By: Stephen McCoy
The most notable change to the forecast in this update is the addition of a slight chance for showers on Friday afternoon. A cold front is still expected to move eastward through the Midwest Thursday night into Friday morning, bringing a chance for rain in the early morning and is the cause for the below normal temperatures for the weekend. Where the forecast differs from Monday's forecast is in the low to mid levels in the atmosphere, where more moist air is expected during the day. The result is a slight chance of scattered showers in central Ohio around the time of the second practice session.
However, something to mention is the models are in slight disagreement with the potential for precipitation during the day on Friday, with the GFS and ECMWF both indicating a slight chance while the NAM shows drier air in the mid levels and at the surface and no precipitation. My confidence for Friday's chances for precipitation is around 50/50, due primarily to the dispute among the models. The next update should provide a clearer picture for precipitation chances.
Conditions remain mostly consistent for Saturday and Sunday, though in contrast to the previous forecast, the GFS and ECMWF show drier air over the region on Sunday. Because of this, precipitation chances drop off with temperatures slightly lower than the previous forecast.
However, something to mention is the models are in slight disagreement with the potential for precipitation during the day on Friday, with the GFS and ECMWF both indicating a slight chance while the NAM shows drier air in the mid levels and at the surface and no precipitation. My confidence for Friday's chances for precipitation is around 50/50, due primarily to the dispute among the models. The next update should provide a clearer picture for precipitation chances.
Conditions remain mostly consistent for Saturday and Sunday, though in contrast to the previous forecast, the GFS and ECMWF show drier air over the region on Sunday. Because of this, precipitation chances drop off with temperatures slightly lower than the previous forecast.
