StormChase.com · Since 1998
See the storm
before it sees you.
Radar, severe weather risk and hurricane tracking, built by storm chasers who have been online since 1998. Every app runs on official National Weather Service data, laid out so you can read it at a glance.
One family of apps for the whole season
Spring tornadoes, summer hail, fall hurricanes. Pick the tool that fits the threat.
RAVIN
High-resolution NEXRAD radar with dual-pol, warnings, lightning and storm-tracking tools.
Mac · Mobile coming soon
StormThreat
SPC tornado, hail and wind outlooks, watches, discussions and storm reports on one map.
iPhone · iPad · Android
HurriMap
Hurricane tracking that tells you when to finish preparing at your own place.
iPhone · Android · Coming soon
Radar for Mac
RAVIN
Native NEXRAD Level III radar analysis for storm chasers, spotters and operational meteorologists. RAVIN is fast and Metal-rendered, with the products you actually use mid-chase.
- Super-res radar. Reflectivity and velocity plus dual-pol CC, ZDR, KDP and hydrometeor classification across the low tilts.
- Rotation and hail. NROT, debris signatures, VIL, echo tops, and hail, TVS and mesocyclone markers with storm tracks.
- StormPath. Draw a storm's path and RAVIN projects the threat corridor from radar-measured motion, listing towns ahead with arrival times.
- Warnings and lightning. Warning polygons that follow the animation loop, SPC outlooks and lightning data.
- Chase-ready. GPS tracking, placefiles and GeoFiles, and pen and draw annotation.
Deep into that darkness peering…
RAVIN Mobile
The RAVIN radar engine is coming to iPhone and Android.
Severe weather risk
StormThreat
Tornado, hail and wind outlooks, watches, mesoscale discussions and storm reports on one clean mobile map. Open the app, pick a threat type, and see where the risk is focused.
- SPC outlooks. Categorical risk plus tornado, hail and wind probabilities, with significant-severe hatching.
- Watches and discussions. Active tornado and severe thunderstorm watches and mesoscale discussions on the same map.
- Storm reports. Tornado, hail and wind reports, so you can see where severe weather is already happening.
- Archive. Look back at past days, like the May 6, 2024 HIGH risk shown here.
Hurricane tracking
HurriMap
Other apps show where the storm is going. HurriMap tells you when you need to be done. It's built on National Hurricane Center forecasts and drawn live on a map made for your phone.
- A deadline for your place. NHC's earliest reasonable wind arrival, minus the hours you need to prepare.
- Every storm, live. Cone, track, wind field and coastal watches and warnings as real map layers, with NHC's text a swipe away.
- What-if scenarios. Shift the track or strengthen the storm and see how the timing at your place changes.
- Free, no account. No ads or tracking. For iPhone, iPad, Apple Watch, Android and Wear OS.
Watch on YouTube
StormChaseHQ
Real tornado intercepts, supercells and hurricanes, filmed in the field across the Great Plains and beyond. 150+ videos and counting.
