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4/11/20 - 4/13/20 Severe Weather Outbreak

mean looking QLCS with embedded supercells, soundings very supportive as well, even at night thermodynamics are solid for a high end HSLC event, hodo is scary, shear is scary, and I thought that setup back in February was scary 47E50FC3-F1FD-4975-ABDF-E5A22C27E195.pngB6DD087E-B160-4DCE-9100-F2805C1C838A.jpeg
also that CIPS analog looks similar to last years moderate 6171636C-321E-4237-BD98-9A01F045FCEC.jpegBF976A2D-BD74-4289-82B7-69ACFFA765BF.jpeg
 
Early morning timing too.


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We hardly ever get the diurnal timing right around here. Usually morning or overnight stuff that looks bad 5 days out but ends up not a big deal. The parameters with this setup appear to be pretty impressive, but we have a long way to go. Would like to see better timing before getting too excited...for here, I mean.
 
GFS completely folded to the Euro, still ticking NW on this run. Embarrassing.
Really shows you the strength and superiority of the euro. It was at a disadvantage and more susceptible to issues with the ongoing issue of lack of data from aircraft due to the coronavirus. And the gfs still had to play catch up.
 
Whens reed timmer going to start saying historic tornado outbreak likely?. Hes probaby too caught up in the severe weather up north so i give it a day.
 
Sorry guys for this but I have been asleep all day for work tonight. Is this for Sunday or Sunday night? Timing is of great concern for me for family daycare reasons.
 
Sorry guys for this but I have been asleep all day for work tonight. Is this for Sunday or Sunday night? Timing is of great concern for me for family daycare reasons.
Right now for your area it would be arriving just before 12z Monday
 
Euro is basically showing Apr 16 2011 part ii in the Carolinas

Very odd you stated that. Thursday's record high was set in 2011 at Charleston with 90...(lot of similarities indeed). Locally we had a brief but failed attempt at a supercell in Summerville... Storm was sheared apart by marine influences in the early afternoon). But we all know what happened basically just north of here and into NC that day
 
GFS completely folded to the Euro, still ticking NW on this run. Embarrassing.
It’s very far off when you were showing the euro rain totals of 2-4”+. GFS is half inch of rain if that and less for the NC/VA border areas. Anyone with tropical tidbits can see you are flat out wrong saying it completely folded. I know the GFS sucks but you are being wishy-washy showing the euro extremes then falsely saying the GFS folded. I’m mostly tracking the rain which most need in their gardens.
 
It’s very far off when you were showing the euro rain totals of 2-4”+. GFS is half inch of rain if that and less for the NC/VA border areas. Anyone with tropical tidbits can see you are flat out wrong saying it completely folded. I know the GFS sucks but you are being wishy-washy showing the euro extremes then falsely saying the GFS folded. I’m mostly tracking the rain which most need in their gardens.

GFS is trending towards the euro anyways, with severe and rain, the gfs has basically folded... in being a complete trash model, lol FF7D1FE8-9BD0-4409-9A96-7EB5EDBE598A.gif
 
Obviously we are 5+ days out so no chance of having the finite details ironed out this far. It does seem like there is a lot of rain/convection being modeled in some areas earlier in the day. I do wonder if that potentially will be the main limiting factor in this. Could prevent things from getting crazy in areas further north. Will be interesting to see how things play out over the next several days.

Euro is leading the way so far. No surprise. See y’all around 2am
 
Ima be pissed if I get a 70mph gust with less than half inch of rain. I have a feeling euro is gonna bust hard on rain totals.
 
0z ECMWF is running, about to see the 7th run in a row w/ big time severe outbreak.

Synoptically, this run is even more dangerous looking than the 12z thru 72 hr, with our trough over New England lifting out faster and downstream s/w ridge over Texas intensifying.
 
This sounding near Atlanta is stupid. The one nitpick I have is the piss poor low-level lapse rates of 5-5.5 C/km, you really want this to be closer to at least 6.5-7C/km or so for tornadoes and to maximize low-level stretching. Other than that, the environment is insane, 100 knots of deep layer shear...


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I'd hedge by bets on this slower/more amped trend in our upper low over the Desert Southwest probably being unfinished. I'd almost exclusively lean on the slower/amped Euro/UKMET solutions for overall synoptic-scale evolution & timing for this event because the GEFS, GFS, & NAM are going to remain completely lost for a few more days.

ecmwf-ens_z500a_wus_fh72_trend.gif
 
I'd hedge by bets on this slower/more amped trend in our upper low over the Desert Southwest probably being unfinished. I'd almost exclusively lean on the slower/amped Euro/UKMET solutions for overall synoptic-scale evolution & timing for this event because the GEFS, GFS, & NAM are going to remain completely lost for a few more days.

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That would allow Carolina alley to get in on this one
 
RAH taking the heavy rain route with no mention of severe around here. Probably not a bad idea at this point, especially if the main low continues to trend north and west of here.
 
RAH taking the heavy rain route with no mention of severe around here. Probably not a bad idea at this point, especially if the main low continues to trend north and west of here.

Well if we keep ticking NW, severe will definitely become the main concern over heavy rain. (minus along the warm front)
 
That would allow Carolina alley to get in on this one

Yeah, we gotta keep a close eye on the timing & amplitude of this upper low the next few days, both a slower & more amped upper low would delay the timing into the afternoon on Monday in the Carolinas, we're probably about 9-12 hours too fast on the Euro. Not even worth looking at the GFS for this unless you like watching a train wreck unfold in real-time.
 
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