UPDATED POST: Tuesday, February 28, 2017, 11:13 a.m.
It’s now looking like that there’ll be a widespread severe weather outbreak across Illinois this afternoon and evening.
Here’s the updated categorical risk from the Storm Prediction Center.
That large area of “moderate” risk in downstate Illinois is rather ominous since it wasn’t on the earlier update at 7:37 a.m.
For the Quad Cities and our part of Iowa and Illinois, we’re still under the “slight” to “enhanced” chances of severe weather this afternoon and evening.
Our biggest threat will be wind damage, followed by large hail.
But, there’s still a chance of a few strong tornadoes in our area.
As of this update, there are no watches in effect.
I’ll keep you updated as needed today.
ORIGINAL POST: Tuesday, February 28, 2017, 5:05 a.m. (Map updated at 7:37 a.m.)
A storm system will bring us record or near record warmth today and then our first real severe weather threat this evening and early tonight.
A warm front associated with that storm moved through eastern Iowa and the Quad Cities earlier Tuesday morning with non-severe storms.
High temperatures today will warm into the 60s to near 70°. The record high in the Quad Cities today is 66°. That was set just last year.
Interestingly enough, our record low for today was set two years ago at -18°. What a difference a year makes!
With unseasonably warm temperatures in place this afternoon, strong to severe thunderstorms will be breaking out across Iowa and Illinois as the cold front arrives.
These storms could bring large hail, damaging winds, and even a few tornadoes, especially east of the Mississippi River. This threat will last through the evening hours.
Tomorrow, as colder air comes in, the rain showers could mix with or change over to light snow.