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March 2018 Discussions & Observations Thread


Rtd208

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1 hour ago, Cfa said:

56 here, could be a lot worse, but days like this still suck. It’d be nice if the sun came out, temps would soar.

Its what I dislike most about NYC climate. In spring, seeing temps DC to Philly, sometime even closer, soar while  NYC and points N & E stuck in cool clamy weather.  Have to take the good with the bad though.

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Looks like the 62 today will be the high temperature for March at Newark. This establishes a new 18 degree monthly high temperature drop from February to March. The previous record that I could find was a 9 degree fall in 1984. This is also the 6th coldest March high temperature at Newark. 1984 was the coldest on record going back to 1931.

Newark monthly highs

2018...Feb..80...Mar...62....-18

1984...Feb...66...Mar...57.....-9

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On 3/29/2018 at 11:04 AM, winterwx21 said:

That's ridiculous. Those types of things are supposed to be planted in very early Spring. They're called cool weather crops for a reason. If you wait until late April to plant them, then they mature in weather that's too warm and the crops aren't as good. I've been planting that stuff (peas, broccoli, lettuce and radishes) in late March for the last 20 years and have never had a problem. The 2003 snowstorm didn't harm anything because that stuff is so hardy. Now warm weather vegetables like tomatoes and beans, that's a different story. That stuff I don't plant until May when the threat of frost is gone.

We've had hot weather as early as April, we don't really have "cool" weather here- it usually goes from cold to hot and vice versa.  

Anyway I don't want so-called "Spring" weather here, can't breathe with all the damn pollen.  I wouldn't mind defoliating the area.

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21 hours ago, donsutherland1 said:

With showers and fog giving way to sunshine this afternoon, the temperature could push into the upper 50s and then lower 60s across the region. A few locations in central New Jersey could reach the middle 60s.

After strong consistency in its runs, the 3/29 12z ECMWF departed dramatically from its idea of colder than normal conditions with a risk for some snow in the region in its extended forecast. However, the ensembles have maintained decent run-to-run continuity, so right now the ECMWF appears to be an outlier. Then, at 0z, the ECMWF flipped back to a cold outcome with two snowfalls (4/2 and 4/7-8). The earlier date has some additional model support.

Therefore, it remains likely that at least the first half of April will wind up colder than normal in the NYC region. The potential for measurable snowfall in parts of the area remains higher than climatologically normal.
 
New York City’s Average Temperature Through:

3/29 39.4° (2.7° below normal)
3/31 40.0°-40.2° (3/29 estimate: 40.1°-40.5°)

Per sensitivity analysis, the estimated probability of an below normal monthly anomaly: >99.9% (3/29 estimate: >99.9%)

Don, looks like we could get a 1-3" snowfall from the 4/2/18 event, I wonder what the second event will amount to?  There have been a couple of other Aprils where we had two snow events- 1982 and 1996 come to mind.

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Last day of March will average 50degs., or 4degs. AN.  Month to date is  -2.4.   Will end at  -2.2.  The whole 8 day period is averaging 47degs., or 1deg. BN.

Both the GFS/CMC still have some snow on Sunday night.  So this still could qualify as an AFD'sJ.

But wait, the EURO is wild with two perfect paths and overnight? timed storms, the 2nd, 7th.

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March will conclude as a colder and snowier than normal month across the region. A number of locations in the Northeast saw among their highest snowfall on record for March. Those locations include:

Albany: 36.0” (3rd highest on record)
Allentown: 20.7” (4th highest on record)
Bangor: 33.0” (6th highest on record)
Binghamton: 36.3” (4th highest on record)
Boston: 23.3” (4th highest on record)
Bridgeport: 14.5” (6th highest on record)
Burlington: 30.1” (8th highest on record)
Islip: 31.9” (old record: 23.3”, 1967)
Manchester: 32.3” (2nd highest on record)
Portland: 33.0” (7th highest on record)
Syracuse: 43.6” (3rd highest on record)
Worcester: 42.3” (2nd highest on record)

The first half of April will likely see below normal temperatures. Further, the forecast teleconnections are consistent with those typically associated with higher than normal precipitation. As a result, there could be one or even two opportunities for measurable snowfall in the region.

Since 1950, 55 storms have brought measurable snowfall to at least one of the following cities: Boston, New York City, and Philadelphia. 76% of those systems brought measurable snowfall to Boston; 29% to New York City; and 29% to Philadelphia. 16 or 29% of the storms brought measurable snowfall to at least two of the above three cities. Among that subset, 75% brought measurable snowfall to Boston, 88% to New York City, and 69% to Philadelphia. The latest such storm since 1950 occurred on April 19-20, 1983. Since 2000, there have been three such storms: April 9, 2000, April 7-8, 2003, and April 5, 2006.

At present, two possible opportunities for measurable snowfall in at least parts of the region exist: 4/2 and 4/6-8. Both events were shown on the 0z ECMWF.

New York City’s Average Temperature Through:

3/30 39.9° (2.4° below normal)
3/31 40.1°-40.3° (3/30 estimate: 40.0°-40.2°)

Per sensitivity analysis, the estimated probability of an below normal monthly anomaly: >99.9% (3/30 estimate: >99.9%)

New York City April Snowfall Climatology: 1869-2017

Days with measurable snowfall: 59
Days with 0.5" or more snowfall: 43
Days with 1" or more snowfall: 29
Days with 2" or more snowfall: 20
Days with 3" or more snowfall: 13
Days with 4" or more snowfall: 9
Days with 5" or more snowfall: 7
Days with 6" or more snowfall: 6
Days with 7" or more snowfall: 4
Days with 8" or more snowfall: 4
Days with 9" or more snowfall: 2
Days with 10" or more snowfall: 1

Years with 1 or more days with measurable snowfall: 42
Years with 2 or more days with measurable snowfall: 13
Years with 3 or more days with measurable snowfall: 3
Years with 4 or more days with measurable snowfall: 1

Most days with measurable snowfall: 4, 1875

Highest daily snowfall: 10.0", April 3, 1915
Biggest April snowstorm: 10.2", April 3-4, 1915

Distribution of Measurable Snowfall:
April 1-10: 28 (47%)
April 11-20: 28 (47%)
April 21-30: 3 (5%)

Latest measurable snowfall: April 29, 1874 (0.5")

Most recent April measurable snowfall: April 5, 2006 (0.1")

Note: Measurable snow may well have fallen in Central Park on April 2-3, 2016, but no timely measurement was made when the snow stopped falling.

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7 minutes ago, donsutherland1 said:

March will conclude as a colder and snowier than normal month across the region. A number of locations in the Northeast saw among their highest snowfall on record for March. Those locations include:

Albany: 36.0” (3rd highest on record)
Allentown: 20.7” (4th highest on record)
Bangor: 33.0” (6th highest on record)
Binghamton: 36.3” (4th highest on record)
Boston: 23.3” (4th highest on record)
Bridgeport: 14.5” (6th highest on record)
Burlington: 30.1” (8th highest on record)
Islip: 31.9” (old record: 23.3”, 1967)
Manchester: 32.3” (2nd highest on record)
Portland: 33.0” (7th highest on record)
Syracuse: 43.6” (3rd highest on record)
Worcester: 42.3” (2nd highest on record)

The first half of April will likely see below normal temperatures. Further, the forecast teleconnections are consistent with those typically associated with higher than normal precipitation. As a result, there could be one or even two opportunities for measurable snowfall in the region.

Since 1950, 55 storms have brought measurable snowfall to at least one of the following cities: Boston, New York City, and Philadelphia. 76% of those systems brought measurable snowfall to Boston; 29% to New York City; and 29% to Philadelphia. 16 or 29% of the storms brought measurable snowfall to at least two of the above three cities. Among that subset, 75% brought measurable snowfall to Boston, 88% to New York City, and 69% to Philadelphia. The latest such storm since 1950 occurred on April 19-20, 1983. Since 2000, there have been three such storms: April 9, 2000, April 7-8, 2003, and April 5, 2006.

At present, two possible opportunities for measurable snowfall in at least parts of the region exist: 4/2 and 4/6-8. Both events were shown on the 0z ECMWF.

New York City’s Average Temperature Through:

3/30 39.9° (2.4° below normal)
3/31 40.1°-40.3° (3/30 estimate: 40.0°-40.2°)

Per sensitivity analysis, the estimated probability of an below normal monthly anomaly: >99.9% (3/30 estimate: >99.9%)

New York City April Snowfall Climatology: 1869-2017

Days with measurable snowfall: 59
Days with 0.5" or more snowfall: 43
Days with 1" or more snowfall: 29
Days with 2" or more snowfall: 20
Days with 3" or more snowfall: 13
Days with 4" or more snowfall: 9
Days with 5" or more snowfall: 7
Days with 6" or more snowfall: 6
Days with 7" or more snowfall: 4
Days with 8" or more snowfall: 4
Days with 9" or more snowfall: 2
Days with 10" or more snowfall: 1

Years with 1 or more days with measurable snowfall: 42
Years with 2 or more days with measurable snowfall: 13
Years with 3 or more days with measurable snowfall: 3
Years with 4 or more days with measurable snowfall: 1

Most days with measurable snowfall: 4, 1875

Highest daily snowfall: 10.0", April 3, 1915
Biggest April snowstorm: 10.2", April 3-4, 1915

Distribution of Measurable Snowfall:
April 1-10: 28 (47%)
April 11-20: 28 (47%)
April 21-30: 3 (5%)

Latest measurable snowfall: April 29, 1874 (0.5")

Most recent April measurable snowfall: April 5, 2006 (0.1")

Note: Measurable snow may well have fallen in Central Park on April 2-3, 2016, but no timely measurement was made when the snow stopped falling.

Thanks Don , good info as usual. Ps Driving home from Florida next Saturday so all eyes for me on the 2nd event, If it is going to happen I hope the start time holds off until Sunday

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32 minutes ago, Brasiluvsnow said:

Thanks Don , good info as usual. Ps Driving home from Florida next Saturday so all eyes for me on the 2nd event, If it is going to happen I hope the start time holds off until Sunday

You will probably run into the storm's snowfall before the snow starts falling in New York City. Have a great time in Florida and safe drive back.

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21 hours ago, dWave said:

Its what I dislike most about NYC climate. In spring, seeing temps DC to Philly, sometime even closer, soar while  NYC and points N & E stuck in cool clamy weather.  Have to take the good with the bad though.

I agree, I hate the cold more than anything, but delayed spring warmth is almost just as bad, especially when the warm air is right on our doorstep.

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NYC 4" 6" 10" snowfalls by the month since 1947-48...

...........4"..........6"..........10"

Nov.....2...........0.............0

Dec...28...........16...........8

Jan...43............20...........8

Feb...50...........29..........14

Mar...33...........14............4

Apr.....3.............1............0

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March ended at  -2.4.

Next 8 days averaging 47degs., or 3degs. BN.

GFS/CMC/EURO both have about 3" Snow tonight and early tomorrow.  Future storms were dropped by the first two models, EURO likes the 10th now.

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19 minutes ago, CIK62 said:

March ended at  -2.4.

Next 8 days averaging 47degs., or 3degs. BN.

GFS/CMC/EURO both have about 3" Snow tonight and early tomorrow.  Future storms were dropped by the first two models, EURO likes the 10th now.

Gfs just brought next weekends storm back.

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Islip and surrounding locations experienced some of the more extreme recent weather.

Snowiest March

#1...2018...31.9"

#2...1967...23.3"

4th month with 30" or more of snowfall for the 2010's

Jan 2011...34.4

Feb 2013...31.4"

Jan 2015...30.2"

Mar 2018...31.9"

Total February and March precipitation

#1...2010...14.74"

#2..2018....13.88"

Total February precipitation

#1...2018...2008...1971...6.21"

Total March Precipitation

#1...2010....9.41"

#2...2001....8.38"

#3...2018....7.67"

First two months in a row with 6" or more of precipitation since May and June 1998.

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On 3/31/2018 at 9:18 PM, donsutherland1 said:

Today's 58°-39° split at Central Park led to a 40.1° mean temperature for March. That was 2.4° below normal. March was also 1.9° cooler than February.

It's disappointing to see the avg temp spike up to 40+ degrees when most of the month averaged in the mid 30s :(

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