmosphere.
“Sunshine acts like putting a lid on a stove, and it bubbles up,” DiRienzo said. “When the sun heats up a pot, it produces bubbles. But instead of bubbles, you get thunderstorms that cause problems.”
A month of drenching rains that caused regular flooding, wrecked crops and upended outdoor entertainment plans had the region approaching the record for the wettest July of all time.
According to the National Weather Service, 8.93 inches of rain fell last month in Albany, leaving the region less than an inch short of the record – 9.91 inches – set in 2009.
The second-wettest July saw 9.37 inches of rain in 1871. The region averages 4.55 inches in July.
The rains have been fueled by warm ground temperatures and cold temperatures in the upper atmosphere, a combination that's sent wave after wave of soaking storms across the region throughout late June and July.
July's rainfall makes it the third-wettest on record in Albany.
“We’ve had a very energetic atmosphere,” DiRienzo said on Sunday, who attributed the constant rains to the jet stream. While it usually heads north at this point in the summer, it currently remains southwards.
“The jet stream is displaced further south than it would normally be, so that’s a lot of energy,” DiRienzo said.
Once the jet stream reaches Canada during the dog days of summer, weather typically turns hot and muggy with localized storms — not daily widespread heavy systems.
“A few times a decade, we get rainy summers, and this is one of those years,” DiRienzo said.
Dry and pleasant weather looks to return for later Monday into Tuesday, according to the National Weather Service.
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More heavy rain, gusty winds hitting Capital Region Sunday - Albany Times Union
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