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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.

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Today's briefing

What's happening across the country today

May
23
2026
Daily report
**EXTREME WATER CRISIS GRIPS HEARTLAND AS MAJOR RIVERS SURGE**

A severe hydrological emergency is unfolding across the central United States, with reservoir levels plummeting to catastrophic lows while major river systems experience dangerously high flows. In Kansas, Tuttle Creek Lake stands at just 40% of normal capacity (434,500 acre-feet versus 1,078,460 average), while Milford and Perry Lakes show similarly dire deficits at 33% and 28% of normal levels respectively. The crisis extends through Oklahoma and Texas, where Lake Hudson has collapsed to 36% of average storage and Eagle Mountain Reservoir near Fort Worth holds merely 27% of typical volumes. Most alarming is Lake Corpus Christi, sitting at a staggering 36% of normal, alongside Choke Canyon Reservoir at just 24% capacity—threatening municipal water supplies for South Texas.

**KEY IMPACTS:**

• **Ohio River flooding**: Flows at Old Shawneetown reach 259,000 cubic feet per second, creating hazardous conditions along the Kentucky-Illinois border
• **Texas reservoir emergency**: Multiple major reservoirs including Lake Tawakoni (50% capacity), Lake Fork (65%), and Richland-Chambers (33%) face critical shortages affecting Dallas-Fort Worth water security
• **Recreation shutdown**: Boating, fishing, and water sports severely curtailed across Kansas, Oklahoma, and Texas lake systems
• **Agricultural threat**: Irrigation supplies compromised across the Southern Plains during critical growing season
• **Mississippi River system elevated**: High flows from Minnesota through Arkansas indicate upstream saturation, with St. Paul registering 23,900 cfs

Arizona's Bartlett and Horseshoe Reservoirs also show concerning declines to 66% and 73% of normal respectively, compounding Western water stress. The juxtaposition of depleted storage against elevated river flows suggests rapid runoff conditions preventing reservoir recharge—a pattern consistent with intensifying precipitation extremes.
What you see on the map

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.

Snow

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.

Today · Snowpack
# Arctic Alaska Braces for Significant Snowfall as Lower 48 Sees Modest Accumulations Snow enthusiasts looking for the most impactful winter weather should turn their attention northward to Alaska's North Slope, where a potent ...
SNOTEL Depth SWE Snowfall 24/48/72h Avalanche
Explore the snow layer →
Water

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.

Today · Streamflow
# Major Rivers Running High Across America's Heartland and South Rivers across the United States are experiencing notably elevated flows this week, with the Ohio River leading the surge at a remarkable 259,000 cubic ...
USGS Gauges Reservoirs Watersheds FEMA Flood Zones
Explore the water layer →
Weather

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.

Today · Flood Watch
# National Flooding Update: Nation Remains Vigilant Despite Quiet Conditions **No Immediate Flooding Threats as Hurricane Season Approaches** The United States currently faces no significant river flooding emergencies according to the latest streamflow data, ...
Air Temp Rain (24h + Forecast) NWS Warnings Drought Monitor
Explore the weather layer →
Recreation

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.

Ski Areas Paddle Runs Fishing Camping Boat Ramps
Explore the recreation layer →
From "is it on?" to "we're going."

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.

01 · Plan

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.

Historical Percent‑of‑Normal
02 · Track

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.

Favorites Push Alerts
03 · Go

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.

Nearby Trailhead‑Ready
For your sport

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.

For skiers

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
For paddlers

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
For anglers

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
For ranchers + water managers

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
From early users

Built with the people who use it daily.

★ ★ ★ ★ ★ 4.9 average from early TestFlight reviews
★ ★ ★ ★ ★

"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."

JM
Jenna M. Backcountry skier · Boulder, CO
★ ★ ★ ★ ★

"Push alerts on the gauge that drops me into Section IV. I haven't missed a window all spring. Game changer for paddle planning."

DR
Daniel R. Whitewater guide · Salida, CO
★ ★ ★ ★ ★

"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."

MA
Maya A. Trip leader · Bozeman, MT
★ ★ ★ ★ ★

"Reservoir storage trends + watershed boundaries on one map. I previously had to bounce between three USBR sites. This saves me hours every week."

CL
Chris L. Water district · Grand Junction, CO
★ ★ ★ ★ ★

"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."

SK
Sam K. Fly fishing guide · Sun Valley, ID
★ ★ ★ ★ ★

"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."

AR
Alicia R. Orchardist · Yakima Valley, WA
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