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Posted at 3:15 PM ET, 09/ 3/2008

PM Update: Heat Continues Ahead of Hanna

By Ian Livingston

More humid Thursday; Hanna threatens an active Saturday

Current D.C. area temperatures, courtesy Weather Bonk. Map by Google. Hover over and click temperatures for more info. Click and hold on map to pan. Refresh page to update.

Wall to wall sunshine today has helped produce another hot one. Temperatures have reached the low 90s throughout the area this afternoon, with a few readings in the mid 90s, as humidity levels increase just enough to be noticeable. If you're sick of summer, it looks like you're out of luck in the short term.

Tonight: We'll stay mostly clear overnight with increased levels of humidity. Lows should bottom out around 70 in the city while dropping to the mid 60s in the suburbs. Winds will be light from the east.

Tomorrow: Thursday will again be mostly sunny and hot with a bit more humidity than today thanks to a wind from the south. Highs will reach the low-to-mid 90s across the area, or about 10 degrees above average in spots.

Tropics: Hanna remains the big short-term story for the area. Elsewhere, Ike and Josephine continue to spin west through the Atlantic. The National Hurricane Center expects Ike to become a major hurricane in the next few days as it tracks toward the Bahamas.

See Dan's full forecast through the weekend, and NatCast plus UnitedCast for the outlook for tonight's games.

By Ian Livingston  | September 3, 2008; 3:15 PM ET
Categories:  Forecasts  
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Comments

I'm already calling BUST on TS Hanna or it's remnants comming anywhere close to our area.

Posted by: Havoc | September 3, 2008 3:50 PM | Report abuse

Capital Weather Gang: I am supposed to go to Rehoboth Beach this weekend. How bad will it be there?

Posted by: spf | September 3, 2008 3:58 PM | Report abuse

As mentioned by Dan earlier, landfall of Hanna has been delayed in the official forecasts from Friday evening to Saturday morning. Should Hanna again slow it's approach, it may be the process transitioning to an extratropical cyclone at it interacts with the approaching frontal system from the west. If this occurs, history indicates that all bets are off now through at least Saturday as to prospective effects locally in regard to rainfall distribution and winds.

see: http://blog.washingtonpost.com/capitalweathergang/2008/07/when_storms_go_extratropical.html#more

Posted by: Steve Tracton | September 3, 2008 4:01 PM | Report abuse

Today's temperature at National (at least 95) is the warmest since July 21 when we hit 96.

Posted by: Ian, Capital Weather Gang | September 3, 2008 4:09 PM | Report abuse

spf: Rehoboth may be dealing with a very stormy weekend, and possibly hazardous, with power outages and flooding. But uncertainties remain large, so stay tuned.

Posted by: Capital Weather Gang | September 3, 2008 4:14 PM | Report abuse

The 5:00 pm discussion indicates favorable conditions for strenghtening and accelerating? Go get you toilet paper and water . . .

Posted by: Uncle Dak | September 3, 2008 5:06 PM | Report abuse

Have you posted the number of 90+ degrees at KDCA and the winning guess? You said, "We'll rank the guesses that come in from best to worst in early September..."

Mr. Q.

Posted by: Mr. Q. | September 3, 2008 5:20 PM | Report abuse

This question may be premature, but is Ike expected to follow a northern path as well once nearing the Caribbean?

Posted by: mcleaNed | September 3, 2008 6:23 PM | Report abuse

The track on stormpulse.com shows Hanna making landfall in North Carolina? As some sort of TS/H1 hybrid?

Posted by: Laura in NWDC | September 3, 2008 6:41 PM | Report abuse

The problem with Hanna: This storm is having an awful lot of trouble getting its act together down around the Bahamas. It still looks more like a SUB-TROPICAL STORM to me!

If it gets up here around us and keeps trending towards a more easterly track, we may not see all that much but still could have about 0.75 inch rain and rather gusty winds for a time. Despite this, Arlington County continues to warn of a potential "Alert" situation on Saturday.

Posted by: El Bombo | September 3, 2008 7:14 PM | Report abuse

The latest update from the National Hurrican Center and a look at the weather channel website still seems to support my guess that Gustav may beat Hannah to D.C.

I'll hedge my bet by saying that Gustav will probably pass North of D.C. even as Hannah may pass East of D.C.

But both will result in rain, Rain, and More RAIN!!

Posted by: Leo Chen | September 3, 2008 7:22 PM | Report abuse

I have to admit that I'm getting pretty nervous about Hanna's arrival near here - and the potential for going extratropical just makes me more anxious. Based on today's CWG posts, I'll double my dock lines and fenders, remove the sails and gasoline...but I won't unstep the mast unless we're sure of a TS or higher strength within 50 miles.

Posted by: ~sg | September 3, 2008 7:50 PM | Report abuse

mcleaNed, it's probably too early to say anything about Ike's future track with much certainty. History would say a storm where it is has some trouble hitting the U.S. Today's EURO brings a Ike right up the east coast from S Florida to Maine as a hurricane. It does appear a trough will approach the east around the same time Ike gets into dangerous range of the coast, and this may keep it an ocean storm that curves back before hitting. It's really too far off to say anything more definitive.

Posted by: Ian, Capital Weather Gang | September 3, 2008 7:50 PM | Report abuse

Ike has become a category 3 hurricane this evening after rapid intensification.

Posted by: Ian, Capital Weather Gang | September 3, 2008 8:05 PM | Report abuse

Thanks for the reply/update, Ian. Category 3? That was fast!

Posted by: mcleaNed | September 3, 2008 8:37 PM | Report abuse

Argh! The latest track puts hanna even further east. :(

Posted by: Havoc | September 3, 2008 8:39 PM | Report abuse

If the latest track puts Hannah even further east, does that mean we get hammered or not? Sure don't want a repeat of Isabel, that's for sure.

Posted by: weatherwomanwannabe | September 3, 2008 9:22 PM | Report abuse

Accuweather has DC area getting 2.19" from Hanna.

Posted by: steve takoma park md | September 3, 2008 10:08 PM | Report abuse

Re: Weatherwomanwannabe-

In your case it sounds as if further east would be a good thing. However, I for one love storms.

Not that I love seeing peoples property damaged, or life safety put at risk, but to see the raw power of mother nature is a beautiful thing. I love all forms of extreme weather. The fact that property is damaged, and lives are lost because of it, is a sad fact, and an incentive for technology to work with, and not against nature.

Posted by: Havoc | September 3, 2008 10:35 PM | Report abuse

I expect less than 1" of rain from Hanna.

Posted by: VaTechBob. | September 3, 2008 10:55 PM | Report abuse

Ike is now a category 4 hurricane with 135 mph winds, NHC expects it to fluctuate in intensity but be in the Bahamas as a category 4 by late Monday.

Posted by: Ian, Capital Weather Gang | September 3, 2008 11:39 PM | Report abuse

weatherwomanwannabe: A track farther east than currently forecast may confine tropical storm conditions close to the shoreline. But note that Hanna's wind field is currently rather expansive, which means that a coastal track may not spare D.C. of tropical storm conditions. Also, the Hurricane Center noted tonight that its confidence in the track forecast is not very high at this point, due to disagreement in computer models. Check back with us frequently as the forecast evolves...

Posted by: Andrew Freedman, Capital Weather Gang | September 3, 2008 11:44 PM | Report abuse

The Satellite images continue to show Gustav's Low Pressure swirl moving NE, approaching the Ohio Valley.

The National Hurrican Center has transferred reports about Gustav to the Hydrometeorological Prediction Center in Camp Srings, MD. And they report that Gustav is slowly moving NorthEast, but should pick up speed tonight, moving through the Ohio Valley Thursday -- tomorrow.

So, when is Hannah predicted to reach our neck of the woods? 'Cause I've been predicting that Gustav, or what's left of Gustav, will reach us before Hannah.

And I'm counting on the Jet Stream to help Gustav along.

Posted by: Leo Chen | September 4, 2008 12:10 AM | Report abuse

The comments to this entry are closed.

 
 
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