This is an oddball stat, but I looked it up because the difference between Friday (high 99) and Saturday (high 79) was so stark.
At DCA (since 1941), there have only been 9 summer days with temperature drops of more than 20 degrees between consecutive days. Several of those included precip, which means that there have only been a handful of periods similar to what we just encountered.
I know it isn’t pool weather, but considering temperature, time of year, lack of bugs (early season plus wind), full vegetation, it really is an all-time type of day out there. Just awesome to sit in the backyard.
The big problem here is that we have a ton of densely-treed neighborhoods. It doesn't even take a severe-level storm to cause damage, especially to old and dying trees. So, we may scoff at some of the warnings, but I bet a lot of them are verifying via damage reports.
The reason I mentioned the records this morning was that the conditions were perfect to overperform, especially at DCA. Dry, mid-day frontal passage with downslope winds? Torch.
My kid is at tennis/swim camp at the local pool. We packed a lot of ice with her today. Hopefully the extend the pool time.
Per IADASOS, Dulles is already to 93, breaking the daily record before noon.
I wasn’t paying much attention today but was optimistic based on the radar a while back. Then I saw this. Sure enough, completely dying as it moves east.
That sounds like a station that does not have good ventilation. Given the 92 at IAD, the 91 at Manassas, and a 92 at one of the other Haymarket PWSs, I think 92 is a good number for today.
All of the models except the NAM Nest fire an MCS Monday afternoon north of Chicago and keep it going to the east coast. NAM and GFS are north of us (NYC/Philly), but the Euro is right over us.