Dr. Jeff Masters' WunderBlog

The Atlantic is quiet; Pakistan monsoon rains continue; last day of Russian heat wave
Posted by: Dr. Jeff Masters, 01:54 PM GMT del 18 Agosto 2010 +3
A tropical wave in the Caribbean near Jamaica is generating disorganized thunderstorm activity over the central Caribbean. Wind shear is a moderate 10 - 20 knots over the region, and water vapor satellite images show that there is some dry air to the west of Jamaica that will interfere with any development that might occur. None of the reliable computer models develop this wave.

The GFS, NOGAPS, and ECMWF continue to predict that a tropical storm will form between Africa and the Lesser Antilles Islands 3 - 7 days from now. A strong tropical wave currently moving off the coast of Africa is a good candidate for such a development. The NOGAPS model is predicting the development of a strong tropical disturbance near the coast of Honduras this weekend.


Figure 1. Extreme flooding along the Indus River in Pakistan has swollen the river to 16 miles (24 km) wide in sections, as seen in the top image from yesterday. For comparison, and image taken a year ago at this time in August (bottom image) shows that the Indus is normally just 1 - 2 km wide during monsoon season. Image credit: NASA Natural Hazards web site.

Extreme flooding and monsoon rains continue in Pakistan
In flood-ravaged Pakistan, heavy monsoon rains hit the Punjab region in the northeastern portion of the country yesterday, dropping up to 113 mm (4.45") of precipitation. The main river in Pakistan, the Indus, continues to cause extreme flooding, and has expanded to 16 miles (24 km) wide in some sections (Figure 1.) Dr. Ricky Rood, who writes our Climate Change Blog, has a sister that works in Pakistan. He has a must-read analysis of the catastrophe in Pakistan, "Pakistan: A Climate Disaster Case Study".

Moscow hits 93°F on the final day of the Great Russia Heat Wave of 2010
Temperatures at Moscow's Domodedovo airport hit 34°C (93°F) today, which is 13°C (22°F) above average. However, pressures are falling rapidly and winds are picking up out ouf the southwest in advance of a powerful cold front that promises to sweep through all of European Russia tonight, finally bringing an end to the Great Russian Heat Wave of 2010. The latest forecast for Moscow predicts Thursday's high will be just 21°C (69°F)--essentially average. With tonight's cold front will come rain to help put out the fires that continue to plague Russia with toxic smoke. Cool temperatures near of below average over the coming week will also help fire-fighting efforts.

Jeff Masters
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351. hcubed 04:51 PM GMT del 18 Agosto 2010    
Quoting clwstmchasr:


I need the edited version.


Quoting TheDawnAwakening2:

End quote.
Member Since: Maggio 18, 2007 Posts: 286 Comments: 1639
352. Snowlover123 04:52 PM GMT del 18 Agosto 2010    
Quoting jasoniscoolman2010x:
its going out to sea


He was talking about the cool dry autumnal air moving into the NE, not the CV storm that hasn't even formed yet.
Member Since: Aprile 1, 2010 Posts: 9 Comments: 2513
353. Levi32 04:52 PM GMT del 18 Agosto 2010    
Quoting hurricanefiend85:
Great Video Blog as usual today Levi!


Thank you :)
Member Since: novembre 24, 2005 Posts: 586 Comments: 25450
354. StormChaser81 04:52 PM GMT del 18 Agosto 2010    
Quoting jasoniscoolman2010x:
its going out to sea


Fall is going out to sea. lol Is the ocean going to change colors.
Member Since: Agosto 11, 2008 Posts: 0 Comments: 2315
355. 7544 04:52 PM GMT del 18 Agosto 2010    
what about the second strom will it go out to sea also ?
Member Since: Maggio 6, 2007 Posts: 0 Comments: 5925
356. canehater1 04:52 PM GMT del 18 Agosto 2010    
Quoting swlavp:
Which is it? Always, or 90%?


When I look at long range model forecasts, I first look for the development then the latitude..the timing isn't there at 120 hrs +
due to unforeseen influences (like the NE shear on ex-5 that wasn't even seen 24-48 hrs out!)
Member Since: Settembre 8, 2008 Posts: 1 Comments: 675
357. StormChaser81 04:54 PM GMT del 18 Agosto 2010    
Quoting canehater1:


When I look at long range model forecasts, I first look for the development then the latitude..the timing isn't there at 120 hrs +
due to unforeseen influences (like the NE shear on ex-5 that wasn't even seen 24-48 hrs out!)


I'm sure its a long way out.
Member Since: Agosto 11, 2008 Posts: 0 Comments: 2315
358. Levi32 04:54 PM GMT del 18 Agosto 2010    
Neither landfall nor recurvature out to sea can be ruled out at this point. There are two facts battling each other here. Firstly, the majority of all Cape Verde storms, since they develop early, end up recurving out to sea. But secondly, the pattern developing over North America is one that is a classic signature of all big US landfall seasons. The models are going back and forth on the track and that is to be expected before the system has formed, but one must be looking out for trouble threatening the eastern seaboard during the final week of August. The pattern says there should be a storm, and possibly one that threatens land. We should be ready for that possibility as the pattern has been warning us for a while now. If it recurves, that's great, but it also may try to come all the way west.
Member Since: novembre 24, 2005 Posts: 586 Comments: 25450
361. Stormchaser2007 04:55 PM GMT del 18 Agosto 2010    
Member Since: Giugno 9, 2007 Posts: 4 Comments: 15248
362. unf97 04:56 PM GMT del 18 Agosto 2010    
Quoting Levi32:
Neither landfall nor recurvature out to sea can be ruled out at this point. There are two facts battling each other here. Firstly, the majority of all Cape Verde storms, since they develop early, end up recurving out to sea. But secondly, but pattern developing over North America is one that is a classic signature of all big US landfall seasons. The models are going back and forth on the track and that is to be expected before the system has formed, but one must be looking out for trouble threatening the eastern seaboard during the final week of August. The pattern says there should be a storm, and possibly one that threatens land. We should be ready for that possibility as the pattern has been warning us for a while now.


Well stated Levi!
Member Since: Settembre 25, 2007 Posts: 0 Comments: 1193
363. Snowlover123 04:57 PM GMT del 18 Agosto 2010    
Quoting jasoniscoolman2010x:
384 hrs its way to long to tell where a hurricane is going..


Yes, indeed.... <_<
Member Since: Aprile 1, 2010 Posts: 9 Comments: 2513
364. HurricaneObserver 04:57 PM GMT del 18 Agosto 2010    
Quoting TheDawnAwakening2:


Sorry about that. I didn't want to mess up my thoughts while it was all coming out at once so I just wrote it up like that. I will try and do a better job of breaking it up.

Your post should have an edit button on it to go back and fix it. Or you could turn it into a blog entry :)
Member Since: Maggio 27, 2010 Posts: 0 Comments: 58
366. Snowlover123 04:58 PM GMT del 18 Agosto 2010    
Quoting Levi32:
Neither landfall nor recurvature out to sea can be ruled out at this point. There are two facts battling each other here. Firstly, the majority of all Cape Verde storms, since they develop early, end up recurving out to sea. But secondly, the pattern developing over North America is one that is a classic signature of all big US landfall seasons. The models are going back and forth on the track and that is to be expected before the system has formed, but one must be looking out for trouble threatening the eastern seaboard during the final week of August. The pattern says there should be a storm, and possibly one that threatens land. We should be ready for that possibility as the pattern has been warning us for a while now. If it recurves, that's great, but it also may try to come all the way west.


+1
Member Since: Aprile 1, 2010 Posts: 9 Comments: 2513
367. TropicalAnalystwx13 04:58 PM GMT del 18 Agosto 2010    
Good Afternoon All!
Member Since: Luglio 6, 2010 Posts: 89 Comments: 25289
368. 7544 04:59 PM GMT del 18 Agosto 2010    
looks like the high builds back in for the second strom to move wnw at the end of the gfs run look where its located . and where the second strom might end up hmmmmm
Member Since: Maggio 6, 2007 Posts: 0 Comments: 5925
369. shawn26 04:59 PM GMT del 18 Agosto 2010    
Anyone have the link to the storm you guys are talking about in the gulf?
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370. GainesvilleGator 04:59 PM GMT del 18 Agosto 2010    
For any wave exiting Africa, the models may show it hitting Miami and it recurves East of Bermuda. It may show a fish storm that ultimately enters the GOM. The margin of error is pretty high take it that said tropical system even develops.
Member Since: Settembre 11, 2005 Posts: 4 Comments: 732
372. all4hurricanes 05:00 PM GMT del 18 Agosto 2010    
This thing still has to develop before we can speculate where it's heading in a week I'm not sold that it's becoming Daniele yet
Member Since: Marzo 29, 2008 Posts: 0 Comments: 2192
373. WeatherMSK 05:00 PM GMT del 18 Agosto 2010    
Well back to work. Bottome line, it appears it will be a very busy week next week.
Member Since: Febbraio 12, 2007 Posts: 0 Comments: 465
374. Enigma713 05:02 PM GMT del 18 Agosto 2010    
Quoting Levi32:
Neither landfall nor recurvature out to sea can be ruled out at this point. There are two facts battling each other here. Firstly, the majority of all Cape Verde storms, since they develop early, end up recurving out to sea. But secondly, the pattern developing over North America is one that is a classic signature of all big US landfall seasons. The models are going back and forth on the track and that is to be expected before the system has formed, but one must be looking out for trouble threatening the eastern seaboard during the final week of August. The pattern says there should be a storm, and possibly one that threatens land. We should be ready for that possibility as the pattern has been warning us for a while now. If it recurves, that's great, but it also may try to come all the way west.

+1 (as usual for Levi's posts)
Member Since: Agosto 9, 2010 Posts: 0 Comments: 114
375. hydrus 05:03 PM GMT del 18 Agosto 2010    
Quoting DestinJeff:
"Beware the Ides of Next Week" says this model:

The GEM model has a storm forming off the S.W.Florida coast and a low north of the Southern Bahamas...Link
Member Since: Settembre 27, 2007 Posts: 1 Comments: 14285
376. blsealevel 05:03 PM GMT del 18 Agosto 2010    


Well, it's still raining in La
Member Since: Agosto 23, 2008 Posts: 0 Comments: 1916
377. hcubed 05:04 PM GMT del 18 Agosto 2010    
Quoting GainesvilleGator:
For any wave exiting Africa, the models may show it hitting Miami and it recurves East of Bermuda. It may show a fish storm that ultimately enters the GOM. The margin of error is pretty high take it that said tropical system even develops.


True. Even the NHC's "cone of doom" has a margin of error at 5 days out.

And that's AFTER a storm has formed...
Member Since: Maggio 18, 2007 Posts: 286 Comments: 1639
378. CaribBoy 05:05 PM GMT del 18 Agosto 2010    
Situation over the atlantic for the next few days remains unclear. Something should form, but where and when is hard to determine with precision. In addition, we cannot trust models regarding potential tracks. 180h+ is far away. It's still too early to say whether it will go out to sea or make landfall somewhere or even speak about what will the upper atmosphere look like this far out.
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379. nola70119 05:06 PM GMT del 18 Agosto 2010    
As soon as I see the images of Africa, I know there is nothing happening--later folks, enjoy your day.
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380. IKE 05:07 PM GMT del 18 Agosto 2010    
Member Since: Giugno 9, 2005 Posts: 23 Comments: 37044
382. LoneStarWeather 05:10 PM GMT del 18 Agosto 2010    
Quoting DestinJeff:
"Beware the Ides of Next Week" says this model:


Careful! You're giving away too many tricks of the trade there!
Member Since: Settembre 8, 2001 Posts: 0 Comments: 391
383. IKE 05:10 PM GMT del 18 Agosto 2010    
Quoting DestinJeff:


doesn't need to go past 144 to see what is happening.


Looks like it's starting to turn more WNW to NW on the end of the run.
Member Since: Giugno 9, 2005 Posts: 23 Comments: 37044
385. lucieloveslost 05:11 PM GMT del 18 Agosto 2010    
We could sure use some rain North of Orlando, near Daytona Beach. MISERABLY hot out today!! And they say for the weekend....uggghhhh
386. crashingwaves 05:12 PM GMT del 18 Agosto 2010    
We will see something form, as we are entering the peak season. I'm going with the last two weeks of August. Look out folks!
Member Since: Luglio 8, 2008 Posts: 0 Comments: 158
387. LoneStarWeather 05:12 PM GMT del 18 Agosto 2010    
Quoting CaribBoy:
Situation over the atlantic for the next few days remains unclear. Something should form, but where and when is hard to determine with precision. In addition, we cannot trust models regarding potential tracks. 180h+ is far away. It's still too early to say whether it will go out to sea or make landfall somewhere or even speak about what will the upper atmosphere look like this far out.

Reach out with your feelings. Use the force...
Member Since: Settembre 8, 2001 Posts: 0 Comments: 391
390. IKE 05:13 PM GMT del 18 Agosto 2010    
Quoting DestinJeff:
My birthday is Augbust 20th.

Think we'll have a TC by then?

Or maybe a wave over Central Africa that should be the one to watch next week as things start to pop and get very intereting in the Atlantic.


Probably a TD heading for a TS by then.
Member Since: Giugno 9, 2005 Posts: 23 Comments: 37044
391. TropicalAnalystwx13 05:13 PM GMT del 18 Agosto 2010    
The most likely time for this system to form would be Friday to Monday.
Member Since: Luglio 6, 2010 Posts: 89 Comments: 25289
392. Hurricanes101 05:15 PM GMT del 18 Agosto 2010    
Calling something a fish before it is even developed really makes any sort of analysis on future track pointless

But I guess some just can't resist the urge to label something before its formed; to me that shows a lack of knowledge. Some of those same people bash others for counting on long range models and yet they do the same thing; they call it a fish because the models hint at it.
Member Since: Marzo 10, 2010 Posts: 1 Comments: 6902
393. Huracaneer 05:15 PM GMT del 18 Agosto 2010    
So what does everybody thinks about that low off the West Coast of Florida that the CMC keeps showing at about 144 hours? I dismissed at first, but it's showing up now on several runs. Levi?
Member Since: Agosto 21, 2007 Posts: 0 Comments: 298
395. nrtiwlnvragn 05:15 PM GMT del 18 Agosto 2010    
Quoting DestinJeff:
My birthday is Augbust 20th.

Think we'll have a TC by then?

Or maybe a wave over Central Africa that should be the one to watch next week as things start to pop and get very intereting in the Atlantic.


Another Leo? I started my next trip around the sun today.
Member Since: Settembre 23, 2005 Posts: 11 Comments: 8923
396. hydrus 05:16 PM GMT del 18 Agosto 2010    
Quoting IKE:
12Z CMC...
I noticed that the CMC spins up a couple in the Eastern Pacific also.
Member Since: Settembre 27, 2007 Posts: 1 Comments: 14285
397. ShenValleyFlyFish 05:16 PM GMT del 18 Agosto 2010    
Quoting DestinJeff:
"Beware the Ides of Next Week" says this model:

You stole PsychoticMaria's weather forecasting kit. Go back to your own Magic 8 Ball. At least you have some idea how to work it. You ever see The Sorcerer's Apprentice? You are messing with Dark Forces you know not of.
Member Since: Settembre 9, 2007 Posts: 36 Comments: 4684
398. belizewunderfan 05:17 PM GMT del 18 Agosto 2010    
Not a Met. just a fan but i have 2 questions: 1. Is the "tropical disturbance" forcasted by one of the models near Honduras based on the present wave south of Jamaica? 2. Can someone please post an update sattelite image of the Caribbean?
Member Since: Giugno 30, 2010 Posts: 0 Comments: 83
400. WindynEYW 05:19 PM GMT del 18 Agosto 2010    
Quoting belizewunderfan:
Not a Met. just a fan but i have 2 questions: 1. Is the "tropical disturbance" forcasted by one of the models near Honduras based on the present wave south of Jamaica? 2. Can someone please post an update sattelite image of the Caribbean?
Member Since: Settembre 13, 2007 Posts: 0 Comments: 331
401. MahFL 05:19 PM GMT del 18 Agosto 2010    
Quoting Neapolitan:


Not likely. The fool doesn't have a shred of integrity. But I tell you, he's sure not afraid to go out on a limb. For instance, look at this bold prediction:

Bastardi predicts severe cold will hit Alaska and western and central Canada.

Oh, no! Does he mean to tell us it will be cold in Alaska and Canada this winter?! That never happens! Stop the presses! Alert the populace!

;-)


He said severe cold, not cold.
Member Since: Giugno 9, 2004 Posts: 0 Comments: 2427

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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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