Another saturating round of showers and thunderstorms rolled through ON on schedule. Here’s EC’s current summary – http://weather.gc.ca/warnings/weathersummaries_e.html
Weather summary for Ontario and the National Capital Region updated by Environment Canada at 7:39 a.m. EDT Friday 21 April 2017. Discussion. Showers and Thunderstorms gave significant rainfall across some areas of Southwestern Ontario Thursday, April 20th. Localized street flooding was reported in areas of Dundas, Hamilton, Burlington and Stoney Creek. The following is a summary of weather event information received by Environment Canada. Summary of rainfall in the last 24 hours in millimetres up to 11 pm EDT April 20th: Hamilton Mountain: 72.4 Hamilton Airport: 46.8 Vineland: 45 Waterloo Airport: 39.5 Brantford: 39.7 Please note that this summary may contain preliminary or unofficial information and does not constitute a complete or final report. End/OSPC
A selection of precip stats across the region for April 2017 (thus far) vs normals for the month as a whole.
YHM – 104.6mm / 71.3mm
YYZ – 85.4mm / 63mm
YOW – 110.4mm / 63mm
YUL – 130.2mm / 67.7mm
A wider graphical overview of the last 30 days (Mar 21 – Apr 19) both in accumulated values and departure from averages.
Before the latest round of Euro weeklies this is the first verification from the Apr 3 run (Apr 10 – 17):
Now the latest set of images taking us well into May.
And finally yesterday’s ENSO update from the IRI with the mid-April forecast plume.
By mid-April 2017, the tropical Pacific remained in an ENSO-neutral state, with above-average SSTs present in the eastern Pacific Ocean, and near-average SSTs across the central and east-central part of the basin. Across the western and central Pacific, the pattern of cloudiness, rainfall, and winds remains suggestive of La Nina conditions. The collection of ENSO prediction models indicates increasing chances of El Nino into the summer and fall of 2017.