Atlantic Tropical Waves,Comments,Sat Pics Thread #2

HurricaneHunter914 · #401 Postby **HurricaneHunter914** » Wed Jul 19, 2006 2:09 pm

Sorry for the language but......WHAT THE HELL IS NORTH OF PR!!!!!!!!!!!!!

http://www.ssd.noaa.gov/goes/east/watl/avn-l.jpg

#402 Postby **cycloneye** » Wed Jul 19, 2006 2:10 pm

HurricaneHunter914 wrote:Sorry for the language but......WHAT THE HELL IS NORTH OF PR!!!!!!!!!!!!!

http://www.ssd.noaa.gov/goes/east/watl/avn-l.jpg

Interaction between a wave and upper trough.

#403 Postby **storms in NC** » Wed Jul 19, 2006 2:38 pm

cycloneye wrote:
HurricaneHunter914 wrote:Sorry for the language but......WHAT THE HELL IS NORTH OF PR!!!!!!!!!!!!!

http://www.ssd.noaa.gov/goes/east/watl/avn-l.jpg

Interaction between a wave and upper trough.

Oh okay can you go more into it please. It don't look so bad.

#404 Postby **storms in NC** » Wed Jul 19, 2006 2:56 pm

I would watch this area for some flare up. It seem to be the hot spot.

HurricaneHunter914 · #405 Postby **HurricaneHunter914** » Wed Jul 19, 2006 3:53 pm

I hoping for rain from it, I love rain. :lol:

#406 Postby **abajan** » Wed Jul 19, 2006 7:32 pm

cycloneye wrote:Hear the Monkey

Here is our friend the monkey.Hear what he has to say.By the way if you move your mouse up,down and left or right,you will see his head move.Enjoy it.

Luis, I hate that monkey! :lol:

He took forever to load on my ancient machine via dial-up. To make matters worse, my soundcard went on the blink a while ago. So, I can't even hear what he's (she's) saying!

Most frustrating monkey I've ever come across. If I see it again, I'm goin' ta blow its fu... Okay, abajan... easy now... get a grip...

#407 Postby **cycloneye** » Wed Jul 19, 2006 7:33 pm

A TROPICAL WAVE IS ADDED TO THE 18Z SURFACE ANALYSIS ALONG 38W
SOUTH OF 19N MOVING WEST 15-20 KT. THIS WAVE HAS FAIR SIGNATURE
WITH LOW LEVEL CYCLONIC TURNING EVIDENT ON LAST FEW EVENING VIS
IMAGES AND SHORTWAVE IR PICTURES. DESPITE THE FAIR
SIGNATURE...LITTLE CONVECTION IS ASSOCIATED WITH IT.

A TROPICAL WAVE IS ALONG 50W SOUTH OF 20N MOVING WEST NEAR 15-20
KT. THIS WAVE HAS BEEN CHALLENGING TO TRACK OVER THE PAST FEW
DAYS. HOWEVER...THERE IS MORE CONFIDENCE WITH TODAY'S ANALYZED
POSITION AS A LOW LEVEL SWIRL IS EVIDENT ALONG THE WAVE AXIS.
SIMILAR TO THE WAVE TO IT'S EAST...THIS WAVE ALSO HAS VERY
LITTLE CONVECTION ASSOCIATED WITH IT AS IT IS EMBEDDED IN A
DRY/STABLE ENVIRONMENT.

A pair of waves between Africa and the Lesser Antilles but limited convection with both.

#408 Postby **cycloneye** » Thu Jul 20, 2006 7:27 am

12:00z Full Disk

:uarrow:

I draw your attention to this visible full disk image as it's easy to see the big area of dust east of 40w by the gray appearance of the image from 40w eastward to Africa,from 7n to 26n.

#409 Postby **bvigal** » Thu Jul 20, 2006 8:08 am

Thanks for the pic Luis. Ahh, look at all that lovely dust!

Guess what we have here is volcanic dust. At least, that's what all the boaters are telling me based on color of stuff they are wiping off the caprails, etc. :wink:

#410 Postby **cycloneye** » Thu Jul 20, 2006 1:39 pm

A 1012 MB LOW IS LOCATED OFF THE COAST OF W AFRICA NEAR 14N18W
DRIFTING W. A RECENT QUIK-SCAT PASS SHOWED A CLOSED
CIRCULATION. PRESENT VISIBLE SATELLITE IMAGERY SHOWS CYCLONIC
TURNING WITH RAIN SHOWERS...THAT ARE BEING SUPPRESSED BY A PLUME
OF THICK AFRICAN DUST.

This is not a wave but a weak low just off Africa.

It looks good on the quickScat but is far north in latitud.

#411 Postby **cycloneye** » Thu Jul 20, 2006 7:24 pm

A TROPICAL WAVE IS ADDED TO THE 18Z SURFACE ANALYSIS ALONG 21W
SOUTH OF 19N MOVING WEST NEAR 15 KT. A 1010 MB LOW IS ALONG THE
TROPICAL WAVE CENTERED NEAR 15N. THIS LOW IS EVIDENT ON VISIBLE
SATELLITE IMAGERY AND AN EARLIER QUIKSCAT PASS SHOWING A NEARLY
CLOSED CIRCULATION. DESPITE THE FAIR SIGNATURE THE WAVE AND THE
LOW ARE FAIRLY DRY FEATURES WITH MUCH OF THE SHOWER ACTIVITY
BEING SUPPRESSED BY A PLUME OF THICK SAHARAN DUST.

A TROPICAL WAVE IS ALONG 43W/44W S OF 18N MOVING W NEAR 15 KT.
SOME LOW LEVEL CYCLONIC CURVATURE IS EVIDENT ON SHORTWAVE IR
SATELLITE IMAGES. LITTLE SHOWER ACTIVITY IS ASSOCIATED WITH THIS
FEATURE. THIS WAVE APPEARS TO BE THE LEADING EDGE OF A LARGE
SHIELD OF SAHARAN DUST THAT COVERS MUCH OF THE EASTERN ATLC.

A TROPICAL WAVE IS ALONG 55W S OF 21N MOVING W NEAR 15 KT. THIS
WAVE IS FAIRLY WELL-DEFINED WITH AN INVERTED V-PATTERN EVIDENT
ON SATELLITE IMAGERY. THIS INVERTED V-PATTERN CONSISTS OF
MAINLY LOW-MID LEVEL CLOUDS WITH LITTLE AMOUNTS OF DEEP MOISTURE.

Above is the 8 PM Discussion about the 3 waves currently between Africa and the Lesser Antilles.That low is already at 15n,good for a fish it develops.But plenty of dust is east of 40w impeding development at this time.

#412 Postby **cycloneye** » Fri Jul 21, 2006 10:56 am

TROPICAL WAVE IS ALONG 22W S OF 20N MOVING W 15 KT WITH A 1010
MB LOW ALONG THE WAVE NEAR 11N. THIS POSITION IS BASED ON AN
EARLIER QUIKSCAT PASS SHOWING A CLOSED CIRCULATION. HOWEVER...
THE ACTUAL WAVE LOCATION IS PROBABLY A LITTLE TO THE WEST. NO
DEEP CONVECTION IS DIRECTLY ASSOCIATED WITH THIS WAVE DUE TO THE
DENSE PLUME OF AFRICAN DUST.

From 8 AM discussion.

awc-Puerto Rico · #413 Postby **awc-Puerto Rico** » Fri Jul 21, 2006 11:33 am

cycloneye, What factors would diminish this flow of African dust? I don't remember, -do we get African dust in August and September?

#414 Postby **cycloneye** » Fri Jul 21, 2006 12:26 pm

awc-Puerto Rico wrote:cycloneye, What factors would diminish this flow of African dust? I don't remember, -do we get African dust in August and September?

It is typical in July to have these dust events.In August and September these events diminish allowing for the Cape Verde Season to get going.

#415 Postby **abajan** » Fri Jul 21, 2006 12:35 pm

awc-Puerto Rico wrote:cycloneye, What factors would diminish this flow of African dust? I don't remember, -do we get African dust in August and September?

Okay, I ain't cycloneye but I can tell you that it varies from year to year. It'll probably let up some around mid-August as the hurricane season kicks into high gear.

We in Barbados usually get the bluest skies from (say) October to February but we can get dust haze just about any time of year.

I know one thing - this dust is nowhere near as bad as what we used to get way back in the '80s. Back then, there were some days you could hardly tell where in the sky the sun was and you always had to be washing your car to clean off all the brown dust.

awc-Puerto Rico · #416 Postby **awc-Puerto Rico** » Sat Jul 22, 2006 6:33 am

It's sort of a Catch 22: Dust and sinus headaches or no dust and hurricanes!

Aquawind · #417 Postby **Aquawind** » Sat Jul 22, 2006 6:47 am

Looking real average out there..Some nice waves with impressive convection that continues to fade the further away they get from the African coast and ITCZ.. Wish the Qscat would have provided something to see this morning.. The dry and dusty skies are keeping things in check for now..

8:05am NHC discussion..

...TROPICAL WAVES...

TROPICAL WAVE IS ALONG 32W/33W S OF 20N MOVING W 15-20 KT. BROAD
LOW LEVEL SIGNATURE CURVATURE IS OBSERVED ON INFRARED SATELLITE
IMAGERY. WAVE IS EMBEDDED WITH AN AREA OF DENSE AFRICAN DUST...
THUS NO ASSOCIATED SHOWERS/CONVECTION.

TROPICAL WAVE IS ALONG 50W/51W S OF 18N MOVING W 10-15 KT.
WEAK...NARROW LOW LEVEL SIGNATURE CURVATURE IS OBSERVED ON
INFRARED SATELLITE IMAGERY. WAVE IS EMBEDDED WITH AN AREA OF
DENSE AFRICAN DUST...THUS NO ASSOCIATED SHOWERS/CONVECTION.

TROPICAL WAVE IS ALONG 65W/66W S OF 20N MOVING W 15-20 KT. WEAK
BUT WELL-DEFINED LOW LEVEL SIGNATURE CURVATURE IS OBSERVED ON
INFRARED SATELLITE IMAGERY. HOWEVER...DUE TO THE VERY DRY
CONDITIONS...NO ASSOCIATED SHOWERS/CONVECTION

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/EATL/IR4/20.jpg

http://www.cpc.ncep.noaa.gov/products/f ... itcz.shtml

Big ole area of dry air ATM.

http://www.goes.noaa.gov/browsh3.html

Tampa_God · #418 Postby **Tampa_God** » Sat Jul 22, 2006 9:41 am

Looks like the wave just west of the CV has a rotation. Can anyone back this up?

#419 Postby **SouthFloridawx** » Sat Jul 22, 2006 5:32 pm

Much of the windshear that was in the Eastern Atlantic and Caribbean Sea is no as much of a factor anymore. To me it would seem as though if the African dust would allow it's assult on these Tropical Waves we would probably be seeing a more active Atlantic Basin but, as others have said on this board including myself... climatology says the season doesn't start to pick up till the end of the month going into August. It does appear that the Tropical Wave that just emerged from the African Coast may have a better chance than it's predecessor.

http://cimss.ssec.wisc.edu/tropic/real- ... wvmid.html

Windshear Tendency
http://cimss.ssec.wisc.edu/tropic/real- ... g8sht.html

Water Vapor Loop
http://hadar.cira.colostate.edu/ramsdis ... _ls_0.html

#420 Postby **gatorcane** » Sat Jul 22, 2006 6:07 pm

SouthFloridawx wrote:Much of the windshear that was in the Eastern Atlantic and Caribbean Sea is no as much of a factor anymore. To me it would seem as though if the African dust would allow it's assult on these Tropical Waves we would probably be seeing a more active Atlantic Basin but, as others have said on this board including myself... climatology says the season doesn't start to pick up till the end of the month going into August. It does appear that the Tropical Wave that just emerged from the African Coast may have a better chance than it's predecessor.

http://cimss.ssec.wisc.edu/tropic/real- ... wvmid.html

Windshear Tendency
http://cimss.ssec.wisc.edu/tropic/real- ... g8sht.html

Water Vapor Loop
http://hadar.cira.colostate.edu/ramsdis ... _ls_0.html

Recall we had these same conversations about SAL and dust even into early August of last year - and then it all broke loose

It should pick up by mid to late August but I would expect Chris before then sometime around Aug 1st or the first week of August.

Atlantic Tropical Waves,Comments,Sat Pics Thread #2

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