As of 10:43AM, the theta-e ridge has Td's above 60 just S of the risk area, though with light backing winds on the order of 5 to 10 knots. There is abundant insolation, and the RUC says sfc temps should be ~80.
However, that is a lot of dew depression, and I'm wondering if any storms that can initiate can get rooted.
The biggest problem may be the 700 temps, at 4-6C. That's kinda high for St Patrick's Day, and the synoptic orientation of the upper level system precludes cold air advection in the mid-levels. Plus, 850RH is only about 50-60%, so there's not much help with latent heat there, either. Those two parameters tell me that that's the reason the LI's are only progged at about -4 for 00Z. With such weak instability, UVV's will be low.
I'll guess either cap bust or some (somewhat) high-based and low-topped junk for tonight.
Bob