Marine Weather and Tide Forecast for Brookmont, MD
May 12, 2024 10:32 AM EDT (14:32 UTC) Change Location
 | Sunrise 5:56 AM Sunset 8:13 PM Moonrise 8:32 AM Moonset 12:00 AM |
ANZ535 Tidal Potomac From Key Bridge To Indian Head- 736 Am Edt Sun May 12 2024
.small craft advisory in effect from noon today to 7 pm edt this evening - .
Today - NW winds 5 to 10 kt. Gusts up to 20 kt late this morning and afternoon. Waves 1 ft. Scattered showers this morning, then a slight chance of showers and tstms this afternoon. Vsby 1 nm or less this morning.
Tonight - N winds 5 to 10 kt - .becoming E after midnight. Waves 1 ft.
Mon - S winds 5 to 10 kt. Waves 1 ft.
Mon night - S winds 5 to 10 kt. Waves 1 ft.
Tue - S winds 5 to 10 kt. Waves 1 ft. Showers likely.
Tue night - SE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers with a chance of tstms.
Wed - NE winds 5 to 10 kt - .becoming N after midnight. Waves 1 ft. A chance of tstms. Showers likely .
Thu - N winds 5 to 10 kt - .becoming E after midnight. Waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
winds and waves higher and visibilities lower in and near tstms.
ANZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm 1024 Am Edt Sun May 12 2024
Synopsis - Frontal boundary south of the area will lift back northward as a warm front into tomorrow. Broad high pressure will exist across the area today, before moving quickly out to sea on Monday as front lifts north, with a fresh southeast to south breeze developing into early this week. Shower and Thunderstorm chances steadily increase through early to mid week.
Gulf stream hazards - None.
the approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Friday, may 10th.
41 nautical miles east of ponce inlet. 29 nautical miles east of port canaveral. 24 nautical miles east of sebastian inlet. 15 nautical miles east of fort pierce inlet. 9 nautical miles east of saint lucie inlet.
the approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Friday, may 10th.
41 nautical miles east of ponce inlet. 29 nautical miles east of port canaveral. 24 nautical miles east of sebastian inlet. 15 nautical miles east of fort pierce inlet. 9 nautical miles east of saint lucie inlet.
Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 121338 AFDLWX
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 938 AM EDT Sun May 12 2024
SYNOPSIS
A potent upper low will pivot across the northeastern portion of the forecast area today, bringing cool and unsettled conditions.
High pressure returns tonight into Monday. A slow moving low pressure system will bring more unsettled weather Tuesday into the middle of the week.
NEAR TERM /THROUGH TONIGHT/
A potent upper low spinning over the northeast CONUS will pivot across northeast portions of the forecast area today. At the surface, a cold front will finally push through the region, which will turn winds out of the southwest. The combination of these two features will keep it seasonably cool and unsettled today with highs only reaching the 60s.
The early morning convection that moved across the DC Metro into Southern MD is finally dissipating and moving east of the area toward the Eastern Shore. Conditions mostly dry for the next couple of hours before additional showers move into northern to northeast MD from PA. Most of the precip today will focus in the Baltimore metro to northeast MD, though at least a few showers could develop as far west/south as US-50.
The upper low may linger across northeast MD, resulting in some lingering cloud cover as well. Elsewhere, skies should clear out pretty efficiently as high pressure builds in from the west.
Low temperatures will again reach the 40s for most (50s near the water).
SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/
For Monday, high pressure will move overhead and eventually offshore, so expect dry conditions and high temperatures in mid to upper 70s.
For Monday night, sky cover will be on the increase ahead of an approaching low pressure system. Low temperatures will only drop into the mid 50s to low 60s.
Showers and thunderstorms are expected on Tuesday as an area of low pressure approaches from our southwest. Given the warm and moist air mass in place, could even see some locally heavy rainfall during the afternoon. Severe threat at this time seems rather low.
LONG TERM /WEDNESDAY THROUGH SATURDAY/
On Wednesday, surface low pressure will likely be nearby or moving off the coast. An upper trough will also be overhead. Enough moisture will remain in place that showers will likely continue. A few thunderstorms are also possible, but instability will be limited. High temperatures will likely remain slightly below normal.
Since a closed low will potentially be involved, there is some uncertainty with how quickly it will pull away. There does still appear to be a brief period of ridging sometime in the Thursday to Friday period. However, northeast flow between the low offshore and high pressure well to the north could keep some extra low level moisture and clouds around. If Thursday does end up mostly sunny, there should be a corresponding slight boost to temperatures.
The next trough will quickly approach from the mid Mississippi Valley Friday into Saturday. Shower chances increase as a result.
Instability appears to remain limited with this system as well, so thunderstorm chances are more in question. Southerly flow could result in another slight increase to temperatures, but this may be offset by clouds/precip...so overall remaining seasonable.
AVIATION /14Z SUNDAY THROUGH THURSDAY/
Winds have shifted to northwest behind a cold front that passed through earlier this morning. Afternoon to evening showers and possibly a thunderstorm or two are expected for BWI and MTN, with possibly VCSH at MRB, IAD, and DCA. Winds gusts to around 20 knots from late morning through the afternoon. Winds turn northeast tonight, which could bring in some lower CIGs to BWI and MTN.
Otherwise, VFR conditions expected through Monday as high pressure returns. Winds will also taper off a good bit on Monday as well and gradually turn out of the south.
By Tuesday, winds remain southerly and begin to pick up ahead of an approaching low pressure. Rain chances will be on the increase as well with numerous showers and some thunderstorms expected. This could lead to flight restrictions at all terminals potentially.
Sub-VFR ceilings may attempt to lift Wednesday as low pressure pulls offshore. However, showers will likely continue and a few thunderstorms can't be ruled out. High pressure may build in Thursday, but some low level moisture could linger if the low pressure system is slow to move offshore. Northerly winds may gust up to 20 kt at times both Wednesday and Thursday.
MARINE
Winds have turned northwest late this morning behind a cold front that pushed through the waters earlier. Winds could gust to SCA levels for a few hours during the afternoon. Winds diminish Sunday night into Monday as high pressure builds into the region.
SCA conditions will likely return on Monday afternoon/evening, continuing into Tuesday, due to southerly channeling of winds up the Chesapeake Bay. Shower and thunderstorm chances also return Tuesday as an area of low pressure approaches from the southwest.
Low pressure will gradually move offshore Wednesday into Thursday.
Northerly winds may necessitate Small Craft Advisories for portions of the waters during this time. Showers and a few thunderstorms will continue Wednesday before drier conditions arrive Thursday.
TIDES/COASTAL FLOODING
Continued southerly flow, as well as coming off of a King Tide, have continued to result in elevated tidal anomalies. A brief directional change in the winds out of the NW could briefly drop anomalies this afternoon, though some coastal flooding is still possible during the evening high tide. Southerly flow will return quickly late tonight and continue for the foreseeable future. Additional period of coastal flooding seem likely in the coming days.
LWX WATCHES/WARNINGS/ADVISORIES
DC...Coastal Flood Advisory until 3 PM EDT this afternoon for DCZ001.
MD...Coastal Flood Advisory until 3 PM EDT this afternoon for MDZ011.
Coastal Flood Warning until 3 PM EDT this afternoon for MDZ014.
Coastal Flood Advisory until 11 AM EDT this morning for MDZ016- 018.
Coastal Flood Advisory until 5 PM EDT this afternoon for MDZ508.
VA...Coastal Flood Advisory until 3 PM EDT this afternoon for VAZ054.
Coastal Flood Advisory until 11 AM EDT this morning for VAZ057.
WV...None.
MARINE...Small Craft Advisory until 4 PM EDT this afternoon for ANZ531- 532-538>540.
Small Craft Advisory until 7 PM EDT this evening for ANZ533>537-541>543.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 938 AM EDT Sun May 12 2024
SYNOPSIS
A potent upper low will pivot across the northeastern portion of the forecast area today, bringing cool and unsettled conditions.
High pressure returns tonight into Monday. A slow moving low pressure system will bring more unsettled weather Tuesday into the middle of the week.
NEAR TERM /THROUGH TONIGHT/
A potent upper low spinning over the northeast CONUS will pivot across northeast portions of the forecast area today. At the surface, a cold front will finally push through the region, which will turn winds out of the southwest. The combination of these two features will keep it seasonably cool and unsettled today with highs only reaching the 60s.
The early morning convection that moved across the DC Metro into Southern MD is finally dissipating and moving east of the area toward the Eastern Shore. Conditions mostly dry for the next couple of hours before additional showers move into northern to northeast MD from PA. Most of the precip today will focus in the Baltimore metro to northeast MD, though at least a few showers could develop as far west/south as US-50.
The upper low may linger across northeast MD, resulting in some lingering cloud cover as well. Elsewhere, skies should clear out pretty efficiently as high pressure builds in from the west.
Low temperatures will again reach the 40s for most (50s near the water).
SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/
For Monday, high pressure will move overhead and eventually offshore, so expect dry conditions and high temperatures in mid to upper 70s.
For Monday night, sky cover will be on the increase ahead of an approaching low pressure system. Low temperatures will only drop into the mid 50s to low 60s.
Showers and thunderstorms are expected on Tuesday as an area of low pressure approaches from our southwest. Given the warm and moist air mass in place, could even see some locally heavy rainfall during the afternoon. Severe threat at this time seems rather low.
LONG TERM /WEDNESDAY THROUGH SATURDAY/
On Wednesday, surface low pressure will likely be nearby or moving off the coast. An upper trough will also be overhead. Enough moisture will remain in place that showers will likely continue. A few thunderstorms are also possible, but instability will be limited. High temperatures will likely remain slightly below normal.
Since a closed low will potentially be involved, there is some uncertainty with how quickly it will pull away. There does still appear to be a brief period of ridging sometime in the Thursday to Friday period. However, northeast flow between the low offshore and high pressure well to the north could keep some extra low level moisture and clouds around. If Thursday does end up mostly sunny, there should be a corresponding slight boost to temperatures.
The next trough will quickly approach from the mid Mississippi Valley Friday into Saturday. Shower chances increase as a result.
Instability appears to remain limited with this system as well, so thunderstorm chances are more in question. Southerly flow could result in another slight increase to temperatures, but this may be offset by clouds/precip...so overall remaining seasonable.
AVIATION /14Z SUNDAY THROUGH THURSDAY/
Winds have shifted to northwest behind a cold front that passed through earlier this morning. Afternoon to evening showers and possibly a thunderstorm or two are expected for BWI and MTN, with possibly VCSH at MRB, IAD, and DCA. Winds gusts to around 20 knots from late morning through the afternoon. Winds turn northeast tonight, which could bring in some lower CIGs to BWI and MTN.
Otherwise, VFR conditions expected through Monday as high pressure returns. Winds will also taper off a good bit on Monday as well and gradually turn out of the south.
By Tuesday, winds remain southerly and begin to pick up ahead of an approaching low pressure. Rain chances will be on the increase as well with numerous showers and some thunderstorms expected. This could lead to flight restrictions at all terminals potentially.
Sub-VFR ceilings may attempt to lift Wednesday as low pressure pulls offshore. However, showers will likely continue and a few thunderstorms can't be ruled out. High pressure may build in Thursday, but some low level moisture could linger if the low pressure system is slow to move offshore. Northerly winds may gust up to 20 kt at times both Wednesday and Thursday.
MARINE
Winds have turned northwest late this morning behind a cold front that pushed through the waters earlier. Winds could gust to SCA levels for a few hours during the afternoon. Winds diminish Sunday night into Monday as high pressure builds into the region.
SCA conditions will likely return on Monday afternoon/evening, continuing into Tuesday, due to southerly channeling of winds up the Chesapeake Bay. Shower and thunderstorm chances also return Tuesday as an area of low pressure approaches from the southwest.
Low pressure will gradually move offshore Wednesday into Thursday.
Northerly winds may necessitate Small Craft Advisories for portions of the waters during this time. Showers and a few thunderstorms will continue Wednesday before drier conditions arrive Thursday.
TIDES/COASTAL FLOODING
Continued southerly flow, as well as coming off of a King Tide, have continued to result in elevated tidal anomalies. A brief directional change in the winds out of the NW could briefly drop anomalies this afternoon, though some coastal flooding is still possible during the evening high tide. Southerly flow will return quickly late tonight and continue for the foreseeable future. Additional period of coastal flooding seem likely in the coming days.
LWX WATCHES/WARNINGS/ADVISORIES
DC...Coastal Flood Advisory until 3 PM EDT this afternoon for DCZ001.
MD...Coastal Flood Advisory until 3 PM EDT this afternoon for MDZ011.
Coastal Flood Warning until 3 PM EDT this afternoon for MDZ014.
Coastal Flood Advisory until 11 AM EDT this morning for MDZ016- 018.
Coastal Flood Advisory until 5 PM EDT this afternoon for MDZ508.
VA...Coastal Flood Advisory until 3 PM EDT this afternoon for VAZ054.
Coastal Flood Advisory until 11 AM EDT this morning for VAZ057.
WV...None.
MARINE...Small Craft Advisory until 4 PM EDT this afternoon for ANZ531- 532-538>540.
Small Craft Advisory until 7 PM EDT this evening for ANZ533>537-541>543.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| WASD2 - 8594900 - Washington, DC | 5 mi | 45 min | NNW 4.1G | 61°F | 69°F | 29.85 | ||
| BSLM2 - Chesapeake Bay, MD | 23 mi | 63 min | WSW 2.9 | 57°F | 29.83 | 52°F | ||
| APAM2 - 8575512 - Annapolis, MD | 33 mi | 45 min | W 4.1G | 59°F | 68°F | 29.83 | ||
| 44063 - Annapolis | 35 mi | 39 min | W 3.9G | 57°F | 63°F | 1 ft | ||
| TPLM2 - Thomas Point, MD | 35 mi | 33 min | S 4.1G | 56°F | 29.88 | |||
| CBCM2 | 36 mi | 45 min | WNW 4.1G | 56°F | 65°F | 29.83 | 50°F | |
| BLTM2 - 8574680 - Baltimore, MD | 37 mi | 45 min | WNW 1G | 58°F | 66°F | |||
| FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 37 mi | 45 min | WNW 6G | 55°F | ||||
| CPVM2 | 38 mi | 45 min | 57°F | 51°F | ||||
| 44043 - Patapsco, MD | 41 mi | 39 min | NNW 1.9G | 57°F | 63°F | |||
| NCDV2 | 42 mi | 45 min | W 2.9G | 60°F | 66°F | 29.84 | ||
| 44062 - Gooses Reef, MD | 44 mi | 39 min | W 12G | 55°F | 64°F | 1 ft |
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KDCA RONALD REAGAN WASHINGTON NATIONAL,VA | 6 sm | 10 min | W 13G19 | 10 sm | Mostly Cloudy | 63°F | 48°F | 59% | 29.85 | |
| KCGS COLLEGE PARK,MD | 10 sm | 22 min | W 10 | 10 sm | Partly Cloudy | 61°F | 48°F | 63% | 29.86 | |
| KADW JOINT BASE ANDREWS,MD | 14 sm | 37 min | WNW 06 | 10 sm | Clear | 61°F | 52°F | 72% | 29.83 | |
| KDAA DAVISON AAF,VA | 15 sm | 37 min | W 06 | 10 sm | Clear | 61°F | 52°F | 72% | 29.84 | |
| KGAI MONTGOMERY COUNTY AIRPARK,MD | 18 sm | 20 min | W 11G20 | 10 sm | Mostly Cloudy | 61°F | 48°F | 63% | 29.86 | |
| KIAD WASHINGTON DULLES INTL,VA | 19 sm | 40 min | W 11G19 | 10 sm | Mostly Cloudy | 61°F | 46°F | 59% | 29.85 | |
| KFME TIPTON,MD | 22 sm | 23 min | NW 09 | 10 sm | Mostly Cloudy | 59°F | 50°F | 72% | 29.87 |
Tide / Current for Chain Bridge, one mile below, Washington, D.C.
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Tide / Current data from XTide NOT FOR NAVIGATION
Chain Bridge, one mile below, Washington, D.C., Tide feet
Reagan National Airport
Click for Map
Sun -- 12:07 AM EDT 3.16 feet High Tide
Sun -- 12:29 AM EDT Moonset
Sun -- 05:57 AM EDT Sunrise
Sun -- 06:28 AM EDT 0.47 feet Low Tide
Sun -- 09:32 AM EDT Moonrise
Sun -- 12:13 PM EDT 3.54 feet High Tide
Sun -- 07:24 PM EDT 0.35 feet Low Tide
Sun -- 08:11 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:07 AM EDT 3.16 feet High Tide
Sun -- 12:29 AM EDT Moonset
Sun -- 05:57 AM EDT Sunrise
Sun -- 06:28 AM EDT 0.47 feet Low Tide
Sun -- 09:32 AM EDT Moonrise
Sun -- 12:13 PM EDT 3.54 feet High Tide
Sun -- 07:24 PM EDT 0.35 feet Low Tide
Sun -- 08:11 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Reagan National Airport, Washington, D.C., Tide feet
| 12 am |
| 3.2 |
| 1 am |
| 3 |
| 2 am |
| 2.5 |
| 3 am |
| 1.8 |
| 4 am |
| 1.2 |
| 5 am |
| 0.8 |
| 6 am |
| 0.5 |
| 7 am |
| 0.5 |
| 8 am |
| 1 |
| 9 am |
| 1.8 |
| 10 am |
| 2.7 |
| 11 am |
| 3.3 |
| 12 pm |
| 3.5 |
| 1 pm |
| 3.4 |
| 2 pm |
| 2.9 |
| 3 pm |
| 2.3 |
| 4 pm |
| 1.7 |
| 5 pm |
| 1.2 |
| 6 pm |
| 0.7 |
| 7 pm |
| 0.4 |
| 8 pm |
| 0.4 |
| 9 pm |
| 1 |
| 10 pm |
| 1.8 |
| 11 pm |
| 2.5 |
Sterling, VA,
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