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2018 Mid-Atlantic General Severe Discussion


Kmlwx

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1 minute ago, RDM said:

New cells just popped over Leesburg and MOCO.  Looks like the srn edge of the line jumped south and is reforming along the Potomac

Hope so. Returns have dropped off quite a bit so hopefully that means the new line won't be as strong.

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8 minutes ago, mattie g said:

I’m dubious, that’s all.

Mrs. J said she saw quarter-sized hail. I certainly believe her.

There was a pretty intense hail core over me and when it moved East it intensified. So there certainly may have been larger than the quarter size I saw. All I can say is that the Weinberg Center for the Arts is the theater downtown with a very high ceiling. You could hear the hail on the roof it was that loud. And it was during a dance going on so the music was loud. 

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5 minutes ago, jbakerman said:

For those in FFX, there's water running across Guinea between Braeburn and Braddock in two different spots. I was able to drive over it (didn't see it, not a fun surprise). Was worst around the Long Branch stream.

Burke Road and Heritage Square Drive also flooded

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Anyone ever seen anything like this??


From WBOC Chief Meteorologist Dan Satterfield:
METEO TSUNAMI UNDERWAY ALONG DE COAST

VERY rare event underway along the coast:
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Including the cities of Rehoboth Beach, Sandy Hook, Ocean City, Atlantic City, and Long Beach Island
854 PM EDT Tue May 15 2018

...Abnormal ocean water surges are expected along the oceanfront, inlets, and back bays through the overnight hours...

Air pressure sensor and tidal gage readings in and near the
coastal waters indicate that a weather-generated tsunami has been triggered by the line of thunderstorms as it moved over the ocean.

Impacts are expected along the oceanfront, inlets, and back bays from Perth Amboy New Jersey to Fenwick Island Delaware.

Water level fluctuations of several inches to one foot above
normal astronomical tide in localized areas can be expected along the oceanfront, inlets, and back bays for the next several hours as a series of surges make their way to the coast.

The duration of this event is uncertain, though similar events
have lasted from several hours to one day. It is not recommended to return to the water until at least Wednesday morning.

The strong currents associated with these surges could pose a
danger to those in or near the water.

Recommended actions are listed below...

Boat Owners...
Prepare now for the following hazards...
* Strong, unpredictable currents
* Surging up to one foot above normal sea level

Swimmers...Surfers...and Boaters
It is recommended you leave the beach now to avoid the following
hazards...
* Strong currents
* Potentially dangerous surges of water.

This kind of tsunami is generated by abrupt changes of atmospheric pressure in the causative storm system, which is a line of thunderstorms that moved over the ocean in this case. The combination of the air pressure effect on the ocean surface and the speed at which the pressure disturbance travels can generate tsunami like waves in certain situations. The National Tsunami Warning Center is monitoring this event.

Sent from my SM-G892A using Tapatalk

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Special Weather Statement
National Weather Service Mount Holly NJ
854 PM EDT Tue May 15 2018

DEZ004-NJZ014-024>026-161200-
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Coastal Atlantic-Coastal Ocean-
Including the cities of Rehoboth Beach, Sandy Hook, Ocean City,
Atlantic City, and Long Beach Island
854 PM EDT Tue May 15 2018

...Abnormal ocean water surges are expected along the oceanfront,
inlets, and back bays through the overnight hours...

Air pressure sensor and tidal gage readings in and near the
coastal waters indicate that a weather-generated tsunami has been
triggered by the line of thunderstorms as it moved over the ocean.

Impacts are expected along the oceanfront, inlets, and back bays
from Perth Amboy New Jersey to Fenwick Island Delaware.

Water level fluctuations of several inches to one foot above
normal astronomical tide in localized areas can be expected along
the oceanfront, inlets, and back bays for the next several hours
as a series of surges make their way to the coast.

The duration of this event is uncertain, though similar events
have lasted from several hours to one day. It is not recommended
to return to the water until at least Wednesday morning.

The strong currents associated with these surges could pose a
danger to those in or near the water.

Recommended actions are listed below...

Boat Owners...
 Prepare now for the following hazards...
  * Strong, unpredictable currents
  * Surging up to one foot above normal sea level

Swimmers...Surfers...and Boaters
 It is recommended you leave the beach now to avoid the following
 hazards...
  * Strong currents
  * Potentially dangerous surges of water.

This kind of tsunami is generated by abrupt changes of atmospheric
pressure in the causative storm system, which is a line of
thunderstorms that moved over the ocean in this case. The
combination of the air pressure effect on the ocean surface and
the speed at which the pressure disturbance travels can generate
tsunami like waves in certain situations. The National Tsunami
Warning Center is monitoring this event.

Additonal statements will be issued if necessary through National
Weather Service Office Forecast Office in Mount Holly, NJ.
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Weather-generated tsunami... WTF?

Finally got some rain.  Just got a 20-minute downpour.  Probably around .70, but not going out to check the gage.  Far cry from just about every other location on the eastern seaboard.  I mean, ****, some people had storms strong enough to cause a ****ing tsunami.  I barely got enough to water my grass for one day, but at least it was enough to beat back some more pollen.

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1 minute ago, EastCoast NPZ said:

Weather-generated tsunami... WTF?

Finally got some rain.  Just got a 20-minute downpour.  Probably around .70, but not going out to check the gage.  Far cry from just about every other location on the eastern seaboard.  I mean, ****, some people had storms strong enough to cause a ****ing tsunami.  I barely got enough to water my grass for one day, but at least it was enough to beat back some more pollen.

I will gladly give you some of what we got. It is bad over here. Really bad. Swift water rescues major highways shut down, 340W and 70E and 15S just north of Frederick. 

https://www.wusa9.com/article/news/local/maryland/swift-water-rescues-across-frederick-co-after-severe-flooding/65-552445714

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4 minutes ago, Mrs.J said:

I will gladly give you some of what we got. It is bad over here. Really bad. Swift water rescues major highways shut down, 340W and 70E and 15S just north of Frederick. 

https://www.wusa9.com/article/news/local/maryland/swift-water-rescues-across-frederick-co-after-severe-flooding/65-552445714

I've been following.  It's been crazy up your way.  Hope it stays south of you for the rest of the night.  Stay safe.

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