Why the concern?
Because over 30 is currently considered a reading that has been associated with past stock market drops.
One day does not make a trend, so more than one day would be required to confirm a trend change.
At the same time, the S&P 500 dropped yesterday, but it still held its trend line. So while risk levels increased yesterday, a correction will need more market data for any kind of confirmation.
Sometimes, there is anecdotal
Yesterday’s VIX chart is above