When to go. What to throw.
baromoon reads your lake — barometer, water temperature, wind, light, and cover — and hands you the window, the bank, and the rig. Every pick shows its reasons and its sources. Same inputs, same report, every time. The moon gets a vote; the lake decides.
See the plan Make it yours · 3 steps
Free, no account — 18 waters, and every pick shows its work.
The ledger
Hidden Valley Lake · next three daysYour nearest water, best first — open a line for the full session: hour-by-hour windows, the bank, the rig, and the reasons behind each pick. With a profile, this becomes your waters and your sky.
Waters near me — your browser picks the closest water; the location never leaves this page.
- A Mon Sep 2812:00 PM–2 PM Hidden Valley Lake Squarebill crankbait 7.1/10
- A Mon Sep 283:00 PM–5 PM Hidden Valley Lake Squarebill crankbait 7.0/10
- B Mon Sep 289:00 AM–11 AM Hidden Valley Lake Hollow-body frog 6.8/10
- C Mon Sep 285:30 PM–7 PM Hidden Valley Lake Walking topwater (Spook/110) 5.8/10
- C Mon Sep 288:00 PM–10 PM Hidden Valley Lake Walking topwater (Spook/110) 5.4/10
- C Mon Sep 285:00 AM–7 AM Hidden Valley Lake Walking topwater (Spook/110) 5.3/10
S — drop everything · A — plan around it · B — worth being out · C — the fish have other plans.
How it works
Solunar tables stop at the moon. baromoon runs the whole lake — weather, history, water, cover, sky, and tackle — and shows the arithmetic.
- Weather + history — forecast for the window, a 75-day archive behind it: heat streaks, water-temp estimate, and turnover inference (when a lake mixes, deep fish and slow presentations win).
- Sky math — Swiss-Ephemeris sunrise/sunset, moon, solunar majors/minors, planetary hours; optionally transits to your natal chart.
- Tackle library — every lure and rig shows its conditions and its source: manufacturer catalogs or state-agency guides. Read the citations →
- Scoring — fixed arithmetic over all of it, ranked into the ledger. Re-run it and you get the same numbers.
Waters we cover
- Hidden Valley Lake Middletown, Lake County, CA · map
- Lake Berryessa Napa County, California, United States · map
- Lake Sonoma Sonoma County, California, United States · map
- Lake Ralphine Santa Rosa, Sonoma County, California, United States · map
- Lake Hennessey Napa County, California, United States · map
- Clear Lake Lakeport, Lake County, California, United States · map
- Indian Valley Reservoir Lake County, California, United States · map
- Lake Pillsbury Lake County, California, United States · map
- Spring Lake Sonoma County, CA, USA · map
- Blue Lake (Upper Blue Lakes) Midlakes, Lake County, California, United States · map
- Highland Springs Reservoir Lake County, CA, USA · map
- Watson Lake Prescott, Yavapai County, AZ, USA · map
- Willow Lake Prescott, Yavapai County, AZ, USA · map
- Goldwater Lake Prescott, Yavapai County, AZ, USA · map
- Lynx Lake Prescott National Forest, Yavapai County, AZ, USA · map
- Granite Basin Lake Prescott National Forest, Yavapai County, AZ, USA · map
- Fain Lake Prescott Valley, Yavapai County, AZ, USA · map
- Yavapai Lakes Prescott Valley, Yavapai County, AZ, USA · map
All waters on the map → · any water body can be characterized from public data (OSM + Wikidata) and added to the map.