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Atlantic Tropical Action 2013 - Part 2


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The best that I can tell, this is the first time through the end of September that there were no

major hurricanes without an El Nino or -AMO in the last 100 years. Just goes to show how

rare this season is turning out to be so far.

 

Years with no major hurricanes through September

 

1994...-AMO...El Nino

1986...-AMO....El Nino

1972....-AMO...El Nino

1968....-AMO...El Nino..weak

1962.....neg to neutral AMO with 1 Cat 2 through September

1946................El Nino

1940...............El Nino

1939...............El Nino

1934...............strongly - SOI

1925....-AMO....El Nino

1920.....-AMO

1914.....-AMO..El Nino

1913.....-AMO..El Nino

1912.....-AMO...-SOI

1911.....-AMO..El Nino

1910......-AMO

So maybe it means nothing.

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Theres an area of interest north of Panama with the Monsoon Trough and the models bring it north and start developing it in the bahamas, IMO this area bears watching as this would be a climatologically favored area around this time of year and seems to have favorable conditions

 

Which model?

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FIM model is pretty aggressive developing wx north of panama heading N towards Cuba/ fl.

I posted the 0Z FIM-8 for Josh in his chase thread, but until I see more than that I'm not going to use the plural of model ('models') to get weenied about a South Florida threat.  FIM-8 is generally supported by 15km FIM-9 on 0Z and 12Z runs.

 

I'll wait a few days about alternating GFS runs with a Caribbean storm in 14 or 16 days.

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from wiki:

 

All major pre-season forecasts predicted an above average season. The National Oceanic and Atmospheric Administration (NOAA) predicted an above-average to potentially hyperactive season in May; this prediction was slightly scaled down with its second forecast in early August. Other forecasting agencies forecast similar seasonal activity for the season. Official forecasts for number of named storms ranged from as low as 12 storms from the Florida State University Center for Ocean-Atmospheric Prediction Studies (FSU COAPS) to as high as 20 from the NOAA

 

The question is how did FSU come up with what looks like it will turn out to be the best number for this season??

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Should the thread be retitled from:

Atlantic Tropical Action 2013 

 

to  

 

Atlantic Tropical "Action" 2013.

 

 

Cheer up.  6Z 15 km res FIM-9 has a 30 knot tropical wave on the Northern tip of the Yucatan that is *this close* to closing a surface circulation at Hour 168.  The bad news, 30 knot SW winds at 250 mb, and one can clearly see the 500 mb center is well displaced Northwest Northeast of the nearly closed surface low.

 

But I'm a silver lining guy, and will ignore the shear and the badly tilted system, and just lock in on the almost tropical depression forecast by the 6Z FIM-9 in the Gulf.

post-138-0-05789100-1380294027_thumb.png

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:popcorn:

 

A BROAD AREA OF LOW PRESSURE IS EXPECTED TO FORM OVER THE
SOUTHWESTERN CARIBBEAN SEA DURING THE NEXT COUPLE OF DAYS...AND
CONDITIONS COULD BE CONDUCIVE FOR SOME DEVELOPMENT NEXT WEEK WHILE
THE SYSTEM MOVES TOWARD THE NORTHWESTERN CARIBBEAN SEA AND
SOUTHEASTERN GULF OF MEXICO.  THIS SYSTEM HAS A LOW CHANCE...NEAR 0
PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS
AND A LOW CHANCE...20 PERCENT...OF BECOMING A TROPICAL CYCLONE
DURING THE NEXT 5 DAYS.

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:popcorn:

 

A BROAD AREA OF LOW PRESSURE IS EXPECTED TO FORM OVER THE

SOUTHWESTERN CARIBBEAN SEA DURING THE NEXT COUPLE OF DAYS...AND

CONDITIONS COULD BE CONDUCIVE FOR SOME DEVELOPMENT NEXT WEEK WHILE

THE SYSTEM MOVES TOWARD THE NORTHWESTERN CARIBBEAN SEA AND

SOUTHEASTERN GULF OF MEXICO.  THIS SYSTEM HAS A LOW CHANCE...NEAR 0

PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS

AND A LOW CHANCE...20 PERCENT...OF BECOMING A TROPICAL CYCLONE

DURING THE NEXT 5 DAYS.

 

Agreed with the popcorn symbol.  It's climatologically in a good spot and it just gives us something to talk about!

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Important when it tries to come out of the Caribbean into the Gulf.  The 18Z GFS would have it entering the Gulf in 5 days and encountering nasty shear, while shear in the Caribbean stays favorable.  If it stays in the Caribbean an extra day or two, the Gulf would be less hostile.  If it never left the Caribbean, that would be best case for the potential Jerry, at least per the 18Z GFS 250 mb forecast..

post-138-0-25183700-1380338456_thumb.gif

post-138-0-60583100-1380338466_thumb.gif

post-138-0-71823800-1380338520_thumb.gif

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