WEEKLY EVOLUTION OF THE 2001 INDIAN SUMMER MONSOON

Spatial Patterns of Weekly Rainfall Anomalies (%)

These charts are based on the weekly mean rainfall anomalies (percentage departures from the long-term mean for the corresponding week) for 35 meteorological subdivisions of India, computed from real-time reports and published in the Weekly Weather Reports issued by the India Meteorological Department. Spatial patterns for the month of May are displayed to give the idea of Monsoon Onset. Each row of the panels corresponds to the week ending the date indicated. In each row, the three panels indicate, from left to right, the mean daily rainfall in the week, the corresponding normal for the week and the percenr the week and the percent departure.

Weeks ending on .........

May02, May09, May16

May23, May30, June06

Jun13, Jun20, Jun27

Jul4, Jul11, Jul18

Jul25, Aug1, Aug8

Aug15, Aug22, Aug 29

Sept05, Sep12, Sep19

Sep26, Oct03