A Few Funnel Clouds Across the Western Chicago Metro Tuesday Evening

Glen Ellyn

Oak Brook

Glen Ellyn around 6 pm. Photo courtesy of Norm Ramil.

Oak Brook around 6:15.  Photo courtesy of Annie Marie.

 

 

ORD Terminal Doppler Weather Radar 1.8° Loop from ~5:30 pm - 6:45 pm

Radar Loop

Note multiple elongated boundaries that intersect and storms that develop on these.  The updrafts of these developing storms stretched pre-existing low-level "spin" and helped produce the funnel clouds.

 

ORD Terminal Doppler Weather Radar 1.8° Storm-Relative Motion indicating rotation near the cloud base level

Radar

Note multiple elongated boundaries that intersect and storms that develop on these.  The updrafts of these developing storms stretched pre-existing low-level "spin" and helped produce the funnel clouds.

Setup

 

 



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