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January 2020 General Discussions & Observations Thread


Rtd208

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Geez, I need anti depressants after reading page after page about 60 degree warmth. Is anybody even mildly interested in what happens late Tuesday/Tuesday night besides snow88? There is a legit chance of a at least a light snow event especially north and west. For the northern folks on this board NWS Albany is saying 2-4 possible. 

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19 minutes ago, HeadInTheClouds said:

Geez, I need anti depressants after reading page after page about 60 degree warmth. Is anybody even mildly interested in what happens late Tuesday/Tuesday night besides snow88? There is a legit chance of a at least a light snow event especially north and west. For the northern folks on this board NWS Albany is saying 2-4 possible. 

Will take it in a Heartbeat 

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40 minutes ago, HeadInTheClouds said:

Geez, I need anti depressants after reading page after page about 60 degree warmth. Is anybody even mildly interested in what happens late Tuesday/Tuesday night besides snow88? There is a legit chance of a at least a light snow event especially north and west. For the northern folks on this board NWS Albany is saying 2-4 possible. 

I'd take it but not much is working out lately....remember how tonight was snow a few days ago?

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NURSE:     No change in the patient's condition since last week DOCTOR!

DOCTOR:     This patient is Dead!     Report to my office at once Nurse!!!!!!!!!!!!

 

 

 

814analog.off.gif

So the patient was not dead after all?      Just a drug induced coma!?

rrwt-2125-nh-tmp.png

 

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11 minutes ago, CIK62 said:

NURSE:     No change in the patient's condition since last week DOCTOR!

DOCTOR:     This patient is Dead!     Report to my office at once Nurse!!!!!!!!!!!!

 

814analog.off.gif

Man every winter on that, expect 2008 locally, was bad lol. Terrible pattern for all of us. 

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7 hours ago, SnoSki14 said:

Ensembles are quite wet, the active Pacific jet will keep feeding us moisture.

It's like a tropical pattern in January.

Places like Newark could make a run on a 60 degree dewpoint. But that 68 dewpoint record during the January 1998 super El Niño is probably safe.

Highest January dewpoints at Newark

68...1998

62....2018....1972

61...2007...1993...1975

60...2005...1972

 

 

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35 minutes ago, bluewave said:

Places like Newark could make a run on a 60 degree dewpoint. But that 68 dewpoint record during the January 1998 super El Niño is probably safe.

Highest January dewpoints at Newark

68...1998

62....2018....1972

61...2007...1993...1975

60...2005...1972

 

 

68 dp in January this far north is insane!! Indicative of how warm the 97-98 super El Nino winter was. 

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Temperatures rose into the lower 50s across the New York Metro Area and nearby suburbs today.

New York City will very likely have a mean temperature of 40° or above during the first week of the month. Since 1869, there were 23 cases when the first week of January had a mean temperature of 40° or above in New York City. In 17 (74%), January wound up warmer than normal and in 12 (52%), January had a mean temperature of 35° or above. The average monthly temperature for January for all 23 cases was 36.0° (median temperature: 35.6°).

A short-duration cold shot is possible after the first week of January. A small window of opportunity for at least some snowfall in the region and especially across central/upstate New York and New England could exist until around January 10.

Based on the forecast strongly positive AO, the probability of a significant (6" or greater snowstorm) for the major cities of the Middle Atlantic region during the first 10 days of January is low. Since 1950, the biggest snowfall for that region when the AO was +2.000 or above during the January 1-15 period occurred during January 14-15, 1954 when Philadelphia received 3.0" snow and New York City picked up 2.0". Boston has had numerous 6" or greater snowstorms during such cases, including one 10" or greater snowstorm. Therefore, the risk of significant snow would likely be greatest over New England assuming this relationship holds (no significant offsetting variables). Such a scenario does not preclude the possibility of a light snow event across parts of the region during this timeframe, particularly prior to January 10.

Afterward, a tendency for ridging with warmer than normal temperatures prevailing will very likely develop during the latter part of the second week of the month and persist through at least mid-month. Afterward, the progression of the MJO and state of the teleconnections will determine the pattern evolution for the second half of the month.

Right now, there is strong consensus between the EPS and GEFS that the PNA will remain negative to strongly negative past mid-month. That typically translates in warm anomalies in the Middle Atlantic region. For the January 16-31, 1981-2019 period, the mean temperature for New York City and Philadelphia was 32.2° and 32.1° respectively. When the PNA was negative, those values were 34.2° and 34.1° respectively. The coldest mean temperatures for PNA- periods occurred when the EPO and AO were both negative. The warmest occurred when the EPO and AO were both positive.

The ENSO Region 1+2 anomaly was +0.3°C and the Region 3.4 anomaly was +0.4°C for the week centered around December 25. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +0.27°C and the ENSO Region 3.4 anomaly has averaged +0.48°C. The remainder of winter 2019-2020 will likely feature neutral-warm to weak El Niño conditions.

The SOI was +11.50 today.

Today, the preliminary Arctic Oscillation (AO) figure was +3.040.

No significant stratospheric warming event appears likely through January 12, several periods of warming appear likely to develop in the upper stratosphere and approach or reach 5 mb over the next 10 days. Wave 2 activity will remain relatively muted following the first week of the month except in the upper stratosphere where it will trigger the warming principally above 5 mb. Overall, most of the stratosphere is forecast to remain cold on the EPS.

On January 3, the MJO was in Phase 1 at an amplitude of 0.331 (RMM). The January 2-adjusted amplitude was 0.512.

Based on sensitivity analysis applied to the latest guidance, New York City has an implied 79% probability of a warmer than normal January.

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1 hour ago, bluewave said:

Places like Newark could make a run on a 60 degree dewpoint. But that 68 dewpoint record during the January 1998 super El Niño is probably safe.

Highest January dewpoints at Newark

68...1998

62....2018....1972

61...2007...1993...1975

60...2005...1972

 

 

the trend during the past few years has been for dewpoints to increase right up to verification time so i wonder if there's a shot

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42 minutes ago, White Gorilla said:

68 dp in January this far north is insane!! Indicative of how warm the 97-98 super El Nino winter was. 

Of course that was the second year for the ski shop I had just moved into a new building. It didn't snow and things were worse than touch and go until a friend helped me out and we turned it into a mt bike shop in March. I think the local ski area, Thunder Ridge, had a season total of about 15" and that included 2 sleet storms. 

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