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November 2010


FoothillsNC

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Well so much for a good soaking rain over much of the area. Mostly under a third of in inch except for a strip in the upslope areas. Am afraid this will be the story of this fall and the winter. Expect to be in exceptional drought by spring here. Conditions possibly much worse than 2007 if the LaNina stays in place.

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Here comes the UL forcing... Wind is 10 fold compared to what to what it was this afternoon, still not much, but 15 mph is better than nothing, Banded line working its way through the coastal plain (eyewall) heading towards the coast. I see no signs of discrete development and organized cells to make me think this is no more than a passing squall line, but given this svr season, even a thunderstorm is a win at this point.

valid 11:18pm EST

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mcd2049.gif

MESOSCALE DISCUSSION 2049

NWS STORM PREDICTION CENTER NORMAN OK

1027 PM CST TUE NOV 16 2010

AREAS AFFECTED...PORTIONS CENTRAL-ERN SC...CENTRAL-ERN

NC...CENTRAL-ERN VA...SRN MD.

CONCERNING...SEVERE THUNDERSTORM WATCH 741...

VALID 170427Z - 170630Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 741

CONTINUES.

SVR POTENTIAL -- PRIMARILY IN FORM OF DAMAGING GUSTS -- WILL

CONTINUE OVER ERN PORTIONS WW...AND MAY SHIFT SOMEWHAT E OR NE OF WW

INTO LOWER POTOMAC REGION AND COASTAL PLAIN SWD TO SC. ADDITIONAL

WW MAY BE REQUIRED.

SFC ANALYSIS INDICATES COLD FRONT CONTINUING TO MOVE EWD ACROSS

W-CENTRAL PORTIONS SC/NC AND FROM SWRN INTO CENTRAL VA...IMMEDIATELY

BEHIND LAST BANDS OF CONVECTION IN THESE AREAS. TSTMS HAVE PRODUCED

SEVERAL REPORTS OF TREES DOWN DURING PAST 2 HOURS. MEASURED GUSTS

UP TO 58 KT ALSO WERE REPORTED IN APPOMATTOX COUNTY VA AT

331Z...WITH BOWING SEGMENT NOW MOVING NEWD ABOUT 50 KT TOWARD TIDAL

POTOMAC REGION. AIR MASS AHEAD OF TSTM BANDS HAS BEEN DESTABILIZING

TO AT LEAST MRGL LEVELS FOR CONTINUE CONVECTIVE POTENTIAL...AS

LOW-LEVEL THETAE ADVECTION OFFSETS SFC DIABATIC COOLING...WHICH ALSO

IS KEEPING LIFTED PARCELS EITHER SFC-BASED OR NEARLY SO IN IMMEDIATE

INFLOW REGION. MODIFIED RAOBS AND FCST SOUNDINGS SUGGEST ONLY

200-500 J/KG MLCAPE IN NARROW STRIP FROM CENTRAL NC TO CENTRAL/ERN

VA. 45-55 KT EFFECTIVE SHEAR MAGNITUDE SHOULD BE MAINTAINED ALONG

CORRESPONDING INSTABILITY AXIS. WHILE BUOYANCY GENERALLY WILL

DIMINISH WITH TIME AND WITH EWD EXTENT...THIS PROCESS WILL BE

GRADUAL ENOUGH THAT SVR POTENTIAL MAY EXTEND SOMEWHAT PAST CURRENT

ERN BOUNDS OF WW.

PRIND SVR POTENTIAL WILL CONTINUE TO CLEAR OUT OF WW FROM W-E BEHIND

COLD FRONT AS LOW-LEVEL FLOW VEERS...AND AS BOUNDARY LAYER AIR MASS

STABILIZES DUE TO COMBINATION OF CAA AND DIABATIC SFC COOLING.

..EDWARDS.. 11/17/2010

ATTN...WFO...AKQ...MHX...LWX...RAH...ILM...RNK...CAE...

LAT...LON 33238181 35167990 36677932 37557849 38277795 38877656

38297604 37137648 35307800 33827943 33508062 33238181

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slp (990mb) is close to Lake Erie now, not a great set-up for the coastal plain as we would like it crossing the TN-IN boarder about now... Still watching the area of greatest helicity and bulk shear associated with the cold front working east, and an area of greatest instab just off JAX, slowly working west. If I here thunder, this is a win!!! Sad, but take what we can get this time of year and season...

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Yeah, I know. You have to be careful about severe weather in NC this time of year, though. Seems we have a tornado right before Thanksgiving often in these parts.

That tornado watch will be cancelled shortly for Wake county. As soon as the convective line pushes through ,its over.

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So far, around .13", which after seeing yesterday's runs, I began to doubt much here. I knew I'd be on the eastern edge of the first round, but expected a steady pouring right now, so far I got grazed to the east...sigh. Another potential good rain here down the tubes. .....but I wouldn't be surprised to see that really develop to my east, with severe in the piedmont to coast.

and thats pecisely what happened....hardly more than a trace of rain this event here. Looks like the squall line began developing just as it exited this area, again. Seen this so many times already this year, and of course the training has occurred several times to my immediate west. The Summer convection missed me to the east all Summer, the west, north and even south around GSP of all places :wacko: I dont know when it will really rain here again, it takes a miracle I think. I'm around 30" to 31" for the year, which is another extreme drought year unless December floods out...this time its very local, stretching from northern Spartanburg to right around my location to possibly central Gaston Co.

post-38-0-71110300-1289972304.jpg

post-38-0-16819100-1289972328.jpg

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and thats pecisely what happened....hardly more than a trace of rain this event here.  Looks like the squall line began developing just as it exited this area, again. Seen this so many times already this year, and of course the training has occurred several times to my immediate west. The Summer convection missed me to the east all Summer, the west, north and even south around GSP of all places :wacko: I dont know when it will really rain here again, it takes a  miracle I think.  I'm around 30" to 31" for the year, which is another extreme drought year unless December floods out...this time its very local, stretching from northern Spartanburg to right around my location to possibly central Gaston Co.

Yeah.  I was really hoping to get in on SOMETHING as well to come through here, but as luck would have it, not even so much as a heavy passing shower arrived.  As you stated, December might be our last resort for having hope to get some much beneficial rainfall to occur.  I'm betting that it's going to take a storm system that doesn't gyp local areas like ours and we would be fine.  I know that for my location (Western Gaston Co. near 321 going south) the rain will fall heavily all around me but never for my area.    :thumbsdown:   It really saddens me because the training of the rain and storms looked kinda similar to the previous event (I noticed some similarity with cells hitting certain areas).  Oh well.  At least we can look forward to a stormier pattern to set up sometime soon.  

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and thats pecisely what happened....hardly more than a trace of rain this event here. Looks like the squall line began developing just as it exited this area, again. Seen this so many times already this year, and of course the training has occurred several times to my immediate west. The Summer convection missed me to the east all Summer, the west, north and even south around GSP of all places :wacko: I dont know when it will really rain here again, it takes a miracle I think. I'm around 30" to 31" for the year, which is another extreme drought year unless December floods out...this time its very local, stretching from northern Spartanburg to right around my location to possibly central Gaston Co.

post-38-0-71110300-1289972304.jpg

post-38-0-16819100-1289972328.jpg

It does seem this area has been very unlucky in terms of rain this year. A whopping 0.03" at my place for the event...

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I have a hunch this might be one of the occasions where the GFS could outperform the Euro in the medium range. Obviously there is no guarantee that this is the case this time, but to me, this looks right in the wheelhouse of one of the Euro's biases. Check out the two images below, valid at 0z next Friday...Euro is first, GFS is second.

euroq.gif

gfst.gif

This could very well be a case where the Euro is holding too much energy back into the desert southwest, and thus, the trough progresses east much more slowly than on the GFS.

test8k.gif

If you look at the day 8-10 mean, both the models have a weakness that extends back into the eastern Pacific, so the Euro idea might have merit. However, this is one case where I would side mroe with the GFS. FWIW, the 0z Canadian is more in line with the GFS timing as well.

canadian.gif

I get in to some of this in my video for today...

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Accu-sux weather forecasting is horrible. I only look at it to get a good laugh. I can't remember the last time the forecast accuweather had for my area was correct.

They are basing the long range on the GFS, no one can do that as you know. I don't like them anyway.

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Snow around the end of the month wouldn't surprise me. Anytime after the 28th the cold air will be wide open down this way. I wouldn't throw out that inAccuwx completely. I don't find them correct very often but they may be onto something. One thing they have been somewhat-correct about in my area is long-term winter weather.

BTW: is my avatar showing? Just wondering.

Edit: I am basing this off the fact the GFS is being VERY consistant with cold air and generally consistant with timing of the Thanksgiving-ish system and the one after it.

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Snow around the end of the month wouldn't surprise me. Anytime after the 28th the cold air will be wide open down this way. I wouldn't throw out that inAccuwx completely. I don't find them correct very often but they may be onto something. One thing they have been somewhat-correct about in my area is long-term winter weather.

BTW: is my avatar showing? Just wondering.

Edit: I am basing this off the fact the GFS is being VERY consistant with cold air and generally consistant with timing of the Thanksgiving-ish system and the one after it.

No avatar, just a red X

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Ended up with 0.77" from the mini rain event, even after the rock um sock em thunderstorms that rolled through last night (around 7:30pm). Went to open my door to check it out and wham, it blew the door from my hand and against the frame! Needless to say I was enjoying the high wind (even though it lasted for 10 minutes at best). Now all focus is toward next week. Its funny how we get upset and bored with beautiful wx for long stretches on end but man I want some snow!

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