Marine Weather and Tide Forecast for Chester, MD
May 16, 2024 4:58 PM EDT (20:58 UTC) Change Location
 | Sunrise 5:48 AM Sunset 8:14 PM Moonrise 12:41 PM Moonset 1:40 AM |
ANZ530 Chesapeake Bay North Of Pooles Island- 433 Pm Edt Thu May 16 2024
.small craft advisory in effect until 10 pm edt this evening - .
Rest of this afternoon - N winds 15 kt with gusts to 20 kt. Waves 1 ft.
Tonight - NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Fri - E winds 5 to 10 kt. Waves 1 ft.
Fri night - SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Sat - E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Sat night - E winds 10 to 15 kt. Waves 1 ft. A chance of showers.
Sun - E winds 10 to 15 kt - .becoming ne 5 kt after midnight. Waves 1 ft. A chance of showers in the morning.
Mon - E winds 5 to 10 kt. Waves 1 ft.
ANZ500 433 Pm Edt Thu May 16 2024
Synopsis for the tidal potomac and md portion of the chesapeake bay -
low pressure and its associated cold front will push offshore today as weak high pressure builds over the waters from the south. Additional waves of low pressure and slow-moving fronts will pass through the region late Friday into the weekend. Weak high pressure will briefly return to the waters Monday and Tuesday before another low pressure system impacts the waters midweek. Small craft advisories may be needed for portions of the waters Saturday and Sunday.
low pressure and its associated cold front will push offshore today as weak high pressure builds over the waters from the south. Additional waves of low pressure and slow-moving fronts will pass through the region late Friday into the weekend. Weak high pressure will briefly return to the waters Monday and Tuesday before another low pressure system impacts the waters midweek. Small craft advisories may be needed for portions of the waters Saturday and Sunday.
Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 161825 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 225 PM EDT Thu May 16 2024
SYNOPSIS
An area of low pressure will remain offshore of the Middle Atlantic coast through Friday, before drifting out to sea. High pressure tries to build down into the area from the northeast over the weekend.
Another area of low pressure moves across the central Appalachians and offshore of the North Carolina coast later Sunday into Sunday night. Weak high pressure may finally build across the area early next week, before a cold front arrives later Wednesday.
NEAR TERM /THROUGH FRIDAY/
215 PM...Very little change is expected through this afternoon as a slow moving coastal low continues to linger off the coast of NJ. This will keep it mainly cloudy with some areas of drizzle around and even a little very light rain at times mainly over NJ, especially near the coast. Some patchy drizzle could also occur as far west as our eastern PA zones adjacent to NJ as well as over Delaware. West zones across eastern MD northward through Berks County then on into the Lehigh Valley shouldn't see anything today as far as precip and have the best chance for continuing to see a little sun from time to time.
As we go into tonight, both the surface low and its associated upper level circulation will drift farther out to sea allowing for some weak ridging to start to build in. While this could initially result in some clearing by later this evening, it's likely that this would be short lived as low stratus and even some fog likely redevelops overnight. Any drizzle/light rain, however should be coming to an end through this evening. Expect lows tonight once again mainly in the 50s.
Friday is still shaping up to be a dry day across the area in between systems as weak surface ridging continues to build in.
However winds will remain onshore out of the east and this will tend to keep the low stratus in place. And while there may be some breaks or partial clearing briefly around midday or early afternoon, even if it occurs it would be short lived as clouds increase again by late day ahead of the next system. It should be a little warmer than today with most areas seeing low 70s for highs. Near the coast and over the southern Poconos it will be cooler though with temperatures in the 60s.
SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/
Not the greatest of weather weekends upcoming, but Sunday could end up being not too bad. A slow moving low and front approach from the Tenn./Ohio valley areas Saturday but then it drifts back south/east Sunday. The northern parts of the region will probably do the best with (only) a chance for showers Sat and perhaps dry all of Sunday. Delmarva and south NJ will likely have showers Sat, but will trend drier Sunday with perhaps sunshine late Sunday. Either way, Saturday will have cloudy skies most areas and Sunday will be cloudy south and partly (or mostly) sunny north/west. High temperatures will be cool Saturday (60s) but will climb back into the 70s by Sunday except for Delmarva and south NJ where highs mostly 60s will be found. The warmest mercury readings both Sat and Sunday will be across the North areas where more sunshine is expected.
LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/
After the poor weather over the weekend, next week is shaping up to feature some drier conditions with more seasonable temperatures. The upper low across the Carolinas Sunday night and Monday slowly spins offshore while upper ridging takes place across the Middle Atlantic.
Fair weather Mon thru Wed with high temperatures mostly in the mid/upper 70s with low 70s for the far NW areas and close to the shore. Lows mostly in the 50s with some mid/upper 40s for the Pine Barrens and southern Poconos.
The next opportunity for showers will arrive Wed night/Thu as an upper short wave and surface cold front advance across the Great Lakes and then into our region. The upper flow will become more progressive by then, so the systems will not sit and spin like they are this week. We'll carry chance pops for Wed night/Thu at this stage. Temperatures will go a little above normal with more upper 70s across the area.
AVIATION /19Z THURSDAY THROUGH TUESDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas...
This afternoon....It will continue to generally hover near low end VFR vs. high end MVFR through this afternoon with the lowest cigs at sites farthest east (ACY, MIV, TTN) and higher cigs farther west at places like ILG and RDG. In fact ACY will likely be near or at IFR cig thresholds. Winds generally northeast 10 to 15 with some gusts of 20 to 25 knots. Moderate confidence on the overall pattern, but low confidence on exactly which flight category the ceilings will be in.
Tonight...Early this evening, expect similar conditions as to today...maybe even some brief improvement if clouds break up for a time. However low stratus and/or mist/fog expected again overnight with widespread low end MVFR to even IFR cigs (IFR likely at MIV and ACY) and also the potential for some reduced visibilities. If more clearing occurs this evening, this could make fog (IFR visbys) more of a concern but right now it's still looking like more of a low stratus night. For this reason forecast confidence for tonight is relatively low. Winds northeast tonight 5 to 10 knots.
Friday...MVFR/IFR to start the day (IFR at MIV and ACY) with some improvement heading into the afternoon to high end MVFR or low VFR. Northeast winds 5 to 10 knots becoming more easterly in the afternoon and then eventually more ESE by late day.
Outlook...
Fri night/Sat ... Cloudy with showers at times. VFR, except MVFR possible with showers.
Sunday... VFR probable. MVFR early for KACY/KMIV/KILG.
Mon/Tue... Mostly VFR.
MARINE
For the Atlantic coastal waters, expect Small Craft Advisory conditions to continue through Friday, mainly due to seas. It should stay sub SCA on the Delaware Bay through this time.
Outlook...
Conditions will remain below SCA this weekend and into next week.
Having said that, a few SCA gusts are possible Sunday morning but confidence in it is low and any effects should be spotty and limited.
Showers are expected Sat/Sat night. On Sunday, early showers will diminish from north to south. Fair weather is expected Monday and into Tuesday.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 6 PM EDT Friday for ANZ450>455.
Area Forecast Discussion National Weather Service Mount Holly NJ 225 PM EDT Thu May 16 2024
SYNOPSIS
An area of low pressure will remain offshore of the Middle Atlantic coast through Friday, before drifting out to sea. High pressure tries to build down into the area from the northeast over the weekend.
Another area of low pressure moves across the central Appalachians and offshore of the North Carolina coast later Sunday into Sunday night. Weak high pressure may finally build across the area early next week, before a cold front arrives later Wednesday.
NEAR TERM /THROUGH FRIDAY/
215 PM...Very little change is expected through this afternoon as a slow moving coastal low continues to linger off the coast of NJ. This will keep it mainly cloudy with some areas of drizzle around and even a little very light rain at times mainly over NJ, especially near the coast. Some patchy drizzle could also occur as far west as our eastern PA zones adjacent to NJ as well as over Delaware. West zones across eastern MD northward through Berks County then on into the Lehigh Valley shouldn't see anything today as far as precip and have the best chance for continuing to see a little sun from time to time.
As we go into tonight, both the surface low and its associated upper level circulation will drift farther out to sea allowing for some weak ridging to start to build in. While this could initially result in some clearing by later this evening, it's likely that this would be short lived as low stratus and even some fog likely redevelops overnight. Any drizzle/light rain, however should be coming to an end through this evening. Expect lows tonight once again mainly in the 50s.
Friday is still shaping up to be a dry day across the area in between systems as weak surface ridging continues to build in.
However winds will remain onshore out of the east and this will tend to keep the low stratus in place. And while there may be some breaks or partial clearing briefly around midday or early afternoon, even if it occurs it would be short lived as clouds increase again by late day ahead of the next system. It should be a little warmer than today with most areas seeing low 70s for highs. Near the coast and over the southern Poconos it will be cooler though with temperatures in the 60s.
SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/
Not the greatest of weather weekends upcoming, but Sunday could end up being not too bad. A slow moving low and front approach from the Tenn./Ohio valley areas Saturday but then it drifts back south/east Sunday. The northern parts of the region will probably do the best with (only) a chance for showers Sat and perhaps dry all of Sunday. Delmarva and south NJ will likely have showers Sat, but will trend drier Sunday with perhaps sunshine late Sunday. Either way, Saturday will have cloudy skies most areas and Sunday will be cloudy south and partly (or mostly) sunny north/west. High temperatures will be cool Saturday (60s) but will climb back into the 70s by Sunday except for Delmarva and south NJ where highs mostly 60s will be found. The warmest mercury readings both Sat and Sunday will be across the North areas where more sunshine is expected.
LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/
After the poor weather over the weekend, next week is shaping up to feature some drier conditions with more seasonable temperatures. The upper low across the Carolinas Sunday night and Monday slowly spins offshore while upper ridging takes place across the Middle Atlantic.
Fair weather Mon thru Wed with high temperatures mostly in the mid/upper 70s with low 70s for the far NW areas and close to the shore. Lows mostly in the 50s with some mid/upper 40s for the Pine Barrens and southern Poconos.
The next opportunity for showers will arrive Wed night/Thu as an upper short wave and surface cold front advance across the Great Lakes and then into our region. The upper flow will become more progressive by then, so the systems will not sit and spin like they are this week. We'll carry chance pops for Wed night/Thu at this stage. Temperatures will go a little above normal with more upper 70s across the area.
AVIATION /19Z THURSDAY THROUGH TUESDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas...
This afternoon....It will continue to generally hover near low end VFR vs. high end MVFR through this afternoon with the lowest cigs at sites farthest east (ACY, MIV, TTN) and higher cigs farther west at places like ILG and RDG. In fact ACY will likely be near or at IFR cig thresholds. Winds generally northeast 10 to 15 with some gusts of 20 to 25 knots. Moderate confidence on the overall pattern, but low confidence on exactly which flight category the ceilings will be in.
Tonight...Early this evening, expect similar conditions as to today...maybe even some brief improvement if clouds break up for a time. However low stratus and/or mist/fog expected again overnight with widespread low end MVFR to even IFR cigs (IFR likely at MIV and ACY) and also the potential for some reduced visibilities. If more clearing occurs this evening, this could make fog (IFR visbys) more of a concern but right now it's still looking like more of a low stratus night. For this reason forecast confidence for tonight is relatively low. Winds northeast tonight 5 to 10 knots.
Friday...MVFR/IFR to start the day (IFR at MIV and ACY) with some improvement heading into the afternoon to high end MVFR or low VFR. Northeast winds 5 to 10 knots becoming more easterly in the afternoon and then eventually more ESE by late day.
Outlook...
Fri night/Sat ... Cloudy with showers at times. VFR, except MVFR possible with showers.
Sunday... VFR probable. MVFR early for KACY/KMIV/KILG.
Mon/Tue... Mostly VFR.
MARINE
For the Atlantic coastal waters, expect Small Craft Advisory conditions to continue through Friday, mainly due to seas. It should stay sub SCA on the Delaware Bay through this time.
Outlook...
Conditions will remain below SCA this weekend and into next week.
Having said that, a few SCA gusts are possible Sunday morning but confidence in it is low and any effects should be spotty and limited.
Showers are expected Sat/Sat night. On Sunday, early showers will diminish from north to south. Fair weather is expected Monday and into Tuesday.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 6 PM EDT Friday for ANZ450>455.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| TCBM2 - 8573364 - Tolchester Beach, MD | 10 mi | 59 min | NNE 8.9G | 70°F | 29.75 | |||
| 44043 - Patapsco, MD | 18 mi | 53 min | NNE 9.7G | 69°F | 66°F | 1 ft | ||
| CPVM2 | 23 mi | 59 min | 68°F | 63°F | ||||
| CBCM2 | 25 mi | 59 min | NNE 8G | 72°F | 66°F | 29.72 | 59°F | |
| FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 25 mi | 59 min | NE 12G | 73°F | ||||
| 44063 - Annapolis | 26 mi | 47 min | N 7.8G | 70°F | 64°F | 1 ft | ||
| CHCM2 - 8573927 - Chesapeake City, MD | 26 mi | 59 min | N 8G | 71°F | 66°F | 29.74 | ||
| APAM2 - 8575512 - Annapolis, MD | 27 mi | 59 min | N 8.9G | 73°F | 71°F | 29.74 | ||
| BLTM2 - 8574680 - Baltimore, MD | 28 mi | 59 min | N 9.9G | 74°F | 68°F | |||
| TPLM2 - Thomas Point, MD | 29 mi | 59 min | N 13G | 68°F | 29.77 | |||
| DELD1 - 8551762 - Delaware City, DE | 36 mi | 59 min | NNE 12G | 68°F | 29.73 | |||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 37 mi | 59 min | N 15G | 67°F | 29.73 | |||
| CA2 - 8571892 - Cambridge, MD | 44 mi | 59 min | N 13G | 72°F | 66°F | 29.74 | ||
| BSLM2 - Chesapeake Bay, MD | 45 mi | 89 min | N 4.1 | 75°F | 29.74 | 58°F | ||
| 44062 - Gooses Reef, MD | 49 mi | 47 min | N 14G | 65°F | 65°F | 1 ft |
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KAPG PHILLIPS AAF,MD | 19 sm | 63 min | NNE 07G17 | 10 sm | Mostly Cloudy | 73°F | 59°F | 61% | 29.74 | |
| KMTN MARTIN STATE,MD | 20 sm | 65 min | NNW 08G16 | 10 sm | Mostly Cloudy | 75°F | 57°F | 54% | 29.76 |
Chestertown
Click for Map
Thu -- 02:39 AM EDT Moonset
Thu -- 02:46 AM EDT 2.16 feet High Tide
Thu -- 05:49 AM EDT Sunrise
Thu -- 08:57 AM EDT 0.94 feet Low Tide
Thu -- 01:40 PM EDT Moonrise
Thu -- 03:11 PM EDT 2.20 feet High Tide
Thu -- 08:12 PM EDT Sunset
Thu -- 09:42 PM EDT 0.91 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 02:39 AM EDT Moonset
Thu -- 02:46 AM EDT 2.16 feet High Tide
Thu -- 05:49 AM EDT Sunrise
Thu -- 08:57 AM EDT 0.94 feet Low Tide
Thu -- 01:40 PM EDT Moonrise
Thu -- 03:11 PM EDT 2.20 feet High Tide
Thu -- 08:12 PM EDT Sunset
Thu -- 09:42 PM EDT 0.91 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Chestertown, Maryland, Tide feet
| 12 am |
| 1.6 |
| 1 am |
| 1.9 |
| 2 am |
| 2.1 |
| 3 am |
| 2.2 |
| 4 am |
| 2 |
| 5 am |
| 1.8 |
| 6 am |
| 1.5 |
| 7 am |
| 1.2 |
| 8 am |
| 1 |
| 9 am |
| 0.9 |
| 10 am |
| 1 |
| 11 am |
| 1.2 |
| 12 pm |
| 1.5 |
| 1 pm |
| 1.8 |
| 2 pm |
| 2.1 |
| 3 pm |
| 2.2 |
| 4 pm |
| 2.1 |
| 5 pm |
| 2 |
| 6 pm |
| 1.7 |
| 7 pm |
| 1.4 |
| 8 pm |
| 1.1 |
| 9 pm |
| 1 |
| 10 pm |
| 0.9 |
| 11 pm |
| 1.1 |
Baltimore Harbor Approach
Click for Map
Thu -- 12:55 AM EDT 0.65 knots Max Flood
Thu -- 02:40 AM EDT Moonset
Thu -- 04:15 AM EDT -0.00 knots Slack
Thu -- 05:51 AM EDT Sunrise
Thu -- 06:56 AM EDT -0.45 knots Max Ebb
Thu -- 09:40 AM EDT 0.00 knots Slack
Thu -- 12:48 PM EDT 0.57 knots Max Flood
Thu -- 01:41 PM EDT Moonrise
Thu -- 03:43 PM EDT -0.00 knots Slack
Thu -- 07:11 PM EDT -0.77 knots Max Ebb
Thu -- 08:12 PM EDT Sunset
Thu -- 10:31 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:55 AM EDT 0.65 knots Max Flood
Thu -- 02:40 AM EDT Moonset
Thu -- 04:15 AM EDT -0.00 knots Slack
Thu -- 05:51 AM EDT Sunrise
Thu -- 06:56 AM EDT -0.45 knots Max Ebb
Thu -- 09:40 AM EDT 0.00 knots Slack
Thu -- 12:48 PM EDT 0.57 knots Max Flood
Thu -- 01:41 PM EDT Moonrise
Thu -- 03:43 PM EDT -0.00 knots Slack
Thu -- 07:11 PM EDT -0.77 knots Max Ebb
Thu -- 08:12 PM EDT Sunset
Thu -- 10:31 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Baltimore Harbor Approach, Maryland Current, knots
| 12 am |
| 0.6 |
| 1 am |
| 0.7 |
| 2 am |
| 0.6 |
| 3 am |
| 0.4 |
| 4 am |
| 0.1 |
| 5 am |
| -0.2 |
| 6 am |
| -0.4 |
| 7 am |
| -0.4 |
| 8 am |
| -0.4 |
| 9 am |
| -0.2 |
| 10 am |
| 0.1 |
| 11 am |
| 0.3 |
| 12 pm |
| 0.5 |
| 1 pm |
| 0.6 |
| 2 pm |
| 0.5 |
| 3 pm |
| 0.2 |
| 4 pm |
| -0.1 |
| 5 pm |
| -0.4 |
| 6 pm |
| -0.7 |
| 7 pm |
| -0.8 |
| 8 pm |
| -0.7 |
| 9 pm |
| -0.5 |
| 10 pm |
| -0.2 |
| 11 pm |
| 0.2 |
Dover AFB, DE,
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