Stormchaserchuck1

Back to light snow.. it's been going back and forth. A lot of models had it ending, or dryslotting between 1-2am so I'm glad it's still snowing to the west of DC..

Moderate snow here for the last 15 minutes, bigger flakes. 4" total. It looks like radar is backbuilding still! Both the 6z Hrr and RAP had no more than 1/2" to southern PA.. edit: tiny, nice flakes again. lots of them! The coastal must be developing.

Nice band coming for DC! I like how the radar looks.. a few models had less activity in the south part of the band right now. 05z Hrr has less than 1" more here.. I don't know about that..

My 9th grade science teacher referred me to DT who posted on Wright-weather. That was in 2001.

Snow pretty good again here, nice small dendrites. It was lite for the last 45 minutes, now started picking up again

Congrats! I think I'm over 3" here

Surprised.. models were all over this yesterday. They upped the totals in TN way up, and were going more negative with the trough. All you had to do is see what they were doing with everything vs reading the output totals verbatim. LWX did well I think, although they could have issued WSW's yesterday when it looked like the coastal was going to become stronger.

Actually nice to see the radar filling in near Harrisonburg

I don't agree with this.. there is a +3 day-0 correlation, then it drops down to near 0, then it goes up to +10 at day+20 (20 days after 10mb warming). If the events saw a -NAO during initial warming didn't make a difference in the eventual lagged event. The correlation isn't perfect, but it's about 65-70% of time, indifferent to what happens at D+0.

Do you know the Ravens ended up playing only 3 teams that finished the season under .500.

I have good flakes here in Harford Co. Will probably end up with 5-7".

GFS has some pretty moderate snow in northern MD tomm late morning/early afternoon

That one's not going to overperform like this one did. It's really a matter of temps, when we are marginal we don't overperform.. it's pretty simple.

I have about 2.5". Looks like another 2-3" on the way in the next few hours here. Then we'll see if the coastal can give something extra.

Whole pattern is changing pretty fast at that point though. It looks like they want to reload the cold given by -WPO block. With the block retrograding and not reloading at that point though, it may not verify as cold as they currently have.

Really gets going in NE MD. RAP has been showing this for several straight runs.. we'll see. 25F

Here's what they are showing for February.. and have been showing this for a while. since at least September. Other global models are showing the same thing in the PNA region

That storm could trend warmer. Cold air will be cutoff, with NAO going + and -WPO retrograding

Looks like about 1" so far in Fallston, MD. Coming down heavier now.

Really became a storm NW of Philly and NYC. I don't think the NW trend is over this year.. even the next weekend storm might end up pretty near freezing.

21z RAP keeps the precip around tomorrow.. and goes 4-6" in northern MD

18z GFS is a good 3-4" here.

As far as long range forecasting goes, this is probably the most data I have seen supporting a favored atmospheric state 1+ month out. The Euro weeklies, ECMWF seasonal forecasting model, and other seasonal models all have a big +PNA (N. Pacific 500mb low) developing and sustaining for the month of February. For the last few decades, ENSO has correlated to the Global pattern, of all months of the year, the most in February. In La Nina's, we have seen a lot of -PNA's, and El Ninos, +PNA's during this month. The El Nino right now is in a "Strong" state, with Nino 3.4 sitting at +2.0c: It is actually the 7th total greatest ENSO event (all el nino's and la nina's) since 1948. My issue with +PNA February is we have seen a global state take over in the last 6 years. For a 6 year period, there is no other 500mb anomaly stronger than the -PNA we have seen from 2018-2023: The 2nd place 6-year running anomaly total only hits 0.80 correlation to ^this max. Now we have had more La Nina's over that 6-year period, but even our Neutral-El Nino Winter's have had a mean -PNA in recent February's: Which would you predict for February, a continuation of the recent ongoing years anomaly spike in the N. Pacific Ocean, or an El Nino driven +PNA (breaking the trend completely)? The CPC is going with a break, on a soft +PNA signal: https://ibb.co/dL4P5nW And long range 12z GEFS also has us going +PNA right now around Feb 1st. I think the patterns we have seen in December and January so far do not point to a big +PNA developing like seasonal models say, unless the El Nino all of a sudden wakes up, but it may be hard to sustain this -PNA pattern a 7th consecutive year. Should be interesting to see what happens. Any thoughts/analysis? I think if we don't do a -PNA in February, we'll do it in March.

I've seen this plenty of time in the historical analysis - where a major 10mb warming occurs when the AO/NAO is ++. It still "downwells" to a strong -NAO correlation in 15-25 days! It's about 65-70% probability, which would put us at Feb 1-7. Current 15d models are already trying to shift the NAO back to Neutral.

Yeah, that's weird that I have to wear a label. Don't get it.. I should complain like zywts. It's a shame, I have a lot to offer OT lol.