Network News

X My Profile
View More Activity
The new Washington
Post Weather website
Jump to CWG's
Latest Full Forecast
Outside now? Radar, temps
and more: Weather Wall
Follow us on Twitter (@capitalweather) and become a fan on Facebook
Posted at 7:55 PM ET, 07/ 9/2010

PM Update: Rain chances go up into tomorrow

By Ian Livingston

Saturday should fail to hit 90, then heat returns

* A deadly combo: heat, cars and kids | The Rainmakers | NatCast *
* Outside now? Radar, lightning, temps & more: Weather Wall *

We took another slight step downward in the temperature department today, but high humidity levels helped mute that change. Despite partly-to-mostly cloudy conditions, temperatures still rose to around and above 90 across most of the area. A cold front (really a wind shift and lowering of humidity) headed toward us is likely to bring needed rain to at least some spots tonight into early tomorrow.

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: A north-south line of showers and storms moving in from the west could affect parts of Loudoun and Fauquier counties from around 8:30-10 p.m., and points east through the immediate metro area thereafter if the line doesn't dissipate, which it might as daytime heating wears off. A chance of scattered showers and storms continues overnight as a cold front nears and lows drop to the low-and-mid 70s.

Tomorrow (Saturday): The highest chance for rain or storms comes during the morning as the front passes, and most of the activity should be out of here around midday or early afternoon, though it could linger a little longer over eastern areas. It's certainly not a given that everyone will get meaningful rain, but it's the best chance in a while so let's keep our fingers crossed! Temperatures should climb to the mid-80s, and perhaps a little higher if enough sun breaks out in the afternoon.

See Camden Walker's forecast through the beginning of next week. And if you haven't already, join us on Facebook and follow us on Twitter.

Hot weather in a warming climate: In a new post today, Andrew Revkin of NYT's Dot Earth Blog explores the recent extreme heat and how it can be put into context should greenhouse gases continue to build in the atmosphere as projected. He examines trends throughout the United States over recent years as well as taking a look at the several 100+ days we faced here in D.C.

By Ian Livingston  | July 9, 2010; 7:55 PM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: A deadly combo: heat, cars and kids
Next: NatCast: A warm Washington evening


We have a family pool party scheduled out on Islip, Long Island, NY for tomorrow afternoon. What are the odds it will be washed out? Is it worth making the long haul from DC for a rainy Saturday?

Posted by: loud_curly | July 9, 2010 4:41 PM | Report abuse

i must say i'm disappointed that saturday is not getting up to 90 - we've got quite a good streak of 90 degree days going.

Posted by: walter-in-fallschurch | July 9, 2010 4:52 PM | Report abuse

Anyone else loving the clouds? They are keeping UV down as well as providing just a bit of shade!

loud_curly, I am not very confident when saying it should be "ok" for the party on Long Island. I have noticed a microclimate there which seems to be dryer than surrounding areas.

Posted by: Camden-CapitalWeatherGang | July 9, 2010 5:01 PM | Report abuse you are a meteorological masochist lol

Posted by: Camden-CapitalWeatherGang | July 9, 2010 5:03 PM | Report abuse


Wouldn't call it a sure-bet rain out up there in Islip for tomorrow afternoon. But showers and storms are certainly a risk. I'd put odds of enough showers/storms to wash the party out at around 50/50. I realize that's not extremely helpful, but can't say anything much more confident than that.

Posted by: Dan-CapitalWeatherGang | July 9, 2010 5:14 PM | Report abuse

Looks like a "can't miss" to the west.

Posted by: MKadyman | July 9, 2010 5:20 PM | Report abuse

Walter, sorry we have to cool it this weekend, so we don't want to have to ask CWG to post the longest streak of consecutive 90 DCA degree days. That might be too 1980.

But, CWG, what's the weather gonna' be like in JoBurg Sunday evening when the Rojas peel some Oranges?

Posted by: JerryFloyd1 | July 9, 2010 5:36 PM | Report abuse

@Ccamden and Dan -

Thanks for your assessment. That's what we figured, which certainly doesn't help with the planning!

Posted by: loud_curly | July 9, 2010 5:36 PM | Report abuse

Ooooo, Ooooooo...I hear rumbles near Falls Church...I hope the parched ground gets a drink.

Posted by: tbva | July 9, 2010 5:54 PM | Report abuse

First few scattered raindrops on the laptop screen 5 miles SW of Front Royal. Thunder getting a little closer. Time to go in.

Posted by: eric654 | July 9, 2010 7:13 PM | Report abuse

Looks a little cool for Jburg... nothing new there. After a sunny 60 ish day, temps should drop towards frost levels sunday night.Kind of like a pleasent day in January in dc

Posted by: pvogel88 | July 9, 2010 7:31 PM | Report abuse

Finally raining in the Blue Ridge E of Front Royal. Very slow moving, seems like this line took forever to get here. Sue Palka mentioned a flash flood warning with 3-4" possible for western counties. Hope we don't get that much.

Last night, it was close but no cigar. Heard thunder, but never got a drop.

Posted by: spgass1 | July 9, 2010 8:21 PM | Report abuse

Yes, how much are we expecting here, as the western counties appear to be getting heavy rain and are under a flash flood watch?

Posted by: wzitlau | July 9, 2010 8:29 PM | Report abuse

It smells like rain in Alexandria/Arlington -- Let's hope for slow, gentle, and steady rain for a bit. Then I'll be ready for another round of heat!

Posted by: rosilandjordan | July 9, 2010 8:31 PM | Report abuse

wzitlau is correct... it's a flash flood watch for:


Posted by: spgass1 | July 9, 2010 8:34 PM | Report abuse

Hi SP, with 1/4 inch or so over the first hour of rain, there seems to be no danger of flash floods right here. The radar totals in some spots over the mountains are in the inches, so that's probably where they will have them.

Posted by: eric654 | July 9, 2010 8:37 PM | Report abuse

Looks like we're gonna get pounded, if the radar colors are anything to go by ....

Posted by: weathergrrl | July 9, 2010 8:44 PM | Report abuse

Eric, I think you're right. The NWS spot forecast for my zip says 1/4 - 1/2" tonight... that's almost not enough :-)

Posted by: spgass1 | July 9, 2010 8:56 PM | Report abuse

Please, let it rain.

This summer's very few storms have always looked far more impressive on radar than actual precipitation amounts have measured.

Please, let it rain.

Posted by: TominMichiganParkDC | July 9, 2010 9:00 PM | Report abuse

It's a comin folks, it's a comin. Water will fall from the sky. Don't be alarmed, it's perfectly normal.

Posted by: rwalker66 | July 9, 2010 9:26 PM | Report abuse

I hate to be negative, but it sure would have been nice for these storms to come through in the late afternoon when we still had more heat from the sun to juice them up a bit more.

Posted by: rocotten | July 9, 2010 9:31 PM | Report abuse

Arcola, VA - near Dulles Airport, heavy rain started 15 min ago. Good if it lasts. Radar looks awesome!

Posted by: LoudounGeek | July 9, 2010 9:53 PM | Report abuse

eric, spgass1,(possibly my two favorite posters) i wish i lived "out west" - meaning...out there in the mountains. here in falls church we get a scaled down version of your regular weather...

Posted by: walter-in-fallschurch | July 9, 2010 9:55 PM | Report abuse

Walter, it just seems like more out here because we get it first when it comes from the west. But my annual totals are less than SP who is right on the Blue Ridge and less than your totals. Tomorrow there should be rain east of the mountains after we are done here. Got 0.55 in the gauge and raining lightly.

But if you insist, please come on out. There's lots of room and, if you live higher up like SP, plenty of snow for the sculpting or mud after the snow melts which might work too.

Posted by: eric654 | July 9, 2010 10:11 PM | Report abuse

@LoudounGeek -- hey neighbor. Light rain up here in Ashburn, north of Rt 7.

Posted by: natsncats | July 9, 2010 10:12 PM | Report abuse

Rain hitting my window so hard here in Fairfax that I couldn't hear the I came on here.

Posted by: rwalker66 | July 9, 2010 10:16 PM | Report abuse

@natsncats - rain stopped 10 min ago. I was guilty of getting my hopes up again. I will take the 0.2 in (esimtate, haven't looked at gauge yet) and be happy rest of the summer.

Posted by: LoudounGeek | July 9, 2010 10:22 PM | Report abuse

eric, you said,
"Walter, it just seems like more out here because we get it first when it comes from the west....But if you insist, please come on out. There's lots of room..."

no, it's more than that. we always get ~50% the weather you get......

and be careful what you offer... because i might someday take you up on it. not before my daughter moves out...but after that...

Posted by: walter-in-fallschurch | July 9, 2010 10:27 PM | Report abuse

Walter, thanks for the kind words. I donated my pickup truck a few years ago, but maybe one day I'll get another and can deliver a truck bed full of snow for sculpting if you need some. That would be something...

Of course, it's not always the case that we get more snow. There was one not too long ago where the bull's eye was Southern Md. Even in the February storms, we missed out a bit on the second one compared to points farther east.

Posted by: spgass1 | July 9, 2010 10:39 PM | Report abuse

@LoudounGeek -- we wuz robbed!! But it was nice while it lasted...

Posted by: natsncats | July 9, 2010 10:41 PM | Report abuse

eric, spgass1,
please provide bailey's... (and vodka...) and i'm just provide 10" when we get 3".....

i would love to live in the magic world of snowshoe, or out in the wasatch mountains in utah.... where snow just piles up.....or live where lake effects snow hppens almost daily in winter.....aaaahhh....but then all my clients would live a long way away....dang....

btw, i think it just started pouring rain here in falls church...nice....

Posted by: walter-in-fallschurch | July 9, 2010 10:47 PM | Report abuse blew up over the Town of Vienna and is heading east towards Arlington...unfortunately and like clockwork maybe ten drops fell where I live north of Vienna...not convinced on the crap out west either...just another disappointment.

Posted by: rocotten | July 9, 2010 10:59 PM | Report abuse

I am still waiting for the thunderstorm I have been watching for hours hang out over the mountains ....

Posted by: weathergrrl | July 9, 2010 11:02 PM | Report abuse

all more rain...good night.

Posted by: walter-in-fallschurch | July 9, 2010 11:08 PM | Report abuse

Wow, I can't believe that big line of yellow and red on the radar has broken up in to basically nothing. Doesn't look like we will even get a drop in HoCo. Dissapointing!

Posted by: kathyb39 | July 9, 2010 11:09 PM | Report abuse

Hard rain made it to Rosslyn. Who knows how long it will last.

Posted by: marathoner | July 9, 2010 11:19 PM | Report abuse

Here at Lake Barcroft south of 7 Corners, rained hard for 20 minutes from around 10:50 to 11:10, got 1/3 inch...wonderful!

Posted by: KPosty | July 9, 2010 11:36 PM | Report abuse

Measured an inch of rain east of Front Royal. That's a good soaking rain.

Currently 67F and sort of drizzling.

Posted by: spgass1 | July 9, 2010 11:49 PM | Report abuse

Wow, got almost .05" of rain herein NW Spotsy, barely got the driveway wet.

Posted by: VaTechBob | July 10, 2010 12:18 AM | Report abuse

Yet again, the line broke up as it moved east.

We received diddly-squat in Michigan Park: 0.02", barely enough to settle the dust. Watered our street trees for six hours this evening, and will spend another weekend watering the yard (while I pursue a prescription for Valium...)

How depressing!

Posted by: TominMichiganParkDC | July 10, 2010 12:24 AM | Report abuse

The comments to this entry are closed.

RSS Feed
Subscribe to The Post

© 2012 The Washington Post Company