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8/18/2017 Heavy Rain, Flooding & Severe Storm Observations


Rtd208

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21 minutes ago, Paragon said:

Typically our tornadic events come with early morning warm front passages.

Yeah, they mostly involve warm fronts with the exception of Labor Day 1998. I don't think any of our tornadoes since 2000 occurred during a formal tornado watch.

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Just now, bluewave said:

Yeah, they mostly involve warm fronts with the exception of Labor Day 1998. I don't think any of our tornadoes since 2000 occurred during a formal tornado watch.

Wasn't there another event in 1998, back in May I think?  Around Memorial Day?

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3 minutes ago, bluewave said:

Interesting that we had severe weather events near both Memorial Day and Labor Day that year.  Personally I feel that the Labor Day outbreak was superior.  Last time we had anything like that was back in October 1989 I think it was with all the funnel clouds reported and the school wall collapse.

We had some big severe weather events in 2010 too, but obviously not high risk days.

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2 minutes ago, Paragon said:

Interesting that we had severe weather events near both Memorial Day and Labor Day that year.  Personally I feel that the Labor Day outbreak was superior.  Last time we had anything like that was back in October 1989 I think it was with all the funnel clouds reported and the school wall collapse.

We had some big severe weather events in 2010 too, but obviously not high risk days.

Labor Day 98 was still the only time that I ever verified wind damage to trees and 3/4 hail in Long Beach.

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3 minutes ago, bluewave said:

In Long Beach it was. But the close to 3" hailer on 08-01-11 was the record for Nassau.

I don't think that was in SW Nassau I don't remember it lol.  It would be nice to have to shovel hail one day and to have the plows out for it, like what happened in NJ a few years back.

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2 minutes ago, Paragon said:

I don't think that was in SW Nassau I don't remember it lol.  It would be nice to have to shovel hail one day and to have the plows out for it, like what happened in NJ a few years back.

New Hyde Park.

0430 PM     HAIL             NEW HYDE PARK           40.73N  73.69W
08/01/2011  M3.00 INCH       NASSAU             NY   TRAINED SPOTTER 

            SPOTTER MEASURED HAIL AT 3.0 INCHES. CAR WINDSHIELD 
            SHATTERED ON DURHAM ROAD. 
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28 minutes ago, Paragon said:

Was that the largest hail our area has ever received?

I remember a couple of significant hail events in Oceanside in the 70's and one in North Merrick that took out a couple of windows at the camp I went to. I remember one of them being enough that I shoveled the driveway just because I could and doing it in shorts and sandals was kind of unique. 

 

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Upton must have read my post from earlier because they decided to hoist a Flash Flood Watch

Flood Watch
National Weather Service New York NY
106 PM EDT Fri Aug 18 2017

...Heavy Showers and Thunderstorms through Early Tonight...

.As a cold front moves slowly east toward the area, narrow bands of
heavy showers and thunderstorms will move northeast across the area.

CTZ009-NJZ002-004-006-103>108-NYZ069>075-176>179-190300-
/O.NEW.KOKX.FF.A.0005.170818T1706Z-170819T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Fairfield-Western Passaic-Eastern Passaic-Hudson-
Western Bergen-Eastern Bergen-Western Essex-Eastern Essex-
Western Union-Eastern Union-Rockland-Northern Westchester-
Southern Westchester-New York (Manhattan)-Bronx-
Richmond (Staten Island)-Kings (Brooklyn)-Northern Queens-
Northern Nassau-Southern Queens-Southern Nassau-
106 PM EDT Fri Aug 18 2017

...FLASH FLOOD WATCH IN EFFECT UNTIL 11 PM EDT THIS EVENING...

The National Weather Service in Upton has issued a

* Flash Flood Watch for portions of southern Connecticut,
  northeast New Jersey, and southeast New York, including the
  following areas, in southern Connecticut, Southern Fairfield.
  In northeast New Jersey, Eastern Bergen, Eastern Essex,
  Eastern Passaic, Eastern Union, Hudson, Western Bergen,
  Western Essex, Western Passaic, and Western Union. In
  southeast New York, Bronx, Kings (Brooklyn), New York
  (Manhattan), Northern Nassau, Northern Queens, Northern
  Westchester, Richmond (Staten Island), Rockland, Southern
  Nassau, Southern Queens, and Southern Westchester.

* Until 11 PM EDT this evening

* Narrow bands of heavy showers could produce rainfall rates from
  1 to 3 inches per hour as they move across the same area. With
  wet antecedent conditions, flash flooding is possible.

* There is a chance for widespread life threatening flooding of
  small rivers, streams, brooks, and urban areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.

&&

$$
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5 minutes ago, NJwx85 said:

The golf ball sized hail that I had back on 5/31/17 is the largest I've ever seen in person. Not sure if it's a coincidence or not but the number of hail events seems to have increased here substantially in the last ten years. 

I think so too.  NJ has had a number of shovelable/plowable events in recent years.

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8 minutes ago, gravitylover said:

I remember a couple of significant hail events in Oceanside in the 70's and one in North Merrick that took out a couple of windows at the camp I went to. I remember one of them being enough that I shoveled the driveway just because I could and doing it in shorts and sandals was kind of unique. 

 

I went away on summer vacation one year and when I came back and went through the mail I saw we had received our community newspaper and there were big blaring headlines about a car dealership losing half their cars because of large hail.  I regretted not being there to see how big the hail was- this was back in the early or mid 90s.

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