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4/21 Slight Risk Thunderstorm Obs


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Decided to take a walk while it was still sunny beforehand, and I ended getting a nice shelf cloud out of it 🙂

Rain has commenced. 

Not a bad look. 

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1 hour ago, SouthernNJ said:

Small, intense wind signature near McGuire and Fort Dix on TPHL.  Would have been nice to see

what KDIX would have shown with it.

Move that due east and it would be in the vicinity of the Toms River damage...

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2 hours ago, anowal01 said:

Multiple trees on houses...defintely some type of weather event...I hadn't looked at models for this close enough today, possibly some type of rotation event?

Velocity scan in that area was picking up 60mph winds. So some wind damage not suprising

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Lots of hail reports which I figured there would be with the low freezing level. Jersey and southern DE winners for high winds. handful of 50-60 mph winds in NJ which I believe was all from the same storm that swung through philly with that 59mph wind gust. Even a 76 mph one near manasquan, nj

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3 hours ago, tombo82685 said:

Velocity scan in that area was picking up 60mph winds. So some wind damage not suprising

This seemed more than some generic t-storm wind damage based on the response from first responders on the ground.  The highly localized nature of it...all within a few blocks, also suggests more than generic t-storm wind.  Strong microburst would fit the bill I suspect. Local police thinking tornado, will see what NWS comes up with -

NJ weather: Toms River police report tornado touched down in East Dover

NWS confirms waterspout in the vicinity according to the below -

Waterspout funnel cloud spotted above N.J. Shore town during storms

 

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6 hours ago, SouthernNJ said:

TPHL showed a small area of more intense winds move directly over the airport, and the

measured gust (59 MPH) supported that.  It continued into National Park, Westville,

Gloucester City and Bellmawr.  Will be looking for some trees down in that corridor.

Pretty much just as TPHL showed, the LSR matches the velocity data:

0210 PM     TSTM WND DMG     HADDONFIELD             39.90N 75.03W
04/21/2020                   CAMDEN             NJ   UTILITY COMPANY  
 
             A SWATH OF WIND DAMAGE WAS REPORTED FROM 
             BROOKLAWN TO EAST OF HADDONFIELD. NUMEROUS 
             POWER OUTAGES IN THE AREA, WITH SEVERAL 
             TREES AND POWER LINES DOWNED. TIME ESTIMATED 
             FROM RADAR.
6 hours ago, SouthernNJ said:

Small, intense wind signature near McGuire and Fort Dix on TPHL.  Would have been nice to see

what KDIX would have shown with it.

This was also about right, as it went just SE of the base.  Really unfortunate timing 
with KDIX here because it would've had a good angle on the Toms River damage as well.

0236 PM     TSTM WND DMG     PEMBERTON               39.97N 74.68W
04/21/2020                   BURLINGTON         NJ   UTILITY COMPANY  
 
             SEVERAL REPORTS OF TREES AND POWER LINES 
             DOWN BETWEEN PEMBERTON AND BROWNS MILLS. 
             TIME ESTIMATED FROM RADAR.
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Going to try to figure out how to post images more often, to better illustrate what I'm seeing.  I found this from

the JFK TDWR at 3:11 PM.  It may explain why so many waterspouts and possible tornadoes are being talked

about along the shore tonight, with a few being on video.

 

Couplets.png.33f9fd506cf9307ec2a3d1f14c0e38c2.png

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Based on radar and video, would not be surprised if a couple of weak tornadoes occurred yesterday along the

coast.  Mystic Island had a waterspout filmed, and structural damage reported in the area.  Howell-Brick-Manasquan

had a number of damage reports and a funnel filmed in the area with JFK TDWR showing a circulation, and

NE Toms River had a weak tornado/gustnado filmed traveling down a street.  Will be interesting to see what

Mount Holly says the phenomena were.  The damage in Toms River looked like it was focused in the same

direction when viewed from above, which leads me to guess perhaps the ground circulation was a gustnado

more than a tornado, but ultimately it is up to them to decide.

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NWS says EF0 confirmed Normany Beach


PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 PM EDT THU APR 23 2020

...NWS DAMAGE SURVEY FOR 04/21/20 TORNADO EVENT...

.NORMANDY BEACH NJ TORNADO...

START LOCATION...NORMANDY BEACH IN OCEAN COUNTY, NJ
END LOCATION...NORMANDY BEACH IN OCEAN COUNTY, NJ
DATE...APRIL 21 2020
ESTIMATED TIME...3:05 PM EDT
MAXIMUM EF-SCALE RATING...EF0
ESTIMATED MAXIMUM WIND SPEED...70 MPH
MAXIMUM PATH WIDTH...20 YARDS
PATH LENGTH...0.4 MILES
BEGINNING LAT/LON...40.0003/-74.0667
ENDING LAT/LON...39.9986/-74.0585
* FATALITIES...0
* INJURIES...0

...SUMMARY...
A WATERSPOUT FORMED OVER BARNEGAT BAY BETWEEN SILVER BAY 
AND KETTLE CREEK, THEN MOVED ASHORE AT THE NORMANDY BEACH YACHT CLUB.
SEVERAL BOATS AND ASSOCIATED TRAILERS WERE TOSSED AND FLIPPED, WITH 
MINOR DAMAGE BEING REPORTED TO AT LEAST ONE HOME ON SOUTH COURT.
THIS WEAK TORNADO MAY HAVE LIFTED AS IT PROCEEDED EAST ACROSS
ROUTE 35, AND APPROACHED THE COAST JUST NORTH OF NORMANDY SHORES 
BEACH CLUB. THE TORNADO THEN BECAME A WATERSPOUT AS IT EMERGED
OVER THE COASTAL WATERS, CAUSING LITTLE OR NO ADDITIONAL DAMAGE.

 
     
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