An 18-year climatology of hailstorm trends and related drivers across southeast Queensland, Australia

Soderholm, J. S., McGowan, H., Richter, H., Walsh, K., Weckwerth, T. M. and Coleman, M. (2017) An 18-year climatology of hailstorm trends and related drivers across southeast Queensland, Australia. Quarterly Journal of the Royal Meteorological Society, 143 703: 1123-1135. doi:10.1002/qj.2995


Author Soderholm, J. S.
McGowan, H.
Richter, H.
Walsh, K.
Weckwerth, T. M.
Coleman, M.
Title An 18-year climatology of hailstorm trends and related drivers across southeast Queensland, Australia
Journal name Quarterly Journal of the Royal Meteorological Society   Check publisher's open access policy
ISSN 1477-870X
0035-9009
Publication date 2017-01-01
Sub-type Article (original research)
DOI 10.1002/qj.2995
Open Access Status Not yet assessed
Volume 143
Issue 703
Start page 1123
End page 1135
Total pages 13
Place of publication Chichester, West Sussex, United Kingdom
Publisher John Wiley & Sons
Language eng
Abstract The southeast Queensland (SEQ) region of Australia is recognised for frequent thunderstorms documented through numerous studies including high-impact severe thunderstorm cases which have caused insured losses exceeding $1 billion AUD. Despite a modest body of scientific literature, basic questions regarding the role of climate, synoptic and local-scale (<10 km) processes affecting the variability of thunderstorms still remain. In an effort to advance these questions as part of the Coastal Convective Interactions Experiment (CCIE), this study integrates multiple datasets across an 18-year period (July 1997–June 2015) to provide a mesoscale climatological analysis of the SEQ hailstorms and associated environmental conditions. On a multi-year time-scale, the relationship between the El Niño Southern Oscillation and hailstorm frequency is consistent with previous studies. On synoptic scales, a southeasterly change situation coupled with a sea breeze was found to provide the most favourable environment for hailstorms, particularly for southwest SEQ. On the local scale, hail development within convective cells was found to be most frequent within the inland limb of the maritime air mass on sea-breeze days. This observation suggests the sea-breeze air masses may become favourable for convection after sufficient modification during inland propagation.
Keyword Australia
ENSO
Hailstorms
Sea breeze
Synoptic climatology
Weather radar
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Earth and Environmental Sciences
 
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