1/5 – Rob Knight’s “Midday News” Friday/Weekend Forecast
Extensive upper-level clouds from this morning beginning to clear to the east, providing much more sunshine this afternoon…
A deep polar trough is still encompassing the eastern half of the country with a strong ridge over the west U.S. That means the main focus on the short-term forecast will be temperatures and dew-points. Slight air mass modification and full sun today should allow for temps to rise to around 50 for the entire region. A surface ridge to the north will shift east today, this will allow for winds to switch briefly to the SW then back to the NE tonight. The deep trough will begin to deamplify while lifting northeast this afternoon into Saturday. Local temperatures will respond by moderating 5 degrees or so each day. Cloud cover my begin increasing from the south and Southwest. Otherwise, quiet weather continues.
The upper trough and surface high pressure shifting east means return flow will start slowly bringing moisture back to the region. Relatively higher dew-points will be surging northward Sunday morning ahead of the next approaching system. Showers will begin developing across the area from west to east Sunday afternoon as Gulf moisture is drawn north. Good model agreement on timing and location the low has led to keeping 90 to 100% rain chances for Sunday night. The close proximity of the upper low Monday morning could lead to a few t-storms providing strong wind gusts. Rain should quickly clear out Monday late afternoon/evening.