Hanna Watch

Good morning, DC! Tropical Storm Hanna is in town, and we’re looking to get some pretty heavy wind and rain as it passes through. We haven’t had weather action like this since Isabel, and while Hanna isn’t quite as notable, us weather geeks are still on the beat. Through the day we’ll be watching radar, NOAA reports, local news, weather cams, weblogs, and Twitter to bring you storm updates. Reload this entry for new info as Hanna passes by, and if you’ve got storm news, Leave a comment.

11:30 PM Hanna is history, a Capital Weather Gang postmortem. I’ve switched the radar hotlink at the top of this entry to a time lapse video of the storm, taken with some help from WJLA skycam and curl. So how’d the storm treat you?

6:45 PM Well, the roads downtown are drying off, the wind hasn’t picked up any further, and the weather radar looks relatively clear. I think we can close the book on Hanna as its last precipitation leaves the region. Flooding continues in some areas, so be careful.

5:25 PM (Photo of muddy flood water in Falls Church, VA by larrygol.) Rain’s all gone from downtown, and some blue is starting to appear in the sky. Capital Weather says wind is still gusting, and don’t forget that flash flood risks still remain.

Meanwhile, Hanna continues northeast, now dumping its rain on Philly and NYC.

3:52 PM FAA airport status info for DCA still has general gate hold, taxi, and arrival delays at around 15 minutes, but Hanna is causing delays of 1 to 4 hours for flights heading north to JFK, EWR, and PHL.

3:35 PM News 8 weather people are starting to call it a wrap, saying the worst of the storm has passed. Hurricanes and tropical storms often have strong winds going well after the rain bands have passed, but the weathermen are saying this wasn’t a big wind maker, though still a record-setting soaker. Here’s some earlier video of the rain and water accumulation from BabyBlue in NoVA:

2:53 PM (Photo by philliefan99 from the WeLoveDC group.) The center of storm rotation — not quite an “eye” as this isn’t a hurricane — is now passing just east of the District. Moderate to heavy rain is back downtown, and Manassas, VA rainfall now measures 10.6″.

2:29 PM News 8 has 9.46″ rainfall at Manassas, VA. This storm is a definite soaker.

2:10 PM Wow, radar showing some really, really serious rain in the Clarendon/Ballston area right now. Just a light shower downtown though. Huntington evacuations involved 30 homes in a community called Arlington Terrace.

2:00 PM On Metro, a service disruption on the Blue and Yellow Lines: No train service between Braddock Road and National Airport due to a track circuit malfunction and flood conditions outside Braddock Road station. Shuttle bus service has been requested. Delays in both directions. News 8 is saying this storm is a big rain maker, with not so much in the way of wind.

Share photos on twitter with Twitpic 1:49 PM From @yvonneadams, “Annandale Falls,” a sidewalk turned stream. Reports on News Channel 8 of evacuation in Huntington, Alexandria. Manassas, VA is leading the rainfall totals with over 7 inches so far. Rain downtown has lightened again, and is projected to tone down to a drizzle as the afternoon goes on, but flash flood warnings remain.

1:20 PM Power outage maps by zip code from PEPCO and SMECO. From out by the Chesapeake, penguinsix is broadcasting live video of whitecaps on the Bay. Lovely.

1:14 PM This is a very fast-moving tropical storm, which will be a factor in keeping rainfall totals down. Still, expect totals of up to 8 inches in the area; currently almost 3″ at DCA. WaPo storm blog reports on the first storm-related death, a man whose car skidded off I-95 in PG County. He was killed but an infant child in the car survived.

12:30 PM Interestingly enough, the rain has weakened considerably downtown, but the wind is starting to pick up. My lower-floor apartment is shielded by buildings all around, but Wunderground has wind at DCA measuring 12 mph from ENE with gusts to 20 mph. “Addled” on Tumblr just tried going out into the storm to sign a form, and came back soaked with sandals waterlogged.

12:00 noon Now it is pouring buckets out! Still no noticeable wind, however; the flags atop buildings still hang limp. Flash Flood Watch for the District. High tide along the Potomac River will be at 1:45 PM, and a 2-4 foot storm surge may occur.

11:20 AM Raining outside, but not much wind yet. Capitalweather has the center of the storm over Norfolk, VA, with rain totals over 1″. This tweet would indicate planes are still landing at local airports, and FAA has National Airport delays at 15 minutes for takeoff and landing — expect that to get worse as the day marches on.

News, The Daily Feed

Thunderstorm Timelapse

A line of thunderstorms swept over the Metro area around 1PM this afternoon; we got home from church just as the darkening sky let loose its first drops of rain. While it stormed, I ran wget on the ABC 7/News Channel 8 webcam and got this time lapse video. Watch for the two bolts of lightning.

The storms caused a few injuries today, and capsized boats at the Aquapalooza festival on the Potomac.

The Daily Feed, The Mall

Natural History Ocean Hall Time Lapse

Via DC Metrocentric, we find that the Smithsonian National Museum of Natural History has a Flickr stream, to which they have posted a a time lapse video of construction progress on their upcoming Ocean Hall:

The Ocean Hall opens in September 2008. Being an avid scuba diver and admirer of all forms of marine life (in beauty and taste), I look forward to this eagerly.

The Mall

Fireworks Timelapse

So the weather tricked me into staying in, but I did get to view tonight’s pyrotechnics from a friend’s apartment with windows facing towards the Mall. My camera sat on a tripod, set to do a time lapse video at one-second intervals. Here is the result, consisting of 1,271 frames taken over a course of 21 minutes:

Thanks to the Internet Archive for the 1913 Edison cylinder recording of Sousa’s Stars and Stripes Forever. Sped-up video plus tinny Sousa makes for a whimsical little piece.