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Posted at 3:15 PM ET, 06/23/2010

PM Update: Steamy heat enjoying local stay

By Ian Livingston

Another scorcher tomorrow, late-day storms?

* June heat threatens D.C. record | Arctic sea ice melting fast *
* Outside now? Radar, temperatures & more: Weather Wall | NatCast *

Our second day in a row with temperatures rising above 95, combined with heat indices around or past 100, is not feeling too swell. But, there may be some light at the end of the tunnel once we get past another scorcher tomorrow and follow-up, hopefully lesser, heat into and through the weekend. Then again, as some will claim: It's D.C., it's summer and it's almost always hot.

Radar: Latest D.C. area radar loop shows movement of precipitation over past three hours. Powered by HAMweather. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Through Tonight: There's a chance of an isolated shower or storm through the rest of the afternoon thanks to all this heat. While we've seen some lovely evenings lately, this one might not count. Temperatures still near 90 heading into sunset only slowly fall through the night under mostly clear skies. Lows dip all the way to the balmy mid-and-upper 70s. When's fall getting here?

Tomorrow (Thursday): Thursday could be the hottest day of this hot stretch. It's another one with temperatures rising above 90 before lunch, and this time potentially topping out near the century mark in some places. By late in the day a cold (or cool) front could set off some showers and thunderstorms. Highs reach the mid-90s to around 100, depending on clouds and such.

See Dan Stillman's full forecast through the weekend. And if you haven't already, join us on Facebook and follow us on Twitter.

Canada quake: A fairly significant (for the region) earthquake struck southeast Canada early this afternoon. The quake hit at 1:41 p.m. on the border of Quebec and Ontario provinces. Reports of shaking have come in from multiple areas at some distance from the quake, including here apparently (check the comments in the previous post). Buildings in Toronto have been evacuated as a precaution following the shaking which was reported to last as long as one minute.

By Ian Livingston  | June 23, 2010; 3:15 PM ET
Categories:  Forecasts  
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Next: Forecast: Likely hottest day of the far


Interesting thing about eastern quakes vs western ones (in North America) is that, due to the geology, the eastern ones are felt much further away. Western geology is lots of faults breaking the continent into many mini-plates, and the shaking tends to get absorbed by the plate boundaries. But the east is one big plate. A 5.8 quake in Utah may be felt as far as 75 miles away, but not much further. The Charleston quake rang church bells in Boston, as did the New Madrid.

Posted by: wiredog | June 23, 2010 3:44 PM | Report abuse

wiredog, I am really glad someone else knows the behavior in and around the Canadian Shield. You are quite right, and know your stuff! Thanks for commenting!

Posted by: Camden-CapitalWeatherGang | June 23, 2010 6:18 PM | Report abuse

97 high at National, warmest of season.

Posted by: Ian-CapitalWeatherGang | June 23, 2010 6:23 PM | Report abuse

I must be in a mini-bliss hole of a location. I am right behind National Harbor and the heat (and humidity) doesn't feel that bad. I was outside in the garden all afternoon and with the help of some cloud cover I never broke a serious sweat. Right now the thermometer is reading 85.6. Granted I am surrounded by trees but I do have a wide open area where the sun shines on the veggie garden and the back of the house. I don't know. Just doesn't feel like 97 and high humidity.
Oh well. Ces la vie.

Posted by: pjdunn1 | June 23, 2010 7:11 PM | Report abuse

So it's hot. I spent the morning in my swimsuit on the back porch, and the afternoon in my AC-cooled car taking care of business. I'll take this over three feet of snow anytime!

Posted by: rosilandjordan | June 23, 2010 8:27 PM | Report abuse

Via our Twitter feed - @capitalweather: For the record, Temp at first pitch: 95, First pitch speed: 96.

Posted by: Jason-CapitalWeatherGang | June 23, 2010 9:39 PM | Report abuse

By 7:30 p.m., outside life was bearable. Humidity was not horrible, and we could see that a front is approaching. We had a light breeze all day that kept things from being god awful. I've certainly experienced drippier summer evenings ...

Posted by: weathergrrl | June 23, 2010 10:33 PM | Report abuse

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