A Few Funnel Clouds Across the Western Chicago Metro Tuesday Evening, June 24, 2014


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