Hopefully this link works: https://www.arcgis.com/home/webmap/viewer.html?url=https%3A%2F%2Flidar.geodata.md.gov%2Fimap%2Frest%2Fservices%2FMontgomery%2FMD_montgomery_dem_m%2FImageServer&source=sd
You know my neighborhood a bit. The elevation change from the water tower down to the WO&D is 100'. On the clear/calm nights without cold air advection there is cold air drainage and I just can't get that low. Could be worth at least 3 degrees over about a block. That's why to always be wary of point measurements in heterogeneous terrain.
Pretty cool lidar elevation map from Fairfax Co. https://lidar-fairfaxcountygis.opendata.arcgis.com/app/5d4d2187b01f4d62ba53787eea94496b
Interesting text on the SVR behind the line:
At 519 PM EST, gradient winds from a passing cold front will
continue to produce sporadic gusts around and above 60 mph.
I've had my VP2 since 2011. Works great. The only problem is that once you have it, you want to keep enhancing it. I added the wireless anemometer transmitter so I could mount it on the roof, the UV sensor, and then the Ambient Weather Weatherbridge so that putting the data on the internet is easy.
Per the spreadsheet, these are the only possible winners left.
If I did the calculations correctly, and assuming BWI/IAD hit this week, I win if DCA is prior to Nov. 25th, H2O wins between the 25th and Dec. 9th, and Ian wins at or after the 9th.
The couple next door hasn’t moved in yet, thankfully. I did go rake the leaves back into a pile, and that’s when I discovered that they were still dry on the inside and must have moved en masse.