ATL: DOLLY - REMNANTS - Discussion

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sunnyday
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Re: ATL: INVEST 97L - Discussion

#61 Postby sunnyday » Mon Aug 25, 2014 4:25 pm

On the heels of Cristobal, I'm just going to say the famous words "fish" or "recurve." Just my opinion after seeing the models predict possible hits from Texas to Bermuda!

Please consult the NHC or NWS for accurate predictions.
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#62 Postby fci » Mon Aug 25, 2014 6:18 pm

It's fun to watch the models bounce around but until there is a LLC and it is about 3-4 days down the road, it is all Tropical Model Gymnastics that we will witness.
Pretty impressive how the NHC filtered through all the divergent model runs and pretty much nailed the forecast for Cristobal.
Fairly benign season so we all anxious await what will happen, or not.
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Re: ATL: INVEST 97L - Discussion

#63 Postby cycloneye » Mon Aug 25, 2014 6:36 pm

A tropical wave located about 1100 miles east of the Lesser Antilles
continues to produce disorganized showers and a few thunderstorms.
Environmental conditions are not expected to be favorable for
significant development during the next couple of days, but could
become more conducive by the end of the week while the system moves
westward to west-northwestward at about 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...30 percent.
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#64 Postby Gustywind » Mon Aug 25, 2014 9:28 pm

TROPICAL WEATHER DISCUSSION...AMENDED
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT MON AUG 25 2014

TROPICAL WAVE EXTENDS FROM 12N41W TO 20N42W MOVING W AT 15-20
KT. A 1010 MB LOW IS ANALYZED AT THE SOUTHERN EXTENT OF THE WAVE
AXIS THAT REMAINS EMBEDDED WITHIN THE ITCZ
AXIS WITH 850 MB
RELATIVE VORTICITY MODEL FIELDS INDICATING A MAXIMUM FROM 09N-
14N BETWEEN 37W-48W. ISOLATED MODERATE CONVECTION IS FROM 11N-
14N BETWEEN 39W-47W.
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Re:

#65 Postby meriland23 » Mon Aug 25, 2014 9:57 pm

Gustywind wrote:TROPICAL WEATHER DISCUSSION...AMENDED
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT MON AUG 25 2014

TROPICAL WAVE EXTENDS FROM 12N41W TO 20N42W MOVING W AT 15-20
KT. A 1010 MB LOW IS ANALYZED AT THE SOUTHERN EXTENT OF THE WAVE
AXIS THAT REMAINS EMBEDDED WITHIN THE ITCZ
AXIS WITH 850 MB
RELATIVE VORTICITY MODEL FIELDS INDICATING A MAXIMUM FROM 09N-
14N BETWEEN 37W-48W. ISOLATED MODERATE CONVECTION IS FROM 11N-
14N BETWEEN 39W-47W.



Forgive me, but, what is the significance of the bit that is highlighted in blue?
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#66 Postby USTropics » Mon Aug 25, 2014 11:40 pm

WV Enhanced image of 97L showing that dry air to the west:

Image
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Re: Re:

#67 Postby wyq614 » Mon Aug 25, 2014 11:51 pm

meriland23 wrote:
Gustywind wrote:TROPICAL WEATHER DISCUSSION...AMENDED
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT MON AUG 25 2014

TROPICAL WAVE EXTENDS FROM 12N41W TO 20N42W MOVING W AT 15-20
KT. A 1010 MB LOW IS ANALYZED AT THE SOUTHERN EXTENT OF THE WAVE
AXIS THAT REMAINS EMBEDDED WITHIN THE ITCZ
AXIS WITH 850 MB
RELATIVE VORTICITY MODEL FIELDS INDICATING A MAXIMUM FROM 09N-
14N BETWEEN 37W-48W. ISOLATED MODERATE CONVECTION IS FROM 11N-
14N BETWEEN 39W-47W.



Forgive me, but, what is the significance of the bit that is highlighted in blue?


I've no idea either, maybe it's because a LOW is analyzed and mentioned (for the first time)??
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Re: ATL: INVEST 97L - Discussion

#68 Postby Hurricaneman » Mon Aug 25, 2014 11:56 pm

This looks pretty decent for the enviornment its in and as it nears the islands the dry air is expected to decrease, but we also seem to have a bit of consensus that we may have a significant system so this may need to be watched for first in the Lesser Antilles and possibly the the SE US coastal areas beyond that but thats just guessing based on a couple of models

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Re: ATL: INVEST 97L - Discussion

#69 Postby USTropics » Tue Aug 26, 2014 2:25 am

Not sure if the NHC has officially deactivated 97L, but it's no longer on the NRL or CIMSS website.
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Re: ATL: INVEST 97L - Discussion

#70 Postby meriland23 » Tue Aug 26, 2014 2:36 am

:uarrow: interesting. I wonder what other people here have to say about it. NHC definitely hasn't changed yet, I'll keep a eye open for the update.
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Re: Re:

#71 Postby Gustywind » Tue Aug 26, 2014 5:34 am

wyq614 wrote:
meriland23 wrote:
Gustywind wrote:TROPICAL WEATHER DISCUSSION...AMENDED
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT MON AUG 25 2014

TROPICAL WAVE EXTENDS FROM 12N41W TO 20N42W MOVING W AT 15-20
KT. A 1010 MB LOW IS ANALYZED AT THE SOUTHERN EXTENT OF THE WAVE
AXIS THAT REMAINS EMBEDDED WITHIN THE ITCZ
AXIS WITH 850 MB
RELATIVE VORTICITY MODEL FIELDS INDICATING A MAXIMUM FROM 09N-
14N BETWEEN 37W-48W. ISOLATED MODERATE CONVECTION IS FROM 11N-
14N BETWEEN 39W-47W.



Forgive me, but, what is the significance of the bit that is highlighted in blue?


I've no idea either, maybe it's because a LOW is analyzed and mentioned (for the first time)??

That's right :)
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#72 Postby Gustywind » Tue Aug 26, 2014 5:39 am

No mention of the low pressure in the latest TWD...


TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT TUE AUG 26 2014

AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 45W/46W FROM 19N
SOUTHWARD MOVING W AT 15-20 KT. CONVECTIVE
PRECIPITATION...SCATTERED MODERATE TO STRONG FROM 12N-15N
BETWEEN 39W AND 45W.
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Re: ATL: INVEST 97L - Discussion

#73 Postby ronjon » Tue Aug 26, 2014 5:58 am

A lot more global model support this morning with GFS, CMC, and NAVGEM all developing it down the road. I doubt NHC drops it.
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Re: ATL: INVEST 97L - Discussion

#74 Postby Gustywind » Tue Aug 26, 2014 6:00 am

ronjon wrote:A lot more global model support this morning with GFS, CMC, and NAVGEM all developing it down the road. I doubt NHC drops it.

You can you post them Ronjon, we should have a better idea of 97L :)
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Re: ATL: INVEST 97L - Discussion

#75 Postby cycloneye » Tue Aug 26, 2014 6:59 am

A tropical wave located about 900 miles east of the Lesser Antilles
continues to produce disorganized showers and a few thunderstorms.
Environmental conditions are not expected to be favorable for
significant development during the next couple of days, but could
become more conducive by the end of the week or this weekend while
the system moves westward to west-northwestward at about 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.
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#76 Postby TheStormExpert » Tue Aug 26, 2014 7:33 am

More model support, yet the NHC drops the 5-day chances to 20%. Really? :roll:
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#77 Postby Gustywind » Tue Aug 26, 2014 7:38 am

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 AM EDT TUE AUG 26 2014


AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 45W/46W FROM 20N
SOUTHWARD MOVING W AT 15-20 KT. BASED ON LONG TERM SATELLITE
IMAGERY...THE WAVE WAS RE-POSITIONED IN A LOCATION IN CLOSE
PROXIMITY TO THE 26/00Z ANALYSIS. CONVECTIVE PRECIPITATION...
SCATTERED MODERATE TO ISOLATED STRONG FROM 12N-15N BETWEEN 41W
AND 48W.
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Re:

#78 Postby tropicwatch » Tue Aug 26, 2014 7:45 am

TheStormExpert wrote:More model support, yet the NHC drops the 5-day chances to 20%. Really? :roll:


They also dropped the floater image.
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Re: ATL: INVEST 97L - Discussion

#79 Postby Hurricaneman » Tue Aug 26, 2014 7:59 am

The NHC thinks and rightfully so that dry air will be a problem until the weekend but after that is when things get interesting

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#80 Postby hiflyer » Tue Aug 26, 2014 8:44 am

"The NHC thinks and rightfully so that dry air will be a problem until the weekend but after that is when things get interesting"

Looking 'upstream' appears that a couple more are lining up around the west coast of Africa with minimum dry air showing on water vapor....agree the weekend could get interesting.

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