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Weekend Disco/Obs Thread


stormtracker

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I sometimes find those 500 mb to be a bit of a mystery, but the energy swinging through on sat looks better, to me.

Seems to still be quite a bit of variability from run to run. Who knows what this looks like tomorrow. Sure would be nice to get those temps down a few degrees just a bit sooner.

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The qpf with the trailing vort precip is looking good this run, but is just a bit south. Let's go for mitch's undeniable trend north.

Works out well for me...runs right through central VA. Surface temps are cold enough around hr 48 and that is when the bulk of the precip moves through. You're probably right as far as the north trend goes, though. I'm just looking for RIC to report anything more than a T this winter.

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I sometimes find those 500 mb to be a bit of a mystery, but the energy swinging through on sat looks better, to me.

Seems to still be quite a bit of variability from run to run. Who knows what this looks like tomorrow. Sure would be nice to get those temps down a few degrees just a bit sooner.

I can't remember another winter where in mid feb with a slp bombing off the coast we had bl issues like this... They're screwing us out of a moderate event

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Judging from the 850 low path, the surface depiction would argue for even closer to the coast... I still think the gfs is sorting things out a bit, but better than the nam

there's pretty good consensus on the low track around here at this point.. it's not going ot hit us

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I can't remember another winter where in mid feb with a slp bombing off the coast we had bl issues like this... They're screwing us out of a moderate event

the low doesnt really bomb initially.. not till it gets up to se of new england and long island

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millz, regarding your post you deleted there is a diff on this run of the nam and gfs but im not sure it's that important. im talking more generally where the low forms and then moves on various runs of late. the front is going to impede its west movement no matter what imo. there's only so much we can get out of it especially with it in its formative stages at the point it passes.. not to mention phases often happen late so who knows if it will even look as "good" as models show right now.

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we have about 5 weeks left here in the immediate metro areas....

In winters such as this one, did you notice any anomalous period of time? I remember a while back talking to you about this, and a few others, and I believe some of these styled winters tended to have something ~ Feb 20 and again March 10-15.

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In winters such as this one, did you notice any anomalous period of time? I remember a while back talking to you about this, and a few others, and I believe some of these styled winters tended to have something ~ Feb 20 and again March 10-15.

I guess it depends how you define this type of winter....and where the storms occurred

I kind of lump this winter in with the torch winters of the past that were either ninas or nina - like (neutral after nina)...I included 1971 and 1975 even though they werent quite as torchy from beginning to end

1889, 1949, 1971, 1973, 1974, 1975, 1996, 1998, 2001, 2007

1889, 1949 both had moderate mid to late march storms and 1975 had the good interior one

1973, 1974, 1996, 2001, 2007 were pretty much shutouts after 2/15 though there may have been something interior

1971 (2/15-2/25) and 1998 (2/25 - 3/15) were the only 2 that had good wintry periods in late season

and this pretty much lines up with my thinking from here on out

15% - we get a period with multiple 3"+ events in DC metro or two separate 3"+ events without the "good" period

20% - we get one 3"+ in immediate DC metro, and interior sees at least one

25% - we get shutout other than a minor cartop/grassy event or 2 but interior gets a decent event (widespread 4"+)

40% - virtual shutout...maybe a cartop coating for DC metro, and interior at best gets a couple localized 1-2" like we just saw

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Good stuff. Assuming the MJO continues to propagate and ENSO doesn't do anything drastic, there is some real potential for some very warm periods in March. There are two possible issues for warmth:

1. Shortening wavelengths may keep a trough near the East Coast late in the month (Alaskan / PAC NW trough = East Coast trough)

2. Reemergence of polar blocking with the state of the sun.

Could be a weird look to the monthly anomaly where like the Mid-Atlantic is on either side of normal while New England and the South are definitely above normal. Just speculating...

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Good stuff. Assuming the MJO continues to propagate and ENSO doesn't do anything drastic, there is some real potential for some very warm periods in March. There are two possible issues for warmth:

1. Shortening wavelengths may keep a trough near the East Coast late in the month (Alaskan / PAC NW trough = East Coast trough)

2. Reemergence of polar blocking with the state of the sun.

Could be a weird look to the monthly anomaly where like the Mid-Atlantic is on either side of normal while New England and the South are definitely above normal. Just speculating...

I definitely would lean warm as well....You do get some nasty late season cold fronts but they are so shortlived it is in the 60s, 48 hours later.....I remember in March 2002 we got a couple nasty air masses late in the season and it was cold as sh-it at night probably because of the drought....Late March brought a -20 departure air mass. which was colder wrt normal than we had seen all winter

I'm looking for 1 of 2 things in March/April that would make it cool...a heat wave of mid to upper 80s followed by a snowstorm a few days later (probably interior).....and/or a massive epic noreaster which would also probably be an interior event....but a huge QPF event

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I definitely would lean warm as well....You do get some nasty late season cold fronts but they are so shortlived it is in the 60s, 48 hours later.....I remember in March 2002 we got a couple nasty air masses late in the season and it was cold as sh-it at night probably because of the drought....Late March brought a -20 departure air mass. which was colder wrt normal than we had seen all winter

I'm looking for 1 of 2 things in March/April that would make it cool...a heat wave of mid to upper 80s followed by a snowstorm a few days later (probably interior).....and/or a massive epic noreaster which would also probably be an interior event....but a huge QPF event

I could definitely see that happening this March. Some impressive warm departures very close to a late-season winter storm. The late March negatives make sense too with the rising averages.

There is usually that last cold shot in early April too.

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