Every storm. Every alert.
In real time.

DarkCell brings live NWS alerts, Level 2 and Level 3 radar, tropical tracking, satellite, spotters, and surface observations together in one fast dashboard built to watch severe weather the moment it happens.

Launch DarkCell → Explore features
LIVE RADAR
Real-timeAlerts issued immediately
No AccountOpen the app and go
1950 – NowTornado-track archive
MetricsFull alert history & stats
Capabilities

More than just a weather app.

DarkCell offers much more than just basic radar and forecasts. Everything you need to follow severe weather, from first warning to post-storm review is right here.

Live NWS Alerts

Every alert type the National Weather Service issues, plotted the instant it goes out with full polygon geometry — then filtered down to only the hazards you care about.

Multi-Product Radar

Reflectivity, velocity, dual-pol, echo tops, precipitation totals, and storm tracks from any site in the network. Switch between Level 3 and full Level 2 volume scans, and step through every elevation the radar sweeps — all rendered in your browser.

Daily Outlooks

Convective, fire weather, and precipitation outlooks from the SPC and WPC — plus mesoscale discussions as they're issued, so you see the risk before the first warning.

Satellite Imagery

Live GOES East/West products pulled directly from NOAA — overlaid on the same map as everything else.

Tropical & Hurricanes

NHC advisories, forecast cones, and storm surge watches and warnings overlaid on live radar — so you can follow a landfalling system on one map.

Historical Storm Tools

Replay past events, scrub archived radar frame-by-frame, and explore official tornado tracks reaching back to 1950.

Ground Truth

Spotter Network positions, local storm reports, and METAR surface observations — temperature, wind, dewpoint, and gusts — as live layers beside radar and warning polygons.

Models & Soundings

Products from HRRR, ECMWF, GFS, and more, alongside upper-air soundings — giving you a head start on what the atmosphere is about to do.

Alert History & Metrics

Search past alerts by type, place, or date, and break down what was issued over any stretch of time — long after the storm has cleared.

Why DarkCell

Built for active weather.

When storms are moving fast, DarkCell keeps the map focused: warning polygons, radar, motion, reports, and ground observations stay aligned so you can understand what changed without rebuilding your view.

  • ✓ Live radar, alerts, lightning & storm tracks together on one map
  • ✓ Split view to compare two products side by side
  • ✓ Right-click anywhere on radar for the exact value at that point
  • ✓ Spotters, surface observations & storm reports for ground truth
  • ✓ Filter the map down to only the alert types you care about
  • ✓ Browser-rendered radar that stays smooth, with no account required
Mobile Friendly DarkCell can launch from your phone like an app - just add it your home screen.
Alert feedExample
Tornado WarningCook County, IL
4:12
Severe Thunderstorm WarningSedgwick County, KS
4:08
Flash Flood WarningPulaski County, AR
3:54
Tornado WatchCleveland County, OK
3:30
Trusted sources

Straight from the source.

No middlemen, no stale feeds. DarkCell pulls straight from the organizations that issue and archive the data.

National Weather Service Storm Prediction Center National Hurricane Center Weather Prediction Center NOAA GOES Iowa Environmental Mesonet UCAR/Unidata University of Utah HRRR NOAA Open Data ECMWF Open Data Aviation Weather Center Spotter Network LightningMaps.org NOAA Damage Assessment Toolkit

Stay ahead of the storm.

Open DarkCell and track severe weather as it develops — completely free, no account required.

Launch DarkCell →