⛈️ Storm-to-damage simulator

Deploy a supercell over a real city

Build an atmosphere. Click the map to place the storm. See if it spawns a tornado — and what damage it does.

CAPE

2500J/kg

CIN (the cap)

-50J/kg

0-6 km bulk shear

45kt

0-1 km SRH

150m²/s²

LCL height

1000m

Dewpoint

68°F

Storm forward speed

35mph

Direction (°)

225°

Storm assessment

Adjust the sliders

Move the sliders to build an atmosphere.

STP

—

Max EF

—

Click the map Place the storm's origin. Search a city, or click anywhere in North America.

Waiting

No storm deployed

Build an atmosphere and click the map to place your storm's origin, then hit Deploy.

Storm mode—

Tornado formed—

EF rating—

Path length—

Path width—

Homes destroyed—

Est. injuries—

Est. fatalities—

Total damage—