Tidal Potomac from Cobb Island MD to Smith Point VA Marine Forecast
| Rest Of Tonight...E Winds 10 To 15 Kt With Gusts To 20 Kt. Waves 2 Ft. |
| Sun...E Winds 10 To 15 Kt With Gusts To 25 Kt. Waves 3 Ft. |
| Sun Night...Ne Winds 10 To 15 Kt With Gusts To 25 Kt. Waves 3 Ft. |
| Mon...Ne Winds 10 To 15 Kt With Gusts To 30 Kt. Waves 3 Ft. A Chance Of Rain. |
| Mon Night...Ne Winds 15 To 20 Kt With Gusts To 35 Kt. Waves 4 Ft. Rain Likely. |
| Tue...E Winds 15 To 20 Kt With Gusts To 30 Kt. Waves 4 Ft. Rain. |
| Tue Night...Se Winds 10 To 15 Kt With Gusts To 25 Kt. Waves 3 Ft. Rain Likely. |
| Wed...Se Winds 10 To 15 Kt. Waves 2 Ft. Rain Likely Through The Day, Then A Chance Of Rain Through The Night. |
| Thu...Ne Winds 5 To 10 Kt. Waves 1 To 2 Ft. A Chance Of Rain. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 732pm EDT Sat September 14 2024 Synopsis High pressure to the north will continue to impact the area locally through the weekend and into early next week. An area of low pressure is expected to form off the southeast U.S. Coast this weekend before moving northwestward toward the coast during the first half of next week. Near Term - Through Tonight Mostly dry conditions will continue tonight with lows in the 50s for most areas with low 60s possible near the waters. Cannot rule out an isolated sprinkle or patchy drizzle across central VA/southern MD as clouds move more into those areas heading into Sunday morning. Short Term - Sunday Through Monday Night High pressure to the north will continue to build further south Sunday into early next week, leading to dry conditions locally. Overcast skies will build across central VA and southern MD as an area of low pressure forms off the NC coastline. By Monday night, high pressure shifts offshore, while at the same time, coastal low pressure begins to move inland increasing the onshore flow, bringing abundant cloud cover, initially high level clouds, then lowering toward daybreak Tuesday. However, any precipitation is likely to hold off until after daybreak Tuesday. Long Term - Tuesday Through Saturday The key feature of interest next week is related to a region of either subtropical or tropical development off the Carolina coast. What remains of the surface and upper air circulation is expected to slowly lift northward in time. Ensemble surface low plots indicate there is still quite a bit of spread among the global ensemble members. Some solutions carry the system toward the Appalachians while others move east of the Delmarva Peninsula. Depending on the track, quality of tropical moisture, and speed of the system, some heavy rainfall signal may emerge. Given the current area of interest is just a blob of disorganized convection near the Gulf Stream offshore of the Carolinas, uncertainty is quite high at this point. For now, expect a multi-day period of increasing rain chances which may run through the remainder of the work week. A blocky pattern persists across North America with a rex block potentially setting up into next weekend. A meandering negative height anomaly persists over the eastern U.S. while heigheights build to its north. Where this ridge/trough couplet sets up will dictate the degree of additional shower chances. As expected, uncertainty is high through much of the period next week. Overall temperatures stay near to slightly below average next week. Clouds should be plentiful given the slug of tropical moisture surging northward into the Mid-Atlantic region. As a result, this will raise humidity levels for much of the week. Marine SCA (Small Craft Advisory) winds are likely later this evening, especially south of North Beach MD. Winds gradually strengthen Sunday into Monday with SCA (Small Craft Advisory) conditions becoming increasingly likely. The strongest winds are most likely late Monday into Tuesday. The gradient formed by high pressure to the north and low pressure approaching from the southeastern U.S. will lead to a breezy east to northeasterly wind. Current forecast gusts on Tuesday into Wednesday range from 20 to 25 knots, possibly increasing to around 30 knots over the southern waters. There is an outside chance for gale force wind gusts, but confidence is low given uncertainties in the low track and strength. Tides / Coastal Flooding Light but persistent onshore flow will cause water levels to gradually rise over the next several days. Onshore flow strengthens further Monday night into Tuesday with minor coastal flooding becoming increasingly likely by Tuesday. Depending on the strength of onshore flow and the track of low pressure to the south/southwest, near moderate flooding may be possible at vulnerable shoreline locations late Monday through Tuesday. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...Small Craft Advisory from noon Sunday to midnight EDT Sunday night for MDZ008. VA...None. WV...None. Marine Small Craft Advisory from noon Sunday to midnight EDT Sunday night for ANZ530>532-535-536-538>542. Small Craft Advisory until 6am EDT Monday for ANZ533-534-537- 543. |
Baltimore/Washington Radar
Northeast Radar
East Coast Satellite