Tropical Wave along 55W

[Gustywind]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
805 PM EDT SAT JUL 24 2016


...TROPICAL WAVES...

A 1011 mb low is centered over the eastern Tropical Atlantic
near 13N28W, moving west at 5 kt. The low is in a very moist
area as seen on the SSMI Total Precipitable Water imagery. A 700
Mb low is also noted at the same location. Scattered showers are
within 120 nm of the center.

[Nimbus]

This wave actually cleared the SAL as far north as the Cape Verde islands so the wave train is migrating north.
Not much time before the end of July for one of these waves to develop though.

[Gustywind]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
624 AM EDT MON JUL 25 2016



A tropical wave is in the eastern Atlantic from 09N-19N with axis
near 29W, moving W at 10 kt within the last 24 hours. The wave is
associated with a 1011 mb low centered near 13N29W. Meteosat
composite imagery show Saharan dry air and dust intrusion into the
wave environment, which is hindering convection at the time.

[abajan]

A tropical wave is in the eastern Atlantic from 09N-19N with axis
near 29W, moving W at 10 kt within the last 24 hours. The wave is
associated with a 1011 mb low centered near 13N29W. Meteosat
composite imagery show Saharan dry air and dust intrusion into the
wave environment, which is hindering convection at the time.

I'm not holding out much hope for this one but the SSTs are certainly warm enough in the MDR and it won't be long before Cape Verde systems get cranking
(I think ).

[Gustywind]

Not much action with this one as the low pressure attached with it is a... weak low without deep convection . Anyway, let's hope that beneficial rains could spread on much of the Eastern Carib islands if this twave could main some convection during it treks towards us. We have to wait and see as unfavorable conditions (dry air and dust especially) continue to destroy these twaves at least... for now.



Tropical Weather Discussion
NWS National Hurricane Center Miami FL
205 PM EDT MON JUL 25 2016


...TROPICAL WAVES...

Tropical wave in the east Tropical Atlantic extends from 18N30W
through a weak 1012 mb low near 14N31W to 9N31W moving west 10
to 15 kt over the past 6 hours. Wave coincides with a well
defied 700 mb low/trough as depicted in the global models and
within a surge of moisture as seen on the SSMI Total
Precipitable Water imagery. No associated deep convection.

[Gustywind]

No mention of the previous low pressure... who has disapared for sure. Dusty and dry air conditions continues to hinder developpement.

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
754 PM EDT MON JUL 25 2016



A tropical wave prevails in the east Tropical Atlantic with axis
extending from 18N31W to 10N32W, moving west 10 to 15 kt over the
past 12 hours. The wave coincides with a well defined 700 mb
low/trough as depicted in the global models. No deep convection is
observed at this time as the wave remains in an area where Saharan
dust and dry air prevails

[Gustywind]

The low pressure is making a comeback... in a dry environnement.


000
AXNT20 KNHC 261010
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
610 AM EDT TUE JUL 26 2016


A tropical wave is in the central Atlantic from 09N-18N with axis
near 34W, moving west at 10 kt within the last 24 hours. CIRA LPW
imagery show moderate moist from the surface to 850 mb associated
with this wave and global model guidance show a low at 700 mb
coinciding with the wave axis location. The latest scatterometer
pass show that the low is now reflected at the surface with a
pressure of 1011 mb near 12N34W. Even though there is a divergent
environment at the upper levels, the presence of abundant Saharan
dry air and dust seems to hinder convection at the time.

[Gustywind]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
600 AM EDT WED JUL 27 2016

A tropical wave is in the central Atlantic from 09N-17N with axis
near 41W, moving west at 20 kt within the last 24 hours. CIRA LPW
imagery show mainly dry air from the surface to 850 mb associated
with this wave. The dry air is due to the presence of abundant
Saharan dry air and dust, which is hindering convection at the
time.

[Gustywind]

000
AXNT20 KNHC 271741 CCA
TWDAT

Tropical Weather Discussion...correction for satellite time
NWS National Hurricane Center Miami FL
205 PM EDT WED JUL 27 2016

Tropical wave in the central Tropical Atlantic extends along 42W
from 10N-18N moving west 15 to 20 kt over the past 24 hours.
Wave coincides with a weak 700 mb trough as depicted in the
global models and is embedded within a surge of moderate
moisture north of 12N as seen on the SSMI Total Precipitable
Water imagery. No associated deep convection or shower activity.

[Gustywind]

000
AXNT20 KNHC 271741 CCA
TWDAT

Tropical Weather Discussion...correction for satellite time
NWS National Hurricane Center Miami FL
205 PM EDT WED JUL 27 2016


Tropical wave in the central Tropical Atlantic extends along 42W
from 10N-18N moving west 15 to 20 kt over the past 24 hours.
Wave coincides with a weak 700 mb trough as depicted in the
global models and is embedded within a surge of moderate
moisture north of 12N as seen on the SSMI Total Precipitable
Water imagery. No associated deep convection or shower activity.

[Gustywind]

By the way, even if this twave does not seem to have a solid potential of developpement... our pro mets of Meteo-France Guadeloupe said that moderate to strong showers and tstorms should somewhat spread on us beginning Friday night till Sunday night. So, i will keep your informed if anything happens in case of.
Regards
Gustywind

[Gustywind]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
746 PM EDT WED JUL 27 2016

A tropical wave in the central Tropical Atlantic with axis that extends
from 17N44W to 10N45W, moving west 15 to 20 kt over the past 24
hours. This wave coincides with a weak 700 mb trough as depicted
in the global models. No significant convection is related to this
wave as a Saharan airmass prevails in its environment inhibiting
any activity.

[Gustywind]

Interresting discussion from San Juan NWS. Let's hope islanders in the EC that this wave could bring some decent amount of water . We will see.
Stay tuned.

000
FXCA62 TJSJ 280924
AFDSJU

Area Forecast Discussion
National Weather Service San Juan PR
524 AM AST THU JUL 28 2016


An active tropical wave...currently located in the central
Atlantic it is expected to approach the local area by Sunday. At
this time...models agreed on the timing of the wave but disagree
somewhat on the strength of the wave. The ECMWF model forecast a
stronger wave affecting the local area...compared to the GFS. The
most important thing it is that both models agreed on active
weather beginning on Sunday morning and continuing through Monday
morning. We will continue to closely monitor the evolution of this
wave next few days. Stay tuned.

[NDG]

This tropical wave is weakening and sinking to the south, per the TPW's loop, the one that will be bringing rains to the Leeward Islands this weekend including P.R. is the more powerful tropical wave just to the east of this near 35W this morning.

[Gustywind]

:uarrow: This tropical wave is weakening and sinking to the south, per the TPW's loop, the one that will be bringing rains to the Leeward Islands this weekend including P.R. is the more powerful tropical wave just to the east of this near 35W this morning.

Us we wait for some nice rains and no more and we keep our fingers crossed. Thanks for your input. Anyway, once again i will keep your informed. Stay tuned.

[Gustywind]

000
AXNT20 KNHC 291032
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
632 AM EDT FRI JUL 29 2016



A tropical wave is over western Tropical Atlantic from 15N55W to
08N55W, moving west 10 to 15 kt over the past 24 hours. This is a
fairly weak and low amplitude tropical wave with very limited
moisture. It is entering an area with fairly dry mid to upper
levels and westerly shear. If the tropical wave persists through
this area it will have little influence on the sensible weather
for the next several days as it tracks west.