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Tropical Storm Debby: Mid-Atlantic Impacts


WxWatcher007
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1 hour ago, Terpeast said:

0.43” since last night. I’d be content with a total of 3” by saturday. The mountains and shen valley need it more. 

Right where I am in both aspects. 

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Storm is definitely going through extra tropical transition. A fairly stout axis of deformation is beginning to unfold around I-77 down in the Carolinas. We’ll see that come into play for the heaviest axis of precip. The Shenandoah is going to get hammered, as well as the adjacent Blue Ridge. Areas that desperately needed rain out there should get it. 

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1 hour ago, MillvilleWx said:

Storm is definitely going through extra tropical transition. A fairly stout axis of deformation is beginning to unfold around I-77 down in the Carolinas. We’ll see that come into play for the heaviest axis of precip. The Shenandoah is going to get hammered, as well as the adjacent Blue Ridge. Areas that desperately needed rain out there should get it. 

Watch this turn into a nor’easter while it’s over us like Isaias did.

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1 hour ago, Kevin Reilly said:

Very good outflow and ventilation over top!  Now future trackers towards the coast it’s a little alarming how far west this got.  I would keep the guard up in the next two weeks. 

I don’t have anything scientific here, but I do think seeing how that Midwest trough trended does show that there’s potential this month that future troughs could do the same. Maybe not enough to drive it to Buffalo lol, but I think we get another EC threat (or two) this month. 

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   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1105 AM CDT Thu Aug 08 2024

   Valid 081630Z - 091200Z

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
   TONIGHT OVER PORTIONS OF NORTH CAROLINA AND THE MID ATLANTIC
   REGION...

   ...SUMMARY...
   Isolated tornadoes are possible today and tonight over portions of
   the Mid Atlantic region.  Strong thunderstorm wind gusts may affect
   portions of Utah and Arizona.

   ...Mid Atlantic...
   The center of circulation of TS Debby will lift northward today and
   tonight across central NC/VA, with the zone of strongest low level
   winds/shear just to the northeast of the low.  A consensus of 12z
   CAM solutions suggest the main threat of semi-discrete convection
   and a few tornadoes this afternoon and evening will be across
   north-central NC and south-central VA.  This threat will build
   northward into parts of northern VA and the Eastern WV Panhandle
   after dark, and eventually into central PA by Friday morning. 
   Please refer to MCD #1866 for further short-term details.
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1 hour ago, WxWatcher007 said:

I don’t have anything scientific here, but I do think seeing how that Midwest trough trended does show that there’s potential this month that future troughs could do the same. Maybe not enough to drive it to Buffalo lol, but I think we get another EC threat (or two) this month. 

JB is already onto the 8/20 threat.  

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6 minutes ago, AlexD1990 said:

New TOR up

URGENT - IMMEDIATE BROADCAST REQUESTED
   Tornado Watch Number 614
   NWS Storm Prediction Center Norman OK
   1245 PM EDT Thu Aug 8 2024

   The NWS Storm Prediction Center has issued a

   * Tornado Watch for portions of 
     Central and Eastern North Carolina
     Central and Southeast Virginia
     Coastal Waters

   * Effective this Thursday afternoon and evening from 1245 PM
     until 800 PM EDT.

   * Primary threats include...
     A couple tornadoes possible

   SUMMARY...Thunderstorms embedded within the outer bands of Tropical
   Storm Debby will continue to track northeastward across the watch
   area through the afternoon, posing a risk of a few tornadoes.

   The tornado watch area is approximately along and 80 statute miles
   east and west of a line from 50 miles northwest of Richmond VA to 50
   miles southeast of New Bern NC. For a complete depiction of the
   watch see the associated watch outline update (WOUS64 KWNS WOU4).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Tornado Watch means conditions are favorable for
   tornadoes and severe thunderstorms in and close to the watch
   area. Persons in these areas should be on the lookout for
   threatening weather conditions and listen for later statements
   and possible warnings.
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