Mark Pena on Muck Rack

Mark Pena

Verified
Washington, D.C.
As seen in: WJLA-TV (Arlington, VA), KXAN-TV (Austin, TX)
Meteorologist for @7NewsDC
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Articles

How urban heat island effect makes DC hotter than surrounding areas

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By Mark Pena Verified
| WJLA-TV (Arlington, VA) Verified
Have you ever driven or taken the metro into downtown D.C. and thought maybe it felt hotter there than where you traveled in from? You may have experienced what's considered to be the "urban heat island effect". Urband heat island effect The urban heat island effect occurs when temperatures in the urban core of a city are several degrees warmer than in areas just outside of it, creating an "island" of warmer temperatures due to the urban design.
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78 inches of snow? The apocalypse? Don't believe everything online about the winter storm

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By Thomas Mates Verified, Mark Pena Verified
| WJLA-TV (Arlington, VA) Verified
Snow Friday morning, Dec. 5, 2025, on Quaker Lane and Duke Street in the City of Alexandria, Virginia. (Nick M/7News) As the DMV braces for a significant winter storm, there is a lot of hype popping up on social media about what the weather will bring. The First Alert Weather Team is working around the clock to keep everyone informed ahead of the snow, and they are stressing to everyone to prepare and not panic.
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The 2025 meteorological summer has been quite active for the DC-area, here's a recap

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By Mark Pena Verified
| WJLA-TV (Arlington, VA) Verified
WASHINGTON (7News) — Meteorological seasons are divided into three months based on temperature cycles that are easier to keep track of weather data compared to astronomical seasons, which are based on the Earth's alignment with the sun. Meteorological summer is from June 1 to August 31, which means it is coming to an end on Monday. Here's a look back at some of the notable events from the season. Drought 2025 started with severe drought conditions in most of the Mid-Atlantic region.
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