Two lines show why the Brunswick tornado came out of nowhere

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BRUNSWICK, Ohio -- It was the tornado that seemed to come out of nowhere.

At least 10 homes were damaged in Brunswick around 7 p.m. Monday.

*Click for a look at damage photos*

The National Weather Service determined it was at least an EF1 with winds of about 110 mph or higher.

But no tornado warning was issued.

Read More: Video show flying debris during Brunswick tornado

Fox 8 Meteorologist Scott Sabol said a tornado warning was not issued by the National Weather Service because the conditions indicated on radar at the time were only marginally favorable for tornado development.

Some rotation was indicated in the clouds but not enough for a tornado warning.

Within a short period of time, a “boundary” moved south from out over Lake Erie.

Another boundary moved north from Wooster.

Both of these “boundaries” converged over northern Medina County.

Within a few minutes, a tornado formed and touched down.

Watch the video above to see these two boundaries in action.

*Check the current weather forecast here*