Jump to content
  • Member Statistics

    17,606
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Atlantic Tropical Action 2011 - Part III


Recommended Posts

  • Replies 1k
  • Created
  • Last Reply

I wouldn't be too surprised if this gets lemoned in the next couple TWOs as well. Convection looks pretty good, and GFS likes it, so I'd say there's at least a chance of development.

That said, CIMSS still indicating ~ 15-25 kts shear complements a pesky upper low to its northwest: http://tropic.ssec.w...shr&zoom=&time= You can see this feature spinning quite nicely in the WV loop: http://www.ssd.noaa....tl/loop-wv.html and I say upper low due to the very evident 200 mb vort max from CIMSS: http://tropic.ssec.w...or1&zoom=&time=

Not to mention that if something does develop, it's heading W (maybe WNW) fast, so what little time it has may be limited. Nonetheless something else interesting to keep an eye on.

post-378-0-81032800-1311917167.jpg

Link to comment
Share on other sites

post-378-0-83719900-1311918877.gif

1. A LARGE TROPICAL WAVE ACCOMPANIED BY A WELL-DEFINED LOW PRESSURE SYSTEM IS LOCATED ABOUT 1200 MILES EAST-SOUTHEAST OF THE LESSER ANTILLES. THIS DISTURBANCE IS SHOWING SIGNS OF ORGANIZATION...AND ENVIRONMENTAL CONDITIONS ARE CONDUCIVE FOR GRADUAL DEVELOPMENT OVER THE NEXT FEW DAYS. THIS SYSTEM HAS A MEDIUM CHANCE...30 PERCENT... OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD OR WEST-NORTHWESTWARD AT 15 TO 20 MPH.

Link to comment
Share on other sites

post-378-0-83719900-1311918877.gif

1. A LARGE TROPICAL WAVE ACCOMPANIED BY A WELL-DEFINED LOW PRESSURE SYSTEM IS LOCATED ABOUT 1200 MILES EAST-SOUTHEAST OF THE LESSER ANTILLES. THIS DISTURBANCE IS SHOWING SIGNS OF ORGANIZATION...AND ENVIRONMENTAL CONDITIONS ARE CONDUCIVE FOR GRADUAL DEVELOPMENT OVER THE NEXT FEW DAYS. THIS SYSTEM HAS A MEDIUM CHANCE...30 PERCENT... OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD OR WEST-NORTHWESTWARD AT 15 TO 20 MPH.

Yep-- folks have been talking about it in the Invest 91L thread. The models are going nutty with it, but of course all those islands are in the way. Grrr.

Link to comment
Share on other sites

With weak upper level western Atlantic troughing, the -NAO, and the lack of a western Atlantic surface high, it appears to me that the U.S. east coast is for the most part protected from a direct hit until at least 8/10. However, that can all easily change for the much more active (climowise) last half of the month. So, I'm not at all rainstorming here.

Link to comment
Share on other sites

I think the TPC ir erroring by giving that disturbed area near Central America a 0% of developing. Looks good to me even if it will go into land. I would give it a 10-20% chance not 0!

Doesn't look very good to me on vis satellite. The complex nearing the west African coast looks nice...as does AL91...which should be spinning pretty soon from what I can tell.

Link to comment
Share on other sites

I'm feeling very optimistic (well, not pessimistic) on this being the year for an East Coast hurricane, despite current worries. September is the big season (1938 was on/near the Equinox), the pattern changes, the number of deep troughs in the heisphere may change, the troughs are deeper, we might get negative tilts,

Things have to line up well, no brainer that it is a decade or more between significant storms, but it appears one key ingredient, a fair amount of storms, so one might be in the right place when conditions are right. Future Emily probably forms too far West to be technically a Cape Verde storm, but it appears the season is starting early.

I'm in a good mood this morning. No babysitting, so a quiet early evening, good night sleep, wife heard storm at 5 am, almost two tenths for the lawn, and oh yeah, I think I know where 92L is coming from...

irnm7.GIF

Link to comment
Share on other sites

That wave is beastly.

avn-l.jpg

I mnetioned this once already somewhere, but if that is 92L in the making, and Joe Bastardi's old rule about the NW Pacific and teleconnections in the Atlantic about 10 days later works, and the Bonin high rebuilds as expcted to curve Muifa back towards Asia as shown on the Euro, then the Bermuda high could build in mid-month and bend it back towards the East Coast. Don't know if JB is touting that line, I don't subscribe to WeatherBell.

Link to comment
Share on other sites

Thoughts and observations-

complaints about lack of hurricanes so far. IIRC, NHC's climatology shows today as the average first day for an Atlantic hurricane. So we'll be slipping slightly behind average. But we're a couple of storms ahead of climatology.

I remember with Claudette, a late July storm, the Eastern Caribbean is generally not a favorable place this early in the season.

I'll remind you of Muifa, and what Joe Bastardi used to say about ~10 day teleconnection between the Bonin High and the Bermuda High, which would suggest an East Coast landfall would be possible in about two weeks.

And speaking of in about 2 weeks, the NAO may be going neutral...

post-138-0-95244700-1312303640.gif

post-138-0-95373100-1312303651.jpg

post-138-0-78102000-1312303666.gif

Link to comment
Share on other sites

CSU Tropical Update for August is out...

The ENSO-related warming trend in the tropical Pacific has abated, and we are reasonably confident that we will have near-neutral conditions for the remainder of this year’s hurricane season. The combination of the neutral tropical Pacific along with continued warm sea surface temperature anomalies and unusually low sea level pressure anomalies in the tropical Atlantic will likely lead to a very active Atlantic basin hurricane season.

We are also now issuing a separate hurricane forecast for activity in the Caribbean Basin. This forecast is based on a statistical prediction scheme that utilizes 60 years of past data. This model is also predicting a very active season for the Caribbean.

http://hurricane.atm...011/aug2011.pdf

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...