UPDATE 9 AM: Showers and storms will be increasing in areal coverage from south to north on this Wednesday as a disturbance moves through and is augmented by the effects of daytime heating. END UPDATE
We should be used to this by now. It looks like a rainy interlude is ahead on Wednesday to break up what appeared to be the start of a slide to a few summerlike days. Today, once the morning fog burns off, will be the most typical summer day that we’ve seen in a week or more, with sunshine and highs mostly in the 80s. (If it does in fact it does make 80, it will be the first time after a week straight below 80 at Blacksburg and 6 days straight at Roanoke.) There will be some scattered afternoon showers and thunderstorms with daytime heating and rather thick moisture, but likely not the widespread rainy weather of previous days. That may arrive Wednesday with an upper-level impulse, possibly lingering into Thursday. The Weather Prediction Center is showing rainfall amounts of about an inch from the Roanoke Valley southwest over the next 3 days, as this system scoops up more moisture, lifts it and condenses it. Indications are that we will still dry out and warm up approaching the weekend as central U.S. high pressure expands eastward. Skepticism based on persistent forecasting — the trend of how the summer has gone repeatedly beforehand — is fully warranted.