FORECASTER: Aurélie Desroches-Lapointe
According to GEM10, GEM25 and NAM, a deep 500hPa trough is aligned S-N above our study area, with a high pressure band over the rockies. Due to air flow coming from the NW, orographic showers and chances of storms are forecasted from now to Sunday 0600UTC. On a longer timescale, a low pressure system currently over the Pacific Ocean might start to affect our area on Monday around noon according to GEM10, and in the evening according to NAM (UTC). GEM2.5 suggests this system may barely reach our study zone. At higher elevations, 250hPa winds causing divergence, which could enhance any potential precipitation, are forecasted from Monday evening onwards.