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Posted at 5:30 PM ET, 08/10/2010

PM Update: Heat sets another D.C. record

By Ian Livingston

Hot Wed; More typical August temperatures to follow

* Photos: A pleasant August weekend | Relentless heat roasts Russia *
* Outside now? Radar, temps & more: Weather Wall | NatCast *
* 90+ days so far in 2010: 50; Next up to pass, 1993 & 1881 (51 days) *

The official numbers are in and they show that National Airport hit 98 a little before 3 p.m. today, tying the previous record high for the date. With 50 days of 90 degrees or higher now behind us, this is the earliest we've hit such a mark in recorded history. Temperatures that reached highs in the mid-and-upper 90s were thankfully not accompanied by the highest humidity levels we see around here. The good news is that unlike some of our previous heat waves, this one does not have major staying power.


Radar & lightning: Latest D.C. area radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Through Tonight: Mostly clear and warm 8:15 update: Partly to mostly cloudy and warm with a few scattered showers possible through about 10 or 11 p.m if they hold together. After that, skies should clear back out. Evening readings that drop to near 90 around sunset ultimately fall to lows in the lower 70s in the cooler spots to the upper 70s in the warmest ones.

Tomorrow (Wednesday): We'll see some more in the way of clouds tomorrow, but partly sunny skies should still help highs rise to at least the mid-90s across the area -- a few upper 90s in and near the city centers can't be ruled out. Heat indices again rise to near 100. Clouds should increase late, especially heading into the night.

See Matt Rogers' forecast into next week . And if you haven't already, join us on Facebook and follow us on Twitter.

Tropics: An area of disturbed weather just west of the Florida peninsula is being monitored by the National Hurricane Center. Conditions are expected to become more favorable for tropical development over the next day or so as it drifts in the general direction of Louisiana, but expectations are not terribly high at this point. Weather Underground's Jeff Masters discusses the system in more depth on his blog. 7:30 Update: This system has become a tropical depression and tropical storm warnings have been issued for portions of the northern Gulf.

By Ian Livingston  | August 10, 2010; 5:30 PM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   Del.icio.us   StumbleUpon   Technorati   Google Buzz   Previous: A pleasant August weekend in D.C.
Next: NatCast: Near-90 warmth & some humidity, too

Comments

As of today's 5:00 p.m. observation, DCA heating degree todays are 33% above normal since June 1 and 31.1% for all of CY10. I'll leave the heating degree day details to CWG, if indeed the topic hasn't been covered recently.

As consolation, today I read about the Wash/Jeff snowstorm of 1772 (three feet) and the really wild one in 1857, when the temp at Williamsburg was 3 degrees at the height of the storm, with 2 feet of snow in D.C.

Get something like this going around here and servers, instead of asphalt, would melt down.

Posted by: JerryFloyd1 | August 10, 2010 6:41 PM | Report abuse

CWG - please remove post time 7:36. Thank U!

Posted by: FIREDRAGON47 | August 10, 2010 8:03 PM | Report abuse

Radar shows a smallish storm up north right now.
Centreville is pretty dry after the past couple day's baking. Send that rain south.

Posted by: FIREDRAGON47 | August 10, 2010 8:07 PM | Report abuse

@FIREDRAGON47 --

Yeah, it looks like it's headed for us in Ashburn! Hope so anyway. It is dry, dry, dry.

Posted by: natsncats | August 10, 2010 8:23 PM | Report abuse

Concur with FireDragon, 7:36 post inappropriate.

Posted by: JerryFloyd1 | August 10, 2010 8:24 PM | Report abuse

Maybe wasn't paying attention but showers were kind of unexpected. Firedragon gave me the heads up, lol.

Posted by: Ian-CapitalWeatherGang | August 10, 2010 8:31 PM | Report abuse

@Ian, when you have a chance (and assuming you haven't already done) and have access to the data would be interesting to see how this year's cooling degree "surplus" rates. Surely must be one of highest. (I said "heating degree days" in my 6:41 post but meant cooling degree days.

Have heat on the brain these days.

Posted by: JerryFloyd1 | August 10, 2010 8:58 PM | Report abuse

The oil spills, hurricanes, floods, mudslides, and the global heat wave (which have been the cause of many fires, toxic smoke, and deaths) have many searching for answers. The internet is buzzing with articles and excellent blogs. But could it be simply the biblical sequence of God's wrath being poured out upon the earth which is relevant to current events in today's world. What if we are dealing with the wrath of God? Please understand the wrath of God is letting man slip deeper and deeper into the consequences of his own sin. Please visit my website at http://www.revelation-truth.org . Rev. Daniel W. Blair author of the book Final Warning

Posted by: daniel24 | August 10, 2010 9:03 PM | Report abuse

The inappropriate post is back @9:03!

Posted by: natsncats | August 10, 2010 9:06 PM | Report abuse

I was surprised to see some wet pavement near Markham this evening. Missed my house though...

Concerning tied records... what will the almanac say next year?

98 (1943) or 98 (2010)?

Posted by: spgass1 | August 10, 2010 9:18 PM | Report abuse

spgass1 - any record will display as the most recent year it was tied. However more detailed almanacs will track all years the temperature reached a record mark... I have seen as many as four years tie one record temperature! But on TV, internet, condensed records that most of us see nowadays..you'll see just one, most recent, year displayed.

Posted by: Camden-CapitalWeatherGang | August 10, 2010 11:03 PM | Report abuse

This is the most miserable summer I can ever remember. The heat is bad enough. The drought is bad enough. Add them together and UGH!

I took a couple of pix with my cell phone of the big snowstorm this past winter. I'm now using it as cell phone wallpaper. Makes me feel a little nostaslgic.

Posted by: waterfrontproperty | August 10, 2010 11:43 PM | Report abuse

The comments to this entry are closed.

 
 
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