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April 2024


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1 hour ago, Brian5671 said:

55 here-hasnt really changed all day....gusty E winds have died down some

 

18 minutes ago, winterwx21 said:

Made it to 70 here. Not bad for an east winds day. Sun is out and it's a beautiful afternoon. 

 

1 hour ago, FPizz said:

74 for me now. 

16:51 in the shade the postage stamp mercury is still pretty much matching the parks 15:51 temperature of 62.1 degrees. As always …

IMG_0199.jpeg

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8 hours ago, bluewave said:

A very backdoor April with LGA having the coolest averages relative to the means due to the easterly flow off the Long Island Sound. 
 

EWR….+1.7

NYC…..+2.0

LGA…..+0.1

JFK……+1.6

ISP……+0.7

BDR…..+0.8


F733AFD7-D35B-49FF-B2E1-6BA48ED62B73.gif.a2067a467c532c52db324cbb487ecc65.gif

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Lee Goldberg pointed out that there were actually more below normal days than above normal days in April.  NYC had 17 below normal compared to 13 above, but overall the month was 2 degrees above normal because we had some big torch days. Obviously the above normal days tend to be more impressive than the below normal days. 

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20 minutes ago, winterwx21 said:

Lee Goldberg pointed out that there were actually more below normal days than above normal days in April.  NYC had 17 below normal compared to 13 above, but overall the month was 2 degrees above normal because we had some big torch days. Obviously the above normal days tend to be more impressive than the below normal days. 

The backdoor pattern prevented us from having a +4 to +5 month like areas around the Great Lakes got.


BE71176A-61BC-48D1-96FA-EEAE9028900B.thumb.png.15dd1213668abcf7b808f0b4a70a5a1a.png

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Records:

Highs:

 

EWR: 91 (1942)
NYC: 91 (1942)
LGA: 89 (1942)
JFK: 81 (2007)


Lows:

EWR: 34 (1931)
NYC: 32 (1874)
LGA: 42 (1942)
JFK: 40 (1975)

 

Historical:

 

1852 - A tornado, following the same track as the famous "Tri-state Tornado" of 1925, struck the town of New Harmony IND. Just sixteen persons were killed by the twister, due to the sparse settlement. The "Tri-state Tornado" killed 695 persons. (David Ludlum)

 

1888: 246 people died in the world's deadliest hailstorm in India. Hailstones were reportedly the size of baseballs. 1600 domesticated animals at Moradabad perished.

 

1924: A significant tornado outbreak occurred from Alabama to Virginia on the 29 through the 30th. 26 tornadoes were of F2 intensity or greater. A total of 111 people were killed, and over 1,100 injured. An estimated F4 tornado tore through Steedman and Horrell Hill, SC. This tornado killed 55 people.

1953 - A tornado 300 yards in width leveled homes on the north side of Warner-Robins GA, and barracks on the south side of the Warner-Robins Air Force Base. (The Weather Channel)

1987 - Thunderstorms developing along a cold front produced severe weather in Idaho, Utah, Wyoming and Montana. Thunderstorms produced wind gusts to 100 mph in Lincoln, Mineral and Sanders counties. Twenty-three cities in the central and southeastern U.S. reported record high temperatures for the date. Memphis TN was the hot spot in the nation with a record high of 94 degrees. (The National Weather Summary) (Storm Data)

1988 - A cold front produced high winds in the southwestern U.S. Winds gusting to 90 mph in southwestern Utah downed power lines, and damaged trees and outbuildings. The high winds also downed power lines in Nevada, completely knocking out power in the town of Henderson. (The National Weather Summary) (Storm Data)

1989 - Thunderstorms produced severe weather in central and eastern Texas. Hail three inches in diameter was reported at Cool, and thunderstorm winds gusted to 80 mph at Hillsboro. For the first time of record Oklahoma City went through the entire month of April without a single thunderstorm. (The National Weather Summary) (Storm Data) (The Weather Channel)

1990 - Late afternoon and evening thunderstorms produced severe weather in southern Virginia and the Carolinas, with tennis ball size hail reported southeast of Chesnee SC. Thunderstorms moving over the Chesapeake Bay flooded U.S. Highway 50 on Kent Island MD with several inches of water resulting in a seventeen-mile long traffic jam. (The National Weather Summary) (Storm Data)




 

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55 minutes ago, winterwx21 said:

Lee Goldberg pointed out that there were actually more below normal days than above normal days in April.  NYC had 17 below normal compared to 13 above, but overall the month was 2 degrees above normal because we had some big torch days. Obviously the above normal days tend to be more impressive than the below normal days. 

 

Largest departures

EWR: 4/25,4/26 : -7  - Negative
EWR:  4/16 :+16,   4/29: +15

#of - departure days:  12
# pf + deprture days:  17
# of 0 departure days: 1

 

NYC: 
NYC:  4/21: -8 , 4/18: -7
NYC: 4/9: +17,   4/29: +15

# of - departure days:  13
# of + departure days:  16
# of - departure days : 1
 

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Clouds broke for some sunshine today in the New York City area where the monthly mean temperature finished at 55.6° (1.9° above normal) after a high temperature of 66°. Farther south, Atlantic City and Philadelphia saw the mercury again reach the 80s. Some showers or perhaps thundershowers are possible tonight but drier weather should return tomorrow.

May should see the first week wind up somewhat warmer than normal, even as there is considerable variability in the daily temperatures. Overall, May looks to wind up on the warm side of normal.

The ENSO Region 1+2 anomaly was 0.0°C and the Region 3.4 anomaly was +0.8°C for the week centered around April 24. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.23°C and the ENSO Region 3.4 anomaly has averaged +0.98°C. The ongoing basinwide El Niño event is fading. Neutral conditions could develop later in the spring.

The SOI was -3.82 today.

The preliminary Arctic Oscillation (AO) was -1.058 today.

 

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28 minutes ago, MANDA said:

Very intense radar return right near KABE.  Must be getting pounded.

We just did get pounded.  We had a spectacular lightning storm along with a quick 0.65” of rain.  Looks like the storms are weakening some as they move into the more stable atmospheric conditions further east across NJ.

 I was also watching that hail shown above on radar.  I am certain that there was even larger sized hail with this feature up near Jim Thorpe.

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6 minutes ago, Tatamy said:

We just did get pounded.  We had a spectacular lightning storm along with a quick 0.65” of rain.  Looks like the storms are weakening some as they move into the more stable atmospheric conditions further east across NJ.

 I was also watching that hail shown above on radar.  I am certain that there was even larger sized hail with this feature up near Jim Thorpe.

I hope none of my plants got damaged.  I'm headed out to the Poconos tomorrow morning.

It's been in the 80s the last couple of days there-- you guys who like storms so much-- you need this kind of heat to get big storms.

 

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29 minutes ago, donsutherland1 said:

Clouds broke for some sunshine today in the New York City area where the monthly mean temperature finished at 55.7° (2.0° above normal) after a high temperature of 66°. Farther south, Atlantic City and Philadelphia saw the mercury again reach the 80s. Some showers or perhaps thundershowers are possible tonight but drier weather should return tomorrow.

May should see the first week wind up somewhat warmer than normal, even as there is considerable variability in the daily temperatures. Overall, May looks to wind up on the warm side of normal.

The ENSO Region 1+2 anomaly was 0.0°C and the Region 3.4 anomaly was +0.8°C for the week centered around April 24. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.23°C and the ENSO Region 3.4 anomaly has averaged +0.98°C. The ongoing basinwide El Niño event is fading. Neutral conditions could develop later in the spring.

The SOI was -3.82 today.

The preliminary Arctic Oscillation (AO) was -1.058 today.

 

Don what's causing all this variability? Is the SE Ridge not strong enough to take over?

 

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11 hours ago, LibertyBell said:

Don what's causing all this variability? Is the SE Ridge not strong enough to take over?

 

We're still in the seasonal transition. Variability is often higher at this time of year. Blocking has continued to occur. But when the warmth arises, it overperforms.

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I'm noticing almost kind of a jump on the maps from April into May. We seem to be quickly jumping into a much warmer possibly eventually hot summer pattern. Temperatures were modeled to be in the mid-upper 60s here for today and we're going to top out somewhere between 78-83. There is a southeast wind but it's very light and the temperatures have warmed quickly up until now with no clouds. By a week from now we could be at least flirting with 90. Both GFS and CMC show this. Bermuda HP trying to take shape as the nw Atlantic upper low gradually loses its grip.

WX/PTgfs_z500_mslp_us_32.png

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