mswx@montesano:~$ ./bootstrap --mode=nerds
[ ok ] plateau composite MSWX · 5 ridge sensors online
[ ok ] valley composite HSVWX · 6 valley sensors online
[ ok ] forecast bus · 7 models · NWS · ECMWF · GFS · ICON · HRRR · NBM
[ ok ] radar nowcast · MRMS @ 2-min · KHTX level-II
mswx nerd mode
Hyperlocal weather instrumentation for the Monte Sano plateau —
1500 ft above the Tennessee Valley, where the regional forecast stops working.
This is the engine room. New here? Run the decoder first.
mountain · MSWX
—
plateau composite
valley · HSVWX
—
downtown
Δ mtn − valley
—
cooler up top?
pool water
—
club sensor
rain today
—
chance
sky
—
cloud
instruments pick a tool
▚
Graph
Every forecast and every observation — mountain and valley — on one timeline. Pan back through history, zoom, toggle any line, and rewind any forecast to grade what it said in advance.
the big chart
◉
Radar
Live MRMS rain nowcast. Is it raining, when does it start or stop, and how sure are we — measured by how tightly the last ten scans agree.
live · 2-min
⌖
Network
Every sensor we read, grouped by composite. See how MSWX (the mountain) and HSVWX (the valley) are built from their member stations, live.
11 stations
≈
Pool
The Monte Sano Club pool water temperature, measured by a sensor in the pump room and forecast a week out by an energy-balance model.
physics model
⊞
Models
The seven weather models we pull, ranked by how much we trust each one — what GFS, ECMWF, ICON, HRRR, NBM and the NWS forecaster actually are, and what we use them for.
primer
❓
Decoder
MSWX? HSVWX? Lapse rate, inversion, trimmed mean, MAE, POP, nowcast, GHI. Every acronym and bit of jargon on this site, in plain English.
start here
✓
Verify
Are the forecasts any good? Pick a past window and see what every source predicted, laid over what actually happened. Scoreboard included.
accountability
⇅
Inversions
The nights the mountain is warmer than the valley below it. Cold air pools downtown while the plateau sits in the warmer air aloft — and the regional forecast gets it wrong.
the whole point
⌃
Lapse
How fast temperature drops per 1000 ft of elevation, by hour of day. The textbook says 3.5°F. Monte Sano doesn't always agree.
elevation
Δ
Deltas
Station-to-station temperature differences. How much warmer or cooler is each site than a reference, and how consistent is that gap.
comparison
↕
Records
Hottest and coldest readings per station over the trailing window. Who runs hot, who runs cold, who swings the most.
extremes
❄
Frost
The last spring frost each year, mountain vs valley. The plateau frosts later — quantified, so gardeners up here know how much shorter their season runs.
growing season
what is this place?
The front page of mswx.net is for the neighborhood — one temperature, one pool number, will-it-rain. Nerd mode is everything underneath it. Eleven live sensors, seven forecast models, a radar nowcast, a pool physics model, and five years of history — all the raw machinery, plotted and explained. Nothing here is gated; it's a free neighborhood app and this is the fun part.
Built and run by a neighbor, not a meteorologist — so everything has a plain-English decoder entry. The data is public: there's a read-only JSON API if you want to build on it.