Document Type

Article

Publication Version

Published Version

Publication Date

10-1999

Journal or Book Title

Weather and Forecasting

Volume

14

Issue

5

First Page

771

Last Page

781

DOI

10.1175/1520-0434(1999)014<0771:CFAOLM>2.0.CO;2

Abstract

High-resolution Eta Model simulations of a strong but relatively dry late winter surface cold front that occurred during the STORM-FEST project depicted a pronounced acceleration of the front during the afternoon hours over the southern end of Lake Michigan. In this note, the impact of the lake on the front is examined. Reduced lower atmosphere turbulence due to both thermal stabilization and diminished surface roughness acting on postfrontal northerly winds increased frontogenesis strongly over the lake. The enhanced frontal circulation increased the front speed so that a noticeable frontal bulge occurred over the southern end of Lake Michigan. Some observational evidence is available to support the simulated frontal acceleration.

Comments

This article is from Weather and Forecasting 14 (1999): 771, doi: 10.1175/1520-0434(1999)014<0771:CFAOLM>2.0.CO;2. Posted with permission.

Copyright Owner

American Meteorological Society

Language

en

File Format

application/pdf

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