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Remnants of T.S. Andrea to Impact the NE - Flood Threat!


moneypitmike

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Actually the winds at the buoys were 50 knots plus, so while at sea it verified.

Andrea thread says it all, this thing got ripped apart this afternoon, gfs did well showing the shear.....I actually think it will be a more potent storm starting tomorrow midday on over and off the mid atlantic with some good baroclinic forcing.  

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Andrea thread says it all, this thing got ripped apart this afternoon, gfs did well showing the shear.....I actually think it will be a more potent storm starting tomorrow midday on over and off the mid atlantic with some good baroclinic forcing.

Totally agree as an extratropical winter type storm with interaction of cold air it's going to be a deluge. CC might get hammered with a period of banded winds too.
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The second highest crest in the Farmingtons history occurred from Irene, which river is near you?http://water.weather.gov/ahps2/river.php?wfo=box&wfoid=18682&riverid=203852&pt%5B%5D=all&allpoints=141186%2C144360%2C143707&data%5B%5D=crests

 

Farmington comes right through Collinsville. You can't really use the Farmington as a flooding gauge anymore, the dams built after 1955 took care of that. You have to go by small streams and brooks. Oct 2005 was by far the worst I've ever seen in that regard.

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Was just looking at the forecast for Woodstock, CT.... tomorrow night is the biggie, lol.

 

  • Tonight Rain. Low around 55. Southeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
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  • Friday Rain. Patchy fog. High near 61. Northeast wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
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  • Friday Night Rain. The rain could be heavy at times. Patchy fog. Low around 56. Northeast wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
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  • Saturday A chance of showers. Cloudy, with a high near 72. North wind 8 to 10 mph becoming west in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.
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  • Saturday Night A chance of showers, mainly before 3am. Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 55. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
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You're essentially getting at like a 4-7" QPF event. Seems hard to get in a winter/cold airmass...I guess it would have to be some ridiculous overrunning solution leading up to a whopper of a coastal storm. We've all seen what like 3"+ QPF can do (like last Feb in CT, or April Fools)...but I'm not sure how you take QPF one notch higher. In fact, didn't April Fools 97 have some 5" QPF amounts?

Closest I can think of to 60"+ amounts is the Feb 2010 ordeal in the Catskills of NY where towns picked up 4-7 feet of snow in 5 days (two storms).

The conversation started as a what if:   Suppose in late November, a -2 SD cold load into NW NE took place, at the same time what is initially unrelated, an eastern Gulf late seasom TC lift N up the Coast. 

 

It's not a huge leap to see that happen in mind's eye. It just hasn't (yet) in reality.   Obviously the standard deviation would argue that is exceedingly rare ... in fact, it hasn't happened.  Sandy came damn close actually.  

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The conversation started as a what if: Suppose in late November, a -2 SD cold load into NW NE took place, at the same time what is initially unrelated, an eastern Gulf late seasom TC lift N up the Coast.

It's not a huge leap to see that happen in mind's eye. It just hasn't (yet) in reality. Obviously the standard deviation would argue that is exceedingly rare ... in fact, it hasn't happened. Sandy came damn close actually.

Hurricane Wilma, or by this latitude a tropical depression, in Oct 2005 came close in the Green Mountains. That storm coupled with cold air to bring the Greens several feet of snow. I remember skiing natural snow terrain at Killington after Wilma and Killington had a ton of trails open.

That may have been close, but I agree what you AE saying hasn't happened at least in populated areas or closer to the coastal plain at least. It would be quite the sight to watch areas snow at 1/2" QPF falling in the bucket each hour.

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The GFS really has incredible moisture flux at 925 and 850. That makes me nervous for uber heavy rain in a short period later tomorrow and tomorrow evening.

Scott, can we add ur pic to the sultan signal w ginxy. In all seriousness, i have a question my gf is concernd about basement flooding and she keeps talkin about some mothers day flooding (after like a week or more of hvy rains) from like 7-8 yrs ago or so. Said there was 10 inches of water downstairs. Are u familiar w any big rainy week where big flooding occurs in that time frame or maybe someone else knows

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Basemant flooding depends on so many things....If that was the only time she had flooding...I'd say she is good to go. This isn't meant for people to sand bag...it's just that some areas may get creamed in a short period with heavy rain.

she has had flooding in march 2010, and a time or two during like 3 inch rains in like 2 hrs of training storms, thou the 3 inch rains were just a little water, the prior two i think the water came up from the ground/water table not sure. Anyway hoping for 10 plus :)
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