Issued: 12am on Thursday, January 1st 1970
Technical Forecast Discussion
Short term (Sunday 1/6 through Tuesday 1/8)
Upper level ridging promotes high pressure to the south that holds enough influence to keep Sunday relatively clear. A low pressure system begins to grow as it moves through the Plains early Monday. A small upper level trough will carry it into the region Monday evening. Models show the system slowing once it nears Ohio. The center of the low will be over the Great Lakes Tuesday as the cold front slowly moves through the region. Showers are likely through Tuesday evening until it is moved out by a ridge building over the Plains on later on Wednesday.
Long term (Wednesday 1/9 through Saturday 1/12)
Upper level troughing looks to leave the area sometime Sunday. Moisture will still be in the region for the earlier part of Wednesday as the trough brings it down from the low pressure system that now hangs off the northeast coast. An absence of disturbance will bring back mid and upper level zonal flow that looks to persist through most of the forecast period. Clouds will begin to increase Saturday as upper level flow turns into a trough that helps moves a low pressure system from the Rockies into the region, possibly resulting rain showers on Sunday.