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Let's Start the Winter Off with a Bang


DaculaWeather

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Wow ok. Thanks for the detailed post. When a system comes through at -5 sigma, you know it's gonna have surprises! I bet the models won't fully capture all of its potential. Certainly seems that wNC is in the crosshairs as the main 5h center goes directly overhead. Should be fairly steep lapse rates as well. Thunder?

Sent from my steam-powered printing press.

 

 

Beat me to it ha!  Was just thinking about this.  Get that deformation zone to form over us and move east and I would say that you are right on the money HT.  Gonna be a big surprise up here for us WNC folks I believe.  Its odd to be tracking something that continues to trend better and wetter ha.

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First DT snow map of the 2014-2015 season... Let the games begin. Glad to see he's fixed Roanoke's location this year. We were 40 miles SW of where we should've been on last year's maps.

 

10384362_767743919939535_740660745578511

 

 Good luck to you mountain guys/gals. Waycross is the Rodney Dangerfield of cities. It gets zero respect. Even DT, who extended his map south quite a ways here, unknowingly cut his southern boundary literally within a handful of miles to its north lmao! So, we'll never know if Waycross is going to get flurries.

 

 Amazingly enough, Savannah received snow flurries a few years ago in November!

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If the band forms early, we will be in business ! I expect flurries atleast, with coating on grass a miracle! I just want to say I saw the earliest flakes on record here!

Oh I'd love it Mack, but this just isn't a good set up for upstate. You'll have a slightly better shot than me, being further east, but that dratted dry nose is ever present on every model run. The escarpment always interferes in the winter. This is one time where I can't be terribly disappointed though, just because of how early it is. Maybe even Ceasars Head might see a little though.

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Dude stop posting this crap, everyone else has much better support then you.  Take those plumes to the banter thread.

 

:weenie:  True  though. But ay he is still learning each year that goes by another Brick joins the club.

Hey guys here is the snow plume models for Orangeburg... I might have a shot at .07 inches, still better than nothing...

attachicon.gifimage.jpg

1 out of many. The shot of you seeing snow is very very very slim. Maybe rain followed by a break to couple strong gust of wind followed by cloudy patch with flurries followed by clear sky.

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RAH sounding pretty bullish for the triad, this was from this afternoon too:

FRIDAY NIGHT: POTENT SHORTWAVE DIVING SOUTHEAST OVER THE SOUTHERN

OHIO/TN VALLEY FRIDAY EVENING WILL CLOSE OFF AND WILL MOVE ACROSS

THE SOUTHERN APPALACHIANS AND INVOF THE UPSTATE SC/SOUTHWEST NC BY

DAYBREAK SATURDAY. INTENSE SFC CYCLOGENESIS NEAR THE NC/SC COAST

WILL ENSUE BETWEEN 00 TO 12Z SATURDAY...ON THE LEADING EDGE OF A

STRONG POLAR FRONT ADVANCING EASTWARD ACROSS THE AREA. CONDITIONS

WILL DETERIORATE RAPIDLY FRIDAY EVENING-FRIDAY NIGHT...WITH DEEP F-

GEN RESPONSE IN A DEVELOPING DEFORMATION BAND PROGGED TO SET UP

ACROSS THE WESTERN PIEDMONT...THOUGH THIS WILL ULTIMATELY DEPEND ON

THE EXACT LOW PRESSURE TRACK AND LOCATION.

WIDESPREAD RAIN LOOKS LIKE IT WILL HOLD OFF LONG ENOUGH TO KEEP MOST

OF THE LITTLE TRICK TREATERS DRY...ALTHOUGH RESIDENTS IN THE TRIAD

MAY HAVE TO CONTEND WITH A LITTLE LIGHT RAIN IF THEY STAY OUT MUCH

AFTER 9PM. BY DAYBREAK...EXPECT CATEGORICAL POPS ACROSS MUCH OF THE

PIEDMONT...SPREADING EASTWARD INTO THE COASTAL PLAIN BY LATE

MORNING. COLD MID-LEVEL TEMPERATURES ATOP STRONG LOW-LEVEL CAA WILL

SUPPORT A MIXTURE OF RAIN AND SNOW ACROSS THE FAR WESTERN ZONES

AROUND DAYBREAK SATURDAY...ALTHOUGH ANY CONVECTIVE ELEMENTS

UNDERNEATH THE STEEP MID-LEVEL RATES WITHIN THE DEFORMATION BAND

COULD SUPPORT A DUSTING ON ELEVATED SURFACES. TRAVEL PROBLEMS ARE

HIGHLY UNLIKELY GIVEN THE WARM GROUND TEMPS. LOWS IN THE MID/UPPER

30S NW TO MID 40S SE. -CBL

FOR SAT/SAT NIGHT: SEVERAL ISSUES TO CONCERN OURSELVES WITH...

INCLUDING THE POTENTIAL FOR LIGHT FROZEN PRECIP IN THE WRN

PIEDMONT... BRISK WINDS... AND A POSSIBLE KILLING FREEZE THIS

WEEKEND.

OVERVIEW: HIGHLY ANOMALOUS (HEIGHTS DROPPING TO AROUND 4 STANDARD

DEVIATIONS BELOW NORMAL) MID LEVEL LOW PRESSURE OVER INDIANA LATE

FRI IS STILL EXPECTED TO INTENSIFY AS IT DROPS SOUTHEAST... TO NEAR

AVL BY SAT MORNING... CROSSING SC SAT BEFORE SWINGING NE OFF THE NC

COAST SAT NIGHT. THE GREATEST HEIGHT FALLS WILL BE OVER SC (NEARLY

180 M IN 12 HRS) BUT STILL IMPRESSIVE AT 100-150 M OVER CENTRAL/SRN

NC. AT THE SURFACE... WEAKER PRIMARY LOW PRESSURE JUST OFF THE NC

COAST FRI NIGHT WILL MOVE NE AS SECONDARY LOW PRESSURE FORMS OVER

SOUTH CENTRAL NC... TRACKING EAST WHILE DEEPENING OVER THE SRN NC

COAST THROUGH SAT MORNING... THEN STRENGTHENING JUST OFF THE OUTER

BANKS THROUGH LATE SAT.

PTYPE AND THUNDER: WHILE THE MODELS HAVE BEEN TRENDING WARMER (MORE

REASONABLY SO) WITH THE SKIN AND BOUNDARY LAYER TEMPS... LATEST

FORECAST SOUNDINGS DEPICT THE FREEZING LEVEL IN THE TRIAD FALLING

BELOW 1000 FT SAT MORNING... AS THE STRENGTHENING COASTAL LOW

INTENSIFIES LOW LEVEL COLD AIR ADVECTION INTO OUR FAR NRN AND WRN

CWA. AN EXPECTED SATURATED NEAR-FREEZING ISOTHERMAL LAYER UP TO

AROUND 850 MB IS TOPPED BY STEEP LAPSE RATES OF 6.5-7.0 C/KM AND

PLENTY OF MOISTURE UP THROUGH -25C... WHICH IN CONJUNCTION WITH

PARTIAL THICKNESSES SUPPORTS SOME SNOW MIXING IN WITH RAIN OVER THE

WRN PIEDMONT LATE FRI NIGHT THROUGH SAT MORNING. TRAVEL PROBLEMS ARE

HIGHLY UNLIKELY GIVEN THE WARM GROUND TEMPS... HOWEVER A LIGHT

DUSTING ON ELEVATED SURFACES IS CERTAINLY POSSIBLE. CONSIDERING HOW

INTENSE THIS SYSTEM IS EXPECTED TO BECOME WITH WHAT SHOULD BE AN

INCREDIBLE AGEOSTROPHIC RESPONSE TO THE HEIGHT FALLS ALOFT AND

DEEPENING SURFACE LOW... OTHERWISE ATYPICAL LATE-OCTOBER WEATHER

INCLUDING A POTENTIAL LIGHT DUSTING OF SNOW ON ELEVATED SURFACE

CANNOT BE RULED OUT. REGARDING THUNDER CHANCES... PREDICTED MUCAPE

WILL REMAIN LOW AND CONFINED LARGELY TO THE COASTAL AREAS... HOWEVER

THE NAM DOES INDICATE 100-200 J/KG OVER THE SW/SRN CWA FRI NIGHT...

AND WITH EXPECTED STEEP LAPSE RATES ALOFT AND STRONG ASCENT THROUGH

SAT MORNING COUPLED WITH 40-50 KT DEEP LAYER SHEAR... A FEW

LIGHTNING STRIKES MAY OCCUR... BUT SHOULD BE TOO ISOLATED TO INCLUDE

IN THE FORECAST AT THIS TIME. IT`S WORTH NOTING THAT ANY CONVECTIVE

ELEMENTS THAT MAY DEVELOP AND ANY RESULTING HEAVIER PRECIP RATES

COULD RAISE THE RISK OF A DUSTING OF SNOW ON ELEVATED SURFACES.

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 Good luck to you mountain guys/gals. Waycross is the Rodney Dangerfield of cities. It gets zero respect. Even DT, who extended his map south quite a ways here, unknowingly cut his southern boundary literally within a handful of miles to its north lmao! So, we'll never know if Waycross is going to get flurries.

 

 Amazingly enough, Savannah received snow flurries a few years ago in November!

 

And parts of the Charleston area actually got measurable snow two days before Thanksgiving. Some places near 1".

 

This storm will be fascinating because of how well it could perform outside the mountains.

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Good luck to you mountain guys/gals. Waycross is the Rodney Dangerfield of cities. It gets zero respect. Even DT, who extended his map south quite a ways here, unknowingly cut his southern boundary literally within a handful of miles to its north lmao! So, we'll never know if Waycross is going to get flurries.

Amazingly enough, Savannah received snow flurries a few years ago in November!

You can immediately spot the forecasters who never lived near the mountains. I would be shocked if these low balled forecasts in the mountains panned out. MRX is gunning for over a foot along the TN and NC border.

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GFS would say zero snow outside of the mtns

 

The funny thing is the GFS is starting to line up with the NAM as far as the spine of the apps is concerned. The NAM has a better resolution so it picks up on the microclimates better, or at least the extreme elevation.

 

I wish I could draw a diagram, but imagine that most of the energy of this low (formerly Hurricane Ana) is aloft at 850mb or above. That's about 5000' up. These mountains jut out into the typical 850mb layer for everyone else and beyond, so all of that energy and moisture is going to slam into those mountains. FWIW the 00z NAM is now giving the highest peaks 12-14" and even that doesn't have the resolution to nail down the 6500' peaks which are going to likely get a few more inches than that.

 

The point location for Mt. Leconte is forecasting 10" - 18":

http://forecast.weather.gov/MapClick.php?lon=-83.43409&lat=35.65140#.VFMQ8Mn4ofw

 

That to me is a safe bet for the highest peaks.

 

I hope you guys cash out on something, but outside of Asheville and Boone (and places like that) you may not have much luck.

 

Getting to the top of Leconte on Saturday isn't going to be a walk in the park, either.

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Those in the Midlands, things still don't look very promising outside a possible clap of thunder and graupel as the ULL passes over if the modeled track is right.  Don't believe the "snowfall" maps you guys are seeing!

 

18z GEFS Plumes for KCAE has absolutely all but one member without the white stuff.  That one member is nothing either btw.

Columbia_SC_ptype.png

 

The SREF plumes literally say: 2.25% chance of snow.  Only one member has anything.

The CMC is all rain with a brief sleet deal in the far Northern counties of SC from 12z.

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It won't be out until like 3 AM since DST hasn't ended yet.

 

I haven't yet renewed my Weatherbell subscription, but I'll probably purchase it in December, so I'll be up for the Euro most nights (I'm usually up until 2 AM or 3 AM, anyways).

Oh, interesting. The americanwx site says it's out to 72 hours already.

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Oh, interesting. The americanwx site says it's out to 72 hours already.

 

Yeah, I was just thinking that it won't get out past 144 hours until closer to 3 AM (and, let's face it, the Euro is best for fantasy storms in the post-hr 144 period), though I guess since we're at such close range, it's closer to 2 AM.

 

Anyways, from the free stuff, it looks like the ULL is stronger and a little SW at hr 48 compared to last night's 00z run (I can't compare it to today's 12z run because it only has 24-hr panels).  The ULL goes from southern Indiana at hr 24 to 100+ miles SW of ILM at hr 48.  What happens in between is a mystery.  FWIW, at hr 48, the 0C 850 mb line runs from about Burlington down to east of Charlotte.  I know thicknesses are usually best for ULLs, but I think those are only available on WeatherBell, Accuweather Pro, etc.

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