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January 2019 Discussion


40/70 Benchmark

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Just now, SnowGoose69 said:

 The Op Euro and EPS has shown a pretty broad scale trof dropping into the eastern half of the country now for 5 consecutive runs day 8-10.   It really hasn’t had the look of a transient feature at all which is why the 11-15 day EPS has been fishy to me the last 2 days or so.  

Yeah we mentioned that a couple days ago ... sort of the under radar aspect means, the EPS was wrong yesterday ...if it is right today.  And if the EPS is right today ...that means the GEFs wins this debate. 

sort of ... maybe not exactly all fields but those that tend to eschew the GEFs really shouldn't - straw man argument

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Just now, STILL N OF PIKE said:

Let’s bring this to day 3 please 

no real faith in models in this set up 5-5.5 days out 

but def good to see!

Agreed. This one is also a precarious setup. It has some good things going for it but it wouldn't take much to make it a non-event. At least it looked a bit better today...certainly better than looking worse. 

 

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7 minutes ago, OceanStWx said:

While data ingest is not a problem during the shutdown, what could be an issue is fixing problems that arise.

No development is allowed (hence why the FV3 roll out is pushed back now). A critical failure of the GFS I'm sure could be worked on, but a prominent bias couldn't be worked on.

Good to know...  Been asking this question but didn't seem anyone knew ... 

Is that true over sees products reliant upon western hemisphere ? 

Yeah, that's an interesting point about spin back into operation...  heh, if that ever happens. 

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18 minutes ago, Typhoon Tip said:

Good to know...  Been asking this question but didn't seem anyone knew ... 

Is that true over sees products reliant upon western hemisphere ? 

Yeah, that's an interesting point about spin back into operation...  heh, if that ever happens. 

I'm not aware of any data that would not be available to the international community during the shutdown (e.g. balloons, satellite, etc). 

While the FV3 has been running in parallel to the GFS for many months, the true 30 day parallel test was supposed to start around now. That can't go on now, so more or less for each day we are shut down in January (hopefully that's it) the operational data will be pushed that many days back into February.

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Borrowed from another forum:

Embedded video
 

What the JMA weeklies do with tropical forcing over the next 4 weeks isn't ideal for long-lasting wintry patterns in the eastern U.S. [doesn't mean it can't snow]

After a brief trip into phase 8, it fades and then reemerges into phases 5-6 later in the month. Similar to ECMWF.

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9 minutes ago, EastonSN+ said:

Borrowed from another forum:

Embedded video
 

What the JMA weeklies do with tropical forcing over the next 4 weeks isn't ideal for long-lasting wintry patterns in the eastern U.S. [doesn't mean it can't snow]

After a brief trip into phase 8, it fades and then reemerges into phases 5-6 later in the month. Similar to ECMWF.

I'd like to run a composite for the last week of January and first week of February for all weak el nino events, and see how many ugly stretches there were. My guess is not many....not saying to disregard that, but I think both need to be considered.

Harkens back to what John said regarding deconstructive and constructive interference not being absolute terms....modoki forcing should grow more pervasive by the day from here on out and will be more difficult to negate.

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11 minutes ago, Snow88 said:

All those with the standard cold February forecast are jumping all over it. Did anyone anywhere  forecast a warm February ? 

"However, a major stratospheric warming event has begun," according to AccuWeather Senior Meteorologist Brett Anderson."

AccuWeather's winter forecast, which was released during the late summer of 2018, did not call for a significant and long-lasting downturn in temperatures until late January and more so during February for the eastern U.S.

At this point, people from the Great Lakes to the Northeast should still expect late January to February to feel like the middle of winter.

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