Chesapeake Bay From Sandy Point to North Beach MD Marine Forecast
| Rest Of This Afternoon...S Winds 5 Kt. Waves Flat. |
| Tonight...Se Winds 5 To 10 Kt. Waves 1 Ft. |
| Thu...S Winds 5 To 10 Kt. Waves 1 Ft. |
| Thu Night...S Winds 5 To 10 Kt. Waves 1 Ft. |
| Fri...S Winds 5 To 10 Kt. Waves 1 Ft Or Less. |
| Fri Night...S Winds 10 To 15 Kt With Gusts To 20 Kt. Waves 2 Ft. Showers Likely. |
| Sat...W Winds 5 To 10 Kt...Becoming S. Waves 1 To 2 Ft. Showers Likely In The Morning. |
| Sun...Sw Winds 10 To 15 Kt...Becoming Ne 15 To 20 Kt In The Evening, Then Becoming N 20 To 25 Kt After Midnight. Waves 1 To 2 Ft...Building To 3 Ft After Midnight. A Chance Of Rain Through The Night. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 300pm EDT Wednesday Mar 18 2026 .WHAT HAS CHANGED... There have not been any major changes to the forecast. A few fronts will bring temperature swings and at least some chance of showers and breezy conditions over the next week. .KEY MESSAGES... -1) A warming trend ensues through the end of the work week. -2) Above normal temperatures will persist until a cold front sweep through late Sunday with a chance for showers. KEY MESSAGE 1...A warming trend ensues through the end of the work week. Broad high pressure had shifted its axis east of I-95 as of mid afternoon. Earlier clouds had cleared to the east, but additional clouds were heading in from the west ahead of a weak wave. Heading into tonight, while chilly, temperatures return closer to freezing given light southerly flow. The aforementioned weak wave may have just enough lift/moisture to work with to result in a few snow showers near and west of the Allegheny Front from late this evening into the overnight. For Thursday and Friday, high pressure persists near the Eastern Seaboard. Looking aloft, northwesterly flow prevails given well above average heigheights centered over the southwestern U.S. However, the 1000-500 mb layer gradually warms through the period with 24-hour rises of around 6 to 8 dm per day. Increasing thicknesses coupled with mainly south to southwesterly flow will return temperatures to the 50s by Thursday before pushing into the low 60s on Friday. Some shower chances move into the picture by Friday evening/night as a clipper system races across the area. With Friday night's low temperatures in the 40s, it will be an all rain event. Latest 12Z guidance suggested some low chances of gusty winds especially over the higher elevations Friday night, with the potential for a thunderstorm or two as well. KEY MESSAGE 2...Above normal temperatures will persist until a cold front sweep through late Sunday with a chance for showers. On Saturday, the Mid Atlantic will be situated between high pressure over the southeast states and a low pressure system moving through the Great Lakes. Even with the passage of Friday night's front, cold advection will be minimal and transient given the anomalous warmth upstream in the central/western part of the continent. In fact, temperatures will likely be warmer Saturday than Friday with most areas reaching the 60s to lower 70s. The cold front from the Great Lakes system will slide southward Sunday into Monday, although there is still uncertainty on just how quickly it does so. Therefore, temperatures on Sunday could reach anywhere from the mid 50s to mid 70s. The current consensus is that the front will pass through Sunday night. Some rain showers will be possible along the front. Weak instability/low dew points will limit the chance for any thunderstorms, but can't totally rule out convection especially if the front were to pass during peak heating. In the wake of the front, temperatures drop back to normal or below normal values for Monday through Wednesday. Any chance for upslope snow in the wake of the front looks minimal with limited moisture and due northerly flow. High pressure building north of the area will like keep conditions dry, although model spread does start increasing during this time. A few ensemble members suggest some light overrunning moisture is possible toward the middle of the week. Marine Winds will remain southerly to southeasterly at 5-10 kts tonight. Weak gradients through Friday should limit the gust potential over the waters. Some southerly channeling effects by Friday afternoon and night which could require a Small Craft Advisory. Light westerly winds are forecast Saturday as high pressure slides by to the north. Southwest winds will be increasing Saturday night into Sunday, then a cold front will bring an abrupt shift to north- northwest Sunday night. Small Craft Advisories will likely be needed Sunday through Monday. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...None. VA...None. WV...None. Marine None. |
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