Chester River to Queenstown MD Marine Forecast
| Overnight...Nw Winds 15 To 20 Kt With Gusts To 25 Kt. Waves 2 To 3 Ft. A Slight Chance Of Rain. |
| Fri...N Winds 15 To 20 Kt With Gusts To 25 Kt. Waves 3 Ft. A Chance Of Showers. |
| Fri Night...N Winds 10 To 15 Kt With Gusts To 25 Kt. Waves 2 Ft. A Chance Of Showers. |
| Sat...Nw Winds 10 To 15 Kt With Gusts To 25 Kt. Waves 2 To 3 Ft. |
| Sat Night...Nw Winds 10 To 15 Kt With Gusts To 25 Kt. Waves 2 To 3 Ft. |
| Sun...Nw Winds 5 To 10 Kt With Gusts To 20 Kt. Waves 2 Ft. |
| Sun Night...Nw Winds 5 To 10 Kt With Gusts To 20 Kt. Waves 1 To 2 Ft. |
| Mon...N Winds 5 To 10 Kt. Waves 1 Ft Or Less. |
| Tue...Nw Winds Around 5 Kt. Waves 1 Ft Or Less. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 324am EST Fri Nov 13 2026 .WHAT HAS CHANGED... No substantial changes were made to the snowfall forecast for the mountains over the next couple of days. Made substantial edits to the Marine Discussions, including the extension of ongoing Small Craft Advisories. Added a short fire weather touch on breezy conditions and lower RHs in the coming days. See below for details. .KEY MESSAGES... - 1) First snowfall for parts of the Alleghenies with spotty showers & brisk conditions elsewhere through Saturday. - 2) Below normal temperatures and dry condtions are expected Monday and Tuesday before a warm up occurs. KEY MESSAGE 1... First snowfall for parts of the Alleghenies with spotty showers & brisk conditions elsewhere through Saturday. Latest surface analyses and satellite data depict low pressure moving well off to our northeast and occluding off the NJ/NY coast. Mosaic radar imagery depicts some showers moving out of southeastern PA into NJ at this time, which is pretty in line with most model guidance at the moment. A broad upper low sits to our north, with numerous pieces of upper-level energy rotating about it's axis. There is also some lingering moisture impacting western Highland and Pendleton counties in the form of some light snow showers, where and SPS is in effect through daybreak. This activity will come to an end by mid-morning as the moisture source for this gets cut off. One of these pieces of energy moves through later this morning, and interacts with the aforementioned occluding boundary offshore. This may be enough to throw some showers back into northeast MD on the back side of the departing low. Otherwise, most areas likely stay mostly dry for much of the day. As flow turns more northwesterly aloft throughout the day, we start to get a bit more of a connection to the moisture source off the Great Lakes moving towards the Allegheny Front. This will lead to another round of upslope snow shower activity by tonight into early Saturday. These will of course be maximized at elevations above 2000 feet and in particular the upslope favored zones of western Garrett, western Pendleton, and western Grant counties. If travel disruptions were to materializes, expect impacts to US-219 from the MD/PA line to WV line, US-48 from Mount Storm, WV west to Davis, WV, and US-33 west of Franklin, WV. Snow accumulations will remain on the order of a coating to 2" with the greater probabilities of 1-2" with localized 3" amounts above 3000 feet pending any squalls/streamers (mainly late Friday night through Saturday midday). KEY MESSAGE 2...Below normal temperatures and dry condtions are expected Monday and Tuesday before a warm up occurs. Heigheights will start rising Monday as the amplified upper level patterns slowly progresses eastward. Winds should be much less noticeable by Monday and Tuesday as the surface high finally reaches the Mid Atlantic, although temperatures remain below normal. Given the lighter winds, the subsequent nigheights could turn out colder in many areas, with widespread near or below freezing temperatures outside of the urban centers and tidal shoreline. Since this will be more than two weeks after the average first freeze, no frost/freeze headlines will be issued. Further upper level amplification will likely happen toward mid week. While a trough or low could develop toward the southeast coast, it appears that ridging will dominate the Mid Atlantic, maintaining dry conditions through next week. The ridging will also lead to a warming trend, with high temperatures rising back into the 60s for many areas Wednesday and especially Thursday. Marine Small Craft Advisories in effect for all waters through this evening as winds strengthen in the wake of yesterday's frontal passage. Over the open waters, wind gusts of 30 knots are expected, with 20 to 25 knots elsewhere. Winds will taper off over the Potomac overnight before picking up again on Saturday. As such, SCAs (Small Craft Advisories) were dropped there tonight, but then they are in effect again all day Saturday. Winds may diminish some on Sunday, but gusts up to 20 knots remain possible, so SCAs (Small Craft Advisories) likely will be needed for portions of the waters, if not all of them, yet again. Northwest winds will weaken Sunday night into Monday as high pressure approaches, but marginal advisory conditions may continue through the day. Sub- advisory winds are likely by Monday night and Tuesday as the high builds overhead. Fire Weather Over the next several days, breezy conditions will continue with afternoon RH values dipping into the 30s to low 40s in the valleys. Wouldn't be shocked to see some areas drop lower, perhaps closer to the upper 20s in the typical dry spots in the valleys out west following frontal passages. Given recent fire activity in the past several days, there could be some issues each afternoon when winds peak and RHs drop to their lowest. Winds will begin to taper off early next week, but RHs will remain low, and potentially even be a bit drier, so would not be surprised if early next week has a day that needs closer attention as well. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...None. VA...None. WV...None. Marine Small Craft Advisory until 6pm EST Saturday for ANZ530>534- 537>543. Small Craft Advisory until 6pm EST this evening for ANZ535- 536. Small Craft Advisory from 9am to 6pm EST Saturday for ANZ535- 536. |
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