Tidal Potomac from Key Bridge to Indian Head MD Marine Forecast
| Rest Of Today...N Winds 10 Kt. Waves 1 Ft. |
| Tonight...Ne Winds 5 Kt. Waves Less Than 1 Ft. |
| Tue...Ne Winds 5 To 10 Kt. Waves 1 Ft. |
| Tue Night...Nw Winds Around 5 Kt. Waves 1 Ft. |
| Wed...N Winds Around 5 Kt. Waves 1 Ft. |
| Wed Night...S Winds Around 5 Kt. Waves 1 Ft Or Less. |
| Thu...W Winds Around 5 Kt. Waves 1 Ft. |
| Fri...W Winds Around 5 Kt. Waves 1 Ft. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1030am EDT Monday Jun 1 2026 .WHAT HAS CHANGED... Small Craft Advisories expanded to all waters later this evening into early Tuesday morning as low pressure passes south and east of the area. Coastal Flood Advisories will expire later this morning as tide levels fall. .KEY MESSAGES... 1) Below normal temperatures continue through Wednesday with a chance of a mountain shower or thunderstorm Tuesday. 2) More of a summertime pattern Thursday into the weekend as temperatures warm and thunderstorm chances increase. KEY MESSAGE 1... Below normal temperatures continue through Wednesday with a chance of a mountain shower or thunderstorm Tuesday. A cold front will continue to sag south and east of the area today leading to an uptick in north to northeasterly winds as well as mid/high level cloud cover. A sprinkle cannot be ruled out over the lower bay and northern neck of VA through mid-afternoon although most locations will remain dry. High temperatures will once again be below average in mid to upper 70s (60s over the mountains). Lows tonight will fall back into the upper 40s and mid 50s under clearing skies. By Tuesday, we watch a sharpening trough over the Mid-Atalntic/East Coast and deepening low pressure off the southeast US coast. The sharpening trough and resultant piece of weak shortwave energy looks to push across the area late Tuesday morning into Tuesday afternoon touching off a few showers and isolated thunderstorms. This threat will be brief and mainly tied to the mountains given better lift. Precipitation will be limited with most seeing nothing at all. Meanwhile , coastal low pressure will track up along the southeast US coast and toward the Carolinas Wednesday before pushing out to sea Thursday. This is due in part to broad 1024-1028 mb high pressure shunting south from the Great Lakes region. In turn, expect below normal temperatures to continue with highs Tuesday in the upper 60s and low 70s. Overnight lows Tuesday night will fall back into the 40s and 50s. The warming trend ensues Wednesday as high pressure settles overhead. Expect highs back closer to normal with many locations pushing 80 degrees. Humidity will remain low along with little to no rain through the midweek period. KEY MESSAGE 2... More of a summertime pattern Thursday into the weekend as temperatures warm and thunderstorm chances increase. Broad 1024-1027 mb high pressure meanders over the central Apps Thursday before shifting south and east Friday into Saturday as upper level ridging builds over the region. This will lead to a gradual uptick with highs each afternoon in the mid 80s to low 90s and overnight lows in the mid 50s and low 60s. Lows Saturday night will warm into the 60s and 70s as return flow increases ahead of the upper level trough and resultant cold front set to sag south for back half of the weekend. Meanwhile, the upper level trough over central Canada will continue to eject south and east with the resultant cold front dropping down from the Great Lakes and Ohio River Valley late Saturday into Sunday. Current 06z/12z deterministic/ensemble suites hold the boundary to the north Saturday before allowing it to gradually sag south Sunday into early next week. A lot of the guidance washes the boundary out over the area Monday into Tuesday. With the front in vicinity of the area and pieces of energy rippling along it, expect an increase in showers/thunderstorms this weekend into early next week. The severe risk appears low at this time, but some low-end probabilities are lighting up as this system moves through (such as CSU Machine Learning/CIPS/NSSL Probabilities and NCAR's Medium-Range AI Convective Hazards forecast). The timing of front is still subject to change given that it is a week out, but it does hint that this associated frontal boundary will likely be the next chance for widespread rainfall within the region. Highs this weekend will push into the upper 80s and low 90s with overnight lows in the mid 60s and low 70s. Slightly cooler conditions are expected early next week pending the placement of the frontal boundary. Humidity will also return during the period. Marine A dry cold front will push south midday, turning winds out of the north once again. For at least a time in the wake of the front, there may be a few 20-knot gusts. This possibility has become a bit more likely, so have opted to hoist an SCA (Small Craft Advisory) this afternoon. Increasing easterly flow tonight also lead to SCAs (Small Craft Advisories) across all waters. For Tuesday into Wednesday, the strength of north or northeast winds is a bit uncertain. The need for SCAs (Small Craft Advisories) will likely depend on the position and strength of an area of low pressure that will be developing off the Carolina coast. Winds fall below SCA (Small Craft Advisory) levels Thursday, with marginal SCA (Small Craft Advisory) conditions over wider waters possible Friday evening. Winds generally flow southerly, with gusts falling below SCA (Small Craft Advisory) levels over the weekend. Showers and thunderstorms may impact mariners/boaters on both Saturday and Sunday afternoons. Tides / Coastal Flooding Coastal Flood Advisories will be allowed to expire before noon today as water levels decrease. A cold front will lower water levels later this afternoon, but they might rise again toward the middle of the week depending on the position and strength of low pressure developing off the coast. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...Small Craft Advisory from 8pm this evening to 2am EDT Tuesday for MDZ008. Coastal Flood Advisory until 1pm EDT this afternoon for MDZ508. VA...Coastal Flood Advisory from 8am to 11am EDT Tuesday for VAZ054. WV...None. Marine Small Craft Advisory from 8pm this evening to 2am EDT Tuesday for ANZ530>532-535-536-538>540. Small Craft Advisory from 2pm this afternoon to 2am EDT Tuesday for ANZ533-541-542. Small Craft Advisory from 2pm this afternoon to 11am EDT Tuesday for ANZ534-537-543. |
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