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January 2020 General Discussions & Observations Thread


Rtd208

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4 hours ago, bluewave said:

We got lucky in March when the strong -EPO disrupted the unfavorable pattern. But there was enough of a lingering influence so the best snows were NYC-LI North Shore, and CT. I only got about 4” here on the South Shore last March.
 

82A5AC9A-30D9-4117-B881-6CCD896B76C7.png.77f98e5288dfd06b569a99a07baa0e6a.png

 

March was a good month up here, about 10-12” between three events. At times there was 4-5” on the ground here and almost zilch in Long Beach. 

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Looks more probable that we see a cutter driven muddied torch post 1/9.

This means generally rainy, cloudy weather with temps in the 50s to low 60s and very warm mins. Not great if you were hoping for dry/mild weather like 01/02 or 11/12.

For the coldest period climo wise these are easily +10 to +20 AN numbers but not quite record breaking. 

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The next 8 days are averaging 41degs., or 8 degs. AN.[used 43/56 for today].    At this rate the last 20 days of January will need to be -4.5 to get us back to Normal.    Some 60's are more likely than seeing any snow for the next 15 days. 

CFS shows no Snow on the ground here till Jan. 25.      The CFS is a Notorious Malcreant that loves to show a White Christmas but never says which year it is referring to.

 

49* at 6am.  48*(all night)    Back to 48* and 1/4mi. Fog by 7am.     50* since Noon *(2pm now)-same Fog.     Down to 44* by 10pm.

 

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Unusually warm minimums across the whole area since December 23rd. White Plains just experienced the 3 warmest minimum on record12-23 to 01-03. NYC was the 2nd warmest over the same period. While these wet and cloudy warm ups limit the high temperature potential, the minimum temperatures have trouble falling with the clouds and higher dewpoints.
 

Time Series Summary for WESTCHESTER COUNTY AP, NY
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Lowest Min Temperature Dec 23 to Jan 3
Missing Count
1 2016-01-03 28 0
2 2007-01-03 27 0
- 2004-01-03 27 0
- 1983-01-03 27 0
3 2019-01-03 26 0
- 2006-01-03 26 0

 

Time Series Summary for NY CITY CENTRAL PARK, NY
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Lowest Min Temperature Dec 23 to Jan 3
Missing Count
1 2007-01-03 33 0
2 2020-01-03 32 0
- 2019-01-03 32 0
- 2016-01-03 32 0
- 2006-01-03 32 0
- 1983-01-03 32 0
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6 hours ago, SnoSki14 said:

Looks more probable that we see a cutter driven muddied torch post 1/9.

This means generally rainy, cloudy weather with temps in the 50s to low 60s and very warm mins. Not great if you were hoping for dry/mild weather like 01/02 or 11/12.

For the coldest period climo wise these are easily +10 to +20 AN numbers but not quite record breaking. 

sounds like a cooler version of December 2015....

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There remains broad agreement among the ECMWF, GEFS, and bias-corrected GEFS that the MJO will be progressing to Phase 4 at an amplitude in excess of +1.500. Afterward, it should progress into Phase 5. The result will be a pattern that favors ridging in the means from January 10-17 and perhaps somewhat longer.

Afterward, if past cases of such high amplitude MJO passages through Phase 4 during the January 5-20 period are representative, it should move toward and likely into Phases 7 and 8, if only for a short time.

In a majority of cases, the 500 mb pattern changes dramatically to one that favors a ridge in the West and trough in the East. However, in a not insignificant cluster of cases, the pattern adjusts somewhat, but ridging continues to predominate in the East.

15-day Mean 500 mb Anomalies for the period beginning 10 days after the MJO Peaks in Phase 4 at an amplitude of +1.500 or above during the January 5-20 period:

MJO01042020.jpg

One teleconnection appears to offer insight into how the pattern will evolve. All of the cases that went into the cluster that saw ridging persist in the East had a PNA that remained persistently and predominantly negative.

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5 hours ago, blizzard24 said:

every one thinks it will be that warm and last that long well think again . dont count on that . i wouldnt be surprise if got snow during the warm up that model show .

It's never really a surprise to see snow in Jan, even in an unfavorable season. Saw it in '12. 

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9 minutes ago, weatherpruf said:

Don't even remember it....where was it ? ( I t certainly wasn't IMBY )

1-4-18 was the lowest MSLP blizzard on record to move over the 40/70 benchmark at 950 mb. The follow up record snows in March and early April when ISP went 30”+ marked the end of the benchmark storm track through today. Almost like a grand finale of a fireworks show. Everyone wants to know when the cutter and hugger storms tracks will shift back to the benchmark.

https://www.weather.gov/okx/Blizzard_Jan42018

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47 minutes ago, Brasiluvsnow said:

88 sorry to say that I dont believe much of anything that the models show especially when it is more the 24 or 48 hours out. I hope they are correct THIS TIME but I am not buying in until i see it happen 

Agree especially what's happening this winter. 

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Models continuing with one of the strongest MJO phase 4-5 events on record for January. This could keep a warm SE ridge pattern in place through the 20th . More models getting over to phase 6 near the end of the runs which is still a warm phase for us. We are still experiencing the lagged warmth from the late December phase 6 passage.

A9EA835D-8A15-4BAB-971F-07D6D9DBCE4E.gif.976ff51483837cbb6bb567759035032e.gifA3E4C216-E0C2-4F9B-88EC-73705CFD311C.gif.4e5831374c73c6d558dddd52acb3a095.gif

3E1F0F5C-1792-4DB2-B0C7-78DD2EA861E2.png.007afe78cc79ecce56cf76c9357d4c72.png

 

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19 minutes ago, bluewave said:

Models continuing with one of the strongest MJO phase 4-5 events on record for January. This could keep a warm SE ridge pattern in place through the 20th or 24th. More models getting over to phase 6 near the end of the runs which is still a warm phase for us. We are still experiencing the lagged warmth from the late December phase 6 passage.

A9EA835D-8A15-4BAB-971F-07D6D9DBCE4E.gif.976ff51483837cbb6bb567759035032e.gifA3E4C216-E0C2-4F9B-88EC-73705CFD311C.gif.4e5831374c73c6d558dddd52acb3a095.gif

3E1F0F5C-1792-4DB2-B0C7-78DD2EA861E2.png.007afe78cc79ecce56cf76c9357d4c72.png

 

The GEFS has continued to shift toward a higher amplitude passage through the Maritime Continent. I suspect that's part of the reason the 6z GEFS showed a fleeting flattening of the ridge and then its rebound in the extended range.

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35 minutes ago, bluewave said:

Models continuing with one of the strongest MJO phase 4-5 events on record for January. This could keep a warm SE ridge pattern in place through the 20th or 24th. More models getting over to phase 6 near the end of the runs which is still a warm phase for us. We are still experiencing the lagged warmth from the late December phase 6 passage.

A9EA835D-8A15-4BAB-971F-07D6D9DBCE4E.gif.976ff51483837cbb6bb567759035032e.gifA3E4C216-E0C2-4F9B-88EC-73705CFD311C.gif.4e5831374c73c6d558dddd52acb3a095.gif

3E1F0F5C-1792-4DB2-B0C7-78DD2EA861E2.png.007afe78cc79ecce56cf76c9357d4c72.png

 

It’s becoming clear that any large scale long wave pattern change is going to have to wait until early-mid February

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18 minutes ago, donsutherland1 said:

The GEFS has continued to shift toward a higher amplitude passage through the Maritime Continent. I suspect that's part of the reason the 6z GEFS showed a fleeting flattening of the ridge and then its rebound in the extended range.

Yeah, I saw that. This could be one of our warmest January 10th to 20th periods on record.

Time Series Summary for NY CITY CENTRAL PARK, NY
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Mean Avg Temperature Jan 10 to Jan 20
Missing Count
1 1932-01-20 46.6 0
2 1995-01-20 44.3 0
3 1937-01-20 41.7 0
4 2006-01-20 41.6 0
5 1933-01-20 41.4 0
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Looking at the CFS weeklies and extrapolating, the last 2 weeks look good but the trough in the east already looks to be migrating to the west again. I would hate to think that we are only looking at a 2 week window of opportunity before it goes warm again. May be one of those winters. 

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Just now, EastonSN+ said:

Looking at the CFS weeklies and extrapolating, the last 2 weeks look good but the trough in the east already looks to be migrating to the west again. I would hate to think that we are only looking at a 2 week window of opportunity before it goes warm again. May be one of those winters. 

Not sure but many people think February and March will be really good  with the MJO traveling into 7 and 8.

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2 hours ago, Snow88 said:

Maybe a bit of snow during the week?

Models are trending more progressive 

This is actually something to track in this garbage winter, even if it is only an inch or so. We all know the period after this is an abomination.   I think that has been discussed ad nauseam at this point.  

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2 minutes ago, Snow88 said:

Not sure but many people think February and March will be really good  with the MJO traveling into 7 and 8.

Yeah we would definitely get a window, just hope it's not limited. We can score big with a 4 week window, however 2 weeks is another story. 

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