Welcome back to school…and autumn
On this first morning of a new school year for many students a cold front is literally on Fredericksburg’s western doorstep. The tell-tale sign is that dewpoints – the true measure of humidity – are in the low to mid-60s west of the Blue Ridge mountains while east of the ridgeline they’re still in the sticky 70s. The front will press eastward across the rest of Virginia this morning and by dinnertime the dryer and cooler air will be noticeable in Fredericksburg. Today’s high temperature will reach into the mid-80s before diving into the upper 50s tonight as the dewpoint continues to drop.
Wednesday will dawn clear and cool with a light northwesterly breeze and a high temperature in the low 80s under brilliant blue skies and plentiful sunshine. After a morning low near 60 degrees Thursday will feature yet another cold frontal passage that could set off a shower or two but the odds are pretty low that any one spot will see rain. Behind this next front even cooler Canadian air will spill into the area and Thursday afternoon could bring autumn-like northwesterly wind gusts up into the 25 mph range.
Meanwhile the Atlantic tropical season keeps chugging along with no named storms here on Sept. 3, a very unusual state of affairs. There are three tropical waves that the National Hurricane Center is tracking but none of them has more than a 20 percent chance of developing further over the next 48 hours, and only one of them (currently near the Lesser Antilles at the far eastern edge of the Caribbean) has a 50 percent chance of developing over the next five days. We’re approaching the climatological peak of the Atlantic season so I would expect the activity to ramp up, but at present things are relatively quiet.
Meanwhile tonight might be time to throw open the windows and let the autumn air inside!