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Saint Patrick's Day Snow Event II


stormtracker

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NAM has main shield of snow exiting the DC area around hour 21 but leaves flurries/light snow around. At that point, we are around 6 inches. Then at hour 25, brings in light/moderate snow on back-end, and we get up to 7-9 inches before it is done, around hour 30 or so. Obviously overdone with snow totals but supports 2-4 in cities.

 

I do like that it appears to keep us in at least some light snow/flurries throughout the day tomorrow.  That might at least keep it looking pretty (Bob Chill calls this "snow TV", appropriately).  GFS is similar in that regard I believe.  I'm hopeful for something like what I got on March 25 last year, maybe something more if we're lucky.  But this time, actually have it stick around through the day (the event last year was almost gone by the end of the day, but was still nice!).

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HRRR is just getting into range of the onset of the storm. It looks weak, disconnecting the head from the gulf moisture feed just before it reaches us and thus disrupting the QPF for us. I can only assume the next few hours of HRRR would continue to show very little accumulation for us.

I'm beginning to fear the chaos isn't so random.

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I'm done.   I'm moving this sh*t to banter and cracking heads.  I can't take this anymore.  I'm about to go on full tilt.

 

Stay on topic..that goes for myself too....

 

Actually, in all seriousness, is there going to be a "storm mode" for this one?  I don't think there was for the March 3 event, which kind of surprised me.

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Less than 12 hours from onset. This thread should be locked. Time to let the chips fall. The range of outcome is tightly packed in the envelope. Nothing has changed overall for 24 hours

 

This thread is a disaster.   It's locked.   Head to the obs thread and folks, keep it on topic and post the correct information.  If you see your posts disappear, that's a warning.

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More "on topic", the NAM isn't quite as crazy with the second low associated with the ULL.  No surprise, I'm sure.  It does get some precip here, surface temps are close/marginal.  850s, not sure, for some reason those plots are lagging behind the surface ones.  But at 60-h, they're above freezing at 850.

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So...I'm going to backpedel. 12z HRRR isn't showing what I was seeing anymore. The 12z is very different from the 9z and 10z runs (11z was never available), and looks like a robust storm.

 

I think I'm hitting the limit of the model's accuracy - a 15 hr model at 14-15hr...accuracy probably suffers.

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NAM ditching the end of run garbage

NOi surprise.  It's soundings also make me think we might again see funny looking flakes rather than nice big dendritic aggregates.  Theres a pretty deep layer with temps warmer than -10C way up past 700mb.  I'll be interested in hearing obs to see if I'm correct or blowing smoke. 

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This thread is a disaster.   It's locked.   Head to the obs thread and folks, keep it on topic and post the correct information.  If you see your posts disappear, that's a warning.

 

 

I get sick of the "it looks bad for us" comments-- "WE" as in this forum covers a large area. It's all out IMBY. 

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NOi surprise. It's soundings also make me think we might again see funny looking flakes rather than nice big dendritic aggregates. Theres a pretty deep layer with temps warmer than -10C way up past 700mb. I'll be interested in hearing obs to see if I'm correct or blowing smoke.

I haven't looked close but based just on Mar 3 my guess is you're right.
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I get sick of the "it looks bad for us" comments-- "WE" as in this forum covers a large area. It's all out IMBY. 

 

It's always been like that.  The more things change...

 

On a different topic, Huff, with this anomalous snow event for mid-March, I've been meaning to ask something.  I'm not as familiar with central/SW/SE Virginia climo (e.g., Richmond area, Lynchburg, etc.), but assuming this is on the order of ~4" for you (and many others), would this be about the latest such event there?  I'd have to think it's on that "latest" list somewhere, it surely would be for the DC metro.  Just thinking in a historical sort of context, that's partly why this event is so interesting.

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