Really think the 2nd April is one to watch, with models quickly converging onto a solution which I reckon could be the first robust severe threat in a while across IA/MO/IL
Models have shifted towards the subtle shortwave which travels fairly quickly through the Midwest on Thursday having stronger flow and being more developed. This leads to a stronger low level response with a pretty strong ~50/60kt LLJ being modelled during the entire duration of the event period. To be honest, the modelled windspeeds actually surprised me given the weaker mid-upper level flow.


The result is pretty decent moisture return. ECM here with a fairly widespread 60F dp, and a pacific front kind of feature. Due to the shape of the upper trough you start to get some colder 500mb temperatures overlapping this warm sector, and the result is 1000j/kg being modelled on this ECM run. Safe to assume this would increase as we get closer to the event.


Early days still considering its still D3/4 range... but these classic setups will always catch my eye. The general warm sector & trough geometry, plus the forcing mechanisms look quite 'clean' here in a way that could really favour (semi)-discrete supercells as the primary storm mode. Some of the forecast soundings have an environment easily favourable of strong tornadoes.

In literally the last few hours or so having looked through the models, this setup is really catching my eye, and I think it might be good to open a thread for this one soon. Especially the ECM/UKM scenarios would likely be severe weather outbreaks.
Models have shifted towards the subtle shortwave which travels fairly quickly through the Midwest on Thursday having stronger flow and being more developed. This leads to a stronger low level response with a pretty strong ~50/60kt LLJ being modelled during the entire duration of the event period. To be honest, the modelled windspeeds actually surprised me given the weaker mid-upper level flow.


The result is pretty decent moisture return. ECM here with a fairly widespread 60F dp, and a pacific front kind of feature. Due to the shape of the upper trough you start to get some colder 500mb temperatures overlapping this warm sector, and the result is 1000j/kg being modelled on this ECM run. Safe to assume this would increase as we get closer to the event.


Early days still considering its still D3/4 range... but these classic setups will always catch my eye. The general warm sector & trough geometry, plus the forcing mechanisms look quite 'clean' here in a way that could really favour (semi)-discrete supercells as the primary storm mode. Some of the forecast soundings have an environment easily favourable of strong tornadoes.

In literally the last few hours or so having looked through the models, this setup is really catching my eye, and I think it might be good to open a thread for this one soon. Especially the ECM/UKM scenarios would likely be severe weather outbreaks.






