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Feb 9th-? MW/GL/OV Threat


SpartyOn

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The CMC looked like it was going to explode too. THe EURO is close but no cigar... If the EURO shows this westerly track on Friday.. BOOK IT!

euro is still far out enough to discount. But yea, if inside of 120 it's still cutting, book it.

ukie is suppressed, ggem looks like a nonevent, nogaps suppressed(no surprise), jma :snowman:

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I hear ya there. In no way am I complaining and unsatisfied with how this winter has gone but eastern michigan ( might hit a foot today with this storm), eastern indiana most of ohio into western and central PA have yet to see a 12+ storm. Just about everywhere else has.

Haven't even seen a 5" storm in central OH.

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Here we go again.

Keep in mind a few things that will affect usability of any model in this pattern (as we JUST saw with the last storm):

GFS cold bias at this range, which can act to over-suppress storms at D4/D5+

GGEM progressive bias

Euro southwest energy bias (doesn't appear to be a problem in this scenario though).

Note the ridiculously pumped arctic high on the GEM and GFS, they were both forecasting in upwards of 1060 with the last one, it was some 8-10mb weaker in the end. Euro is still respectable, but more tamed. If the camp suddenly shifts to the Euro over the 24-36 hours, then its solution is good.

+PNA/+NAO with the PV far enough north is generally a good pattern for MW/OV storms anyways.

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Here we go again.

Keep in mind a few things that will affect usability of any model in this pattern (as we JUST saw with the last storm):

GFS cold bias at this range, which can act to over-suppress storms at D4/D5+

GGEM progressive bias

Euro southwest energy bias (doesn't appear to be a problem in this scenario though).

Note the ridiculously pumped arctic high on the GEM and GFS, they were both forecasting in upwards of 1060 with the last one, it was some 8-10mb weaker in the end. Euro is still respectable, but more tamed. If the camp suddenly shifts to the Euro over the 24-36 hours, then its solution is good.

+PNA/+NAO with the PV far enough north is generally a good pattern for MW/OV storms anyways.

Is there any reason why "the camp" wouldn't shift to the Euro here?

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If I remember correctly the euro had this current storm a bit further Se and the NW trend started. I see that with this one too. No block different pattern. the NW trend lives!

Euro had a MO Bootheel to Central Indiana track from 6 days out on that one, albeit it was weaker.

And as for the reasons for them NOT to shift to the Euro, yes, there are a few, and not the least of which is sampling and wave interaction.

We have an advantage this time around in that the wave in question is already over Alaska, so we are indeed getting some direct (if somewhat sparse) upper air and surface observation data sampling from it.

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Euro had a MO Bootheel to Central Indiana track from 6 days out on that one, albeit it was weaker.

And as for the reasons for them NOT to shift to the Euro, yes, there are a few, and not the least of which is sampling and wave interaction.

We have an advantage this time around in that the wave in question is already over Alaska, so we are indeed getting some direct (if somewhat sparse) upper air and surface observation data sampling from it.

Yea sparse is the word. Models haven't done very well with waves dropping out of canada for obvious reasons

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Euro had a MO Bootheel to Central Indiana track from 6 days out on that one, albeit it was weaker.

And as for the reasons for them NOT to shift to the Euro, yes, there are a few, and not the least of which is sampling and wave interaction.

We have an advantage this time around in that the wave in question is already over Alaska, so we are indeed getting some direct (if somewhat sparse) upper air and surface observation data sampling from it.

Where did this last stom end up tracking? Just curious to see how well the Euro did.

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Yea sparse is the word. Models haven't done very well with waves dropping out of canada for obvious reasons

This would be a bad track for DTW. In regards to a potential dry slot. Although ORD could do well. But at 100+ hrs and poor model consistency this isnt a lock by any means. This is almost weird...Wasnt last Thursday/Friday 0z runs when the EURO locked on to the Blizzard. ?

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