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PM Update: Dose of summer heat returns; Sea level rise briefly curtailed by Australia rain

Clouds: Latest mid-Atlantic infrared satellite shows movement of clouds over past two hours. Refresh page to update. See more maps on our Weather Wall.

After six straight days of cooler than normal August weather, the heat mounted a comeback today, with highs in the mid-to-upper 80s.  The humidity rebounded as well. For Wednesday, we’ve got another warm to hot day and can’t rule out a late day storm.

Through Tonight: It’s your classic D.C. mid-summer night.  It’s partly cloudy and humid, with enough clear sky to spy the “alternative” Blue Moon.  Lows range from the low 70s downtown to the mid-to-upper 60s in the cooler suburbs.  Winds are light.

Tomorrow (Wednesday): Much like today, it’s partly sunny, very warm and humid, with highs in the mid-to-upper 80s.  We might see an isolated thunderstorm or two pop up (10-20 percent chance), but I tend to doubt it. Winds are from the south at 5 to 10 mph.

See Matt Rogers’ forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter. For related traffic news, check out Dr. Gridlock.

Sunset color in D.C. Sunday evening (Ian Livingston via Flickr)

Extreme rains in Australia briefly reduced global sea level: In 2010 and 2011, it rained so much in Australia, that the water removed from the surrounding ocean and deposited onto the land caused the sea level to fall on a global scale according to new research.  “The 2010-11 event temporarily halted a long-term trend of rising sea levels caused by higher temperatures and melting ice sheets,” reports the National Center for Atmospheric Research.  More information here: Global sea level rise dampened by Australia floods

Jason is the Washington Post’s weather editor and Capital Weather Gang's chief meteorologist. He earned a master's degree in atmospheric science, and spent 10 years as a climate change science analyst for the U.S. government. He holds the Digital Seal of Approval from the National Weather Association.
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Jason Samenow · August 20, 2013

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