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« The More Things Change | Main | Apparently, I Take After My Ancestors »

So Far, So Good

Yesterday was the statistical peak of hurricane season, and we haven't even had to consider putting up the shutters yet this year, at least in south Florida. Of course, I'm probably speaking too soon.

[Update mid morning]

Is Humberto about to form? It's still too far out to worry about it, but this is the first potential storm that I've seen this season that any models indicate could eventually target Florida. But it could also head south like Dean and Felix did, or up into the Atlantic and affect no one, as so many storms did last year. Here's more from Jeff Masters:

I expect this will allow 91L to develop into a tropical depression on Thursday. The HWRF brings it to a Category 3 hurricane by Sunday, at a position near 19N 58W, about 500 miles east-northeast of Puerto Rico. This is too aggressive an intensification rate, but I expect 91L will be at least a strong tropical storm by Sunday. The 06Z run of the GFDL model is more believable, making 91L a 55 mph tropical storm about 800 miles east of Puerto Rico on Sunday. This storm is definitely a threat to the Lesser Antilles Islands. It is too early to say if the northern islands are more at risk, as the current model runs are indicating. The system may represent a threat to the U.S. East Coast ten or more days from now, but there is no way to judge the likelihood of this.

I'm going to LA on Sunday for the week, and Patricia will be up in Orlando. It will be just our luck if the hurricane comes while we're out of town and can't prepare for it. I may be putting up shutters on Saturday, depending on what the track look like.

And this is a little disturbing:

Wind shear the past 11 days (Figure 3) has been below normal over most of the MDR. These conditions are expected to continue over at least the next two weeks, according to the latest forecast from the GFS model. African dust activity has been quite low the past month, and I don't see any changes to the general circulation pattern that would change this. Steering current patterns are expected to remain the same as we've seen since since late July, with a series of weak troughs and ridges rippling across the Atlantic, and no major troughs or ridges locking into place. This steering pattern favors a near-normal chance of hurricane strikes for the entire Atlantic. Due to the weak nature of the troughs of low pressure expected, we'll have fewer recurving storms that miss land than normal. Indeed, all but one of the seven named storms we've had this year have affected land (Chantal was the exception).

Even though we're past theoretical peak, it could be a long season.

Posted by Rand Simberg at September 11, 2007 06:39 AM
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Uh-oh, Rand - You just jinxed yourself.

Posted by Barbara Skolaut at September 11, 2007 07:43 AM

Barbara, I'm quite confident that my blog posts have no influence whatsoever on the weather. ;-)

Posted by Rand Simberg at September 11, 2007 07:47 AM

Humberto? That is NOT a name for a hurricane. One thinks of a plodding fat mass of moisture unable to quite execute a nifty turn, let alone spin. No, I wouldn't worry about it.

Posted by Toast_n_Tea at September 11, 2007 09:21 AM

I thought global warming guaranteed more numerous, bigger, stronger and thereby, more dangerous hurricanes. Was Algore wrong?

As much as I don't want to see damage and death, we need something to break our drought here in NC.

Posted by Steve at September 11, 2007 10:19 AM

Steve, The probability of every hurricane in 2007 reaching Cat 5 status, based on current data is 100%. :-) Fact. And I didn't even cook the stats!

Even Algore can't improve on that.

Actually two records have been broken this season. But of course probabilities are one thing. The samples we get are another thing, so I might not be smirking the next time you ask the question.

Check out the arctic ice levels. That should heat you up:

http://nsidc.org/news/press/2007_seaiceminimum/20070810_index.html

Posted by Toast_n_Tea at September 11, 2007 11:28 AM

"I'm quite confident that my blog posts have no influence whatsoever on the weather."

Don't be too sure, Rand - It's not called Transterrestrial Musings for nothing.... ;-p

Posted by Barbara Skolaut at September 11, 2007 02:27 PM

So you people are saying Rand doesn't control the weather? That's crazy talk.

Posted by Jonathan at September 11, 2007 04:55 PM

Humberto? That is NOT a name for a hurricane. One thinks of a plodding fat mass of moisture unable to quite execute a nifty turn, let alone spin. No, I wouldn't worry about it.

That's not very multicultural progressive for you, TNT. After all, it was a Congressional Democrat that pushed NOAA to use more ethnic names. I thought you agreed with Congressional Democrats?

Posted by Leland at September 13, 2007 06:25 PM


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