Chester River to Queenstown MD Marine Forecast
| Rest Of Today...N Winds 10 Kt With Gusts To 20 Kt. Waves 1 Ft. Patchy Fog Late This Morning. A Chance Of Rain. A Chance Of Snow Late This Morning, Then Snow Likely This Afternoon. Vsby 1 To 3 Nm. |
| Tonight...Nw Winds 5 To 10 Kt With Gusts To 20 Kt. Waves 1 To 2 Ft. A Chance Of Snow. Vsby 1 To 3 Nm. |
| Mon...Sw Winds 10 To 15 Kt...Becoming W Late. Gusts Up To 20 Kt. Waves 2 Ft. |
| Mon Night...W Winds 15 To 20 Kt. Waves 2 Ft. |
| Tue...W Winds 10 To 15 Kt With Gusts To 20 Kt. Waves 2 Ft. |
| Tue Night...Nw Winds 5 To 10 Kt...Becoming Ne After Midnight. Waves 1 Ft Or Less. |
| Wed...S Winds 10 To 15 Kt...Becoming Sw After Midnight. Waves 1 To 2 Ft. |
| Thu...W Winds 5 To 10 Kt. Waves 1 Ft. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1000am EST Sunday Jan 18 2026 .WHAT HAS CHANGED... The Winter Weather Advisory has been trimmed to northeastern Maryland. .KEY MESSAGES... - 1) Low pressure will ride along a frontal boundary today, with a second round of rain and snow possible along and east of Interstate 95 this afternoon and early evening. - 2) Very cold conditions are expected over the region Monday night through Tuesday night, with below normal temperatures continuing through the remainder of the week. - 3) A wintry precipitation threat may re-emerge by late this week. KEY MESSAGE 1...Low pressure will ride along a frontal boundary today, with a second round of rain and snow possible along and east of Interstate 95 this afternoon and early evening. The first round of precipitation has exited the area. However, there could still be some spotty flurries, or even freezing drizzle/mist as the DGZ dries out. The most likely area for this to occur appears to be across northern Maryland. At 10 AM, subfreezing temperatures are largely limited to west of the Blue Ridge and some spots across northern Maryland that saw steadier snow earlier. Thus expect minimal impacts through the remainder of the morning. Likewise, the Winter Weather Advisory has been trimmed to Harford and Cecil Counties, which is the area that is having some residual impacts from this morning's snow and is most likely to see additional snow with the second round. Some patchy fog exists for areas with snow cover, but this should clear up as northwest winds kick in this afternoon. Heading into this afternoon, a frontal wave of surface low pressure develops in response to a shortwave exiting the Southeast. This low will ride up and off the coast through this evening, with precipitation on its western periphery likely filling back in to about I-95. Incoming dry air from the west should prevent much further westward expansion barring any unforeseen significant changes with the low track/strength. This precip should be mostly snow given cold air advection, although it could start as rainacrosss southern Maryland. Downslope drying effects may be minimized given (1) a more northerly vs. northwesterly component to the low- level wind, (2) its light speed, and (3) distance from the terrain along the western shore of the Chesapeake Bay (east of I-95 essentially). Therefore, anticipate accumulating snow with this second wave mainly east of I-95 this afternoon into early this evening. If this second band does not materialize into Cecil and Harford Counties, the advisory will be canceled early. Low pressure pulls away and precipitation ends early this evening. Given cold temperatures and not a lot of wind especially this evening, any residual moisture will likely refreeze on untreated surfaces overnight given low temperatures from the mid teens to mid 20s. KEY MESSAGE 2...Very cold conditions are expected over the region Monday night through Tuesday night, with below normal temperatures continuing through the remainder of the week. An Arctic front will cross the Mid-Atlantic Wednesday, sending temperatures tumbling to some of their coldest values so far this season come Tuesday morning. The front will come through largely dry, though some mountain snow showers are possible as it crosses the Appalachians. Temperatures falling into the teens and single digits combined with blustery northwest winds Monday night into Tuesday morning will result in wind chills in the single digits are either side of 0, with negative teens and 20s over the Alleghenies. Following the front, Tuesday is going to be the coldest day of the forecast period by far. Would not expect high temperatures to exceed 30 degrees anywhere, with teens and 20s in the mountains. It will be particularly cold Tuesday night as well with lows in the single digits to teens. While not as windy, there will still be just enough to keep wind chills in the single digits for most (negatives in the mountains). A slight warmup is expected Wednesday into Thursday, with temperatures closer to average by Thursday afternoon. KEY MESSAGE 3...A wintry precipitation threat may re-emerge by late this week. A cold front looks to track across the area sometime Thursday afternoon/evening. This could bring a rain or a wintry mix to parts of the area, though precipitation chances overall are low at 15 to 20 percent due to large discrepancies in the timing of the front. Cold air surges in behind the front to close the week. Below normal temperatures will return for Friday into Saturday as high pressure returns to the region. Another potentially potent wave is hinted at by a lot of guidance (with ensemble support) later next weekend that bears monitoring. Marine Northwest winds will increase this afternoon, and likely remain elevated into the night as low pressure passes offshore with additional rain/snow possible this afternoon into the evening. A Small Craft Advisory is in effect for most of the waters for this time period. Winds shift briefly to southerly Monday morning ahead of a reinforcing Arctic front before becoming west to northwest Monday afternoon through Tuesday. Gusts of 20 to 30 knots are most likely from roughly midday Monday through Monday evening, with a general decrease in winds through Tuesday night. Winds shift back to the south Wednesday, then west and northwest Thursday with SCAs (Small Craft Advisories) possible both ahead of and behind a front that could bring some precipitation near the waters Thursday. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...Winter Weather Advisory until 6pm EST this evening for MDZ008- 507-508. Small Craft Advisory until 4am EST Monday for MDZ008. VA...None. WV...None. Marine Winter Weather Advisory until 6pm EST this evening for ANZ530. Small Craft Advisory until 4am EST Monday for ANZ530>534-537- 539>541-543. |
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