This forum: (For weather-related questions)

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senorpepr
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#21 Postby senorpepr » Wed Jul 16, 2008 2:22 pm

RL3AO wrote:Offtopic: Its quite remarkable when you look how far north some of these European cities are. Minneapolis is at the same latitude as Torino, Italy. London is at the same latitude as Calgary.

Another one of my favorites is the distance from NYC to LA is about the same as London to Baghdad.


It's funny you mention that. When I was first stationed in Germany, during our introduction to European climatology, they mentioned that our base (the same base I'm moving to this fall) lies about 9 miles north of the northern most point in the CONUS. The northernmost point of the CONUS (northern Minnesota) is 49°23'N. Our base is at 49°31'N.
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#22 Postby LeeJet » Wed Jul 16, 2008 3:32 pm

It's amazing that Paris, LDN, Hamburg, and Frankfurt all receive less than 30 inches of rain per year.
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#23 Postby senorpepr » Wed Jul 16, 2008 4:52 pm

LeeJet wrote:It's amazing that Paris, LDN, Hamburg, and Frankfurt all receive less than 30 inches of rain per year.


The best time for them to get precipitation is during transition season (spring and fall). They don't get a lot of widespread thunderstorms. Summertime, most of the activity is in the north (UK, Scandinavia) whereas in the summertime, much of the activity is in the south (Mediterranean).



What sticks out in my mind early Spring (March-April). It would rain nearly everyday, albeit a small amount. Very cloudy too. This is mainly caused by how the frontal boundaries set up. You see long "frontal trains" (one system connected to the next, and so on)--all with occlusions. This keeps the same areas under cloud cover until the longwave pattern shifts.



(lol... I've already told my wife we're going on a long vacation next spring to the Philippines. I'd rather have nice warm days in the 80°s over cold, drizzly days in the 50°s in Germany.)
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#24 Postby ts_kakolina » Wed Jul 16, 2008 8:06 pm

Many times I read about systems that will "die" or be "kill" after they enter the Caribbean. Many people gave this area a name, I'm not sure if is graveyard. Could anyone tell me the name. Sorry if this is consider an stupid question.

Thanks 8-)
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#25 Postby RL3AO » Wed Jul 16, 2008 9:15 pm

ts_kakolina wrote:Many times I read about systems that will "die" or be "kill" after they enter the Caribbean. Many people gave this area a name, I'm not sure if is graveyard. Could anyone tell me the name. Sorry if this is consider an stupid question.

Thanks 8-)

Not sure. Maybe someone knows. I don't know how you could consider any part of hte Caribbean a graveyard during peak season. I know there is a popular misconception that if a storm doesn't develop before the Windwards that it won't develop until the Western Caribbean. Thats not true. Maybe someone knows what your talking about though.
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Re: This forum: (For weather-related questions)

#26 Postby Cape Verde » Mon Jul 21, 2008 8:49 pm

What makes a hurricane move?

I have a fairly good idea of what steers them and what they seek and what they avoid. But why do they want to move at all? It can't be because there is a greater weakness in front of them than behind, or we'd occasionally see them back up even without bumping into a ridge.
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#27 Postby RL3AO » Wed Aug 13, 2008 7:20 am

Question on the whole convergence thing.

On the maps like this - http://cimss.ssec.wisc.edu/tropic/real-time/atlantic/winds/wg8conv.html

How are these maps created? What data do they use? Do they wait until convection develops before convergence is added to the map or is it added before?
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#28 Postby wobblehead » Sat Aug 23, 2008 12:51 pm

What is a Herbert Box? Please pardon me this has been asked in another topic.
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Re:

#29 Postby RL3AO » Sat Aug 23, 2008 1:45 pm

wobblehead wrote:What is a Herbert Box? Please pardon me this has been asked in another topic.


http://www.storm2k.org/phpbb2/viewtopic.php?f=29&p=1785742#p1785742
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Re: This forum: (For weather-related questions)

#30 Postby Frank P » Fri Aug 29, 2008 4:28 pm

Can someone please post a link to the Google Earth Gustav model runs.. I had it but not I can't find the link anymore

thanks

I found it...

http://www.tropicalatlantic.com/plots/07.shtml#nhc
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Re: Re:

#31 Postby lonelymike » Fri Jun 11, 2010 9:57 pm

RL3AO wrote:
ts_kakolina wrote:Many times I read about systems that will "die" or be "kill" after they enter the Caribbean. Many people gave this area a name, I'm not sure if is graveyard. Could anyone tell me the name. Sorry if this is consider an stupid question.

Thanks 8-)

Not sure. Maybe someone knows. I don't know how you could consider any part of hte Caribbean a graveyard during peak season. I know there is a popular misconception that if a storm doesn't develop before the Windwards that it won't develop until the Western Caribbean. Thats not true. Maybe someone knows what your talking about though.



Eastern Caribbean has the reputation of being a graveyard for canes.
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Re: This forum: (For weather-related questions)

#32 Postby cycloneye » Fri Jun 11, 2010 10:15 pm

Well,I bring one example of a powerful hurricane that gained more intensity from cat 3 to cat 4 in the Eastern Caribbean and that was Ivan,so sometimes is a graveyard but not always is that way.

21A 11.90 -61.20 09/07/18Z 105 957 HURRICANE-3
22 12.00 -62.00 09/07/21Z 105 956 HURRICANE-3
22A 12.00 -62.60 09/08/00Z 115 950 HURRICANE-4
23 12.10 -63.30 09/08/03Z 115 950 HURRICANE-4
23A 12.30 -64.10 09/08/06Z 115 946 HURRICANE-4
24 12.40 -64.80 09/08/09Z 120 946 HURRICANE-4
24A 12.50 -65.50 09/08/12Z 120 955 HURRICANE-4
25 12.70 -66.20 09/08/15Z 120 955 HURRICANE-4
25A 13.10 -67.00 09/08/18Z 120 949 HURRICANE-4
26 13.40 -67.70 09/08/21Z 120 947 HURRICANE-4
26A 13.40 -68.40 09/09/00Z 125 938 HURRICANE-4
27 13.60 -69.10 09/09/03Z 125 938 HURRICANE-4
27A 13.70 -69.50 09/09/06Z 140 925 HURRICANE-5

Image
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#33 Postby aerology » Sun Jul 18, 2010 12:25 am

Does anyone know of a source of DAILY IKE or ACE VALUES data for tropical storm activity, for as many years as possible I could down load and plot as I have tornado production.

http://research.aerology.com/severe-wea ... roduction/

With an eye toward whether daily Lunar declination changes have any correlation to the past patterns, of storm intensity.

Individual storms like Camile, Katrina, and Rita seem to repeat to similar conditions and I would like to plot the relationships in the separate basins and global total for at least several (preferably as many as data is available) years of daily data of IKE or ACE strength numbers compiled by a Known reliable source to base my work from.

I think there will appear in the plottings some pattern, whether consistent or not I would like to find out, in case there is enough strength of correlation to base some strength consideration forecasts on in the future.

If any one could drop a link to the tabulated data I would much appreciate it. Google searches don’t do the job it seems, too far off the beaten social media pathways.

Thanks Richard Holle
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#34 Postby Chacor » Mon Jul 19, 2010 8:05 pm

Wikipedia used to have pages calculating the ACE values of each storm by advisory, so you could simply calculate from those the daily values. A bit more work than what you asked for, but it works. Not sure if they still have those though.
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Re: This forum: (For weather-related questions)

#35 Postby Typhoon10 » Wed Aug 11, 2010 2:26 am

I am a keen amateur with a interest in Storms. At present I now have about 10 websites on my favourites.

In terms of "tracking a system" I tend to look at the NRL website to see if there is a Invest here in the WPAC region, then after that will check JMA/JWTC websites to see if they have developed. Is this the best way or do the most experienced even check other sources/websites even before the NRL.

Basically I would like to "track" a system as early as possible right through to dissapation and learn each step of the way.

This website is excellent, but sometimes feel "dumb" because there are so many more intelligent and experienced people on here.
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#36 Postby brunota2003 » Thu Aug 12, 2010 8:38 am

Really, I will say this is probably the best site to track systems from before they develop all the way through to after they dissipate/transition to an extratropical system. We usually pull images from the NRL/other sites, along with posting any forecasts from the different agencies as they come out (and as people have the time to, of course). Sure, as an amateur, the ropes can be hard at first, but you'll learn quickly =] Feel free to ask any questions and even browse through the previously asked questions...never know what you'll learn! I have been coming here since I was 14, and I've learned a great deal in those 5 years.
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