April 2023

[Brian5671]

17 minutes ago, Snowlover11 said:

depressing weather the rest of this week, need the rain i guess.

not as much as after last weekend's 2 plus inches....

[Brian5671]

12Z CMC and GFS show 4-5 inches of rain for a good chunk of the subforum through next monday

[MJO812]

1 hour ago, Brian5671 said:

12Z CMC and GFS show 4-5 inches of rain for a good chunk of the subforum through next monday

Excellent 

[psv88]

Beautiful day today. Sunny and 60

[Brian5671]

Just had wind and a shower here...

[LongBeachSurfFreak]

2 hours ago, MJO812 said:

Excellent 

It actually is a good thing to start the growing season nice and wet after that super dry hot start.

[winterwx21]

3 hours ago, Brian5671 said:

12Z CMC and GFS show 4-5 inches of rain for a good chunk of the subforum through next monday

12z EURO showing a rainy weekend too. One batch friday night into saturday and another sunday into sunday night. 2 to 3 inches for a lot of the area between the 2 batches. 

[Stormlover74]

1 minute ago, winterwx21 said:

12z EURO showing a rainy weekend too. One batch friday night into saturday and another sunday into sunday night. 2 to 3 inches for a lot of the area between the 2 batches. 

Yep we salvage Sunday morning 

[Brian5671]

16 minutes ago, Stormlover74 said:

Yep we salvage Sunday morning 

and even that will probably be foggy and drizzle/mist with flow out of the east

[kat5hurricane]

7 hours ago, Picard said:

It was almost predictable that after hitting the 90s two weeks ago, we would settle back into a blah cool damp spring pattern for a time.  

Any chance we salvage part of Saturday before the rains begin?

Because this is normal late April weather and 90s isn't. This shouldn't be surprising to anybody.

[SnoSki14]

2 hours ago, kat5hurricane said:

Because this is normal late April weather and 90s isn't. This shouldn't be surprising to anybody.

Yeah if we were having sustained 90s throughout April then that would be an extreme problem.

The weather has been perfectly fine and mostly seasonable. We'll even avoid those chilly late April to early May rainy 40s to low 50s type days. 

[donsutherland1]

A cool pattern is underway. That pattern will likely continue through the opening week of May. There remains considerable uncertainty beyond the first week of May. Nevertheless, there are some hints that warmth could begin to return to the East while cooler weather returns to the West, as has been the case through most of the winter and spring so far.

The region could experience rain Friday night into Saturday. Afterward, a moderate to perhaps significant rainfall is possible Sunday into Monday.

April 2023 remains on a trajectory that will rank it among the 10 warmest Aprils on record in the northern Middle Atlantic region. The potential exists for some locations to challenge their warmest April on record. A cool end to the month won't be sufficient to avoid top 10 warmth.

The most recent April case to rank among the 10 warmest was:

Boston: 51.7°, 2019 (5th warmest)
Bridgeport: 54.0°, 2017 (1st warmest)
Islip: 51.9°, 2019 (6th warmest)
New Haven: 50.8°, 2022 (6th warmest)
New York City-Central Park: 57.2°, 2017 (2nd warmest)
New York City-JFK Airport: 55.1°, 2017 (2nd warmest)
New York City-LaGuardia Airport: 57.6°, 2017 (2nd warmest)
Newark: 57.2°, 2017 (4th warmest)
Philadelphia: 59.0°, 2019 (3rd warmest)
Poughkeepsie: 53.0°, 2017 (3rd warmest)
White Plains: 53.9°, 2017 (2nd warmest)

The ENSO Region 1+2 anomaly was +2.5°C and the Region 3.4 anomaly was +0.3°C for the week centered around April 19. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +2.20°C and the ENSO Region 3.4 anomaly has averaged +0.08°C. Neutral ENSO conditions will likely prevail through at least mid-spring. El Niño conditions will very likely develop during the summer.

The SOI was +5.12 today.

The preliminary Arctic Oscillation (AO) was -1.924 today.

On April 24 the MJO was in Phase 1 at an amplitude of 1.999 (RMM). The April 23-adjusted amplitude was 2.076 (RMM).

Based on sensitivity analysis applied to the latest guidance, there is an implied near 100% probability that New York City will have a warmer than normal April (1991-2020 normal). April will likely finish with a mean temperature near 58.0° (4.3° above normal). That would rank April 2023 as the warmest April on record.

 

[jm1220]

10 hours ago, Brian5671 said:

not as much as after last weekend's 2 plus inches....

Best to bank what we can now before the inevitable coastal summer drought.

[Wxoutlooksblog]

10 hours ago, Tekken_Guy said:

I’m cautiously optimistic we’ll be warm again in Week 2 of May. If we’re lucky the pattern will break by next Thursday.

I don't see any sign of it. Could the cooler than normal break for one or two days? Sure. But I think it would be for a one day shot of near normal".  I see no sign whatsoever of a ridge in the east which is necessary for prolonged above average temperatures. For that I think at the earliest late in the third week of May--17th-24th....at the earliest. At the latest second week of June.

WX/PT

[CIK62]

The last 4 days of April are averaging     54degs.(50/58) or -4.

Month to date is    58.4[+5.5].      April should end at    57.8[+4.1].

Reached 60 here at 5pm yesterday.

Today:   53-57, wind se., cloudy-drizzle, 49 tomorrow.

51*(77%RH) here at 7am.     52* at 8am.      58* at 11am.    56* at 3pm.       59* at 4pm.    Reached  62* at 5:30pm.

[SACRUS]

More clouds sticking around today that previously expected.  On way into a cloudy/wet and overall cooler than normal next 2 weeks.  Should include many rain chances and some soakers. this weekend into Mon for some real heavy rains.  Should see a moderation out of the trough and cut off low upper air pattern towards the middle of the second week of next month near May 11.

 

[ForestHillWx]

We had hail again last night; twice in the span of 4 days. I don’t remember it hailing last year in my area. Interesting.  
 

[ILoveWinter]

1 hour ago, SACRUS said:

More clouds sticking around today that previously expected.  On way into a cloudy/wet and overall cooler than normal next 2 weeks.  Should include many rain chances and some soakers. this weekend into Mon for some real heavy rains.  Should see a moderation out of the trough and cut off low upper air pattern towards the middle of the second week of next month near May 11.

 

Such a garbage pattern setting up (likely wont see the sun again until Monday afternoon!) - but they do tend to happen around this time of year so can't say its too surprising. 

[nycwinter]

what a lovely stretch of weather we have been having in nyc cool cloudy sometimes rainy cant be any more perfect.

[Brian5671]

1 minute ago, nycwinter said:

what a lovely stretch of weather we have been having in nyc cool cloudy sometimes rainy cant be any more perfect.

[Allsnow]

The last pattern lasted 4 months 

[Gravity Wave]

1 hour ago, nycwinter said:

what a lovely stretch of weather we have been having in nyc cool cloudy sometimes rainy cant be any more perfect.

It's a million times better than the subtropical garbage we're going to get in July and August.

[rclab]

3 hours ago, nycwinter said:

what a lovely stretch of weather we have been having in nyc cool cloudy sometimes rainy cant be any more perfect.

Good afternoon nycw. Sarcasm noted. Stay well, as always….

[nycwinter]

4 minutes ago, rclab said:

Good afternoon nycw. Sarcasm noted. Stay well, as always….

i was not being sarcastic i enjoy cool cloudy weather  this time of year...

[MJO812]

[rclab]

11 minutes ago, MJO812 said:

Good afternoon Anthony. I’m not versed, to any degree, on SST development/structure. Even so those isolated blue spots, such as in the Suez area, are fascinating. Stay well, as always ….

[Brian5671]

1 hour ago, MJO812 said:

That's partly why our winters have been garbage lately....torch city out there

[SACRUS]

 

Records:

 

Highs:

EWR: 94 (1990)
NYC: 92 (1915)
LGA: 89 (1990)

Lows:

EWR: 33 (1933)
NYC: 36 (1932)
LGA: 38 (1946)

Historical:

 

1898: The first Weather Bureau kite was launched in Topeka, Kansas to report daily, early morning, atmospheric observations. By year's end, 16 additional launch sites would be in operation.

1899 - A tornado struck Kirksville, MO, killing 34 persons and destroying 300 buildings. (David Ludlum)

 

1912: The April 27-28, 1912 outbreak was the climax of a wild, week-long period of severe weather that occurred in Oklahoma. Strong to violent tornadoes struck portions of central and north-central Oklahoma on April 20, 1912. Also, a violent tornado hit Ponca City, OK on April 25, 1912. From the 27 through the 28th, 16 tornadoes rated F2 or greater touched down in the state with 6 of them rated F4. About 40 people were killed, and the storms injured 120 people. 

1931 - The temperature at Pahala, located on the main island of Hawaii, soared to 100 degrees to establish a state record. (The Weather Channel)

1942 - A destructive tornado swept across Rogers County and Mayes County in Oklahoma. The tornado struck the town of Pryor killing 52 persons and causing two million dollars damage. (David Ludlum)

1987 - Forty-two cities in the western and south central U.S. reported record high temperatures for the date. The afternoon high of 87 degrees at Olympia WA was an April record, and highs of 92 degrees at Boise ID, 95 degrees at Monroe LA, and 96 degrees at Sacramento CA tied April records. (The National Weather Summary) More than 300 daily temperature records fell by the wayside during a two week long heat wave across thirty-four states in the southern and western U.S. Thirteen cities established records for the month of April. (Sandra and TI Richard Sanders - 1987)

1988 - Mount Washington NH reported seven feet of snow in ten days, pushing their snowfall total for the month past the previous record of 89.3 inches set in 1975. (The National Weather Summary)

1989 - Thunderstorms produced severe weather from the Lower and Middle Mississippi Valley to Virginia and the Carolinas. Hail up to four and a half inches in diameter caused five million dollars damage around Omaha NE. Thunderstorms spawned eleven tornadoes, and there were 160 other reports of large hail and damaging winds. (The National Weather Summary) (Storm Data)

1990 - Thunderstorms produced severe weather in eastern Texas and the Lower Mississippi Valley. Severe thunderstorms spawned thirteen tornadoes in Texas and twelve in Louisiana. A tornado southwest of Coolidge TX injured eight persons and caused more than five million dollars damage. There were also eighty-five reports of large hail and damaging winds, with baseball size hail reported at Mexia TX and Shreveport LA. (The National Weather Summary) (Storm Data) Forty-three cities in the eastern U.S. reported record high temperatures for the date. Records highs included 94 degrees at Charleston WV, 95 degrees at Baltimore MD and96 degrees at Richmond VA. (The National Weather Summary)

 

2003: For only the 11th time since records began in 1871, hail was observed in Key West Florida. A severe thunderstorm produced hail to 1.75 inches in diameter which easily broke the previous record of a half an inch in diameter which was set on May 10, 1961.

2011 - An estimated 305 tornados between the 27th and 28th sets a record for the largest outbreak ever recorded, including two EF-5s, four EF-4s and 21 EF-3s. Arkansas through Mississippi, Alabama, Georgia, southern Tennessee, Virginia to Pennsylvania and New York were all affected. An estimated 300 died including 210 in Alabama alone. This brought the April total past 600, the most in any month in recorded US weather history.

[Rtd208]

[lee59]

Cool late April day with my high only 56. Didn't really respond much to the sun coming out.