Chester River to Queenstown MD Marine Forecast
| This Afternoon...W Winds 10 To 15 Kt With Gusts To 20 Kt. Waves 2 Ft. |
| Tonight...Sw Winds 5 To 10 Kt. Waves 1 Ft. |
| Tue...W Winds Around 5 Kt. Waves 1 Ft Or Less. |
| Tue Night...S Winds 5 To 10 Kt. Waves 1 Ft. |
| Wed...Sw Winds 5 To 10 Kt. Waves 1 Ft. |
| Wed Night...N Winds Around 5 Kt. Waves 1 Ft Or Less. |
| Thu...Se Winds 5 Kt...Becoming S 10 To 15 Kt In The Afternoon, Then Increasing To 25 To 30 Kt. Waves 1 Ft... Building To 3 Ft. Rain Through The Night. |
| Fri...W Winds 20 To 25 Kt...Becoming Nw 5 To 10 Kt After Midnight. Waves 3 Ft...Subsiding To 2 Ft After Midnight. A Chance Of Rain In The Morning. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1013am EST Monday Dec 15 2025 Synopsis Arctic high pressure settles over the region this afternoon before shifting offshore Tuesday. This will yield a pattern change with warming temperatures heading into the middle of the week. A strong cold front will push through late Thursday, bringing the next chance for precipitation. Cooler temperatures return for the end of the week. Near Term - Through Tonight Arctic high pressure builds overhead this afternoon, resulting in temperatures nearly 15 degrees below normal. Winds will diminish this afternoon. A piece of shortwave energy on the back side of the primary upper trough that pushed through yesterday will move across the Upper Mid-Atlantic this afternoon. Some guidance tries to bring out a few flurries in far northern MD, so have kept those in the forecast. However, the probability is very low, given the ample dry air with the aforementioned arctic high. Some increasing mid-level clouds at 10am could be a sign that flurries could try to fall, but no guarantee. Very cold again tonight as high pressure settles in and winds become light. Some locations could get into the single digits. Short Term - Tuesday Through Wednesday Night Previous discussion... Arctic high pressure shifts east, and an upper ridge builds over the region Tuesday. This will result in slightly warmer temperatures, but still remaining below average. Same goes for Tuesday night, with lows jumping back into the mid to upper 20s. By Wednesday, it will be a good bit warmer, with highs actually jumping to above normal in the upper 40s to mid 50s. Long Term - Thursday Through Sunday The long term period will feature a synoptic pattern characterized by fast, quasi-zonal flow across the CONUS. Embedded disturbances within the zonal flow will lead to large swings in temperature throughout the period. High pressure will retreat offshore on Thursday as a potent shortwave and associated strong area of low pressure track through the Upper Great Lakes. Southerly flow will advect much warmer air into the region, allowing temperatures to climb into the 50s. Clouds will be on the increase, but most, if not all of the day is expected to remain dry. Rain will move in overnight as the upper trough rapidly approaches from the west. A soaking, but beneficial rainfall is expected across the entire area. A strong cold front will move through late Thursday night. The rain could potentially end as a brief period of upslope snow in the Alleghenies late Thursday night into Friday morning. Much cooler and windy conditions are expected behind the cold front on Friday. Daytime highs are expected to range from the 20s in the mountains to the 40s across the lower elevations. Gusty northwest winds will make it feel much colder, but conditions are expected to remain dry. High pressure is expected to build overhead for Friday night into Saturday. This will lead to continued dry conditions and near normal temperatures, with highs in the 40s and lows in the 20s. High pressure will move offshore on Sunday, causing southerly flow to develop once again. This will lead to an increase in temperatures, with highs in the upper 40s to 50s for most. Another fast moving disturbance may pass off to our north through the Great Lakes. Depending on how this system tracks, some showers may be possible on Sunday. Marine SCA (Small Craft Advisory) conditions will continue for another few hours before winds diminish enough with high pressure for the SCA (Small Craft Advisory) to expire. As the high passes to the southeast, SCAs (Small Craft Advisories) may be needed for parts of the waters tonight in south to southwest flow. After decreasing Tuesday, SCA (Small Craft Advisory) conditions are possible again Tuesday night in southerly channeling. Any residual southerly channeling should come to an end Wednesday morning into Wednesday afternoon. Sub-SCA (Small Craft Advisory) level winds return Wednesday afternoon and evening with high pressure nearby. SCAs (Small Craft Advisories) return late Wednesday night as south/southeasterly flow increases. At least Small Craft Advisory gusts appear likely in southerly flow on Thursday, and then northwesterly flow on Friday. Depending on the ultimate strength of the system, a few Gale gusts can't be ruled out either day. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...Low Water Advisory until 3pm EST this afternoon for MDZ008. Small Craft Advisory until 1pm EST this afternoon for MDZ008. VA...None. WV...None. Marine Low Water Advisory until 3pm EST this afternoon for ANZ530>532-535-536-538>540. Small Craft Advisory until 1pm EST this afternoon for ANZ530>543. |
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