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December 17th Clipper Discussion


ORH_wxman

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  On 12/17/2013 at 3:39 PM, CoastalWx said:

A little tweak to the euro, a little tweak to the GFS. In the end...that is what you do.

 

 

I always say the best climo if you don't have time to look at any details is to go 70% Euro 30% GFS....that usually the closest to reality.

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  On 12/17/2013 at 3:41 PM, ORH_wxman said:

I always say the best climo if you don't have time to look at any details is to go 70% Euro 30% GFS....that usually the closest to reality.

 

 

  On 12/17/2013 at 3:42 PM, weathafella said:

3-6 for most.

 

Yeah pretty much. Maybe the GFS is right for a weenie band over central MA and NE MA.

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...WINTER STORM WARNING IN EFFECT UNTIL 1 AM EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 1 AM EST
WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* LOCATIONS...CENTRAL AND NORTHEAST MASSACHUSETTS AND SOUTHERN NEW
HAMPSHIRE...INCLUDING THE CITIES AND METRO-AREAS OF WORCESTER...
LAWRENCE...LOWELL...NASHUA...AND MANCHESTER.

* HAZARD TYPES...SNOW...HEAVY AT TIMES.

* ACCUMULATIONS...SNOW ACCUMULATION OF 4 TO 8 INCHES.

* TIMING...LIGHT SNOW HAS BEGUN ACROSS THE REGION. SNOW IS EXPECT
TO INTENSIFY TOWARDS 4 PM AND CONTINUE TO ROUGHLY AROUND 10 PM
BEFORE DIMINISHING. MUCH OF THE ACCUMULATION WILL OCCUR DURING
THIS WINDOW...BUT MAY FALL IN AS LITTLE AS THREE HOURS. SNOWFALL
RATES AT OR EXCEEDING 1-INCH WILL BE POSSIBLE DURING THE 4 PM TO
10 PM TIMEFRAME.


* IMPACTS...SNOW...HEAVY AT TIMES...WILL RESULT IN QUICK
ACCUMULATING SNOW MAKING FOR HAZARDOUS DRIVING CONDITIONS...
ESPECIALLY FOR THIS EVENINGS COMMUTE. VISIBILITIES WILL BE DOWN
TO ONE QUARTER OF A MILE OR LESS AT TIMES...ESPECIALLY WITH
HEAVY SNOW.

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  On 12/17/2013 at 3:59 PM, forkyfork said:

disagree with that warning

 

 

Yeah seems a bit bullish for the situation...but some areas will probably verifiy...just not sure 50% of the warning area will to justify the warning.

 

You can maybe justify the warning due to the timing of the worst being the PM rush hour...but if that is the case, the warnings should probably not be defined by amounts but by impact.

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  On 12/17/2013 at 3:41 PM, Logan11 said:

I'm pleased so far today. several decent bursts of moderate snow, lighter lull now. 1.5" down and 2 degrees. I was surprised that we got so cold here today..absolutely decoupled and dropped to -18.

Congrats Rick that's what separates this from other SWFE 2000s winters. Leon
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  On 12/17/2013 at 3:36 PM, ORH_wxman said:

That's not really true. I think it had one run where it only gave about 2" of snow to eastern areas...but its been pretty consistent with this being an advisory type snow...literally going back maybe 6-7 days now. It has sharpened the 2nd shortwave on successive runs but it never waivered from the idea that this system would be primarily a front-running deal.

 

Go back to Sunday's 0z run.  It had a weak POS strung out low passing outside the Cape late today.   By then the GFS and NAM had a low tracking right over the Cape.

 

HRRR almost smokes the Cape later today but it may be too warm.

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  On 12/17/2013 at 4:07 PM, ORH_wxman said:

Yeah seems a bit bullish for the situation...but some areas will probably verifiy...just not sure 50% of the warning area will to justify the warning.

 

You can maybe justify the warning due to the timing of the worst being the PM rush hour...but if that is the case, the warnings should probably not be defined by amounts but by impact.

 

 

Maybe a little gun shy from that last rush hour disaster?

 

I'm not a big fan of wasting the "impact" bullets so early in the season. Eventually it starts to fall on deaf ears.

 

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