From Weather.com - These are the probability numbers for each state that will be affected by these storms.
TOR:CON Value Descriptions
• 8: High probability of a tornado
• 6: Moderate possibility of a tornado
• 4: Low chance of a tornado nearby, but hail and/or strong wind gusts possible
• 2: Very low chance of a tornado, but hail and/or strong wind gusts possible
• 0: Near-zero chance of a tornado or a severe thunderstorm
Friday April 13
AR northwest - 2 to 3
CA southwest - 2
KS southeast - 4
KS south-central night - 3 to 4
MO southwest - 3 to 4
OK southwest - 5
OK central - 4 to 5
OK northeast - 4
TX northwest near Childress, Wichita Falls - 4 to 5
Other areas - 1 or less
Saturday April 14
IA southwest - 6 to 7
IA northwest - 5
IA central, northeast night - 4 to 5
KS central, northeast - 8
KS southeast night - 6
MN southwest - 4
MN south, east-central night - 5
MO northwest night - 6
NE central, northeast - 5
NE southeast - 7
OK west, north-central (except panhandle) - 7
OK central, northeast night - 7
SD southeast - 4
TX northwest near Wichita Falls - 6
TX central night, west of I-35 - 4
WI west-central night - 5
Other areas - less than 2
Sunday April 15
AR - 3
IL north - 4
IL central, south - 3
IN northwest - 2 to 3
LA northwest - 3
MI upper - 3
MI west - 3
MN southeast - 4
MO east-central, south - 3
OK southeast - 3
TX southeast - 4
TX rest of area east of I-35 - 3
WI central - 5
WI north - 3 to 4
WI south - 4
Other areas - less than 2