Is it good out there? Know before you go.
Live snowpack, streamflow, waves, and weather for every river, mountain, lake, and break in America — graded into plain-language condition scores, forecast by Pulse, and delivered the moment it changes.
Right now across America
One report page for every place you go.
Pick a world to drop into — every card below is live data, not a brochure.
Six systems, one product.
Live data engine
Snowpack, streamflow, river levels, reservoirs, buoys, avalanche danger, wildfires, and weather — ingested continuously from the agencies that measure them.
Condition scores
Raw gauge numbers mean nothing to most people. Snoflo grades conditions per activity, so a score of 82 means "go" whether you ski, paddle, fish, or surf.
Custom alerts
Set a threshold on any river, gauge, snow sensor, lake, or resort. Get a push the moment it crosses — powder days and paddle windows, never missed.
Trip recording
Record GPS tracks with photos on iPhone, link them to the river run, trail, or resort, and build a verified history of your seasons.
Pulse forecasts
The forecast engine behind Snoflo. It learns how each river, snowpack, and break behaves and projects the next 15 days with confidence bands.
SnofloAI
Ask in plain English: where should I paddle this weekend? How is the snowpack trending in the San Juans? Answers grounded in the live data.
See 15 days ahead on every gauge.
Pulse blends live readings, precipitation forcing, and each site's own history into daily forecasts with honest uncertainty bands — the same engine, from the Sierra to the Smokies.
How Pulse works →The whole platform, in your pocket.
The live map, condition scores, push alerts, trip recording, offline maps, and a home screen widget for the stations you love.
Download on the App StoreGo deeper. See further.
- Unlimited favorites & custom alerts
- 15-day Pulse forecasts on every gauge and basin
- 10+ years of historical context & range calendars
- Full climate map — every layer unlocked
The national briefing.
- Ohio River At Old Shawneetown, Il-KyKentucky259,000 cfs
- St. Johns River At Jacksonville, Fla.Florida152,000 cfs
- White River At Batesville, ArArkansas43,800 cfs
- Mississippi River Below L&D #2 At Hastings, MnMinnesota27,700 cfs
- Savannah River Near Port Wentworth, GaGeorgia25,700 cfs
- Mississippi River At St. Paul, MnMinnesota23,900 cfs
Built with the people who use it daily.
"Living in the Front Range, this is the first snow app that does not make me cross-reference three different sites and the local ski-resort blog."
"Push alerts on the gauge that drops me into Section IV. I have not missed a window all spring. Game changer for paddle planning."
"Reservoir storage trends and watershed boundaries on one map. I used to bounce between three different agency sites. This saves me hours every week."
Start reading the outdoors.
Free on the web and the App Store. Live data on your first screen, no account required.