The upper-level pattern over NA is set to reorganize into a western ridge & eastern trough disposition, with warmth directed towards the west coast and cooler unsettled conditions for central and eastern regions. This overall arrangement should prevail through the better part of the medium range and possibly beyond in some form.

00z GEFS 500mb height anomalies, days 6-10:


Days 11-15:


WPC total QPF for days 1-7:


New Euro weeklies will take us farther into the long range but first here’s the verification of the May 8 – 15th timeframe predicted by the May 1st run.


And the updated run extending into mid-June.