I'm just spitballing here, but I'm curious if there is enough tree damage up in the north woods of WI that the GOES veggie band may be able to detect a scar tomorrow.
The satellite is so new I'm not exactly sure what we'll be able to see.
Beyond some reality checks, I'm not sure the models bake in any climo. But they also don't quite resolve the surface that well, so they have their own set of problem when it comes to 2 m temps.
MOS bends towards climo the farther in the future one goes. So the MAV/MET should be reasonably good in the near term. But like all guidance forecasting extremes is hard because extremes by definition don't happen frequently.
Actually Euro ensemble MOS got worse headed into today, whereas 5 days ago was showing BOS around 92-94.
I have the obs plot up for DVN all the time, and their current CWA is LOL.
Every site at or above 108 HI. MXO is now 93/84 for a refreshing 121. The livestock show must be fantastic right now.
We have regularly scheduled maintenance in the NWS (depending on service level of the airport it could be as often as every 6 months). So it would be something you do every couple of years or something like that, not necessarily when you think there is a problem.
AWOS is a FAA maintained piece of equipment, and typically they are only concerned with instrumentation that is affecting flight ops. So dews not real high on the priority list.
ASOS are maintained by the NWS to an accuracy standard of about 1C for normal range in temperatures/dewpoints (don't let Scott see regarding BOS). Davis standards are 2C, and that's assuming someone is regularly calibrating their sensor. So that's generally why a personal station or AWOS can slip into bias territory.
That 80 dew near the NW tip of IL is DBQ. That's an ASOS and as accurate as we're going to get on dews. Impressive.
Also it's the start of the Great Jones County Fair (currently 91/82 at MXO). Ice cold domestics flowing like the Maquoketa River.
Looks like the NCA used the 1901 to 2013 period and based changes off a 1901-1979 baseline.
But statistically significant areas are definitely Great Lakes, Northeast, Upper Midwest, and Ohio Valley.