Play with our tropical cyclone genesis forecast app to visualise results from a back test of reask’s global TC model over the 2010-2017 period and across the 6 basins active for TC activity.

Make sure you also check our forecast for the current season.

Please contact us for full access to the data.

Summary statistics

The lower and upper hinges of the boxplots correspond to the first and third quartiles (the 25th and 75th percentiles) of each forecast while the horizontal lines show the median.

Storm Categories

Storm categories are defined using the following peak 1 min sustained wind thresholds:

  • Cat0 storms (named storms) have peak winds reaching at least 63 km/h
  • Cat1 storms (Hurricanes) have peak winds reaching at least 119 km/h
  • Cat3 storms (major Hurricanes) have peak winds reaching at least 178 km/h


This forecast uses Reanalysis data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at