Document Type

Article

Publication Date

2021

DOI

10.3390/ijgi10050310

Publication Title

ISPRS International Journal of Geo-Information

Volume

10

Issue

5

Pages

1-15

Abstract

This study evaluates the spatial-temporal patterns in Virginia tornadoes using the National Weather Service Storm Prediction Center’s Severe Weather GIS (SVRGIS) database. In addition to descriptive statistics, the analysis employs Kernel Density Estimation for spatial pattern analysis and space-time cubes to visualize the spatiotemporal frequency of tornadoes and potential trends. Most of the 726 tornadoes between 1960–2019 occurred in Eastern Virginia, along the Piedmont and Coastal Plain. Consistent with other literature, both the number of tornadoes and the tornado days have increased in Virginia. While 80% of the tornadoes occurred during the warm season, tornadoes did occur during each month including two deadly tornadoes in January and February. Over the 60-year period, a total of 28 people were killed in the Commonwealth. Most tornado activity took place in the afternoon and early evening hours drawing attention to the temporal variability of risk and vulnerability. Spatial analysis results identify significant, non-random clusters of tornado activity and increasing temporal frequency. While this study improves weather-related literacy and addresses a need in the Commonwealth, more research is necessary to further evaluate the synoptic and mesoscale mechanisms of Virginia tornadoes.

Comments

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

ORCID

0000-0002-8897-3901 (Allen, Michael)

Original Publication Citation

Allen, M. J., Allen, T. R., Davis, C., & McLeod, G. (2021). Exploring spatial patterns of Virginia tornadoes using kernel density and space-time cube analysis (1960–2019). ISPRS International Journal of Geo-Information, 10(5), 310, pg. 1-15. http://dx.doi.org/10.3390/ijgi10050310

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