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The March 25-March 32 HECS potential


Ji

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Since the EURO has been right the past few "events" here... I am going to ride the EURO nice and tight.

I'm not going to dispute that, but location factors in. There is a local observer here with his own website, weather station info, links, etc. He recorded 0.38 precip yesterday. I had nearly two inches of snow and almost 1/2 inch of sleet. Those two combined make me think we had quite a bit more precip than what the Euro showed. Same with the March 6 snow. 11.5 measured snow with a 6 hour period of light to moderate snow after that was probably, almost definitely over an inch of precip. I don't remember the Euro giving that much precip here for that event either. Maybe I'm wrong, but I don't think the Euro is as perfect as its sometimes made out to be.

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The 12z Euro seems to have had it very cold 5 days out as well. 

 

 

All month, we have been talking about how cold it's suppose to be/get... No doubt, it's been chilly, especially compared to last year's March sauna. But by in large, climo and the warm sun have been winning.  Not saying a big storm won't draw down some nice cold air, but think we should all give up on this talk of bigtime cold air coming, cause we've been talking about it for a month and it's happen like a total of one day. 

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I think the cold air will come -- just look at all the model guidance pointing to it. The problem is if it'll be enough for the storm on the 25th.

 

This is different from the March 5-6 "Noquester" in that it seems at least some cold air will already be in place. A couple of weeks ago, we had to rely on evaporative cooling and the dynamics for cold air, which never really overcame the warm ground temperatures.

 

We'd also have to rely on the big "punch" at the beginning, because, according to the 18z GFS, not much cold air would swing around behind the Low.

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All month, we have been talking about how cold it's suppose to be/get... No doubt, it's been chilly, especially compared to last year's March sauna. But by in large, climo and the warm sun have been winning.  Not saying a big storm won't draw down some nice cold air, but think we should all give up on this talk of bigtime cold air coming, cause we've been talking about it for a month and it's happen like a total of one day. 

DCA has had 7 days of -5 or greater depatures...that's cold, relative to March climo

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DCA has had 7 days of -5 or greater depatures...that's cold, relative to March climo

Yesterday was supposedly our coldest high this late since 2002. I haven't looked myself but one if the TV mets posted about it.

But the gist is still that cold now isn't all that cold. Unless we get a wet gray day we are not getting much below the mid-to-upper 40s in the city.

We are quickly adding numbers to climo. If people are waiting for brutal cold it's going to be at least 9 mo or so.

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Yesterday was supposedly our coldest high this late since 2002. I haven't looked myself but one if the TV mets posted about it.

But the gist is still that cold now isn't all that cold. Unless we get a wet gray day we are not getting much below the mid-to-upper 40s in the city.

We are quickly adding numbers to climo. If people are waiting for brutal cold it's going to be at least 9 mo or so.

For the snow obsessed the question for next week, assuming there is a storm, would be "is it cold enough"....brutal cold is usually not a factor in our snowfalls. Temp climo is certainly on the incline, but high 20s/low 30s is not impossible with the right set up.

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For the snow obsessed the question for next week, assuming there is a storm, would be "is it cold enough"....brutal cold is usually not a factor in our snowfalls. Temp climo is certainly on the incline, but high 20s/low 30s is not impossible with the right set up.

 

I wasn't necessarily talking about you using the term.. just everyone acts like super duper cold is coming when it's not really. All the locals are like OMG so cold look at those highs near 50.

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Euro folds to GFS, then?

In a way but not really. It's the euro's first big jump from run to run. Very flat now. Vort doesn't dig as much and is nothing eye popping. Pitt is the jackpot and that is never a good thing for us. Whole system gets squashed and moves almost due w-e over eastern 3rd of the conus and goes right off the coast.

The biggest similarity between the euro/gfs is a messy and disconnected precip shield. Waa to the south and precip from the Ull aren't working together. Biggest difference is the northern extent in the mw/ohv and the euro doesn't really have much redevelopment.

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We had another system similar to this a while back.  The dual lows, one west, one east of the Apps.  I just can't remember exactly when that was.

 

From my limited Euro access, it sure seems it moved toward the GFS.  I haven't checked, but wonder what the famous Richmond met is saying about this.  He was blasting the GFS in posts over the past couple of days.  If it's going to evolve with a midwest component, then we need to hope the initial low is about Lexington, Ky.  That way we'd get good precip and take our chances with temps.  It looks like the big east coast low idea is becoming less and less likely.

 

Regardless, I hope this is the last threat.  It's almost April.  Time to move on.  Only 7 months until November.

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All models are now a mess. Euro included. The storm has evolved into an unconsolidated mess with no big dominant lp.

Still not resolved of course but the perfect storm needed for a march snow is gone.

The 00z GGEM was still good for some of this area. Would likely be a snow to rain back to snow event for much of the Mid-Atlantic. Hits the VA/MD hills NW of DC pretty hard. Hr 144

 

00zggem850mbTSLPp06144.gif

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