Climate intelligence for the great outdoors.
Real-time snowpack, streamflow, weather, and flood data from 800+ NRCS SNOTEL stations and 10,000+ USGS gauges — on one beautiful, fast map.
What's happening across the country today
**Critical Conditions:**
- **Extreme reservoir disparities:** Oklahoma's Lake Eucha exploded to 965,000% above average while multiple Texas reservoirs including Barker (35,000% above normal) face dangerous overflow conditions
- **Persistent flood threat:** Southern states remain under extended flood watches with Houston and Gulf Coast regions experiencing renewed inundation risks midweek
- **Wildfire emergence:** Pacific Northwest sees dual-front fire activity with I-84 closure near Biggs Junction and a 250-acre blaze in SE Washington; Benton County wildfire threatens hundreds of homes
- **Recreational impacts:** High streamflows render popular whitewater destinations unsafe; Snake River at Hells Canyon Dam flows at 19,200 cfs amid scattered snow showers complicating mountain access
- **Minimal snowpack:** Late May observations show negligible accumulation outside Alaska's North Slope (expecting 4-6 inches), effectively ending the 2026 ski season with only 2-inch traces at Washington's Sawmill Ridge and Colorado's Vallecito
Every layer that matters,
updated as the day unfolds.
Each layer is built around a real question — what the snow is doing, what the rivers are running at, what the weather's about to throw at you, where you can head this weekend.
What the snow is doing
800+ SNOTEL stations with depth and SWE history, NOHRSC analysis painted across every western range, and 24/48/72‑hour snowfall forecasts on top.
What the rivers are running at
10,000+ USGS streamgauges with live cfs, reservoir storage, watershed boundaries, FEMA flood zones, and a 15‑day flow forecast at every gauge.
The weather that drives it all
Air temperature, last‑24h precipitation, NWS warnings (snow / fire / flood), the drought monitor, and smoke advection — everything that turns conditions into action.
Where you can head out
Ski areas, paddle runs, fishing access, campgrounds, boat ramps, points of interest. Tap any pin for the full report linked to nearest gauge and weather.
Built around the moments
that count.
Snoflo follows the way outdoor decisions really get made — the early signal, the planning window, and the trip itself.
Know your basin before the season starts.
Snowpack history, percent‑of‑normal across every state, reservoir storage trends. See what you're working with — and what to plan for.
Watch your favorite spots in real time.
Save the SNOTEL stations, gauges, and ski areas you care about. Push alerts the moment one hits the threshold you set.
One tap shows everything near you.
Tap Nearby for one report covering snowpack, streamflow, ski areas, paddle runs, fishing spots, and camping at your current location.
Built for the way you get outside
From dawn‑patrol pow runs to flood preparedness, every workflow has its own dedicated tools, paired with the data you came for.
Find the freshest snow.
SNOTEL stations across every western range, NOHRSC analysis fields, ski resort snow reports, and 72‑hour snowfall forecasts. Set an alert on your home mountain.
- 800+ SNOTEL stations w/ depth + SWE history
- Resort snow reports + new‑snow last 24 hours
- Avalanche forecasts overlay
- Push alerts on fresh snow thresholds
Catch the river at its sweet spot.
Every USGS gauge, paddle run on the Wild & Scenic Rivers system, fishing access, boat ramps, and a 15‑day flow forecast for your home run.
- 10,000+ USGS streamgauges, live cfs
- Wild & Scenic Rivers paddle runs with class ratings
- Surge alerts for rapid‑rise warnings
- Weather + flow forecast at every put‑in
Find the bite. Skip the bust trip.
Every fishing access on the angling map, paired with the closest streamgauge, water temp where available, fish species index, and the boat ramp / put‑in nearby.
- Fishing access points + paired gauge data
- Fish species guide for every state
- Boat ramps + amenities
- Weather + recent flow trend at every spot
Know your basin. Plan ahead.
Reservoir storage levels, percent‑of‑normal across every state, watershed boundaries, drought monitor, and historical context for every gauge in your district.
- Reservoir storage trends + percent‑of‑normal
- Watershed (HUC8) overlays
- Drought + flood monitor
- Historical context on every gauge
Built with the people who use it daily.
"Lives in the Front Range, this is the first snow app that doesn't make me cross-reference NRCS, NOHRSC, and the local ski-resort blog."
"Push alerts on the gauge that drops me into Section IV. I haven't missed a window all spring. Game changer for paddle planning."
"The Nearby tab is what finally got my non-app-people friends on board. They tap it once and see everything within an hour's drive."
"Reservoir storage trends + watershed boundaries on one map. I previously had to bounce between three USBR sites. This saves me hours every week."
"Tapped a fishing access in Idaho, popup showed the closest gauge, water temp, and what species are in the river. That's a tackle-shop conversation in one screen."
"Set freeze-warning alerts on every NWS zone covering my orchard. The push lands earlier than the email I used to wait for. Worth its weight."
Download Snoflo for iPhone
Free. No sign‑up required to browse the map. Save favorites and set push alerts with a free account.
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