David M. L. Sills

 Dave Sills photo by Pat McCarthy

Photo by Pat McCarthy

Severe Weather Scientist, Environment Canada

Adjunct Professor, York University

Research Interests:  summer severe weather (including tornadoes and lightning),

low-level mesoscale boundaries (including Great Lakes
lake-breeze fronts and Alberta drylines),
and severe weather nowcasting

List of Publications

My Environment Canada Site

My Music Site

My Photography Site

My Personal Weather Station (Barrie North)

Here is what I have been up to lately...

NEW! SOLMA 'bolt from the blue' case here.

NEW! Lake-breeze front locator charts here.

NEW! Ontario Research Support Desk (RSD) *experimental* products here.

NEW! Canadian Enhanced Fujita Scale (EF-scale) rating guide REVISON 1 (English here, French here)

NEW! Geographic region names for Northern and Southern Ontario (English PDF here, French PDF here, English JPGs here)

Canadian Enhanced Fujita Scale (EF-Scale) training deck (English here, French here).

10-min mesoscale boundary analyses for the 21 Aug 2011 Goderich supercell tornado event here.

Mesoscale analyses from the BAQS-Met IOP showing detailed daily lake breeze evolution here.

Photos of the EC Automated Mobile Meteorological Observation System (AMMOS) in action

Photos of the dual-polarization radar at King City


Chase2004 “web book” documenting my first chasing trip to the US

A Short Guide to Conducting Damage Surveys

Extreme Vs. Severe Weather (Opinion)

A Lake and Land Breeze Primer (Updated)

Rare Late-Season Lake Breezes in Southern Ontario

The 1997 Effects of Lake Breezes on Weather (ELBOW) Experiment (1998)

        ELBOW 97:  July 14, 1997 sensitivity study using MC2 model 

MC2 modelling results for July 2, 1997

Drop me a line if you are so inclined…  

David M. L. Sills, PhD
King City Weather Radar Facility
14780 Jane Street

King City
, Ontario

L7B 1A3

Phone: (905) 833-3905 Ext. 235
E-Mail: David [dot] Sills [at] canada.ca  or  Dave [dot] Sills [at] rogers.com

The views expressed here are mine and reflect the official position of neither York University nor Environment Canada.

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Last update: November 2017