Wiz must have spent another day in the hot tub with his jacket and hood on . Big potential in SNE tomorrow
And it`s in the afternoon when a
severe/hydro threat should start to evolve and escalate, as
improving wind fields leading to bulk shear values rising to 35-40
kt, moderate convective instability and forcing with the stronger
upper disturbance should result in scattered to numerous showers and
storms along the frontal boundary. This is indicated by the majority
of the convective-allowing model members comprising the HREF. While
individual models vary on the timing, it appears that thunderstorms
may start to percolate as soon as 1 PM, but the better chances lie
after 2-3 PM, with greater numbers of storms then progressing
eastward towards the coast into the evening rush hour.
The largest uncertainties to the forecast hinge on the location of
the frontal zone, how quickly it progresses eastward, and while
early-day rains don`t look to be as widespread as the GFS paints it
to be, the extent to which the airmass can destabilize in the wake
of the early showers is a question mark. Exactly where the SW-NE
oriented front sets up is uncertain, but it appears to align itself
somewhere from I-84 to I-495/I-93 corridor or just west of that
line. In some of the NAM-based guidance, a weak low/mesolow ripples
along the front as storms begin to fire. If that materializes it
would serve to slow the front down further, but also back surface to
low-level winds slightly leading to somewhat longer lower-level
hodographs.