There is a reason we do May 1st as the countdown until severe weather season and that's b/c the season begins in May and looks like we're right on time this year as we are looking at the likelihood for showers and thunderstorms both tomorrow and Friday and the potential exists for some of the thunderstorms to become strong to severe.
While the main cold front is still well west tomorrow, several pieces of shortwave energy will be moving through the fast westerly flow aloft during the afternoon tomorrow and a pre-frontal trough may be set up just to our west but the main driver for forcing tomorrow will be pieces of energy moving through the flow aloft.
With temperatures well into the 80's to near 90 away from the coast and dewpoints climbing into the mid-60's combined with fairly steep mid-level lapse rates will yield the development of moderate instability tomorrow afternoon. While winds in the lowest couple km aren't particularly strong there is plenty of speed shear tomorrow afternoon with a LLJ exceeding 30-35 knots and MLJ exceeding 50 knots.
As the impulses move overhead we'll likely see showers and thunderstorms develop, however, there is some uncertainty as to the aerial coverage of the storms. Given moderate instability and strong shear the potential will exist for thunderstorms to become strong to severe and pose a threat for strong to damaging wind gusts and perhaps some hail. Higher LCL's, modest low-level directional shear, and weak flow in the lowest few km should preclude any tornado potential.
Friday can be discussed after