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K. MARTIN


Tornado Prediction Center
Ontario Weather Service
Ontario, California

THE TPC IS OPERATIONAL DURING TORNADO SEASON. TPC IS CLOSED UNLESS A TORNADO OUTBREAK IS POSSIBLE OFF SEASON. THE OWS MONSOON FORECAST CENTER TAKES OVER DURING THE SUMMER.


Description of Tornado Watch Types :

Tornado Advisory: Advisory is issued when there is a tornado chance, however weak, and small, one needs to be issued for the dynamics in place.

Tornado Watch: This watch is issued when there is either a good chance of tornadoes, a number of them, and / or a strong tornado possible.

Enhanced Tornado Watch: This watch is issued when 2 or more F3 or greater could hit and / or a number of tornadoes touching down in an outbreak fashion. This could also mean that level 4 dynamics in the output are long lasting in the same area...


OWS Tornado Prediction Center
Southern California
Current SPC/NOAA Watches if TPC is not active. Always check this map from NOAA.