Articles | Volume 4, issue 4
Research article
14 Nov 2023
Research article |  | 14 Nov 2023

The monthly evolution of precipitation and warm conveyor belts during the central southwest Asia wet season

Melissa Leah Breeden, Andrew Hoell, John Robert Albers, and Kimberly Slinski

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Cited articles

Albers, J. R. and Newman M.: Subseasonal predictability of the North Atlantic Oscillation, Environ. Res. Lett., 16, 044024,, 2021. 
Albers, J. R., Newman, M., Hoell, A., Breeden, M. L., Wang, Y., and Lou, J.: The February 2021 Cold Air Outbreak in the United States: a Subseasonal Forecast of Opportunity, Bulletin of the American Meteorological Society,, 2022. 
Barlow, M., Cullen, H., and Lyon, B.: Drought in central and southwest Asia: La Niña, the warm pool, and Indian Ocean precipitation, J. Climate, 15, 697–700,<0697:DICASA>2.0.CO;2, 2002.  
Barlow, M., Zaitchik, B., Paz, S., Black, E., Evans, J., and Hoell, A.: A Review of Drought in the Middle East and Southwest Asia, J. Climate, 29, 8547–8574, 2016. 
Breeden, M. L., Albers, J. R., and Hoell, A.: Subseasonal precipitation forecasts of opportunity over central southwest Asia, Weather Clim. Dynam., 3, 1183–1197,, 2022. 
Short summary
We compare the month-to-month evolution of daily precipitation over central southwest Asia (CSWA), a data-sparse, food-insecure area prone to drought and flooding. The seasonality of CSWA precipitation aligns with the seasonality of warm conveyor belts (WCBs), the warm, rapidly ascending airstreams associated with extratropical storms, most common from February–April. El Niño conditions are related to more WCBs and precipitation and La Niña conditions the opposite, except in January.