Revised August 2, 2016
Bob Traube, NOVAC’s coordinator for TMI observing throughout the year, recently made the following suggestions for getting current weather and forecast information for Spruce Knob:
I like to use this site for TMI weather.
It shows realtime data from the weather station that NOVAC installed on the TMI grounds and the Wunderground forecast is reasonably accurate much if not most of the time. It nailed the predictions for both Sat & Sunday nights (recent conditions). Obviously, the further out you go, the less accurate it is since it’s hard to get data on butterfly flapping in China that far out. 😉
The other source I like is “Storm” (for iOS) It is also from Wunderground, so it’s not necessarily an independent confirmation.
I can, however, predict with confidence that our weather this week will be exactly like the weather at AHSP next month….Unpredictable.
One perennial problem is that local weather on the mountain differs from overall area weather — the microclimate. Sometimes adverse weather is below us, and sometimes it forms over us. Things can change suddenly, both for better or for worse.
TMI is shielded from some mountain winds by ridges west and east — Back Ridge and the extended south ridge of Spruce Mountain. That terrain can also cause fogs to linger in the shallow valley.
Another mountain effect is rapid cooling in the evening due to the altitude and being above much of the water vapor in the lower atmosphere.
We expect to have additional realtime detailed weather sources online during AHSP.