NorthArlington101 Posted April 29 Share Posted April 29 I don't like to criticize the NWS but Charleston dropped the T-storm warning and now has this completely unwarned as it approaches a town which just seems really bad and one of the worst misses I've seen when it comes to tornado signatures. It had a better circulation and more lofted debris ball beforehand too! It even had a separate debris ball 30 minutes ago now! I’m not convinced that’s a TDS in this radar snapshot at least tho I’m hardly a pro here. EDIT: looking at the radar loop I think it *was* one at a point before this screenshot but idk if I t think it’s on the ground here. Might be some debris fallout Link to comment Share on other sites More sharing options...
SnowenOutThere Posted April 29 Share Posted April 29 52 minutes ago, NorthArlington101 said: I’m not convinced that’s a TDS in this radar snapshot at least tho I’m hardly a pro here. EDIT: looking at the radar loop I think it *was* one at a point before this screenshot but idk if I t think it’s on the ground here. Might be some debris fallout My point is this storm deserved a Tornado warning at some point in its lifespan. 1 Link to comment Share on other sites More sharing options...
Stormchaserchuck1 Posted April 29 Share Posted April 29 Days with cool temps usually don't do much severe wx wise in the area. This is 3x this season where they had risk with 50s and 60s and it amounted to nothing. Link to comment Share on other sites More sharing options...
NorthArlington101 Posted April 29 Share Posted April 29 My point is this storm deserved a Tornado warning at some point in its lifespan. Concur with that! All good. 1 Link to comment Share on other sites More sharing options...
SnowenOutThere Posted April 29 Share Posted April 29 17 minutes ago, NorthArlington101 said: Concur with that! All good. Those same cells (weakening ofc as they move out of the best thermodynamic environment into the wedge) are approaching UVA and Tech (though further SW like Tech got clearing and now has 1000+ SBCAPE) so will be interesting to see if they can at least hold together enough/become elevated and drop good rain and thunder. Charlottesville itself has gotten split the whole past week and needs a good downpour. Link to comment Share on other sites More sharing options...
NorthArlington101 Posted April 29 Share Posted April 29 Those same cells (weakening ofc as they move out of the best thermodynamic environment into the wedge) are approaching UVA and Tech (though further SW like Tech got clearing and now has 1000+ SBCAPE) so will be interesting to see if they can at least hold together enough/become elevated and drop good rain and thunder. Charlottesville itself has gotten split the whole past week and needs a good downpour. Rooting for some interesting weather somewhere in this area. Been such a bore lately. 1 1 Link to comment Share on other sites More sharing options...
SnowenOutThere Posted 4 hours ago Share Posted 4 hours ago From LWX: Honestly a bit surprised tomorrow got such a long writeup but the increasing risk of storms became high enough to rule out a hike in Shenandoah tomorrow. Recent guidance has trended a bit slower with the front`s progression through the area, which could potentially allow for a bit more destabilization tomorrow afternoon. As a result, the trend has also been slightly upward with CAPE values. Much of the destabilization appears to occur as a result of low-level moisture convergence in the vicinity of the surface front, which causes dewpoints to rise into the low to mid 60s. That being said, there is still a fair amount of uncertainty with respect to how much destabilization occurs, and also the areal coverage of storms that form. Shear certainly won`t be lacking tomorrow, with most soundings showing long, straight hodographs, with around 60 knots of effective bulk shear and over 100 knots of shear in the cloud bearing layer. So, if storms form, there is a conditional threat for supercells. The 12z HRRR for example, hinted at this possibility, with weak UH tracks. The thermodynamic environment is a bit odd, and casts uncertainty with respect to what hazards storms could potentially produce, if they occur at all. Model soundings show long, straight hodographs, which would normally be supportive of hail production. However, profiles are nearly saturated and moist-adiabatic at low-levels, with a considerable amount of the CAPE below the freezing level, which is unfavorable for hail production. Winds in the mid-upper levels are very strong, but aren`t overly impressive just above the surface. And model soundings show a good amount of dry air in the mid-levels (which yields DCAPE values around 700 J/kg), but very moist air at low-levels and poor low-level lapse rates, which would be unfavorable for transporting higher momentum air down from aloft. Machine learning guidance is downplaying the potential for severe thunderstorms, and SPC currently has us outlooked in general thunder. However, tomorrow is at least worth monitoring from a severe thunderstorm perspective given the CAPE/shear combination that could potentially be in place (high end scenario of around 1000 J/kg of MLCAPE, and 60 knots of effective bulk shear). 1 Link to comment Share on other sites More sharing options...
high risk Posted 37 minutes ago Share Posted 37 minutes ago 3 hours ago, SnowenOutThere said: From LWX: Honestly a bit surprised tomorrow got such a long writeup but the increasing risk of storms became high enough to rule out a hike in Shenandoah tomorrow. I think they're bored. But seriously, the shear is great, but as they noted, there just isn't any instability to work with. Unless that changes, the general thunder outlook is reasonable. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now