Annual and monthly tornado day averages by NWS forecast area
Many offices of the Weather Service see five or more tornado days in the average year.
Category: Tornado Climatology
Maximum tornado probabilities by month and year
Past forecasts from the Storm Prediction Center offer many clues. A visual examination of the data back to 2002.
Peak tornado season is often April or May, but that’s not always the case
May is by far the favorite in total counts. April leads for strong tornadoes.
How peak tornado season ends up active or quiet in the Plains
While outbreak details evolve into the day one happens, there are a number of large scale pattern hints to look…
Clues from a decade of Storm Prediction Center tornado outlooks during peak season
We can get an idea of the tornado forecasting normal by looking at past data.
Key facts about violent tornado season
A quick look at when the first and last violent tornado of the year typically happens, and some potential trends…
The most tornadoes in a calendar day by state
All states have had a big tornado day, and many have come in recent decades.
When is the best time of year to schedule a storm chasing vacation?
Chasing prizes often come down to persistence, but there are ways to play the odds.
Rethinking how we conceptualize tornado days
Simple ways of defining tornado days leave a lot to be desired.
An overview of the modern tornado record, 1950 through present (maps)
Here's a concise look at the official tornado record.
Weather patterns that favor lots of tornadoes during each month of the year
While certain rules hold all year, each month has its own nuances.
The calendar days with the most and fewest tornadoes
With more than 65 years of tornado records, we have a good idea of when activity is most and least…