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Severe Weather 4/17/26
- Thread starter N0mz
- Start date
TornadoFan
Member
Minnesota tornado!
slenker
Member
Days like this where tornadoes drop quickly are typically an ominous sign…
TornadoFan
Member
Kds86z
Member
First tor of day is kind of impressive..
UpperLevelLOL
Member
Yeah this is a big change from Monday and Tuesday when storms looked great on radar but took forever to drop anything
Remember that the first storm of the day tells a story...
TornadoFan
Member
Tried to rope out, but recondensed again.
Central Ohio Wx
Member
St. Donatus cell is starting to tighten up; I would watch it very, very closely. Could be a big one.
Kds86z
Member
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 129 CONTINUES.
SUMMARY...TORNADO THREAT IS INCREASING, WITH POTENTIAL FOR A STRONG
TORNADO.
DISCUSSION...A PAIR OF SUPERCELLS HAVE BECOME MORE WELL DEFINED WITH
THE CONFLUENCE ZONE ACROSS EASTERN IOWA. THE ENVIRONMENT NEAR THESE
CELLS IS WITHIN A ZONE OF FAVORABLE LOW-LEVEL SHEAR, WITH EASTERLY
BACK SURFACE FLOW AND 100-200 M2/S2 0-1 KM SRH. GIVEN THE EQUALLY
FAVORABLE THERMODYNAMIC ENVIRONMENT, POTENTIAL FOR TORNADOES,
PERHAPS A STRONG TORNADO, IS INCREASING.
..THORNTON.. 04/17/2026
VultureDirge89
Member
Dubuque area cell seems to be weakening slightly but still worth watching to see if it recycles.
Kds86z
Member
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 129 CONTINUES.
SUMMARY...TORNADO THREAT IS INCREASING, WITH POTENTIAL FOR A STRONG
TORNADO.
DISCUSSION...A PAIR OF SUPERCELLS HAVE BECOME MORE WELL DEFINED WITH
THE CONFLUENCE ZONE ACROSS EASTERN IOWA. THE ENVIRONMENT NEAR THESE
CELLS IS WITHIN A ZONE OF FAVORABLE LOW-LEVEL SHEAR, WITH EASTERLY
BACK SURFACE FLOW AND 100-200 M2/S2 0-1 KM SRH. GIVEN THE EQUALLY
FAVORABLE THERMODYNAMIC ENVIRONMENT, POTENTIAL FOR TORNADOES,
PERHAPS A STRONG TORNADO, IS INCREASING.
..THORNTON.. 04/17/2026
Dropped briefly but it's definitely primed to drop again at some point.
Kds86z
Member
Not good sign lol
Kds86z
Member
CheeselandSkies
Member
Too bad it's tracking right into the Mississippi River valley. Next it's heading into Jo Daviess County, IL (northwesternmost corner of the state) which I've heard is pretty rough chase terrain, too. With some right-turning, looks like it might not track into Wisconsin until it's about at Madison's longitude.
TornadoFan
Member
Maquoketa, IA storm is now tornado warned. Velocities are tightening.
GR2's been showing NROT values maxing out at (so far) around 1.5.
TornadoFan
Member
Wouldn't be surprised if the Rochester storm is producing another tornado.