Marine Weather and Tide Forecast for Quantico, VA
April 18, 2024 4:30 AM EDT (08:30 UTC) Change Location
 | Sunrise 6:26 AM Sunset 7:50 PM Moonrise 1:57 PM Moonset 3:17 AM |
ANZ536 Tidal Potomac From Indian Head To Cobb Island- 144 Am Edt Thu Apr 18 2024
Overnight - W winds 5 to 10 kt. Waves 1 ft.
Thu - NW winds 5 to 10 kt. Waves 1 ft.
Thu night - NE winds 5 to 10 kt. Waves 1 ft.
Fri - SE winds 5 kt. Waves less than 1 ft. A chance of showers.
Fri night - NE winds around 5 kt. Waves 1 ft. A chance of showers.
Sat - NW winds 5 to 10 kt. Waves 1 ft.
Sat night - NW winds 5 to 10 kt. Waves 1 ft.
Sun - NW winds 5 to 10 kt - .becoming ne. Waves 1 ft.
Mon - N winds 5 to 10 kt - .becoming s. Waves 1 ft.
ANZ500 144 Am Edt Thu Apr 18 2024
Synopsis for the tidal potomac and md portion of the chesapeake bay -
a stationary front will linger nearby tonight before a cold front tracks through on Thursday morning. A stronger cold front approaches the region on Friday into Saturday morning. High pressure gradually pushes in from the west by late in the weekend. Small craft advisories may be needed at times from Thursday into the weekend.
a stationary front will linger nearby tonight before a cold front tracks through on Thursday morning. A stronger cold front approaches the region on Friday into Saturday morning. High pressure gradually pushes in from the west by late in the weekend. Small craft advisories may be needed at times from Thursday into the weekend.
Area Discussion for - Baltimore, MD/Washington
(hide/show) HelpNOTE: mouseover dotted underlined text for definition
FXUS61 KLWX 180800 AFDLWX
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 400 AM EDT Thu Apr 18 2024
SYNOPSIS
A slow moving warm front will exit the local area this morning while a weak cold front tracks through later today. High pressure briefly builds in before a stronger cold front pushes across the region Friday evening into the night. High pressure returns late in the weekend into early next week.
NEAR TERM /THROUGH TONIGHT/
A long-lived outflow boundary which pushed toward the south and east has essentially stabilized the atmosphere over the area.
Some light radar echoes are noted near the Mason-Dixon Line in northeastern Maryland. However, their innocuous appearance suggests any shower activity is quite light.
The other piece to the forecast is a wavy warm front which currently arcs from the eastern West Virginia panhandle out into the central Chesapeake Bay. To the north within the cool sector, low clouds and patchy fog have developed over the past several hours. Visibilities have generally bottomed out between 3 and 5 miles which suggests any threat for dense fog should be minimal.
The thick stratus deck is likely to persist until the upstream cold front eventually scours out the residual moisture over the area.
This relatively weak cold front is presently over central West Virginia into western Pennsylvania. The latest forecast indicates a midday frontal passage with a shift to northwesterly winds in the wake. Gusts up to 15 to perhaps 20 mph are possible during the afternoon hours as the boundary layer becomes better mixed. The net downsloping effect behind this front will yield a warm mid-April day across the Mid-Atlantic.
As 850-mb temperatures rise into the 10 to 12C range, dry adiabatic mixing would yield upper 70s to low 80s. This is indeed the forecast for the D.C. metro down into central Virginia as well as the Shenandoah Valley. The cooler spots will be over the Allegheny Front and northeastern Maryland where highs remain in the mid/upper 60s.
By this evening and into the night, winds continue to back with a resulting east-northeasterly flow. This onshore flow regime allows for a return of marine stratus to the forecast area. A cool and damp wind will yield a cooler night than previous days.
Forecast lows are mainly in the mid/upper 40s, with some low 50s across the I-64 corridor and in the Allegheny mountain valleys.
Any shower chances are expected to hold off until after sunrise on Friday.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
An expansive upper trough extending across southern Canada into the Great Lakes region will support a pattern change into the upcoming weekend. Warm advection ahead of the attendant cold front will yield periods of showers on Friday. Total rainfall amounts are not terribly impressive, generally running around 0.10 inches, locally up to 0.25 inches in the higher terrain.
This is accompanied by a slight chance for thunderstorms, especially west of I-95. Despite mainly south to southeasterly flow, the mostly cloudy skies should keep temperatures down relative to Thursday. Those east of U.S. 15 will likely stay in the mid/upper 60s (locally a bit cooler in northeastern Maryland), with slightly warmer conditions to the west outside of mountain locales. Shower chances gradually come to an end from west to east overnight. Nighttime lows will range from the 40s over the mountains and along the Mason-Dixon Line, to low/mid 50s elsewhere.
Aside from a few lingering showers early Saturday morning over far southern Maryland, expect a dry day over the region on Saturday. Temperatures stay slightly above normal owing to a downsloping northwesterly wind. However, this round of winds should be much stronger than recent frontal passages. The latest forecast package calls for afternoon gusts of 20 to 30 mph, locally up to 35 to 40 mph along the Allegheny ridgetops. Some residual wind lingers into the overnight hours which will make for a chilly Saturday night. Forecast low temperatures range from the upper 30s to mid 40s, with near freezing conditions along the Allegheny Front.
LONG TERM /SUNDAY THROUGH WEDNESDAY/
A front will be draped along the southeastern states Sunday while high pressure extends eastward from the Plains to its north. Low pressure will be tracking along the front, spreading rain toward southern Virginia by Sunday evening. Model consensus continues to indicate rain will largely remain south of the forecast area, but there are still some 20-30 PoPs across southern zones. Even without the rain, Sunday will be a mostly cloudy and cooler day. Clouds will depart late Sunday night. Some valleys west of the Blue Ridge could drop into the mid 30s should skies clear and winds become light, which would pose a risk for frost.
The surface high will move closer on Monday, although there will be a compact short wave trough (or even closed low) overhead. While some extra clouds are possible, the chance for rain is currently low. Temperatures will be near or slightly below normal.
The high will remain in control to start Tuesday, and southerly return flow will result in a warm up. The next trough and associated cold front will approach late Tuesday into early Wednesday. Moisture may be limited, resulting in the highest shower chances along the Appalachians. Instability will also be limited, so thunderstorms appear unlikely. Shower chances linger into Wednesday to account for slower solutions. Otherwise, expect gusty winds and cooler temperatures behind the front as strong high pressure builds in from the northwest.
AVIATION /08Z THURSDAY THROUGH MONDAY/
A wavy warm front currently extends from the eastern West Virginia panhandle down toward Calvert County in southern Maryland. To the north of this boundary, a thick marine stratus deck has formed which is impacting KBWI and KMTN with IFR ceilings. This will likely stick around through much of the morning until an upstream cold front eventually scours out the low clouds. Winds shift to northwesterly in the wake with some gusts up to 15 knots or so. Heading into the evening and nighttime, winds back over to east-northeasterly which favors another round of low stratus. MVFR to IFR ceilings become likely late tonight nto Friday.
Rain showers return to the forecast on Friday, accompanied by some slight thunder chances for the more western terminals.
Restrictions are expected to persist with MVFR ceilings remaining for portions of the day. A stronger cold front tracks through late Friday which should allow for a return to VFR conditions on Saturday. A gusty northwesterly wind is expected with forecast gusts up to 20 to 25 knots.
VFR conditions and winds AOB 10 kt are most likely for Sunday and Monday. Effects from low pressure will likely remain south of the area, but rain could near CHO Sunday evening.
MARINE
Wind fields across the waterways picked up earlier in response to a southeastward propagating outflow boundary. However, its influence has waned with below advisory winds being observed. A weak cold front pushes across the waters today which could bring near 18 knot gusts at times. Eventually a shift to east- northeasterlies is expected with another uptick in winds, particularly over the northern Chesapeake Bay. Some 20 knots gusts are possible as this occurs later this evening.
Rain showers are in the forecast on Friday, although the main thunder chances should stay west of the tidal Potomac and Chesapeake Bay. However, these details could change so check back for the latest forecasts. A stronger cold front arrives late Friday night into early Saturday. This leads to a strengthening northwesterly wind and likely Small Craft Advisories for Saturday and possibly into the night.
Overall winds will lessen Sunday, but some gusts may approach advisory criteria. Sub-SCA conditions are likely Sunday night and Monday as high pressure builds in from the west.
TIDES/COASTAL FLOODING
Tidal anomalies will hold steady or trend down slightly today with a brief period of northerly winds. Easterly winds develop tonight then become southerly Friday, which will result in rising anomalies. The greatest chance for minor flooding will be along sensitive shoreline (Annapolis, Straits Point, DC SW Waterfront) with the Friday and Friday night high tides, although it may be close in other locations. Water levels will drop southerly in gusty northwest postfrontal flow.
LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...None.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 400 AM EDT Thu Apr 18 2024
SYNOPSIS
A slow moving warm front will exit the local area this morning while a weak cold front tracks through later today. High pressure briefly builds in before a stronger cold front pushes across the region Friday evening into the night. High pressure returns late in the weekend into early next week.
NEAR TERM /THROUGH TONIGHT/
A long-lived outflow boundary which pushed toward the south and east has essentially stabilized the atmosphere over the area.
Some light radar echoes are noted near the Mason-Dixon Line in northeastern Maryland. However, their innocuous appearance suggests any shower activity is quite light.
The other piece to the forecast is a wavy warm front which currently arcs from the eastern West Virginia panhandle out into the central Chesapeake Bay. To the north within the cool sector, low clouds and patchy fog have developed over the past several hours. Visibilities have generally bottomed out between 3 and 5 miles which suggests any threat for dense fog should be minimal.
The thick stratus deck is likely to persist until the upstream cold front eventually scours out the residual moisture over the area.
This relatively weak cold front is presently over central West Virginia into western Pennsylvania. The latest forecast indicates a midday frontal passage with a shift to northwesterly winds in the wake. Gusts up to 15 to perhaps 20 mph are possible during the afternoon hours as the boundary layer becomes better mixed. The net downsloping effect behind this front will yield a warm mid-April day across the Mid-Atlantic.
As 850-mb temperatures rise into the 10 to 12C range, dry adiabatic mixing would yield upper 70s to low 80s. This is indeed the forecast for the D.C. metro down into central Virginia as well as the Shenandoah Valley. The cooler spots will be over the Allegheny Front and northeastern Maryland where highs remain in the mid/upper 60s.
By this evening and into the night, winds continue to back with a resulting east-northeasterly flow. This onshore flow regime allows for a return of marine stratus to the forecast area. A cool and damp wind will yield a cooler night than previous days.
Forecast lows are mainly in the mid/upper 40s, with some low 50s across the I-64 corridor and in the Allegheny mountain valleys.
Any shower chances are expected to hold off until after sunrise on Friday.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
An expansive upper trough extending across southern Canada into the Great Lakes region will support a pattern change into the upcoming weekend. Warm advection ahead of the attendant cold front will yield periods of showers on Friday. Total rainfall amounts are not terribly impressive, generally running around 0.10 inches, locally up to 0.25 inches in the higher terrain.
This is accompanied by a slight chance for thunderstorms, especially west of I-95. Despite mainly south to southeasterly flow, the mostly cloudy skies should keep temperatures down relative to Thursday. Those east of U.S. 15 will likely stay in the mid/upper 60s (locally a bit cooler in northeastern Maryland), with slightly warmer conditions to the west outside of mountain locales. Shower chances gradually come to an end from west to east overnight. Nighttime lows will range from the 40s over the mountains and along the Mason-Dixon Line, to low/mid 50s elsewhere.
Aside from a few lingering showers early Saturday morning over far southern Maryland, expect a dry day over the region on Saturday. Temperatures stay slightly above normal owing to a downsloping northwesterly wind. However, this round of winds should be much stronger than recent frontal passages. The latest forecast package calls for afternoon gusts of 20 to 30 mph, locally up to 35 to 40 mph along the Allegheny ridgetops. Some residual wind lingers into the overnight hours which will make for a chilly Saturday night. Forecast low temperatures range from the upper 30s to mid 40s, with near freezing conditions along the Allegheny Front.
LONG TERM /SUNDAY THROUGH WEDNESDAY/
A front will be draped along the southeastern states Sunday while high pressure extends eastward from the Plains to its north. Low pressure will be tracking along the front, spreading rain toward southern Virginia by Sunday evening. Model consensus continues to indicate rain will largely remain south of the forecast area, but there are still some 20-30 PoPs across southern zones. Even without the rain, Sunday will be a mostly cloudy and cooler day. Clouds will depart late Sunday night. Some valleys west of the Blue Ridge could drop into the mid 30s should skies clear and winds become light, which would pose a risk for frost.
The surface high will move closer on Monday, although there will be a compact short wave trough (or even closed low) overhead. While some extra clouds are possible, the chance for rain is currently low. Temperatures will be near or slightly below normal.
The high will remain in control to start Tuesday, and southerly return flow will result in a warm up. The next trough and associated cold front will approach late Tuesday into early Wednesday. Moisture may be limited, resulting in the highest shower chances along the Appalachians. Instability will also be limited, so thunderstorms appear unlikely. Shower chances linger into Wednesday to account for slower solutions. Otherwise, expect gusty winds and cooler temperatures behind the front as strong high pressure builds in from the northwest.
AVIATION /08Z THURSDAY THROUGH MONDAY/
A wavy warm front currently extends from the eastern West Virginia panhandle down toward Calvert County in southern Maryland. To the north of this boundary, a thick marine stratus deck has formed which is impacting KBWI and KMTN with IFR ceilings. This will likely stick around through much of the morning until an upstream cold front eventually scours out the low clouds. Winds shift to northwesterly in the wake with some gusts up to 15 knots or so. Heading into the evening and nighttime, winds back over to east-northeasterly which favors another round of low stratus. MVFR to IFR ceilings become likely late tonight nto Friday.
Rain showers return to the forecast on Friday, accompanied by some slight thunder chances for the more western terminals.
Restrictions are expected to persist with MVFR ceilings remaining for portions of the day. A stronger cold front tracks through late Friday which should allow for a return to VFR conditions on Saturday. A gusty northwesterly wind is expected with forecast gusts up to 20 to 25 knots.
VFR conditions and winds AOB 10 kt are most likely for Sunday and Monday. Effects from low pressure will likely remain south of the area, but rain could near CHO Sunday evening.
MARINE
Wind fields across the waterways picked up earlier in response to a southeastward propagating outflow boundary. However, its influence has waned with below advisory winds being observed. A weak cold front pushes across the waters today which could bring near 18 knot gusts at times. Eventually a shift to east- northeasterlies is expected with another uptick in winds, particularly over the northern Chesapeake Bay. Some 20 knots gusts are possible as this occurs later this evening.
Rain showers are in the forecast on Friday, although the main thunder chances should stay west of the tidal Potomac and Chesapeake Bay. However, these details could change so check back for the latest forecasts. A stronger cold front arrives late Friday night into early Saturday. This leads to a strengthening northwesterly wind and likely Small Craft Advisories for Saturday and possibly into the night.
Overall winds will lessen Sunday, but some gusts may approach advisory criteria. Sub-SCA conditions are likely Sunday night and Monday as high pressure builds in from the west.
TIDES/COASTAL FLOODING
Tidal anomalies will hold steady or trend down slightly today with a brief period of northerly winds. Easterly winds develop tonight then become southerly Friday, which will result in rising anomalies. The greatest chance for minor flooding will be along sensitive shoreline (Annapolis, Straits Point, DC SW Waterfront) with the Friday and Friday night high tides, although it may be close in other locations. Water levels will drop southerly in gusty northwest postfrontal flow.
LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| NCDV2 | 16 mi | 42 min | NW 1G | 65°F | 64°F | 29.86 | ||
| WASD2 - 8594900 - Washington, DC | 31 mi | 42 min | ENE 1.9G | 61°F | 62°F | 29.88 | ||
| BSLM2 - Chesapeake Bay, MD | 37 mi | 60 min | NW 1.9 | 57°F | 29.89 | 56°F | ||
| SLIM2 - 8577330 - Solomons Island, MD | 44 mi | 42 min | N 5.1G | 63°F | 57°F | 29.87 | ||
| PPTM2 - 8578240 - Piney Point, MD | 45 mi | 42 min | NNW 2.9G | |||||
| 44062 - Gooses Reef, MD | 46 mi | 30 min | N 12G | 54°F | 58°F | 1 ft | ||
| COVM2 - 8577018 - Cove Point LNG Pier, MD | 47 mi | 42 min | WNW 11G | 57°F | 29.89 |
toggle option: (graph/table)
Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KNYG QUANTICO MCAF /TURNER FIELD,VA | 3 sm | 34 min | NNW 04 | 8 sm | Clear | 64°F | 57°F | 77% | 29.90 | |
| KRMN STAFFORD RGNL,VA | 11 sm | 15 min | calm | 10 sm | Clear | 61°F | 52°F | 72% | 29.90 | |
| KDAA DAVISON AAF,VA | 17 sm | 35 min | calm | 10 sm | A Few Clouds | 59°F | 57°F | 94% | 29.87 | |
| KEZF SHANNON,VA | 17 sm | 15 min | calm | 10 sm | Clear | 63°F | 61°F | 94% | 29.89 | |
| KHEF MANASSAS RGNL/HARRY P DAVIS FIELD,VA | 22 sm | 34 min | calm | 10 sm | Clear | 61°F | 57°F | 88% | 29.91 |
Liverpool Point
Click for Map
Thu -- 02:51 AM EDT 1.35 feet High Tide
Thu -- 04:17 AM EDT Moonset
Thu -- 06:28 AM EDT Sunrise
Thu -- 09:07 AM EDT 0.28 feet Low Tide
Thu -- 02:56 PM EDT Moonrise
Thu -- 03:15 PM EDT 1.34 feet High Tide
Thu -- 07:49 PM EDT Sunset
Thu -- 09:42 PM EDT 0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 02:51 AM EDT 1.35 feet High Tide
Thu -- 04:17 AM EDT Moonset
Thu -- 06:28 AM EDT Sunrise
Thu -- 09:07 AM EDT 0.28 feet Low Tide
Thu -- 02:56 PM EDT Moonrise
Thu -- 03:15 PM EDT 1.34 feet High Tide
Thu -- 07:49 PM EDT Sunset
Thu -- 09:42 PM EDT 0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Liverpool Point, Maryland, Tide feet
| 12 am |
| 0.9 |
| 1 am |
| 1.1 |
| 2 am |
| 1.3 |
| 3 am |
| 1.4 |
| 4 am |
| 1.2 |
| 5 am |
| 1 |
| 6 am |
| 0.7 |
| 7 am |
| 0.5 |
| 8 am |
| 0.4 |
| 9 am |
| 0.3 |
| 10 am |
| 0.3 |
| 11 am |
| 0.6 |
| 12 pm |
| 0.8 |
| 1 pm |
| 1.1 |
| 2 pm |
| 1.2 |
| 3 pm |
| 1.3 |
| 4 pm |
| 1.3 |
| 5 pm |
| 1.1 |
| 6 pm |
| 0.9 |
| 7 pm |
| 0.7 |
| 8 pm |
| 0.5 |
| 9 pm |
| 0.3 |
| 10 pm |
| 0.3 |
| 11 pm |
| 0.4 |
Aquia Creek
Click for Map
Thu -- 02:54 AM EDT 1.03 feet High Tide
Thu -- 04:17 AM EDT Moonset
Thu -- 06:28 AM EDT Sunrise
Thu -- 09:04 AM EDT 0.19 feet Low Tide
Thu -- 02:57 PM EDT Moonrise
Thu -- 03:04 PM EDT 1.09 feet High Tide
Thu -- 07:49 PM EDT Sunset
Thu -- 09:28 PM EDT 0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 02:54 AM EDT 1.03 feet High Tide
Thu -- 04:17 AM EDT Moonset
Thu -- 06:28 AM EDT Sunrise
Thu -- 09:04 AM EDT 0.19 feet Low Tide
Thu -- 02:57 PM EDT Moonrise
Thu -- 03:04 PM EDT 1.09 feet High Tide
Thu -- 07:49 PM EDT Sunset
Thu -- 09:28 PM EDT 0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Aquia Creek, Virginia, Tide feet
| 12 am |
| 0.6 |
| 1 am |
| 0.8 |
| 2 am |
| 1 |
| 3 am |
| 1 |
| 4 am |
| 1 |
| 5 am |
| 0.9 |
| 6 am |
| 0.8 |
| 7 am |
| 0.6 |
| 8 am |
| 0.3 |
| 9 am |
| 0.2 |
| 10 am |
| 0.3 |
| 11 am |
| 0.5 |
| 12 pm |
| 0.7 |
| 1 pm |
| 0.8 |
| 2 pm |
| 1 |
| 3 pm |
| 1.1 |
| 4 pm |
| 1 |
| 5 pm |
| 0.9 |
| 6 pm |
| 0.8 |
| 7 pm |
| 0.6 |
| 8 pm |
| 0.3 |
| 9 pm |
| 0.1 |
| 10 pm |
| 0.1 |
| 11 pm |
| 0.3 |
Sterling, VA,
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