🌡️ Lakewood WA --°
🌡️ Groveland CA --°
🔥 Death Valley CA --°
via NWS
Brooks Groves

GIS Analyst · GISP · Cartographic Perspectives · Pacific Northwest

Nov 7, 2026🧭 Where Tuolumne County Comes and GoesWhere people leaving Tuolumne County go, and where newcomers come from, as gold and blue arcs rising out of Sonora over a 3D California rendered in forge3d, plus an orbit film. Stanislaus is the biggest flow both ways, the Bay Area sends far more people up the hill than it gets back, and Florida gets about 23 people a year. Nov 2, 2026👥 Who’s the Biggest Generation Where You Live?Inspired by Jake Steinberg’s map in The Twin Cities in 50 Maps: every census tract in the Seattle metro and in Tuolumne County, California, as a dot colored by its largest generation. Millennials lead 408 of 863 Seattle-area tracts, Gen Z fills the University of Washington, Gen Alpha gathers in the Pierce County suburbs, and Boomers lead 15 of Tuolumne’s 18 tracts, where one of the exceptions is a state prison. Nov 2, 2026🏔️ Torres del Paine, Twice: A Sunrise Flight and a Patagonia in MiniatureTorres del Paine two ways: a sunrise flight from Lago Grey and the Grey Glacier over the Cuernos to the Torres, rendered with forge3d from Copernicus elevation and a clear Sentinel-2 pass, and a spin-it-yourself diorama with icebergs, condors, hikers on the W and a Patagonian wind button, plus sidebars on the glacier, the Cuernos' dark tops, the wind, the pumas, the W and the O, and the fires, with podcasts and papers to go deeper. Oct 30, 2026🐄 Zermatt in Miniature: The Matterhorn, the Gondolas and the CowsGoing big in Switzerland: Zermatt and the Matterhorn from swisstopo's free 2 m elevation data and OpenStreetMap, with 46 lifts on their cables, the Gornergrat cog railway, 2,620 chalets with red geraniums, alphorn players, cows dressed for the Alpabzug, and a switch to ski season, plus sidebars on the Matterhorn's African summit, the 1865 first ascent, the cog railway and the Eringer queens.

Weather & Water

Storms, smoke, floods, snowpack, tides and the rivers of the Sierra and Northwest.

All 25 entries →

Volcanoes, Fossils & Ruins

Kīlauea, Rainier, ichthyosaurs, mammoths, Chaco Canyon and the mounds.

All 21 entries →

Maps & Flyovers

forge3d flights, lidar and cartography, from Yosemite to the Icefields Parkway.

All 19 entries →

Science & Nature

Pikas, golden trout, Lahontan fish and Easter Island, told with maps and data.

All 11 entries →

Cycling, Sports & Training

Grand Tour stage trackers, the Mariners, triathlon fueling and the rest of the sporting life.

All 7 entries →

Beer & Builds

HopLove, a searchable cookbook, a trade journal for the investment club, and other things I've made.

All 6 entries →

🌦 Weather & Water

Weather pipelines, snowpack, streamflow and lakes, from the Sierra to the Cascades.Meteorology →Hydrology →

Meteorology · ERA5 · Fog Coasts

🌫️ FOG-WATCH — Where the Fog Lives

A fog climatology for the world’s great fog coasts: the Namib, the Atacama and San Francisco. Ten years of hourly ERA5 turned into a fog-blanket map with a month slider, an inland transect past Gobabeb, and heatmaps of exactly when the fog rolls in.

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Meteorology · FORTRAN · Weather Balloons

🎈 CASCADIA-WX — Reading the Balloons

The Northwest’s four weather balloons, read twice a day in GFortran: freezing level, snow level and atmospheric rivers, each against 30 years of balloons. Amber-phosphor page, green-bar printout.

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Meteorology · 4 Stations · NWS + ACIS + Open-Meteo

🌡️ Weather Station — "We Got Cows"

A NOAA-ops-center-style dashboard monitoring four Western stations — Lakewood, Sonora, Reno, and Death Valley — read live from National Weather Service stations every 5 minutes. Measured-then-forecast charts, the forecaster’s notes, records back to 1893, NWS alerts. Storm-chaser instrument panel, built for $0.

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Snowpack · SNOTEL · NASA MODIS · Webcams

❄️ STORM CHASER — Rainier Snowpack

Real-time Mt. Rainier snowpack intelligence — 7 SNOTEL ground stations, NASA MODIS satellite snow cover with 14-day cloud fallback, and 6 live NPS webcams. Nine panels, hourly, forever. "You don't chase the mountain. The mountain chases you."

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Hydrology · USGS · Sierra Nevada

💧 Sierra Streamflow Monitor

Eight USGS gages across the Tuolumne, Merced, Stanislaus, and Big Creek watersheds — live flow with historical spaghetti charts on a Leaflet map.

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Limnology · Lake Tahoe · TEON · 15-min cadence

🔵 secchi — a modern Secchi disk

Live water-clarity readings from the Tahoe Environmental Observatory Network — three YSI EXO sondes around the lake sampled every fifteen minutes, cross-checked against USGS gauges on the tributaries. Wildfire smoke deposition overlay and a chlorophyll-based Secchi nowcast are next.

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Tides · FORTRAN · NOAA · Puget Sound

🌊 PUGET-TIDES — in FORTRAN

Eight NOAA tide gauges from Neah Bay to Tacoma. FORTRAN predicts the tide from its 37 harmonic constituents and checks itself against NOAA’s tables every six hours, then measures the surge and finds the king tides and daylight minus tides of the year ahead.

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Hydrology · COBOL · Retro

🖥️ SIERRA-FLOW — in COBOL

Eight Sierra rivers run through a GnuCOBOL batch job every morning and checked against 30 years of normal for the date, which COBOL builds itself. The report prints on green-bar paper; the program is on punch cards. Yes, COBOL.

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Stories & journeys 🔒 Memoir, travel journals, the Westin years, the Y2K archive and Myles, for family and friends. The collections →

A pint of amber beer on a wooden bar rail, Mount Rainier and the Port of Tacoma at dusk through the window

Everything here is free to read. If something stuck with you, you're always welcome to buy me a beer🍺 — most likely spent on something strange and wonderful from the tap log at Peaks & Pints here in Tacoma. No pressure, and thank you for reading.