Baltimore Harbor & Patapsco River Marine Forecast
| Rest Of This Afternoon...Se Winds 5 Kt. Waves Flat. |
| Tonight...Se Winds Around 5 Kt. Waves Flat. |
| Sat...Se Winds Around 5 Kt. Waves Flat. |
| Sat Night...Se Winds Around 5 Kt. Waves Flat. |
| Sun...N Winds 5 To 10 Kt. Gusts Up To 20 Kt In The Afternoon. Waves 1 Ft Or Less. |
| Sun Night...N Winds 5 To 10 Kt With Gusts To 20 Kt. Waves 1 Ft. |
| Mon...Ne Winds 5 To 10 Kt...Becoming Se After Midnight. Waves 1 Ft. A Chance Of Snow In The Evening. A Chance Of Freezing Rain, Snow And Sleet After Midnight. |
| Tue...S Winds Around 5 Kt. Waves 1 Ft. A Chance Of Rain And Freezing Rain In The Morning, Then Rain Likely. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 233pm EST Fri Feb 27 2026 .WHAT HAS CHANGED... Main change with the latest model guidance, with respect to the Monday/Tuesday system, was a slower onset of precipitation. Thinking remains similar regarding p-types for now. However, some questions regarding how far south the storm will be suppressed, owing to a very strong arctic high to the north. .KEY MESSAGES... -1) A marginal winter storm event could impact the area between Monday and Tuesday, followed by a warming trend later in the week. -2) A warming trend will take place through Saturday with potential for morning fog. KEY MESSAGE 1...A marginal winter storm event could impact the area between Monday and Tuesday, followed by a warming trend later in the week. Moisture overrunning a cold high pressure system still looks set to impact the region starting on Monday and into Tuesday, though confidence remains low on local winter impacts. Marginal temperatures ranging from the mid-20s overnight to the 30s during the day means that a range of snow, freezing rain/sleet, and cold rain could intermittently impact areas as the system evolves, with slightly higher chances of consistent snow/ice accumulation in higher elevation areas out over the Alleghenies. Model runs over the past day and a half or so have shown a slight downward trend in the projected overall severity of this event here in the Mid-Atlantic, but total accumulations and system track are still highly variable at this point in time. A warming trend should occur after this system passes through on Wednesday, although a secondary low could also bring additional showers to the region in the midweek timeframe as well. A zonal pattern aloft stays consistent throughout the week, causing the frontal zone to stall somewhat. More details on this system should emerge once the early week's event setup becomes more definitive. KEY MESSAGE 2...A warming trend will take place through Saturday with potential for morning fog. A bit more cloud coverage than anticipated for much of the area today, largely lingering from the morning fog/low clouds. This hasn't impacted temperatures much though, as there have still been plenty of breaks to allow for plenty of sun to shine through. Surface high pressure will slide a little to the south and east tonight, which may result in more of a southerly gradient. However, light winds and mostly clear skies will still be in place. Current model guidance isn't quite as robust with the signal for fog, but at least some patchy fog could develop again. Best chance looks to be along and just west of the Chesapeake Bay, and perhaps again down in the valleys out west. Warm advection will be maximized Saturday as the high departs and low pressure passes well to the north in Quebec. While there is some uncertainty with how quickly the trailing cold front makes it into the area, the daytime should still feature a fair amount of sunshine. Temperatures will soar into the 60s for most, with some even close to 70 across central/southern VA and into the Shenandoah Valley. Marine High pressure will provide light winds through Saturday night, generally south or southeast in direction. Some patchy dense fog is possible over portions of the Chesapeake Bay, mainly north of the Bay Bridge. Wind then begin to pick up behind a cold front Sunday, with SCAs becoming more likely by Sunday afternoon/evening. Winds between 15-20 knots possible Monday before decreasing over Monday night and Tuesday in the wake of an incoming cold front. Small Craft Advisories could be necessary into Monday afternoon. A southerly wind shift could occur Tuesday after the front pushes northward. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...None. VA...None. WV...None. Marine None. |
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