CW3E AR Update: 01 August Outlook

August 1, 2019

Click here for a pdf of this information.

Strong and long-duration atmospheric river forecast to impact Alaska over the next several days

  • An AR is forecast to make landfall over western Alaska beginning tomorrow, 02 August 2019, and ending on 06 August 2019
  • IVT magnitudes >1000 kg m–1 s–1 are currently forecast for numerous coastal locations over western Alaska
  • AR conditions could last between 40 and 96 hours for certain coastal locations
  • Some locations in north-central Alaska could receive >4 inches of precipitation over the next 72-hours
  • The Bering Sea at Golovin is currently forecast to rise ~1ft above minor flood stage

Click IVT or IWV image to see loop of 0-180 hour GFS forecasts

Valid 1200 UTC 01 August – 0600 UTC 08 August 2019





Summary provided by C. Hecht, D. Steinhoff, J. Kalansky, F. M. Ralph; 3 PM PT 01 August 2019