A Climatology of Cold-Season Nonconvective Wind Events in the Great Lakes Region
Public Deposited- Creator
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Lacke, Matthew C.
- Other Affiliation: Jefferson County Department of Health
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Knox, John A.
- Other Affiliation: University of Georgia
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Frye, John D.
- Other Affiliation: University of Georgia
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Stewart, Alan E.
- Other Affiliation: National and Kapodistrian University of Athens
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Durkee, Joshua D.
- Other Affiliation: University of Georgia
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Fuhrmann, Christopher M.
- Affiliation: University of North Carolina at Chapel Hill
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Dillingham, Sarah M.
- Other Affiliation: University of Georgia
- Abstract
- A 44-yr climatology of nonconvective wind events (NCWEs) for the Great Lakes region has been created using hourly wind data for 38 first-order weather stations during the months of November through April. The data were analyzed in terms of the two National Weather Service (NWS) criteria for a high-wind watch or warning: sustained winds of at least 18 m s-1for at least 1 h or a wind gust of at least 26 m s-1for any duration. The results indicate a pronounced southwest quadrant directional preference for nonconvective high winds in this region. Between 70% and 76% of all occurrences that satisfied the NWS criteria for NCWEs were associated with wind directions from 180° through 270°. Within the southwest quadrant, the west-southwest direction is preferred, with 14%-35% of all NCWEs coming from this particular compass heading. This directional preference is borne out in five out of six stations with high occurrences of cold-season NCWEs (Buffalo, New York; Dayton, Ohio; Lansing, Michigan; Moline, Illinois; Springfield, Illinois). Given the geographic spread of these stations, a nontopographic cause for the directional preference of cold-season NCWEs is indicated. The connection between NCWEs and low pressure systems found in this climatology and in case studies suggests that midlatitude cyclone dynamics may be a possible cause of the directional preference.
- Date of publication
- 2007
- Keyword
- Great Lakes region
- storms
- Analyse série temporelle
- Occurrence frequency
- Climatologie
- Donnée observation
- Tempête
- time series analysis
- Severe weather warning
- 1950-2000
- North America
- Vitesse vent
- Wind field
- Région Grands Lacs Amérique
- Distribution vent
- Gust
- Climatology
- Bulletin alerte météorologique
- Fréquence apparition
- Temps violent
- Observation data
- Severe weather
- Rafale
- Amérique du Nord
- Wind velocity
- DOI
- Identifier
- Publisher DOI: https://doi.org/10.1175/2007JCLI1750.1
- Onescience id: da46f0d480371bbf77c73c34e5d54bed15c2e317
- Resource type
- Article
- Rights statement
- In Copyright
- Journal title
- Journal of Climate
- Journal volume
- 20
- Journal issue
- 24
- Page start
- 6012
- Page end
- 6022
- Language
- English
- ISSN
- 1520-0442
- 0894-8755
Relations
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- In Collection:
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