Something else to look at is the
current MSL (mean sea level analysis), usually you can get a sense of how long a feature will hang around based on the rate of travel of fronts "nearby". Sometimes a high will be quasi-stationary for a while, other times, they move right along. I'd expect it to be stronger, northerly quadrant by nightfall if that GRIB is for today. If the mild variables last, so much the better, but prepare for change as it moves on.
I very much agree with the poster who wrote to check actual
wind strengths, just like we check actual wave height measurements, too, because I love DATA and gribs are computer-fantasies, an indication of a possible future.
Ann