Naval Academy, MD Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Naval Academy, MD

April 30, 2024 4:19 PM EDT (20:19 UTC) Change Location
Sunrise 6:06 AM   Sunset 7:59 PM
Moonrise 12:57 AM   Moonset 10:12 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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Marine Forecasts
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ANZ532 Chesapeake Bay From Sandy Point To North Beach- 359 Pm Edt Tue Apr 30 2024

.small craft advisory in effect until midnight edt tonight - .

Rest of this afternoon - S winds 10 kt. Waves 2 ft.

Tonight - W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.

Wed - NW winds 5 to 10 kt - .becoming E late. Waves 1 ft.

Wed night - S winds 5 kt. Waves less than 1 ft.

Thu - S winds 5 to 10 kt. Waves 1 ft.

Thu night - S winds 5 to 10 kt - .becoming ne after midnight. Waves 1 ft.

Fri - E winds 10 to 15 kt. Waves 1 to 2 ft.

Sat - E winds 10 kt. Waves 2 ft. A chance of showers, then showers likely after midnight.

ANZ500 359 Pm Edt Tue Apr 30 2024

Synopsis for the tidal potomac and md portion of the chesapeake bay -
a cold front crosses the waters this evening into Wednesday morning bringing chances for showers and Thunderstorms. High pressure briefly returns Thursday before another slow moving front crosses the local waters over the weekend. Small craft advisories may be needed on Friday and Saturday.


7 Day Forecast for Marine Location Near Naval Academy, MD
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Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 301834 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 234 PM EDT Tue Apr 30 2024

SYNOPSIS
A cold front will slowly push through the region this afternoon and evening bringing scattered showers and thunderstorms. A few showers linger Wednesday morning with dry high pressure settling back in for the afternoon. Warm and dry conditions continue Thursday before shower and thunderstorm chances return with another front Friday into the start of the weekend.

NEAR TERM /THROUGH TONIGHT/
Subtle relief from the heat in the form of a cold front/lee trough is expected to pass through the region later this afternoon and evening. The front is evident on radar with a band of precipitation extending from Lake Erie south along the Ohio River into eastern Kentucky. This area of precipitation will continue to slowly move east this afternoon allowing for an uptick in cloud cover across our region heading into mid-afternoon. As for precipitation chances, 12z hi-res CAM guidance continues to show varying differences in regards to timing and coverage.

Most of the guidance shows the leading edge of the precipitation entering our western most counties (i.e Garrett Co. MD and Pendleton/Hardy Co. WV ) around 2-5pm with isolated showers along the higher ridgetops of the Blue Ridge/Alleghenies during this same timing window. The main band of shower and thunderstorm activity will work into the I-81/Blue Ridge corridor between 5-8pm before shifting toward the metros and dissipating after sunset. As for the threat of severe weather, it remains low, but not zero. Instability will remain fairly low on the order of 500- 1000 j/kg with 0-6km bulk effective shear values running 20-30 kts and mid-level lapse rates around 6-7 degree C km. Both SPC, CSU Machine Learning, and CIPS analogue products continue to point to a very low probability of severe weather. Even with that said, one or two storms could become strong given the antecedent conditions especially west of the Blue Ridge. Biggest threats with any storms this afternoon and evening looks to be wind gusts 40-50 mph, frequent lightning, and locally heavy rainfall (PWATS running 0.75- 1.25 inches).

High temperatures today will push back into the mid to upper 80s with 70s over the mountains/near the bay. Metro areas could flirt with 90 degrees. Heat index values will remain below 90 degrees given the fact that dewpoints will remain in the mid to upper 50s and low 60s.

Storms move out of the area before midnight, with a slight chance of showers lingering through early Wednesday morning as the front moves to our south and east. Lows tonight will fall back into the upper 50s and low 60s with areas of patchy fog that due see the rain.



SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/
The cold front that passed through the region Tuesday night will lift back to the north Wednesday morning into Wednesday afternoon as the upper level trough pivots overhead. This will allow for the continuation of a few scattered showers and perhaps an isolated thunderstorm for areas mainly east of I-81 Wednesday morning into Wednesday midday. Beyond midday Wednesday, 12z guidance continues to trend drier with quick clearing from west to east as shortwave ridging/high pressure over the Lower Tennessee/Ohio River Valleys builds back into the region. At the same time an additional isolated shower or thunderstorm cannot be ruled out over eastern VA and southern MD as shortwave low pressure drifts across the Carolinas.
High pressure slides over the southern Appalachians and Blue Ridge Wednesday evening into Thursday leading to a continuation of quiet weather conditions. Highs Wednesday will push into the mid to upper 70s and low 80s with overnight lows in the mid to upper 50s.

Upper level ridging firmly builds over the area Thursday leading to a continuation of warm and dry conditions. 850 mb temperatures will be back up around +13 to +17 degrees C with PWAT values around 1".
Meanwhile, a moisture starved cold front will sit across western portions of the forecast area acting as a catalyst for perhaps an isolated mountain shower or thunderstorm. Elsewhere across the region expect dry conditions with passing fairly weather strato- cumulus during the peak heating of the day. High temperatures will remain above average in the low to mid 80s with 70s over the mountains. Metro areas will be a tad warmer with highs closer to 90 degrees. Lows Thursday night will fall back into the mid to upper 50s.

LONG TERM /FRIDAY THROUGH TUESDAY/
A mostly dry period on Friday will soon be met with increasing moisture ahead of the next front system early Saturday and through much of the weekend. The front will slowly move through the Mid- Atlantic region during the weekend, with QPF totals reaching nearly an inch in localized areas. Some isolated instances of flooding will be possible with increase precipitation and the drier antecedent conditions across the area. Convection should be fairly weak if it were to occur this weekend given the lack of instability parameters.
More afternoon, summertime precipitation will likely spawn Monday and Tuesday with a lingering boundary nearby off to the south of the area.

Temperatures will fluctuate late this week into early next weekend with the cold front passage. Highs in the upper 70s to low 80s on Friday will be followed by low to mid 60s by Saturday. A progressive warmup will follow Sunday into early next week with highs in the low to mid 80s by Tuesday.

AVIATION /19Z TUESDAY THROUGH SUNDAY/
VFR conditions are expected this afternoon ahead of precipitation associated with a cold front later this evening and into the first part of the overnight period. The front will push into areas west of KCBE/KEKN between 18-21z/2-5pm before advancing east toward KMRB, KHGR, and KSHD around 21-00z/5-8pm. Beyond this point, shower and thunderstorm activity will advance eastward into the corridor (between 00-03z/8-11pm) while gradually weakening. Overall coverage will be scattered across the terminals this evening and into the overnight hours. Some thunderstorms may be locally strong especially west of a line from KHGR down to KSHD where better instability can be found. Gusts of 35 knots or greater are possible with some of these stronger storms, along with frequent lightning strikes and locally heavy rainfall. With that said, some MVFR cig and vsby reductions are possible in and around any shower or thunderstorm activity that forms. Any showers or thunderstorms should move out of the terminals before 04z/12am with just a few spotty showers lingering at terminals east of the Blue Ridge during the pre-dawn hours Wednesday morning.

VFR conditions are expected to continue Wednesday despite a few lingering morning showers and perhaps an isolated thunderstorm for terminals south and east of KDCA and KCHO. 12z model guidance has trended drier as strong upper level ridging/high pressure build back into the region. Southwesterly winds today will shift to northwesterly winds on Wednesday. Winds gust between 10-15 knots this afternoon with winds gusting up to 20 knots at DCA. Winds diminish overnight before remaining light on Wednesday, blowing between 5-10 knots.

VFR conditions are expected through Friday, with sub-VFR ceilings possible Saturday as increasing showers approach the terminals.

MARINE
SCAs continue through midnight for southwest winds 10 to 15 knots with gusts up to 20 kts at times. These winds are due in part to a tightened gradient ahead of a cold front and lee trough set to swing across the waters later this evening. The front will bring the risk for scattered showers and thunderstorms especially after 7pm/23z. An SMW (Special Marine Warnings) or two may be needed for any strong thunderstorms that do look to form. Most of the activity will be below severe limits and fairly isolated to scattered in nature.
Within stronger storms expect gusts of 35 knots or greater, frequent lightning, and locally heavy rainfall.

A few showers will linger near the waters Wednesday morning as an additional piece of upper level energy swings through. Winds will shift to the northwest in the wake of the front and will likely stay below SCA criteria.

Marginal SCA conditions could occur in channeling on the bay Thursday and Friday afternoon/evening. Otherwise no marine hazards are expected with south winds Thursday switching to the southeast Friday.

Marginal SCA winds will be possible through the weekend. SCAs may be needed during this period as another front passes through.



CLIMATE
Below is a list of record high temperatures for today, April 30th.

Apr 30th Climate Site Record High Forecast High Washington-National (DCA) 92F (1942+) 87F Washington-Dulles (IAD) 86F (2017+) 85F Baltimore (BWI) 92F (1910) 87F Martinsburg (MRB) 91F (1974+) 84F

+ denotes that multiple years reached this value, but the depicted year is the most recent

LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory until midnight EDT tonight for ANZ530>543.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
APAM2 - 8575512 - Annapolis, MD 1 mi49 min E 5.1G7 75°F 68°F29.81
44063 - Annapolis 2 mi43 min S 7.8G7.8 70°F 64°F1 ft
CPVM2 4 mi49 min 71°F 61°F
TPLM2 - Thomas Point, MD 7 mi79 min SSE 9.9G11 72°F 29.86
44043 - Patapsco, MD 12 mi43 min S 14G18 69°F 63°F1 ft
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 16 mi49 min E 2.9G4.1 80°F
CBCM2 17 mi49 min NE 1G2.9 81°F 68°F29.7960°F
BSLM2 - Chesapeake Bay, MD 19 mi49 min SSW 6 84°F 29.8359°F
BLTM2 - 8574680 - Baltimore, MD 20 mi49 min SW 4.1G8 87°F 65°F
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi49 min SSW 8.9G13 81°F 29.82
44062 - Gooses Reef, MD 30 mi43 min SW 5.8G5.8 71°F 63°F1 ft
WASD2 - 8594900 - Washington, DC 30 mi49 min S 9.9G13 79°F 67°F29.82
CA2 - 8571892 - Cambridge, MD 36 mi49 min WSW 8.9G15 83°F 64°F29.85
COVM2 - 8577018 - Cove Point LNG Pier, MD 41 mi49 min SSE 13G22 82°F 29.85
SLIM2 - 8577330 - Solomons Island, MD 46 mi49 min SW 13G19 78°F 60°F29.84


Wind History for Francis Scott Key Bridge NE Tower, MD
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KBWI BALTIMORE/WASHINGTON INTL THURGOOD MARSHALL,MD 17 sm25 minWNW 0810 smMostly Cloudy86°F55°F35%29.80
KFME TIPTON,MD 17 sm10 minSSW 0810 smClear82°F59°F45%29.84
KCGS COLLEGE PARK,MD 24 sm9 minSSE 0910 smClear86°F57°F38%29.82
KMTN MARTIN STATE,MD 24 sm24 minSE 1010 smClear81°F61°F51%29.82
Link to 5 minute data for KNAK


Wind History from NAK
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Tide / Current for U.S. Naval Academy, Annapolis, Maryland
   
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U.S. Naval Academy
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Tue -- 01:56 AM EDT     Moonrise
Tue -- 03:56 AM EDT     0.23 feet Low Tide
Tue -- 06:08 AM EDT     Sunrise
Tue -- 10:58 AM EDT     1.42 feet High Tide
Tue -- 11:12 AM EDT     Moonset
Tue -- 05:46 PM EDT     0.52 feet Low Tide
Tue -- 07:58 PM EDT     Sunset
Tue -- 10:43 PM EDT     0.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

U.S. Naval Academy, Annapolis, Maryland, Tide feet
12
am
0.7
1
am
0.5
2
am
0.4
3
am
0.3
4
am
0.2
5
am
0.3
6
am
0.5
7
am
0.7
8
am
1
9
am
1.2
10
am
1.4
11
am
1.4
12
pm
1.4
1
pm
1.2
2
pm
1
3
pm
0.8
4
pm
0.7
5
pm
0.5
6
pm
0.5
7
pm
0.6
8
pm
0.7
9
pm
0.8
10
pm
0.9
11
pm
0.9



Tide / Current for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
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Tue -- 01:39 AM EDT     -0.00 knots Slack
Tue -- 01:56 AM EDT     Moonrise
Tue -- 04:22 AM EDT     -0.35 knots Max Ebb
Tue -- 06:07 AM EDT     Sunrise
Tue -- 06:47 AM EDT     0.00 knots Slack
Tue -- 10:45 AM EDT     0.83 knots Max Flood
Tue -- 11:12 AM EDT     Moonset
Tue -- 02:16 PM EDT     -0.00 knots Slack
Tue -- 05:44 PM EDT     -0.81 knots Max Ebb
Tue -- 07:57 PM EDT     Sunset
Tue -- 09:34 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Baltimore Harbor Approach, Maryland Current, knots
12
am
0.3
1
am
0.1
2
am
-0.1
3
am
-0.2
4
am
-0.3
5
am
-0.3
6
am
-0.2
7
am
0.1
8
am
0.3
9
am
0.6
10
am
0.8
11
am
0.8
12
pm
0.7
1
pm
0.5
2
pm
0.1
3
pm
-0.3
4
pm
-0.6
5
pm
-0.8
6
pm
-0.8
7
pm
-0.7
8
pm
-0.5
9
pm
-0.2
10
pm
0.1
11
pm
0.3




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