Tangier Sound and the inland waters surrounding Bloodsworth Island Marine Forecast
| This Afternoon...Sw Winds 20 Kt With Gusts To 30 Kt... Becoming W 30 Kt Late. Waves 2 To 3 Ft. Rain. |
| Tonight...W Winds 25 To 30 Kt. Waves 3 Ft. |
| Tue...W Winds 20 To 25 Kt With Gusts To 30 Kt. Waves 3 Ft. |
| Tue Night...W Winds 15 To 20 Kt. Gusts Up To 30 Kt... Diminishing To 20 Kt After Midnight. Waves 2 Ft. |
| Wed...W Winds 10 To 15 Kt With Gusts To 20 Kt. Waves 1 To 2 Ft. |
| Wed Night...W Winds 15 To 20 Kt. Waves 2 Ft. |
| Thu...Nw Winds 10 To 15 Kt. Waves 1 To 2 Ft. |
| Fri...W Winds 5 To 10 Kt...Becoming 5 Kt. Waves 1 Ft. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1015am EST Monday Dec 29 2025 Synopsis A strong cold front will pass through the area today. An upper- level trough will remain overhead through Tuesday before a reinforcing cold front passes through the area late Wednesday into Thursday. High pressure will briefly return for Friday before low pressure passes nearby or to our south during the Saturday. High pressure will return for Sunday. Near Term - Through Tonight A powerful cold front now essentially bisects the forecast area. East of the boundary, temperatures are in the mid 50s with generally light southerly winds. West of the boundary, winds are quickly picking up out of the west as expected, along with a drop in temperatures into the 40s (low 30s in the mountains). Thus far, the forecast is panning out about as expected, though perhaps the winds are not picking up quite as quickly as anticipated. As the cold front sweeps through today, a sudden wind shift to the west and northwest is expected along with strong winds and rapidly falling temperatures. A few showers will likely accompany the frontal passage as well. A strong gradient and pressure rises combined with strong cold and dry air advection will allow for strong winds aloft to mix down to the surface. A High Wind Warning is in effect for the Allegheny Highlands through tonight and a Wind Advisory is in effect for most other locations (exception across portions of the VA Piedmont) through this evening. Wind gusts around 60 to 65 mph are expected across the Allegheny Highlands and Blue Ridge Mountains with 45 to 55 mph most likely across most other locations. The strongest winds are expected this afternoon into this evening. There is some concern for 60 mph wind gusts to spill further east into the I-81 corridor and metro areas, and this can be seen in the latest NBM probs showing a chance for peak gusts around 50 knots. Confidence is not high enough for a High Wind Warning at this time since bufkit soundings show the 50 knots at the top of the mixing layer with a little directional shear. Winds may diminish some later tonight due to the loss of mixing, but blustery and very cold conditions are expected. Wind chills late tonight will dip into the single digits and teens for most locations with below zero along the ridges. Upslope snow showers are likely behind the cold front for locations along/west of the Allegheny Front this afternoon through tonight. The steadiest snow is expected to be this evening where soundings show decent alignment with low-level moisture, a little instability, and the DGZ. A Winter Weather Advisory is currently in effect for these areas. The forecast is currently for around 2 to 5 inches of snow overall, but could see some isolate spots get up to around the 90th percentile, which is around 6 inches. Given the very cold temperatures and strong winds, near blizzard conditions are expected intermittently today. Considered a Blizzard warning, but thinking is that blizzard conditions (1/4 mile with 35+ mph for 3 consecutive hours or more) will be more localized throughout time vs widespread. Short Term - Tuesday Through Wednesday Night Low pressure will slowly pass through eastern Canada Tuesday while the upper-level trough remains overhead. A strong gradient between that low and high pressure over the central CONUS will result in more blustery west to northwest winds. A High Wind Warning remains in effect for the Allegheny Highlands and Blue Ridge Mountains. A Wind Advisory may be needed for locations near/north of I-70 into the eastern Panhandle of WV and extreme northern VA, but confidence is too low to extend headlines as of now. The strongest winds will be through midday before gradually diminishing throughout the afternoon into Tuesday evening. Highs will range from the teens in the mountains to the 20s and 30s for most other locations, but the brisk winds will keep wind chills in the teens and 20s for most areas with below zero to single digits in the mountains. An upper-level disturbance associated with the northern stream of the jet will pass through the area Tuesday night into early Wednesday morning. This system will lack moisture, but a period of light snow cannot be ruled out along with the passage of this system. As of now, the probability is low enough not to be reflected in the forecast, but it is nonzero. The most likely scenario is for any light snow to be along/west of the Allegany Front, but this will continue to be monitored to see if trends increase for a little light snow east of the mountains. Dry and chilly conditions are expected behind the disturbance for later Wednesday into Wednesday night. However, another upper-level disturbance and its associated cold front will approach the area late Wednesday night. This system may be a little stronger. A period of light snow is possible east of the mountains, and if this comes to fruition it could cause an impact late New Years Eve into New Years Day. For locations along/west of the Allegheny Front, an upslope component to the low-level flow along with saturation, alignment with the DGZ, and forcing from the boundary/disturbance suggests that there is a likelihood for accumulating snow. With high snow-liquid ratios, later shifts may consider issuing a Winter Storm Watch for these areas. Long Term - Thursday Through Sunday An upper-level disturbance and its reinforcing cold front will move off to the east Thursday morning. A little light snow cannot be ruled out east of the mountains, and accumulating snow is likely along/west of the Allegheny Front. High pressure will build overhead for later Thursday through Friday, bringing dry and cold conditions. Low pressure will pass nearby or to our south Saturday. If the system tracks far enough to the north, a period of rain or wintry mix/snow is possible, but confidence is low at this time. High pressure will most likely return to end the weekend with dry and chilly conditions. Marine A south to southwest flow will continue ahead of a strong cold front through late this morning. Winds have actually diminished a good bit in the early to mid-morning hours, with many spots even below SCA (Small Craft Advisory) criteria. The strong cold front will pass through the waters between 17Z and 19Z, and a sudden wind shift to the west and northwest is expected along with strong winds. A few showers are accompanying this frontal passage, but will bring little impact. A Gale Warning is in effect for the waters today through this evening. Gusts around 40 to 45 knots are most likely, especially this afternoon into this evening. Given the sudden drop in winds this morning, followed by the rapid shift/onset of Gale conditions, and SMW will likely be issued when Gale-force winds are expected to begin, especially given the magnitude of winds expected today. Winds will subside a little late tonight into Tuesday, but remain gusty. A Gale Warning is in effect for the upper Tidal Potomac River late tonight as well as the upper and middle portions of the Bay. The Gale Warning may need to be extended further south, but confidence is too low at this time. Either way, it will be windy with gusts around 35 knots in the northern portions of the waters and gusts around 30 knots in the southern portions of the waters through most of Tuesday. Winds will gradually diminish Tuesday night, but an SCA (Small Craft Advisory) will likely be needed during this time and continuing through most of Wednesday. A weaker gradient may bring lighter winds late in the week. Tides / Coastal Flooding Tide levels will be elevated through early this afternoon in a southerly flow. Had to issue a Coastal Flood Advisory for Annapolis for the upcoming high tide at 12:40pm this afternoon. There is a chance that strong westerlies get in there just early enough to tank anomalies before hitting minor, but at this point it was too close and ultimately decided to issue. Either way, it will briefly touch minor, and then drop substantially from this afternoon onward. A strong and persistent offshore flow is expected later this afternoon through Tuesday night. Tidal blowout conditions are possible tonight through Tuesday night. A Low Water Advisory may be needed. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...Wind Advisory until 1am EST Tuesday for DCZ001. MD...Gale Warning until 6pm EST Tuesday for MDZ008. Wind Advisory until 1am EST Tuesday for MDZ003>006-008-011- 013-014-016>018-503>508. Small Craft Advisory from 6pm Tuesday to 6am EST Wednesday for MDZ008. Coastal Flood Advisory until 2pm EST this afternoon for MDZ014. High Wind Warning until 4pm EST Tuesday for MDZ501-502-509- 510. Winter Weather Advisory until 10am EST Tuesday for MDZ509-510. VA...Wind Advisory until 1am EST Tuesday for VAZ025>031-036>040- 053-054-501-505-506-526-527. High Wind Warning until 4pm EST Tuesday for VAZ503-504-507- 508. WV...Wind Advisory until 1am EST Tuesday for WVZ050>053-055. High Wind Warning until 4pm EST Tuesday for WVZ501>506. Winter Weather Advisory until 10am EST Tuesday for WVZ501-505. Marine Gale Warning until 6pm EST Tuesday for ANZ530>532-535-538>540. Wind Advisory until 1am EST Tuesday for ANZ530. Small Craft Advisory from 6pm Tuesday to 6am EST Wednesday for ANZ530>532-538>540. Gale Warning until 6am EST Tuesday for ANZ533-534-536-537- 541>543. Small Craft Advisory from 6am Tuesday to 6am EST Wednesday for ANZ533-534-537-541>543. Small Craft Advisory from 6pm to 9pm EST Tuesday for ANZ535. Small Craft Advisory from 6am to 9pm EST Tuesday for ANZ536. |
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