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July 1-8, 2012 Heat & Storms


Herb@MAWS

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with the caveat of not knowing what's going on in wv i don't think their upgrade to 30% wind was needed in the northern areas particularly. i'd be really surprised if the stuff on the north end is actually severe right now. the bow on the north end of wv activity might be worth watching to see if it progresses more east.

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Certainly nothing like friday night but it's conceivable that the storms can maintain with those parameters.

Sustain yes, as for winds 1200 cape gets you max 40 mph downdraft using the approximation technique. We're also loosing SBCAPE by the minute as longwave radiation kicks the surface temperatures down at their highest rate this time of night (clear skies now too).

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Sustain yes, as for winds 1200 cape gets you max 40 mph downdraft using the approximation technique. We're also loosing SBCAPE by the minute as longwave radiation kicks the surface temperatures down at their highest rate this time of night (clear skies now too).

Well 40mph can certainly pull power crews off their assignments temporarily (not to mention heavy rain and lightning). Just stating that even non-severe storms can have a major impact given the current situation.

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LWX not really feeling it...

REGIONAL RADAR LOOP SHOWS A CLUSTER OF THUNDERSTORMS TRYING TO

ORGANIZE ACROSS CENTRAL/EASTERN OHIO THIS EVENING. LATEST RUNS OF

THE HRRR MODEL DO SHOW THIS CLUSTER OF STORMS MAKING IT INTO THE

CWFA AFTER MIDNIGHT. 00Z SOUNDING SHOWS CAPE AROUND 1000...BUT A

NICE MID LEVEL CAP IN PLACE. CAP BE ERODED WITH MID LEVEL

SHORTWAVE/COOLING WITH THE SYSTEM. ANY CONVECTION MAY END UP BEING

ELEVATED IF A SURFACE INVERSION SETS UP. INDIVIDUAL STORMS ALONG THE

LINE COULD END UP BEING SEVERE...WITH DAMAGING WIND GUSTS AND LARGE

HAIL.

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LWX not really feeling it...

REGIONAL RADAR LOOP SHOWS A CLUSTER OF THUNDERSTORMS TRYING TO

ORGANIZE ACROSS CENTRAL/EASTERN OHIO THIS EVENING. LATEST RUNS OF

THE HRRR MODEL DO SHOW THIS CLUSTER OF STORMS MAKING IT INTO THE

CWFA AFTER MIDNIGHT. 00Z SOUNDING SHOWS CAPE AROUND 1000...BUT A

NICE MID LEVEL CAP IN PLACE. CAP BE ERODED WITH MID LEVEL

SHORTWAVE/COOLING WITH THE SYSTEM. ANY CONVECTION MAY END UP BEING

ELEVATED IF A SURFACE INVERSION SETS UP. INDIVIDUAL STORMS ALONG THE

LINE COULD END UP BEING SEVERE...WITH DAMAGING WIND GUSTS AND LARGE

HAIL.

Sounds very reasonable.

That sounding is not great, but it is by no means horrible. With PWATS much closer to 1", updraft efficiency will be much greater.

And as I said above, even strong but not severe storms will have high impact on power restoration efforts.

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What about us guys down in SWVA? It's looking like some impressive storms are headed our way.

yeah and the stuff in c wv still looks decent too. but the dc area threat is pretty much done.

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Looks like the storms may do a Roanoke split. I can only see the radar as a stationary image right now so I'm sorta extrapolating.

barring dissipation, it'll be the blacksburg split with roanoke catching the southern end of it, or at the very least the southern end of the outflow.

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New to area but relatives say for last 10 years these 3-7+ day outages have been happeing about once a year, snow, rain, wind, hot, cold. In all the discussion I am not hearing what seems obvious to me. Your electric company does not have enough people on hand to fix the problem. I do hear "well it happens rarely" So what; that is no excuse. A major utility needs to be prepared for such an emergency with sufficient staffing especially since there is a recent track record for such damage and outages.

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New to area but relatives say for last 10 years these 3-7+ day outages have been happeing about once a year, snow, rain, wind, hot, cold. In all the discussion I am not hearing what seems obvious to me. Your electric company does not have enough people on hand to fix the problem. I do hear "well it happens rarely" So what; that is no excuse. A major utility needs to be prepared for such an emergency with sufficient staffing especially since there is a recent track record for such damage and outages.

Wow.

Folks telling me Isabel, June 2008, December 2009, Two in Feb. 2010, 2 or 3 severe but more localized in summer 2010, very wet snowstorm late Jan 2011, Irene 2011, that all of these were multi day events for tens and even hundreds of thousand. I dont understand they why what happened Friday is called unprecedented. I know the north to south coverage and length of the line was exception but no electric is no electric and it happens a lot.

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Wow.

Folks telling me Isabel, June 2008, December 2009, Two in Feb. 2010, 2 or 3 severe but more localized in summer 2010, very wet snowstorm late Jan 2011, Irene 2011, that all of these were multi day events for tens and even hundreds of thousand. I dont understand they why what happened Friday is called unprecedented. I know the north to south coverage and length of the line was exception but no electric is no electric and it happens a lot.

Just like people, trees get big and then old and then weak. Majority of the grid is above ground. And it was mostly built out in the 60's and 70's.

All of our power outages are mostly caused by trees. Age is catching up to us.

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