We shall see. Good test. I think 6Z Euro is correct. Nice block ahead of this system to slow it down. Expect a LP genesis over the Cape moving into the Gulf of Maine.
86 degree dewpoint jump
Ryan Knapp MWN chief
There is no sensor - we are not an ASOS site. We do it the old fashion way with a pair of mercury thermometers in a sling psychrometer. Looking at obs leading up to it, it seems legit to me. And if you know of dew point records, we can certainly verify if necessary.