May 2025

[Brian5671]

Waterlogged here after all night showers/downpours with more incoming-going to be one wet week if the Friday event verifies

[STORMANLI]

Storm Total

2.13"

[FPizz]

54 minutes ago, winterwarlock said:

.62 4 day total

Worked yesterday but debating about today. Looks mainly dry after some morning  drizzle for me

only .26" grand total here

[SACRUS]

 

62 / 62 cloudy with areas of rain and showers.  More of the same today and perhaps some breaks in the clouds later today and more sun tomorrow between systems.   Next trough comes down and cuts off Thu PM - Sat AM with another round of rain and for some more than this current cutoff.  Drier and but perhaps some lingering clouds Saturday before clearing out and warming up for a great Mothers day.  Period 5/12 - 5/15 looks near normal with pattern of cutoffs perhaps making it an extended presence into the eastern 1/3 of the country.  No sustained warmup or cooldown through the mid way mark of the month.  Perhaps more ridging into the 20th.

 

[SACRUS]

 

 

Records:

Highs:

EWR: 93 (1949)
NYC: 92 (1986)
LGA: 93 (1949)
JFK: 88 (1986)


Lows:

EWR: 40 (1967)
NYC: 32 (1891)
LGA: 41 (1967)
JFK: 37 (1992)

 

Historical:

 

1876: A tornado, estimated at F3 intensity, tracked four miles across Chicago, Illinois. The damaged buildings included a candy factory, a hospital, a freight depot, and a church. The tornado moved out over Lake Michigan and was observed to have multiple vortices by a reporter. Further south in Illinois, a tornado blew a moving passenger train off the tracks near Neoga, injuring all 19 people aboard. 

 

1911 : Record Minimum temperature for Washington, DC for the date is 37 °F.

 

1917: Amarillo, TX had its latest snowfall on record with 9.1 inches falling.

1933 - Charleston, SC, was deluged with 10.57 inches of rain, an all- time 24 hour record for that location. (The Weather Channel)

1937: The German passenger airship LZ 129 Hindenburg caught fire and was destroyed during its attempt to dock with its mooring mast at Naval Air Station Lakehurst in Manchester Township, New Jersey, United States. Of the 97 people on board (36 passengers and 61 crewmen), there were 35 fatalities (13 passengers and 22 crewmen). One worker on the ground was also killed, making a total of 36 deaths. The Hindenburg was delayed two hours from docking due to thunderstorms in the area.

1975 - A massive tornado hit Omaha, NE, killing three persons, injuring 133 others, and causing 150 million dollars damage. The tornado struck during the late afternoon moving northeastward through the industrial and residential areas of west central Omaha, and lifting over the northern section of the city. The twister, which cut a swath ten miles long and as much as a quarter of a mile wide, was the mostly costly in U.S. history up til that time. (David Ludlum)

1987 - Eighteen cities in California and Oregon reported record high temperatures for the date. Highs of 91 degrees at Portland OR, 101 degrees at Medford OR, and 104 degrees at Sacramento CA, were the warmest of record for so early in the season. (The National Weather Summary)

1988 - A major storm brought high winds to the western half of the country. A wind gust of 74 mph at Pueblo CO broke their May record established just four days earlier, and winds in the Arapahoe Ski Basin area of Colorado reached 85 mph. In North Dakota, the high winds reduced visibilities to near zero in blowing dust closing many roads. (The National Weather Summary) (Storm Data)

1989 - Sixteen cities in the north central U.S. reported record low temperatures for the date. Morning lows of 17 at Bismarck ND and 26 at Minneapolis MN were the coldest of record for so late in the season. A reading of 43 degrees at the start of the Kentucky Derby was the coldest in 115 years of records. Light snow was reported in the Upper Midwest, with an inch reported at Chicago IL. (The National Weather Summary)

1990 - Snow and high winds prevailed behind a Pacific cold front crossing the northwestern U.S. Wind gusts above 50 mph were reported in southeastern Idaho, and heavy snow blanketed the Cascade Mountains of Washington State, with twelve inches reported at Stampede Pass. (The National Weather Summary)

[SACRUS]

 

Euro still not updating into EWALL but similar with cutoff underneath the ridging potential next week.

 

 

[SACRUS]

 

Lots of flooding potential into the South

 

[LibertyBell]

31 minutes ago, Brian5671 said:

Waterlogged here after all night showers/downpours with more incoming-going to be one wet week if the Friday event verifies

we're going to have so much mold and fungus from this

[LibertyBell]

10 hours ago, LongBeachSurfFreak said:

Steady moderate rain again in SW Nassua, rare for this to be the jackpot area. But it seems to just want to train here today. I’ll take it, my veggies are pretty stoked. 

I let the pros grow veggies (read I buy them from organic grocery stores), but I do grow flowers and mine look like pancakes from this excessive rainfall.

The first thing I would do with weather modification is put an end to cutoff lows.  Showers and Tstorms that come at night after a sunny hot day are fine, not days and days of this Ireland weather crap.

I'd like to know why cutoff lows are on the increase and especially in May, when they never used to happen this late in the season back in the 80s and 90s.

 

[Stormlover74]

Downpour now. Won't last long but it's all adding up

[sussexcountyobs]

1.3" since Saturday. 

[wdrag]

Good Tuesday morning...  CoCoRaHs maps attached and NYS MESONET.  Depending on how extensive there SVR storm rainfall this afternoon I95 northwestward,  I expect much of what was outlooked last week for qpf to verify. 

Next one Thu night-Friday might need a thread due to antecedent conditions.  Still waiting a day to see what this afternoon-evening yields.

Click for clarity if you're interested. Heading for spot 8" in the far northern part of the forum.  

[winterwx21]

1 hour ago, Stormlover74 said:

Downpour now. Won't last long but it's all adding up

Up to 0.75" for the entire event here. Our area hasn't done great, but at least it has been enough to give everything a much-needed watering. Hopefully we'll get lucky this afternoon. 

[LongBeachSurfFreak]

Strange how that area of convection off the jersey shore keeps firing over and over in the same area. It doesn’t seem to move north with the flow either. Must have to do with the Gulf Stream 

[bluewave]

2 hours ago, LibertyBell said:

What do you think of the possibilities of the two ridges connecting with each other (creating a ridge bridge as it were lol.)

It certainly has happened at times during recent summers like in June 2021 when the onshore flow kept the 100s to the west of Long Island.

 

Monthly Data for June 2021 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NJ	NEWARK LIBERTY INTL AP	WBAN	103
NJ	HARRISON	COOP	101
NY	LAGUARDIA AIRPORT	WBAN	100
NJ	CALDWELL ESSEX COUNTY AP	WBAN	100
NJ	CANOE BROOK	COOP	98
NY	NY CITY CENTRAL PARK	WBAN	98
NJ	TETERBORO AIRPORT	WBAN	98
CT	MERIDEN MARKHAM MUNICIPAL AP	WBAN	98
CT	DANBURY MUNICIPAL AP	WBAN	97
CT	NORWICH PUBLIC UTILITY PLANT	COOP	96
CT	IGOR I SIKORSKY MEMORIAL AIRPORT	WBAN	96
CT	DANBURY	COOP	96
NY	CENTERPORT	COOP	96
NY	PORT JERVIS	COOP	95
CT	OXFORD WATERBURY	WBAN	95
NY	WESTCHESTER CO AP	WBAN	95
NY	SHRUB OAK	COOP	94
CT	NEW HAVEN TWEED AP	WBAN	94
NY	BAITING HOLLOW	COOP	94
CT	STAMFORD 5 N	COOP	94
NY	MONTGOMERY ORANGE COUNTY AP	WBAN	93
NY	SYOSSET	COOP	93
NY	MOUNT SINAI	COOP	93
NJ	CHARLOTTEBURG RESERVOIR	COOP	92
NY	RIVERHEAD RESEARCH FARM	COOP	92
NY	FARMINGDALE REPUBLIC AP	WBAN	91
NY	JFK INTERNATIONAL AIRPORT	WBAN	91
NY	MATTITUCK	COOP	91
NY	ORIENT POINT STATE PARK	COOP	91
NY	CARMEL 4N	COOP	91
NY	ISLIP-LI MACARTHUR AP	WBAN	90
NY	SHIRLEY BROOKHAVEN AIRPORT	WBAN	90
CT	GROTON	COOP	90
NY	UPTON COOP - NWSFO NEW YORK	COOP	89

 

 

 

[psv88]

1.77” storm total 

[LibertyBell]

11 minutes ago, bluewave said:

It certainly has happened at times during recent summers like in June 2021 when the onshore flow kept the 100s to the west of Long Island.

 

Monthly Data for June 2021 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NJ	NEWARK LIBERTY INTL AP	WBAN	103
NJ	HARRISON	COOP	101
NY	LAGUARDIA AIRPORT	WBAN	100
NJ	CALDWELL ESSEX COUNTY AP	WBAN	100
NJ	CANOE BROOK	COOP	98
NY	NY CITY CENTRAL PARK	WBAN	98
NJ	TETERBORO AIRPORT	WBAN	98
CT	MERIDEN MARKHAM MUNICIPAL AP	WBAN	98
CT	DANBURY MUNICIPAL AP	WBAN	97
CT	NORWICH PUBLIC UTILITY PLANT	COOP	96
CT	IGOR I SIKORSKY MEMORIAL AIRPORT	WBAN	96
CT	DANBURY	COOP	96
NY	CENTERPORT	COOP	96
NY	PORT JERVIS	COOP	95
CT	OXFORD WATERBURY	WBAN	95
NY	WESTCHESTER CO AP	WBAN	95
NY	SHRUB OAK	COOP	94
CT	NEW HAVEN TWEED AP	WBAN	94
NY	BAITING HOLLOW	COOP	94
CT	STAMFORD 5 N	COOP	94
NY	MONTGOMERY ORANGE COUNTY AP	WBAN	93
NY	SYOSSET	COOP	93
NY	MOUNT SINAI	COOP	93
NJ	CHARLOTTEBURG RESERVOIR	COOP	92
NY	RIVERHEAD RESEARCH FARM	COOP	92
NY	FARMINGDALE REPUBLIC AP	WBAN	91
NY	JFK INTERNATIONAL AIRPORT	WBAN	91
NY	MATTITUCK	COOP	91
NY	ORIENT POINT STATE PARK	COOP	91
NY	CARMEL 4N	COOP	91
NY	ISLIP-LI MACARTHUR AP	WBAN	90
NY	SHIRLEY BROOKHAVEN AIRPORT	WBAN	90
CT	GROTON	COOP	90
NY	UPTON COOP - NWSFO NEW YORK	COOP	89

 

 

 

looks like the city and NE NJ like Teterboro didn't get that hot either.

 

The heat was much more extensive back in 2010 and 2011.

[Picard]

Interesting setup.  You're in the monsoon and then some if the banding sets up over you.
I'm still at 0.8" total for the wet stretch.  We'll see if anything sets up this afternoon.  If the sun were to break through, that could be entertainment for someone.  

[bluewave]

7 minutes ago, LibertyBell said:

looks like the city and NE NJ like Teterboro didn't get that hot either.

 

The heat was much more extensive back in 2010 and 2011.

Yeah, points east of NYC haven’t seen 100° heat since the 2010-2013 era. That was when the ridge was centered near the Great Lakes keeping the flow more westerly. These days we get a big ridges east of New England keeping the flow more onshore. So it’s more about the higher dew points for us.

[MANDA]

Received .62" last 24 hours here - 8am to 8am.

Four day event total = 1.22".  Quality over quantity.  The 1.22" has been slow, gentle and spread over 4 days.  All of it got to soak in instead of running off.  No excessive totals (3-4"+) for this forum so far but some places did better than others. 

[Stormlover74]

27 minutes ago, winterwx21 said:

Up to 0.75" for the entire event here. Our area hasn't done great, but at least it has been enough to give everything a much-needed watering. Hopefully we'll get lucky this afternoon. 

We're probably done til Thursday night and Friday 

[FPizz]

Just now, Stormlover74 said:

We're probably done til Thursday night and Friday 

The eastern hunterdon co/western somerset co area that I'm located in missed most of this if that is the case.  The cocorahs map shows that well.   I'm totally fine with the .26" though.  Didn't really want my dogs wet and muddy, haha.  

[winterwx21]

4 minutes ago, Stormlover74 said:

We're probably done til Thursday night and Friday 

Yeah it's more likely that the storms will stay to the north and west this afternoon, but there's a slight chance we could get lucky. 

[winterwx21]

6 minutes ago, FPizz said:

The eastern hunterdon co/western somerset co area that I'm located in missed most of this if that is the case.  The cocorahs map shows that well.   I'm totally fine with the .26" though.  Didn't really want my dogs wet and muddy, haha.  

Wow 0.26, talk about unlucky. I'm not thrilled with my 0.75, but I would have been very irritated had I gotten only a quarter inch. 

[FPizz]

Just now, winterwx21 said:

Wow 0.26, talk about unlucky. I'm not thrilled with my 0.75, but I would have been very irritated had I gotten only a quarter inch. 

I was hoping for the low end (maybe like and inch or so) but wasn't expecting this.  Maybe a storm will pop up later like you said though.

[wdrag]

On 5/4/2025 at 6:49 PM, Picard said:

It looked like a training effect was setting up on radar earlier for that area.  I figured they must've gotten heavier amounts.
When we do get thunderstorms into this area, the very top of NJ seems to do well.  I've lived in Sparta for 5 years, and it's a regular occurance to be able to watch storms off our northwest facing deck, as they train along the top of NJ and into Orange County.  I can often hear distant rumbles of thunder and the clouds are always an awesome sight.  It's less common for storms to miss to the south.

Is there anything to the geography of the area that causes this to happen?   I'd love to see average rainfall over the past few years from Port Jervis, NY vs Sparta NJ, especially during thunderstorm season.

Kittatinny Ridge-Appalachian Trail in western and northern SC and the Del River on the west side might play a role.   I agree w your obs. 

[wdrag]

Storms late this afternoon might be hailers

[MANDA]

5 minutes ago, wdrag said:

Storms late this afternoon might be hailers

Can do without the hail but would be happy with another .5" of rain or so if lucky enough to get under a heavier downpour.

[psv88]

Another batch of rain about to hit Nassau and Suffolk. Some spots will get 4” from this storm 

[winterwarlock]

1 hour ago, Stormlover74 said:

We're probably done til Thursday night and Friday 

Yep they took the showers actually out of my forecast for today..sun out and now headed to work

 

Euro failed miserably so why have any trust in it for Friday and future cut offs