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December Discobs Thread 2018


George BM

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Miserable night holding the line against water in the basement. Sump pump, water vac, dehumidifier, all instruments were on "GO." That instead of ornamenting the tree. Xmas carols just don't sound as good when you emptying water from the vac down the commode. Almost as much trouble with flooding last night as with some of the late July downpours. 

 

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Hmmm... from this afternoon's LWX AFD for Thursday into Friday:

 

.SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/...

Very potent storm system will be affecting the East Coast Thu
night into Sat with potentially record SLP values over our area for
the month of December with values fcst to be less than 990 mb.
This system will be accompanied by a strong warm conveyor belt
bringing PW values over 1.5 inches which are near 400% or
nearly +4 STDs of normal. Widespread heavy rainfall of 1.5 to
2.5 inches is expected with isold higher amts. Given saturated
soils from last weekend`s rain and potentially intense rainfall
rates and training convection, flash flooding threat appears
very high with this event. A severe threat may also exist due to
strong low-level wind fields (i.e. 60kt 850 mb low- level jet)
particularly east of the Blue Ridge mtns. Best chance for heavy
rainfall and flooding threat is from 7PM Thu through about 10AM
Fri. See long term discussion below.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...

Strong cold front will be crossing the region Friday. Convective
elements producing gusty winds and heavy rain will be possible
thanks to anomalously strong low level jet and very high PW`s. Both
flash flooding and severe weather may be concerns.

After the front passes, strong pressure gradient as the low pressure
pushes up to southern Canada will remain over our region, resulting
in a gusty wind and potentially wind advisory criteria (50 mph
gusts). This will extend from late Friday into Saturday. Upslope
snow showers will be another concern, with advisory level snow
potential along our westernmost zones.

 

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46 minutes ago, yoda said:

Hmmm... from this afternoon's LWX AFD for Thursday into Friday:

 


.

 

Just read it...Could be a fun event.  1-3" of rain with severe potential.  Then 50mph gusts with extremely saturated soils....Would think power outages would be a concern.

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