#BOTS fans should pay attention to next week and on Halloween. The National Weather Service in Indianapolis has this to say:
.LONG TERM /Sunday through Wednesday/... Issued at 345 AM EDT Thu Oct 22 2020 Although, the forecast will start off with unsettled weather Monday and Monday night as strong southeastward expanding Canadian high forces yet another cold front southeast across central Indiana. Deep moisture and moderately strong dynamics, including the area being in the right rear quadrant of a 140 knot upper jet over southern Ontario, suggests widespread and then good chance PoPs in the wake of the cold front Monday and Monday night. After that, not a lot of forcing as weakening Canadian high pressure builds in. That said, would not rule out a shower or midweek with cyclonic flow overhead. Finally, late in the long term, the eyes will be focusing on a potent upper vortex, that will be an early cold season wintry weather maker over the southern Plains. At this point, the GFS is trending way to fast so, so much so that even the GEFS is discounted. Prefer the slower ECMWF and ECENS, that typically verify better with these early cold season harbingers. That said, the blend was painting small PoPs through most of the rest of the long term and if there is precipitation around during the pre-dawn, some brief non-accumulating snow could briefly mix in over northwestern sections of central Indiana starting Monday night. In general, thick cloud cover and thermals support 5 to 10 degree below normal blend temperatures with afternoon highs mostly in the 50s and overnight lows in the 30s.
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