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What happened last night

Each red dot on the map above indicates a reported tornado.  The big question in people’s minds is what happened to create the storms that spawned so many tornadoes last night.  The most obvious factor is the cold front headed our way.  It hasn’t passed yet and is weakening slightly, but it is forcing a more warm and humid air mass toward us. We also had lots of moisture coming up from the south.  Moisture is a key ingredient in storm development.  Our wildcard for the day, though, was an extra little boundary.  Basically a boundary is a disturbance in…

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A look at Monday night’s funnel clouds and tornadoes

A very interesting series of storms, originating from a single storm that strengthened over central Indiana, west of Indianapolis, around 5 on Monday afternoon held onto its strength as it moved into northeast Indiana.