.LONG TERM /Tuesday Night through Saturday/... Issued at 142 PM EST Sat Nov 11 2017 Quasi-zonal flow ends going into this period as several mid/high level shortwave troughs will move over the area and bring periods of rain. First wave will move from Alberta into the Great Lakes Tuesday and Wednesday bring the first round of rain, then the next one will move from the Pacific Northwest into the Plains starting precipitation possibly as early as Thursday night, more likely on Friday into early Saturday. There is low confidence in the precipitation starting as early as Thursday like the Euro, but maybe wait until Friday afternoon, which is what the GFS is leaning towards. Both models bring a southerly advection of moisture northward into the area, so there may be some moderate rainfall with each of these systems. At this point in time, it looks like the Friday system, but will keep a low confidence right now on the timing/intensity of the second storm system. Temperatures are forecast to be into the lower half of the 50s Tuesday through Thursday before falling into the 40s again Saturday. Low temperatures will generally be in the mid or upper 30s with the exception of Friday morning when lows are forecast in the low/mid 40s.
The NWS long range forecast discussion for our area next week
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