Storm
Prediction Center Non-Operational Watch Probability Tables

Tornado Watch 185

Tornado Watch 185

The weather watch probability tables are a non-operational product currently under

evaluation at the Storm Prediction Center. For each watch, probabilities for particular

events inside the watch (listed below in each table) are determined by the issuing

forecaster. The "Low" category contains probability values ranging from 0-20%, "Moderate"

from 30-60%, and "High" from 70-100%. High values are bolded and lighter in color to

provide awareness of an increased threat for a particular event. You may provide

feedback on this non-operational product by writing an e-mail to spc.feedback@noaa.gov.

Tornadoes

Probability of 2 or more tornadoes |
Mod (30%) |

Probability of 1 or more strong (F2-F5) tornadoes |
Low (10%) |

Wind

Probability of 10 or more severe wind events |
Mod (50%) |

Probability of 1 or more wind events > 65 knots |
Low (20%) |

Hail

Probability of 10 or more severe hail events |
Mod (40%) |

Probability
of 1 or
more hailstones > 2 inches |
Mod (30%) |