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The North American Monsoon System: Recent Evolution and Current Status

The North American Monsoon System: Recent Evolution and Current Status. Update prepared by Climate Prediction Center / NCEP 01 July 2013. Outline. Recent Evolution and Current Conditions Summary Climatology. Rainfall Patterns: Last 7 Days.

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The North American Monsoon System: Recent Evolution and Current Status

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  1. The North American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 01 July 2013

  2. Outline • Recent Evolution and Current Conditions • Summary • Climatology

  3. Rainfall Patterns: Last 7 Days Below-average rainfall has been observed over most of the central and southern Mexico during the past week.

  4. Rainfall Patterns: Last 30 Days Above-average rainfall has been observed only over southeastern Mexico during the past 30 days.

  5. Recent Evolution: Rainfall

  6. NCEP/GFS Forecast Above-average precipitations for north and central Mexico during the next two weeks.

  7. Summary • Below-average rainfall has been observed over most of the central and southern Mexico during the past week. • Above-normal rainfall has been observed only over southeastern Mexico during the past 30 days. • NCEP GFS forecasts predict above-average precipitations for north and central Mexico during the next two weeks.

  8. ClimatologyMONSOON ONSET July 14 July 13 July 9 July 13 July 8 July 7 July 11 July 6 July 3 June 29 June 25 June 27 June 21 June 22 June 23 June 16 June 17 June 14 June 14 June 11 June 10 June 7 June 8 Higgins, R. W., Y. Chen and A. V. Douglas, 1999: Interannual Variability of the North American Warm Season Precipitation Regime. J. Clim, 17, 653-680 June 6 June 6 June 5

  9. Precipitation Climatology

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