The City of Baltimore is set to experience a continuation of the current weather pattern as high pressure remains the dominant influence. According to the National Weather Service in Baltimore, MD/Washington, DC, the high-pressure system located off the New England coastline is expected to stay in place through the end of the week and will gradually move overhead this weekend. The forecast discussion released at 2 AM EDT on Friday indicated that the high-pressure system will then shift offshore again as next week progresses.
Today's conditions in Baltimore will be moderated by light onshore flow, which could lead to the development of additional low clouds around or shortly after daybreak. The city might see clouds and maybe a shower or two this afternoon as a low pressure develops well offshore. The National Weather Service notes that onshore flow will keep temperatures near to slightly below normal. Baltimore residents can anticipate patchy fog or low clouds tonight due to the continuing onshore flow, with lows dropping into the mid-50s to mid-60s.
Looking ahead to the weekend, surface ridging will keep the weather relatively unchanged, with light onshore flow causing temperatures to remain near to slightly below normal as the weekend begins. Conditions will start to warm on Sunday when the high begins to move offshore. As far as precipitation goes, precipitation chances will be very low (less than 10 percent) through the weekend with strong ridging overhead.
When the new workweek kicks off, residents will notice a spike in both temperatures and humidity. Temperatures will rebound well into the mid-upper 80s by Monday before jumping well into the 90s towards midweek, and humidity will increase substantially during this time as well, according to the National Weather Service's long-term forecast. These conditions could lead to a return of triple-digit heat indices, making it essential for locals to prepare for the approaching heat wave. The increase in temperatures may bring about some afternoon thunderstorms, though at this stage, they are not expected to be severe.
In terms of transportation and maritime activities, VFR conditions are expected to prevail for air travel, particularly during the daytime. Mariners should note that gusts near 20 knots are predicted this afternoon and evening over the wider waters of the Chesapeake Bay, prompting the National Weather Service to issue a Small Craft Advisory for specific zones. Minor coastal flooding is possible through the weekend, exacerbated by high astronomical tides due to the Full Moon on Saturday. This should serve as a reminder, especially for those living in Annapolis and adjacent areas.
