Rounds of showers and thunderstorms will impact ON & S QC through the short range as an ULL pinwheels across the region. The slow-moving nature of this complex could lead to localized heavier amounts of moisture over the next couple of days.

18z RGEM total precip @ hour 48:

rgem_tprecip_slp_ne_17

A substantial change in the larger-scale pattern will occur through the course of the medium range, culminating in a cooldown for the west while warmth is allowed to make headway into the east.

12z EPS 850mb temp anomalies, days 1-5:

ecmwf-ens_T850aMean_namer_1

Days 6-10:

ecmwf-ens_T850aMean_namer_6

12z NAEFS temp probabilities, days 8-14:

nffdse

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