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December 14/15 winter storm threat part II


Typhoon Tip

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It is just hard to do when you're only looking at like 3 hours of +FZRA. 

The key is to have lower DPs continuously advecting in from the n or ne, which counteracts the latent heat release from the intense precipitation.....that is what enabled the 12/08 event to accrete so efficiently in the face of such prolific rates.

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The key is to have lower DPs continuously advecting in from the n or ne, which counteracts the latent heat release of the intense precipitation.....that is what enabled the 12/08 event to accrete so efficiently in the face of such prolific rates.

 

Absolutely - but I also think about 1/2 the total precip was wasted and never was able to accrete. 

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Euro rips after 03z in ern areas.  The IP line takes on a classic SWFE with it curved down from just SW of BDL to the CT coastline and then down by the islands at 06z. By 09z it's near the Pike or close to it. At this point it may be raining at BOS.

 

Any idea what it does for changeover HFD? I can't really tell on the 6 hour maps but it looks like pretty close to 6z we flip to pingers. 

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Euro rips after 03z in ern areas.  The IP line takes on a classic SWFE with it curved down from just SW of BDL to the CT coastline and then down by the islands at 06z. By 09z it's near the Pike or close to it. At this point it may be raining at BOS.

It is at this stage, that I would expect that IP line to begin to encounter increasing resistance, as climo would dictate.

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Absolutely - but I also think about 1/2 the total precip was wasted and never was able to accrete. 

Sure, it's not feasible to accrete at a 100" efficiency ratio in any event, much less one of this magnitude.

 

The point is that is was efficient enough to render it a historically crippling icing event.

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Euro rips after 03z in ern areas.  The IP line takes on a classic SWFE with it curved down from just SW of BDL to the CT coastline and then down by the islands at 06z. By 09z it's near the Pike or close to it. At this point it may be raining at BOS.

Shovel at 6Z, wet sidewalks at 15Z? Though euro keeps it pretty chilly here...low levels.

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Any idea what it does for changeover HFD? I can't really tell on the 6 hour maps but it looks like pretty close to 6z we flip to pingers. 

 

I will post the maps...keep in mind these are the critical thickness estimates..but it helps. Just let me get my legs under myself..lol. Busy here.

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eh really? i think your in a prime spot for naked twister with the CF tn? sure it may taint right at the end but we are going to rip 3z to 9z

I mean for a relatively large percentage of sne....n of the pike and outside of rt 128 still does well, but I think it may cost us an inch or two...

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I'm seeing a lot of 4-6" shading for my area here in RI, but I'm not believing it.  So I"m going with a conservative 2-4" and hoping I get pleasantly surprised.  Also, the NWS point and click forecast has me at a high of 45 on Sunday, which I don't believe either.  I'm thinking I'm gonna see a lot of sleet at my location as the cold battles the warm, and I would be VERY surprised if we get higher than 35 or 36 with all this cold air around.  I don't think the rain wins out as much as the sleet does...

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