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2021 Atlantic Hurricane Season Tracking Thread


WxWatcher007
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7 hours ago, WxWatcher007 said:

WPC has mentioned the door being open for a high risk upgrade, especially in parts of PA. That in itself is incredible. 

Western MD, WV and PA needs to pay close attention to this one. 

Still open in morning disco

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
429 AM EDT Tue Aug 31 2021
 
Day 2
Valid 12Z Wed Sep 01 2021 - 12Z Thu Sep 02 2021 

...THERE IS A MODERATE RISK OF EXCESSIVE RAINFALL EXTENDING FROM 
THE PARTS OF THE CENTRAL APPALACHIANS AND MID ATLANTIC REGION INTO 
SOUTHEAST NEW YORK AND SOUTHERN NEW ENGLAND...

...Central Appalachians/Mid-Atlantic northeast into southeast New 
York and southern New England...
Very heavy rainfall will continue to spread northeastward on 
Wednesday across portions of the central Appalachians, 
central/northern Mid-Atlantic region, and up across southeast NY 
and southern New England as the extratropical low center of Ida 
makes its way across northern VA, central/eastern MD and southern 
NJ before then heading offshore to the south of Long Island. 
Moisture and instability will continue to surge northward around 
its eastern flank and over a rather strong frontal zone draped 
across the region. Enhanced moisture convergence, strong 
frontogenetical and isentropic ascent just north of the front, and 
focused right-entrance region upper jet dynamics over the region 
will foster locally several inches of rain, including the 
potential for some areas to see 4 to 6+ inches totals from the 
WV/MD Panhandles east/northeast across south-central PA. A fairly 
broad Moderate Risk area is again highlighted to account for the 
latest forecast guidance and storm track of Ida. While a High Risk 
area may ultimately be needed, but too much uncertainty lingers to 
Ida's exact path at this point to warrant an upgrade now. 
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9 minutes ago, WxWatcher007 said:

Probably worth a separate thread for Ida remnants IMO. This is going to be a high end event for someone. 

So thread named:        Sept 1 Storms or Ida Potato wedges Obs:  Congrats Short Pump and PA, sorry NPZ

 

see what i did there?

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So I am from where this storm hit head on.

My dad worked in Port Fourchon.

I grew up in Larose. The church you see getting blown to smithereens? I went to that church a long time ago. The hospital with its roof peeling off was my local hospital.

 

No idea how my mom's house fared. The pictures out of Lafourche are terrible.

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30 minutes ago, ErinInTheSky said:

So I am from where this storm hit head on.

My dad worked in Port Fourchon.

I grew up in Larose. The church you see getting blown to smithereens? I went to that church a long time ago. The hospital with its roof peeling off was my local hospital.

 

No idea how my mom's house fared. The pictures out of Lafourche are terrible.

So sorry, Erin. 

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Larry has become a major hurricane. There are actually few hurricane seasons in the record with this many majors this early. Opposite of last year and consistent with my forecast so far.

Next possible one to watch is 91L as a weaker system. 
 

Peak Season Forecast (Actual)
Named Storms:  13 (4)
Hurricanes: 9 (2) 
Major Hurricanes: 5 (2) 

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Whenever I have time I'm going to try to do a basin update, but although things seem pretty quiet (it's hard for it not to when we go from nearly a month of direct threats to threats to Atlantic Canada lol) we're still humming along. Three areas to watch:

1) Eastern MDR Wave--Another African wave is likely to become our next named storm. The GFS has backed off on development, but the Euro remains bullish. The NHC has a 50% chance of development. It is expected to turn north rather quickly and won't be a threat to the US. 

2) Bay of Campeche--Both the GFS and Euro have hinted at some potential development in the next few days in the BoC and western Gulf. Not thinking there's a high likelihood currently of anything happening as land interaction could be too detrimental to something significant forming, but if the disturbance trends a little further east that changes things. NHC currently has development odds at 30%. The BoC tends to be an excellent place for seedlings to grow so if given a little space from land this could become more interesting. 

3) Bahamas/SE US--I've actually been watching this signal for a while now, and I think it's meaningful. I always say watch the environment, not the surface depictions on the operational guidance, and this is an example of that. If you look closely, most of the guidance has a broad disturbance developing in the Bahamas or off the SE coast in about 5-6 days. The environment looks sheared right now, but that's in large part due to a PV streamer and we know that those can change on the guidance quite a bit. The steering pattern would favor some east coast impacts, either with a ridge driving the disturbance into the SE coast like the Euro or a well timed trough pulling whatever this is north toward the NE. No odds on this one yet, but I think it's something to keep a casual eye on for now. 

From there it looks like there will be some other items on the table potentially, especially in the MDR. The MDR isn't ready to shut down yet. 

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