The Association of the elevated mixed layer with significant severe
weather events in the northeastern United States
Peter C. Banacos and Michael L. Ekster
AMS Weather and Forecasting
=== Supplemental Material ===
I. Introduction
No supplemental material
II. Lapse Rate Tendency Equation
No supplemental material
III. Data and Methodology
NEUS Significant Severe Reports
(1970-2006)
IV. Synoptic Composite and Trajectory Analysis
700mb Mean Geopotential Height and
Temperature Anomaly (loop)
700mb Mean Geopotential Height and
Geopotential Height Anomaly (loop)
700mb Mean Temperature (EML
EVENTS) (loop)
700mb Mean Temperature (Significant,
non-EML EVENTS) (loop)
700-500mb Lapse Rate (EML EVENTS)
PMSL Composite (EML EVENTS)
PMSL Composite (non-EML EVENTS)
Best 4-layer Lifted Index Comparison
V. Case Studies
Worcester, Massachusetts tornado; 9 June
1953 (supplemental case)
a. Eastern New York/Western Massachusetts tornadoes; 28 August
1973
Auxillary Figures
b. Northern New England and Southern Quebec Derecho; 5 July 1999
Long-Range Composite Reflectivity 5
July 1999, 0016-1059z (KCXX, Burlington, VT)
VI. Conclusions
No supplemental material