Tropical wave bringing heavy rain to northern Lesser Antilles
A tropical wave near 18N, 60W is entering the northernmost Lesser Antilles Islands and is generating some disorganized heavy thunderstorm activity. This wave is under about 20 knots of wind shear, due to strong upper-level westerly winds. The strong upper-level winds are associated with the counter-clockwise flow of air around an upper-level cold-cored low pressure system a few hundred miles north of Puerto Rico. As the wave progresses west to west-northwest through Tuesday, thunderstorm activity will increase, due to interaction with the upper low. The rains from these thunderstorms will bring the threat of flooding to Puerto Rico on Monday, the Dominican Republic on Tuesday, and Haiti on Wednesday. The upper low will also bring high wind shear of 20 - 30 knots over the the wave on Monday and Tuesday. No development of the wave is likely until at least Thursday, when it will be over the eastern Bahamas and eastern Cuba. At that time, shear is expected to drop below 20 knots, and the wave has the potential to develop. However, none of the reliable computer models is calling for tropical cyclone development over the next seven days. I expect that this wave will eventually enter the Gulf of Mexico early next week. NHC is giving the wave a 10% chance of developing into a tropical depression by Tuesday.

Figure 1. Morning satellite image of tropical wave entering the Lesser Antilles Islands.
Next post
I'll have a new post on Monday.
Jeff Masters
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Blog Update
Several features to keep an eye on
Want to show me those brief comments in which I have proven myself? I happen to have over 13 years in forecasting experience... and more knowledge than at least half of the folks here...
XCool, you shouldn't have a young boy looking and reading through a public online weather forum/blog, you caught my dirft there, WTF, :0. Assuming of course, it's actually happening. BTW, aquack, Senior year, madame, I'll be hopefully off to graduate School next fall, I've taken' the LSAT already, hopefully I passed, and then I'll be of to Law School, ma'am.
That is interesting. I took the LSAT recently, and I have my score. One other observation, you do not "pass" the LSAT. Go on to your account at LSAC.org and retrieve your score.
And to stay on topic, I am liking the wave for slow development. Westward as well. I believe that is a relatively safe bet.
The weather overcast slight rain the met office had issue flash flood watch yesterday
Swirls at da Mouth of the River...casting ?
That will change, First out never gets the worm.
Wrong Wrong Wrong...
There may not have been any advisories from HPC on Alex. Issuance of Tropical Cyclone Advisories by HPC:
Excerpt:
Under NWS Directive 10-601 Section 6.9.2.2, "The HPC will issue public advisories after NHC discontinues its advisories on subtropical and tropical cyclones that have moved inland, but still pose a threat of heavy rains and flash floods in the conterminous United States or adjacent areas within Mexico which affect the drainage basins of NWS River Forecast Centers.
Loop
Nice little spin but doesn't look too bad yet.
Been good.
Both could be signs there are leaks in the well that's been capped off for three days.
The official spoke to The Associated Press on condition of anonymity Sunday because an announcement about the next steps had not yet been made.
The official is familiar with the spill oversight but would not clarify what is seeping near the well. The official said BP is not complying with the government's demand for more monitoring. BP spokesman Mark Salt declined to comment on the allegation, but said "we continue to work very closely with all government scientists on this."
Warm, with a 100% chance of arguing.
Exactly blobs? No... not exactly. ;) They are tropical disturbances... well.... the one near the leeward and the one of the African Coast are.... I agree that it may be a while until actual formation occurs... but August 10th is probably a little bit of an over statement
As far as the issues with 'trolls', please remember that no matter what anyone says to you, only you are responsible for your reactions. The best reaction is to ignore.
Thanks again for the appropriate use of this blog. And now back to the tropical weather....
Great update!
I think the wave off the coast of Africa will develop if it can make it past SAL. ALl it needs to do iis better define its closed circulation, acquire TS winds, and gain organized convection and we have TS Bonnie.
Usually between Jefferson and St. Bernard Parish.
Uh there is no high shear over the Caribbean lol can you read a map? Link
No, No, he's saying that hurrikate is a troll and dont respond to her.
Saw dat skyepony.
Itsa creepy.
Yes... I agree there.... if it can develop BEFORE hitting that dry, dusty air... the SAL may not even affect it that much... I think it has at least some chance.... but we also have to give it more time over water to see what happens with it.
Depends on how many Hurricane ya had at Pat O's usually.
No, I dont think it will develop...
Quoting wfyweather:
1131. weatherman12345 10:34 PM GMT on July 18, 2010
Quoting wfyweather:
Exactly blobs? No... not exactly. ;) They are tropical disturbances... well.... the one near the leeward and the one of the African Coast are.... I agree that it may be a while until actual formation occurs... but August 10th is probably a little bit of an over statement
troll dont respond
I am far from a troll.... and I'd appreciate it if you dont attack me.. im not looking for a ban... and thats what ill get if i get attacked one more time..
no no not you talkin bout the person u just quoted
Sorry man,,,,, been a rough day in my neck of the woods.
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