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. 2019 Jul 16;9:10321. doi: 10.1038/s41598-019-46719-2

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Surface pressure anomalies associated with rainfall extremes. Composite evolution of daily surface pressure anomalies for (a) large (b) medium and (c) small extreme rainfall events. Here, day 0 is the day of the Extreme Rainfall Event; day(−2) and day(−7) respectively indicate two and seven days before the event. The dotted contours indicate the regions that have significant anomalies at the 99% confidence level (using t-test). The data is obtained from the National Centers for Environmental Prediction (NCEP) reanalysis for the period 1951–2015.