Theoretical and Applied Climatology

, Volume 102, Issue 3–4, pp 245–252 | Cite as

Circumglobal teleconnection and early summer rainfall in the US Intermountain West

  • Shih-Yu WangEmail author
  • Lawrence E. Hipps
  • Robert R. Gillies
  • Xianan Jiang
  • Alan L. Moller
Original Paper


Physical processes responsible for the abnormally wet condition in the Central Intermountain West (CIW) of the United States in June 2009 were investigated. It was illustrated that persistent rainy conditions over the CIW during June 2009 were associated with a pronounced circumglobal teleconnection pattern, which is characterized as a short Rossby wave train along the jet stream waveguide with a wave number 5 structure. The ascending motion and moisture flux convergence over the CIW associated with the cyclonic action center over the US West Coast in the teleconnection wave train could be essential for the persistent local rainfall during June 2009. Further analysis suggested that the June 2009 circulation pattern is consistent with a prevailing mode of the summer circumglobal teleconnection pattern. The findings in this study provide information for improved understanding of the early summer rainfall regime in the CIW.


Geopotential Height Rossby Wave Empirical Orthogonal Function Precipitation Anomaly Water Vapor Flux 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This study was supported by the USDA CSREES-funded Drought Management, Utah Project and by the Utah Agricultural Experiment Station, Utah State University, and approved as journal paper number 8164. XJ acknowledges support by NOAA CPPA program under Award NA09OAR4310191. Discussion with T.-C. Chen regarding the stationary short-wave train was much appreciated.


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Shih-Yu Wang
    • 1
    Email author
  • Lawrence E. Hipps
    • 2
  • Robert R. Gillies
    • 1
    • 2
  • Xianan Jiang
    • 3
  • Alan L. Moller
    • 1
  1. 1.Utah Climate CenterUtah State UniversityLoganUSA
  2. 2.Department of Plants, Soils, and ClimateUtah State UniversityLoganUSA
  3. 3.Joint Institute for Regional Earth System Science & EngineeringUniversity of CaliforniaLos AngelesUSA

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