Friday, March 10, 2017

A Big, Vexing Friday Afternoon Distraction -OR- MARCH MILLER TIME??

**This entry was posted March 10th, 2017.**

I really don't have time to deal with this today, but here we go...

The operational 12Z 3/10/2017 European (ECWMF) snow output for portions of the Mid-Atlantic region through Tuesday night (3/14/2017).

Yes, these amounts are in inches (see legend). Click on image for larger version.

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The operational 12Z 3/10/2017 GFS for the NECONUS showing MSLP and precipitation type and intensity for the period March 13 - 14, 2017.

This animated gif is from this morning's CWG entry -- the comment section of which is in a manic frenzy.
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From this morning's WPC/NCEP/NWS discussion:

THE SETUP IS NOT YOUR CLASSIC MILLER TYPE-A OR TYPE-B STORM BUT SEEMINGLY A COMBINATION OF THE TWO -- THERE IS FORECAST TO BE AN ALREADY-DEFINED SURFACE LOW OFF THE GA COAST LATE MONDAY (VERY MILLER TYPE-A) IN ADDITION TO AN UPSTREAM CLIPPER MOVING THROUGH THE OHIO VALLEY (LIKE A MILLER TYPE-B).

HOW THE UPPER TROUGH SWINGS THROUGH THE MIDWEST WILL DETERMINE HOW THE DOMINANT LOW TRACKS -- IT COULD BE TUGGED FARTHER WEST BY A STRONGLY DIGGING TROUGH OR BE LEFT TO SWING FARTHER EAST. THIS IS ONE OF THOSE SITUATIONS WHERE THE SPREAD OF POSSIBILITIES IS NECESSARILY LARGE, ENCOMPASSING NEARLY ALL SCENARIOS FROM A LIGHT/MINOR EVENT TO AN OUTRIGHT BLIZZARD, DEPENDING ON YOUR LOCATION.

Yes, what we have here is a possible combination "Miller A" and "Miller B" storm -- see here for more information.

Obviously, more on this to follow in the coming days, especially if it "verifies."

--Regulus

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