Marine Weather and Tide Forecast for Brookmont, MD
March 28, 2024 2:07 PM EDT (18:07 UTC) Change Location
Sunrise 6:56 AM Sunset 7:29 PM Moonrise 10:06 PM Moonset 7:22 AM |
ANZ535 Tidal Potomac From Key Bridge To Indian Head- 134 Pm Edt Thu Mar 28 2024
.small craft advisory in effect through late tonight - .
.gale warning in effect from Friday morning through Friday afternoon - .
This afternoon - NW winds 10 kt with gusts to 20 kt. Waves 1 ft. A slight chance of showers.
Tonight - NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Fri - NW winds 15 to 20 kt with gusts to 35 kt. Waves 1 to 2 ft.
Fri night - W winds 15 to 20 kt with gusts to 30 kt - . Becoming nw around 5 kt after midnight. Waves 1 to 2 ft.
Sat - SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.
Sat night - W winds 5 to 10 kt. Waves 1 ft.
Sun - NW winds 5 to 10 kt - .becoming ne after midnight. Waves 1 ft. A chance of rain after midnight.
Mon - E winds 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night.
ANZ500 134 Pm Edt Thu Mar 28 2024
Synopsis for the tidal potomac and md portion of the chesapeake bay -
a cold front will move through this morning, while low pressure tracks northeastward off the coast through tonight. High pressure will build across the southeastern states Friday. A front will stall near the area over the weekend into early next week, with multiple waves of low pressure tracking along it. Gale conditions are possible Friday. Small craft advisories may be needed Sunday.
a cold front will move through this morning, while low pressure tracks northeastward off the coast through tonight. High pressure will build across the southeastern states Friday. A front will stall near the area over the weekend into early next week, with multiple waves of low pressure tracking along it. Gale conditions are possible Friday. Small craft advisories may be needed Sunday.
Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 281431 AFDLWX
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1031 AM EDT Thu Mar 28 2024
SYNOPSIS
As a cold front pushes east today, low pressure will move northeastward off the coast. High pressure will build to our south on Friday. Multiple upper level disturbances will pass overhead this weekend into early next week.
NEAR TERM /THROUGH TONIGHT/
The cold front from this morning has largely pushed through the area this morning, with continued showers east of where it hasn't cleared yet, mainly across southern MD at this time. Some light showers/drizzle are possible as far east as the I-95 corridor through the morning hours, but should quickly push east after noon.
Meanwhile, and area of low pressure is developing and moving northward along the NC/VA coastline at this time. The low won't move north of our latitude until this evening, so at least occasional light rain may linger, mainly along the Chesapeake Bay, through the afternoon. The forecast timing may be on the pessimistic side, especially if dry air can chip away at the back side of the rain. Even where rain does end, clouds will be slow to clear with the upper trough overhead. The best opportunity to see sun this afternoon will be west of the Blue Ridge. Given the recent radar trends, likely won't see much more than a half inch of rain across southern MD for the rest of the event. Elsewhere, we likely won't see more than a few hundredths of an inch of QPF.
Northwesterly winds will increase behind the front as well with 20-25 mph gusts likely (higher on the ridges). Temperatures will only rise a little into the lower and mid 50s across most of the area, although some upper 50s to near 60 are possible where sun breaks out. With this, RH values are expected to quickly drop, especially west of the Blue Ridge. Forecast soundings would suggest that we could drop as low as 20 percent in some spots. This could lead to elevated fire danger today, and more can be found in the Fire Danger section below.
Remaining clouds should clear out this evening but another shortwave will dive through the larger trough late tonight, bringing a return of some clouds and a brief period of upslope snow showers. Snow amounts should generally be less than one inch. Overnight lows will be in the 30s for most of the area.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
The low will track toward the Canadian Maritimes on Friday as high pressure simultaneously builds to our south. This will lead to a strong pressure gradient and gusty northwesterly winds across the area. Gusts will generally range from 30-45 mph, highest in the mountains. While there is some potential for Wind Advisories in the mountains, the strongest winds are near or above the inversion height and there will be a lack of strong pressure rises or cold advection. Any lingering clouds will clear through the day, and high temperatures will range from the upper 40s in the mountains to the lower to middle 60s across Central Virginia.
Friday night should remain dry although with some increase in clouds. A thermal gradient will begin to develop across the area as warm advection begins ahead of a low pressure system in the Great Lakes. This will result in lows in the mid 30s across northeast Maryland to the lower to mid 40s across the central Shenandoah Valley and central Virginia. This warm front will remain draped across the area through Saturday as the low tracks toward the Mid Atlantic. The track of this low and the warm frontal position will have influence on high temperatures (50s north/60s to near 70 south) as well as where the most rain falls. The highest rain chances currently stretch across the eastern West Virginia panhandle and northern Maryland. Clouds may linger Saturday night along with some rain showers along the Alleghenies. Lows will be in the 40s.
LONG TERM /SUNDAY THROUGH WEDNESDAY/
A warm front lingering around the Ohio Valley and Mid-Atlantic through the weekend will bring clouds and some shower activity.
Currently the greatest chance for precipitation on Sunday is along the Alleghenies, expanding eastward from there with 20-30 PoPs but generally remaining west of I-95 during the day.
Low pressure approaches from the west Monday into Tuesday, bringing greater chances of rain for the start of the week. Guidance has trended colder after the system exits Wed/Thurs, bringing possible upslope snow along the Alleghenies to finish off the extended.
Temperatures will be well above normal Sunday with highs in the 60s to 70s outside of the mountains, and closer to normal for the start of the week (50s to 60s) as the next low pressure system moves through. Behind the system will be near to slightly below normal.
AVIATION /14Z THURSDAY THROUGH MONDAY/
There are a wide range of fluctuating ceilings across the area this morning ranging from LIFR to VFR. However, sub-VFR ceilings will likely remain through at least 12Z, then slowly clear from west to east through early afternoon as drier air moves in behind a cold front. Light to occasionally moderate rain will continue at the metro terminals this morning before ending this afternoon. Northwesterly winds may gust 20-25 kt this afternoon, with at least some sporadic gusts lingering through the night.
VFR conditions expected Friday, but northwest winds will gust 25-35 kt through the day. Sub-VFR conditions along with light rain are possible Saturday north of a warm front which will waver near MRB and the metro areas.
Restrictions are possible Sunday into early next week with shower activity from a weak front lingering in the region followed by a low pressure system. Winds could be gusty on Sunday, up to around 20-25 kt out of the northwest. Monday will be less gusty with winds out of the east/northeast.
MARINE
A cold front will cross over the waters this morning, leading to a wind shift to north-northwesterly winds. Small Craft Advisories are in effect for all waters from late this morning into tonight. Winds may approach gale force late tonight near southern Maryland as low pressure passes off the coast, but confidence is low. Likewise, winds will increase across all waters Friday with gusts to at least 30 kt likely. However, will leave the Gale Watch in effect for now since there is still some uncertainty for widespread gale condtions.
At this time, sub-SCA conditions are most likely Friday night into Saturday night.
Winds over portions of the waters may approach SCA criteria during the day Sunday and Monday as a weak front and low pressure system move through the area.
FIRE WEATHER
For today, as a cold front pushes through the region, gusty northwest winds are expected in its wake, especially this afternoon into the evening. Forecast soundings are indicative of a sharp decrease in RH in association with this, especially those in the lee of southwest to northeast oriented ridges.
Generally, RH values will drop as low as 20 to 25 percent in spots. This, paired with sustained winds of 10 to 15 mph and frequently gusts up to 25 or 30 mph, has lead to and SPS for fire danger today west of the Blue Ridge in WV and VA.
For Friday, there is a bit more uncertainty. While winds do increase and there is the potential for very low RHs, the exact location at this time is not certain. It is entirely possible that the worst conditions could overlap with areas that have seen substantial rain in recent days (east of the Blue Ridge and especially along the I-95 corridor). Further evaluation is needed, as well as coordination with fuel moisture experts to determine the threat tomorrow. However winds are expected to be very strong tomorrow, especially west of the Blue Ridge. The main question there will be how low RH values get due to some lingering cloudcover from overnight. A decision on that will be made at a later time.
TIDES/COASTAL FLOODING
Tides will remain elevated this morning, with Coastal Flood Advisories in effect for the more sensitive locations. Winds to turn north- northwesterly behind a cold front today. This should lead to a reduction in anomalies and gradually lowering water levels. Thereafter waters levels are expected to remain below minor flood stage.
LWX WATCHES/WARNINGS/ADVISORIES
DC...Coastal Flood Advisory until 1 PM EDT this afternoon for DCZ001.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory until 11 AM EDT Friday for ANZ530>533-535- 536-538>542.
Gale Watch from Friday morning through Friday afternoon for ANZ530>533-535-536-538>542.
Small Craft Advisory until 4 AM EDT Friday for ANZ534-537-543.
Gale Watch from late tonight through Friday afternoon for ANZ534-537-543.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1031 AM EDT Thu Mar 28 2024
SYNOPSIS
As a cold front pushes east today, low pressure will move northeastward off the coast. High pressure will build to our south on Friday. Multiple upper level disturbances will pass overhead this weekend into early next week.
NEAR TERM /THROUGH TONIGHT/
The cold front from this morning has largely pushed through the area this morning, with continued showers east of where it hasn't cleared yet, mainly across southern MD at this time. Some light showers/drizzle are possible as far east as the I-95 corridor through the morning hours, but should quickly push east after noon.
Meanwhile, and area of low pressure is developing and moving northward along the NC/VA coastline at this time. The low won't move north of our latitude until this evening, so at least occasional light rain may linger, mainly along the Chesapeake Bay, through the afternoon. The forecast timing may be on the pessimistic side, especially if dry air can chip away at the back side of the rain. Even where rain does end, clouds will be slow to clear with the upper trough overhead. The best opportunity to see sun this afternoon will be west of the Blue Ridge. Given the recent radar trends, likely won't see much more than a half inch of rain across southern MD for the rest of the event. Elsewhere, we likely won't see more than a few hundredths of an inch of QPF.
Northwesterly winds will increase behind the front as well with 20-25 mph gusts likely (higher on the ridges). Temperatures will only rise a little into the lower and mid 50s across most of the area, although some upper 50s to near 60 are possible where sun breaks out. With this, RH values are expected to quickly drop, especially west of the Blue Ridge. Forecast soundings would suggest that we could drop as low as 20 percent in some spots. This could lead to elevated fire danger today, and more can be found in the Fire Danger section below.
Remaining clouds should clear out this evening but another shortwave will dive through the larger trough late tonight, bringing a return of some clouds and a brief period of upslope snow showers. Snow amounts should generally be less than one inch. Overnight lows will be in the 30s for most of the area.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
The low will track toward the Canadian Maritimes on Friday as high pressure simultaneously builds to our south. This will lead to a strong pressure gradient and gusty northwesterly winds across the area. Gusts will generally range from 30-45 mph, highest in the mountains. While there is some potential for Wind Advisories in the mountains, the strongest winds are near or above the inversion height and there will be a lack of strong pressure rises or cold advection. Any lingering clouds will clear through the day, and high temperatures will range from the upper 40s in the mountains to the lower to middle 60s across Central Virginia.
Friday night should remain dry although with some increase in clouds. A thermal gradient will begin to develop across the area as warm advection begins ahead of a low pressure system in the Great Lakes. This will result in lows in the mid 30s across northeast Maryland to the lower to mid 40s across the central Shenandoah Valley and central Virginia. This warm front will remain draped across the area through Saturday as the low tracks toward the Mid Atlantic. The track of this low and the warm frontal position will have influence on high temperatures (50s north/60s to near 70 south) as well as where the most rain falls. The highest rain chances currently stretch across the eastern West Virginia panhandle and northern Maryland. Clouds may linger Saturday night along with some rain showers along the Alleghenies. Lows will be in the 40s.
LONG TERM /SUNDAY THROUGH WEDNESDAY/
A warm front lingering around the Ohio Valley and Mid-Atlantic through the weekend will bring clouds and some shower activity.
Currently the greatest chance for precipitation on Sunday is along the Alleghenies, expanding eastward from there with 20-30 PoPs but generally remaining west of I-95 during the day.
Low pressure approaches from the west Monday into Tuesday, bringing greater chances of rain for the start of the week. Guidance has trended colder after the system exits Wed/Thurs, bringing possible upslope snow along the Alleghenies to finish off the extended.
Temperatures will be well above normal Sunday with highs in the 60s to 70s outside of the mountains, and closer to normal for the start of the week (50s to 60s) as the next low pressure system moves through. Behind the system will be near to slightly below normal.
AVIATION /14Z THURSDAY THROUGH MONDAY/
There are a wide range of fluctuating ceilings across the area this morning ranging from LIFR to VFR. However, sub-VFR ceilings will likely remain through at least 12Z, then slowly clear from west to east through early afternoon as drier air moves in behind a cold front. Light to occasionally moderate rain will continue at the metro terminals this morning before ending this afternoon. Northwesterly winds may gust 20-25 kt this afternoon, with at least some sporadic gusts lingering through the night.
VFR conditions expected Friday, but northwest winds will gust 25-35 kt through the day. Sub-VFR conditions along with light rain are possible Saturday north of a warm front which will waver near MRB and the metro areas.
Restrictions are possible Sunday into early next week with shower activity from a weak front lingering in the region followed by a low pressure system. Winds could be gusty on Sunday, up to around 20-25 kt out of the northwest. Monday will be less gusty with winds out of the east/northeast.
MARINE
A cold front will cross over the waters this morning, leading to a wind shift to north-northwesterly winds. Small Craft Advisories are in effect for all waters from late this morning into tonight. Winds may approach gale force late tonight near southern Maryland as low pressure passes off the coast, but confidence is low. Likewise, winds will increase across all waters Friday with gusts to at least 30 kt likely. However, will leave the Gale Watch in effect for now since there is still some uncertainty for widespread gale condtions.
At this time, sub-SCA conditions are most likely Friday night into Saturday night.
Winds over portions of the waters may approach SCA criteria during the day Sunday and Monday as a weak front and low pressure system move through the area.
FIRE WEATHER
For today, as a cold front pushes through the region, gusty northwest winds are expected in its wake, especially this afternoon into the evening. Forecast soundings are indicative of a sharp decrease in RH in association with this, especially those in the lee of southwest to northeast oriented ridges.
Generally, RH values will drop as low as 20 to 25 percent in spots. This, paired with sustained winds of 10 to 15 mph and frequently gusts up to 25 or 30 mph, has lead to and SPS for fire danger today west of the Blue Ridge in WV and VA.
For Friday, there is a bit more uncertainty. While winds do increase and there is the potential for very low RHs, the exact location at this time is not certain. It is entirely possible that the worst conditions could overlap with areas that have seen substantial rain in recent days (east of the Blue Ridge and especially along the I-95 corridor). Further evaluation is needed, as well as coordination with fuel moisture experts to determine the threat tomorrow. However winds are expected to be very strong tomorrow, especially west of the Blue Ridge. The main question there will be how low RH values get due to some lingering cloudcover from overnight. A decision on that will be made at a later time.
TIDES/COASTAL FLOODING
Tides will remain elevated this morning, with Coastal Flood Advisories in effect for the more sensitive locations. Winds to turn north- northwesterly behind a cold front today. This should lead to a reduction in anomalies and gradually lowering water levels. Thereafter waters levels are expected to remain below minor flood stage.
LWX WATCHES/WARNINGS/ADVISORIES
DC...Coastal Flood Advisory until 1 PM EDT this afternoon for DCZ001.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory until 11 AM EDT Friday for ANZ530>533-535- 536-538>542.
Gale Watch from Friday morning through Friday afternoon for ANZ530>533-535-536-538>542.
Small Craft Advisory until 4 AM EDT Friday for ANZ534-537-543.
Gale Watch from late tonight through Friday afternoon for ANZ534-537-543.
Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
WASD2 - 8594900 - Washington, DC | 5 mi | 49 min | NNW 8G | 51°F | 51°F | 29.98 | ||
BSLM2 - Chesapeake Bay, MD | 23 mi | 37 min | NNW 7 | 51°F | 29.95 | 43°F | ||
APAM2 - 8575512 - Annapolis, MD | 33 mi | 49 min | WNW 14G | 52°F | 54°F | 29.96 | ||
44063 - Annapolis | 35 mi | 37 min | N 14G | 49°F | 48°F | |||
TPLM2 - Thomas Point, MD | 35 mi | 67 min | NW 19G | 50°F | 29.96 | |||
BLTM2 - 8574680 - Baltimore, MD | 37 mi | 49 min | NW 5.1G | 52°F | 49°F | |||
FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 37 mi | 49 min | NW 16G | 51°F | ||||
CPVM2 | 38 mi | 49 min | 51°F | 46°F | ||||
44043 - Patapsco, MD | 41 mi | 37 min | NNW 16G | 49°F | 48°F | 1 ft | ||
NCDV2 | 42 mi | 49 min | N 8G | 51°F | 50°F | 29.95 | ||
44062 - Gooses Reef, MD | 44 mi | 37 min | N 14G | 45°F | 49°F | 1 ft |
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 |
KDCA RONALD REAGAN WASHINGTON NATIONAL,VA | 6 sm | 15 min | NW 13 | 10 sm | Overcast | 52°F | 39°F | 62% | 29.99 | |
KCGS COLLEGE PARK,MD | 10 sm | 12 min | NW 07 | 10 sm | Overcast | 50°F | 37°F | 62% | 30.00 | |
KADW JOINT BASE ANDREWS,MD | 14 sm | 12 min | NNW 11 | 10 sm | A Few Clouds | 50°F | 39°F | 66% | 29.97 | |
KDAA DAVISON AAF,VA | 15 sm | 12 min | NW 09 | 10 sm | A Few Clouds | 52°F | 37°F | 58% | 29.99 | |
KGAI MONTGOMERY COUNTY AIRPARK,MD | 18 sm | 11 min | NW 07 | 10 sm | Clear | 48°F | 36°F | 62% | 29.99 | |
KIAD WASHINGTON DULLES INTL,VA | 19 sm | 15 min | NNW 13G21 | 10 sm | Overcast | 52°F | 36°F | 54% | 30.00 | |
KFME TIPTON,MD | 22 sm | 8 min | WNW 09 | 10 sm | Mostly Cloudy | 50°F | 41°F | 71% | 30.00 |
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
Thu -- 05:07 AM EDT 0.40 feet Low Tide
Thu -- 06:58 AM EDT Sunrise
Thu -- 08:22 AM EDT Moonset
Thu -- 10:55 AM EDT 3.35 feet High Tide
Thu -- 06:03 PM EDT 0.39 feet Low Tide
Thu -- 07:28 PM EDT Sunset
Thu -- 11:05 PM EDT Moonrise
Thu -- 11:32 PM EDT 2.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 05:07 AM EDT 0.40 feet Low Tide
Thu -- 06:58 AM EDT Sunrise
Thu -- 08:22 AM EDT Moonset
Thu -- 10:55 AM EDT 3.35 feet High Tide
Thu -- 06:03 PM EDT 0.39 feet Low Tide
Thu -- 07:28 PM EDT Sunset
Thu -- 11:05 PM EDT Moonrise
Thu -- 11:32 PM EDT 2.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Reagan National Airport, Washington, D.C., Tide feet
12 am |
2.7 |
1 am |
2.2 |
2 am |
1.6 |
3 am |
1 |
4 am |
0.6 |
5 am |
0.4 |
6 am |
0.5 |
7 am |
1 |
8 am |
1.8 |
9 am |
2.6 |
10 am |
3.2 |
11 am |
3.4 |
12 pm |
3.1 |
1 pm |
2.6 |
2 pm |
2 |
3 pm |
1.4 |
4 pm |
0.9 |
5 pm |
0.5 |
6 pm |
0.4 |
7 pm |
0.5 |
8 pm |
1.1 |
9 pm |
1.8 |
10 pm |
2.5 |
11 pm |
2.8 |
Sterling, VA,
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