NWS Products

? Severe thunderstorm warnings issued by the National Weather Service.
Color: Yellow
NWS SVR TSTM Warning (Yellow)
? Tornado warnings issued by the National Weather Service.
Color: Red
NWS Tornado Warning (Pink)

AI Products

? Indicates storms that have identified by the AI system. Also includes a colored bar. When the color bar reaches a value ~2, then the warning system is fairly close to the warning thresholds (but does not necessarily mean a warning will be issued)
Color: No Color
AI IDd Storms (Circles)
? Storm tracks. Essentially showing where a polygon would be drawn if a warning were issued.
Color: Blue
AI Storm Tracks (Blue)
? Generally the earliest warning issued as it has a very high false alarm rate, but gets a lot of tornadoes. Lowest threat.
Color: Green
AI Warning 1 (Green)
? From test 28. Only issues 10 minute warnings, should be used in combination with warning 3. This sytem beat NWS performance in SE with regard to POD10 and False alarm rates.
Color: Yellow
AI Warning 2 (Yellow)
? From test 45. Only issues 10 minute warnings, should be used in combination with warning 2.
Color: Yellow
AI Warning 3 (Orange)
? From test 82, Similar POD/False alarm rates to AI Warning 1 and 2, but issues warnings with slightly longer lead times (~5 minutes). Probably the best general use system.
Color: Magenta
AI Warning 4 (Magenta)
? Only warns about 20-30% of tornadoes and have similar if not slightly better false alarm statistics than 2-4, but has a very large LTA
Color: Red
AI Warning 5 (Red2)
? Loop of Warning 3.
Color: Yellow
AI Warning Loop 3

Omniscient Data Decision System for Severe Storms