Leonard, MD Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Leonard, MD


September 23, 2023 10:55 AM EDT (14:55 UTC)
Sunrise 6:55AM   Sunset 7:05PM   Moonrise  2:37PM   Moonset 11:43PM 

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. Privacy and Cookie policy

Marine Forecasts
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ANZ542 Patuxent River To Broomes Island Md- 746 Am Edt Sat Sep 23 2023
.tropical storm warning in effect...
Today..NE winds 25 kt with gusts to 45 kt. Waves 2 ft. Isolated tstms. Rain. Vsby 1 to 3 nm.
Tonight..NE winds 25 to 30 kt...becoming se 10 to 15 kt with gusts to 30 kt after midnight. Waves 1 to 2 ft. Rain.
Sun..S winds 10 kt with gusts to 20 kt. Waves 1 ft. Rain likely.
Sun night..NW winds 10 kt. Waves 1 ft.
Mon..N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Mon night..NE winds 10 kt. Waves 1 ft. A chance of showers.
Tue..NE winds 10 to 15 kt. Waves 1 ft. A chance of showers.
Wed..NE winds 10 to 15 kt. Waves 1 ft. A chance of showers.
winds and waves higher and visibilities lower in and near tstms.

ANZ500 746 Am Edt Sat Sep 23 2023
Synopsis for the tidal potomac and md portion of the chesapeake bay..
tropical storm ophelia will approach the area from the south, moving across the mid-atlantic this weekend. Strong wind gusts in excess of 40 to 50 knots are expected over the waters through Sunday morning. The remnant low pressure system will move north of the area by late Sunday, with high pressure building in from the north by Monday, continuing through mid-week. Small craft advisories will likely be needed Sunday, and again early next week.


7 Day Forecast for Marine Location Near Leonard, MD
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Area Discussion for - Baltimore, MD/Washington
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NOTE: mouseover dotted underlined text for definition
FXUS61 KLWX 231354 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 954 AM EDT Sat Sep 23 2023

SYNOPSIS
Tropical Storm Ophelia will approach the area from the south this morning, then move across the Mid-Atlantic through the weekend. The remnants of Ophelia will exit by late Sunday, with high pressure building in from the north for the early to middle portions of next week.

NEAR TERM /THROUGH TONIGHT/
Tropical Storm Ophelia continues to move inland into eastern North Carolina this morning. The storm is expected to continue north into SE Virginia, then across the Delmarva tomorrow. As Ophelia moves northward, it will transition to an extratropical system as it moves into our area.

We continue to see widespread rain, with embedded bands of moderate to heavy rain spread across the region. Through 10 AM, measured storm total rainfall of 0.50-1.00" with isolated amounts up to 1.50" have fallen along/east of US-15 to I-66 to I-95. To the west, rainfall amounts have been around 0.25-0.50" with some amounts up to 0.75". The strongest northerly winds have been confined to the waterways with 30 to 40 mph gusts observed. Some coastal locations along the Chesapeake Bay have seen gusts up to 20 to 30 mph.

Through Sunday afternoon, expect additional rainfall amounts of 2-3" along/east of I-95, and 1-2" elsewhere. There will be some isolated higher amounts possible, especially if any heavier rain bands develop.

Strong gusty winds will be the big story across the Blue Ridge and along the I-95 corridor and points eastward. Wind Advisories are in effect across these areas along with Tropical Storm Warnings over St. Mary's and Calvert counties. The strongest winds are expected this afternoon and evening, with peak wind gusts of 45 to 55 mph. This likely will lead to some power outages, downed trees, and damage to property. A brief tornado cannot be ruled out over southern Maryland late this afternoon into the evening.

Heading into the late evening and overnight hours, a secondary uptick in rainfall is likely. High-resolutions models have some spatial spread, but the consensus would place the heaviest rainfall near the D.C. metro and points southward. While the system should be rapidly weakening, its enhanced moisture plume (1.75 to 2.00 inch PWATs) will remain in the picture. Given the long duration of the event and longstanding drought conditions in place, most of the rainfall should be beneficial in nature.
However, urbanized areas and locations with fast responding creeks/small streams could see isolated flooding issues. Overall wind fields should be decreasing into the night which allows the Wind Advisories to drop off.

Rain cooled conditions keep temperatures confined to the low/mid 60s, with low 70s over far southern Maryland and 50s across the mountains. At night, low temperature fall off by around 3 to 8 degrees given extensive cloud cover and rainfall.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/
Based on the National Hurricane Center forecast, Ophelia should have diminished to a tropical depression or remnant low. Winds considerably decrease although the threat for showers persist near and ahead of the circulation. High-resolution models carry a swath of enhanced precipitation up toward northeastern Maryland through Sunday afternoon. This would favor a storm total around 2 to 4 inches across the Blue Ridge and along/east of I-95, locally approaching 5 inches in spots. Like the preceding day, clouds will be plentiful. Mid/upper 60s are expected for most, with 50s for mountain locales. Winds become more northwesterly in the wake of the system which should usher in some drier air. However, some showers are possible during the second half of the day, especially from U.S. 50 northward. A few showers may linger into the overnight. Forecast lows range from the low/mid 50s west of the Blue Ridge, to mid 50s to low 60s elsewhere.

As what remains of Ophelia's circulation exits the area, renewed troughing from the west does keep showers in the forecast on Monday. Mostly cloudy skies are in the forecast, accompanied by high temperatures in the mid/upper 60s. A few readings in the low 70s are possible across the more southern locations.
Seasonably cool conditions can be expected overnight with plenty of clouds and additional shower chances.

LONG TERM /TUESDAY THROUGH FRIDAY/
The longwave pattern across North America will remain rather stagnant through much of next week, with troughing across the Pacific Northwest into the western half of Canada, and a broad blocking upper ridge downstream across eastern Canada. An area of weak troughing will reside to the south of that upper ridge across the Great Lakes/Northeast/Mid-Atlantic. At the surface, a strong area of high pressure will be centered to our north across southern Canada. This will maintain east to northeasterly low-level flow across the area through much of the week. Persistent east to northeasterly flow will transport a marine airmass into the region.
When coupled with weak upper level troughing, the result will be lots of cloud cover, below normal temperatures, and occasional showers through much of the week. There are some signs that the pattern may start to break down by Friday, potentially leading to better chances for some sunshine, but ensemble guidance shows considerable spread by that time period. Temperatures will generally reach into the 60s for highs, with lows in the 50s. If more sunshine were to occur on Friday, temperatures may make it back into the 70s.

AVIATION /14Z SATURDAY THROUGH WEDNESDAY/
Widespread rainfall, gusty winds, and sub-VFR conditions continue through tonight as Tropical Storm Ophelia moves north into SE Virginia. IFR conditions likely to persist at all terminals today. This is largely due to the low ceilings accompanied the series of rainbands sweeping northward through the region. Northeast winds will pick up this afternoon and evening, with gusts of 30-40KT. Any thunderstorm chances should remain confined to southern Maryland. Restrictions persist into the overnight hours although winds should drop off into the 20 to 30 knot range.

On Sunday, the region should be within the IFR to MVFR range with showers in the morning and some dry times during the second half of the day. Given the potential for saturated grounds into the night, patchy fog is not out of the question which would lead to additional restrictions. At this point, winds will have shifted to northwesterly as the low center lifts off toward the northeast. Monday remains on the cloudy side with additional shower chances. Thus, some sub-VFR conditions are possible through the day.

Prevailing VFR conditions and northeasterly winds are expected at the terminals on Tuesday and Wednesday. Brief sub-VFR conditions may be possible at times during showers, accompanied by north to north-northeasterly wind fields.

MARINE
Dangerous marine conditions continue across the waters this morning. As Tropical Storm Ophelia moves north across eastern North Carolina into SE Virginia, expect winds to remain high and gust around 30-40KT, with the highest winds up to 50KT south of North Beach.

Small Craft Advisories will likely be needed for portions of the waters for the first half of Sunday. Winds shift to northwesterly by Sunday afternoon with winds dropping below advisory criteria. Some ramp up is possible on Monday given northerly channeling effects.

SCA conditions appear possible in northeasterly flow on both Tuesday and Wednesday.

HYDROLOGY
Tropical Storm Ophelia is expected to move north-northwestward and make landfall somewhere along the North Carolina coastline, and then track northward through our region. Ahead of this system, a strong easterly flow at 850mb of nearly 50 knots will lead to increasing advection of tropical moisture. PWs around two inches along with deep warm cloud layers will combine with the system to bring widespread light to moderate stratiform rain to the region starting late this evening and continuing through early Sunday morning. Bands of moderate to heavy rain will likely be embedded in the large stratiform rain shield and may lead to periods of heavy rain with rates perhaps approaching 1 inches per hour at times east of the Blue Ridge/Catoctin Mountains. Rain totals of 1.5 to 3.5 inches are expected for most of the region east of the I-81 corridor with lesser amounts along the Allegheny front. Locally higher amounts around 5 inches or a bit higher will be possible over parts of southern MD, and along the Blue Ridge Mountains where orographic lift could enhance precipitation totals.

The extended nature of the precipitation event combined with abnormally dry conditions will likely limit the overall threat for flooding. Isolated nuisance flooding will be possible in urban areas and along smaller stream basins. River flooding is not expected at this time, but if there is considerable enhancement from orographic lift, some smaller river basins could experience some minor flood issues.

TIDES/COASTAL FLOODING
Tidal anomalies will continue to rise today within continued onshore flow as Tropical Storm Ophelia continues to approach from the south.
Most locations will likely experience Minor tidal flooding by the tide cycle later this afternoon into tonight, with Moderate flooding possible at Straits Point, Annapolis, and DC. Minor flooding will remain possible during the day Sunday.

LWX WATCHES/WARNINGS/ADVISORIES
DC...Wind Advisory until 8 PM EDT this evening for DCZ001.
Coastal Flood Warning until 7 AM EDT Sunday for DCZ001.
MD...Tropical Storm Warning for MDZ017-018.
Wind Advisory until 8 PM EDT this evening for MDZ008-011-013- 014-016-503>506-508.
Coastal Flood Advisory until 5 AM EDT Sunday for MDZ013.
Coastal Flood Warning from 8 PM this evening to 8 AM EDT Sunday for MDZ014.
Coastal Flood Advisory until 2 PM EDT Sunday for MDZ016.
Coastal Flood Warning until 2 AM EDT Sunday for MDZ017.
Coastal Flood Advisory until 2 AM EDT Sunday for MDZ018.
VA...Wind Advisory until 8 PM EDT this evening for VAZ053>057-502- 506>508-526-527.
Coastal Flood Advisory until 5 AM EDT Sunday for VAZ053-055- 527.
Coastal Flood Advisory until 2 PM EDT Sunday for VAZ057.
Coastal Flood Advisory until 6 AM EDT Sunday for VAZ054.
WV...None.
MARINE...Gale Warning until midnight EDT tonight for ANZ530>532-535-536- 538>540.
Tropical Storm Warning for ANZ533-534-537-541>543.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
SLIM2 - 8577330 - Solomons Island, MD 10 mi62 min NNE 20G28 64°F 74°F29.83
PPTM2 - 8578240 - Piney Point, MD 11 mi62 min NE 18G25
COVM2 - 8577018 - Cove Point LNG Pier, MD 15 mi62 min N 23G33 64°F 29.87
44062 - Gooses Reef, MD 22 mi50 min NNE 29G43 61°F 74°F4 ft30.20
LWTV2 - 8635750 - Lewisetta, VA 22 mi62 min NE 24G33 67°F 70°F29.79
NCDV2 22 mi62 min N 4.1G9.9 61°F 72°F
44042 - Potomac, MD 23 mi50 min NNE 25G35 65°F 74°F3 ft
BISM2 - 8571421 - Bishops Head, MD 32 mi62 min NNE 8.9G21 67°F 67°F29.83
BSLM2 - Chesapeake Bay, MD 35 mi86 min NNE 5.1 60°F 29.9258°F
CA2 - 8571892 - Cambridge, MD 36 mi62 min ENE 19G22 65°F 70°F29.89
TPLM2 - Thomas Point, MD 44 mi56 min N 30G35 62°F 29.94
WASD2 - 8594900 - Washington, DC 46 mi62 min N 8G17 59°F 73°F29.94
44063 - Annapolis 48 mi50 min NE 25G31 60°F 71°F2 ft30.18
APAM2 - 8575512 - Annapolis, MD 49 mi62 min N 15G23 62°F 75°F29.94

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Wind History for Solomons Island, MD
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KNHK PATUXENT RIVER NAS/TRAPNELL FIELD/,MD 12 sm16 minNNE 23G335 smOvercast Lt Rain Mist 66°F63°F88%29.84
KNUI WEBSTER NOLF,MD 14 sm62 minNNE 15G3310 smOvercast Lt Rain 64°F64°F100%29.82

Wind History from 2W6
(wind in knots)


Tide / Current for Leonardtown, Breton Bay, Maryland
   
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Leonardtown
Click for Map
Sat -- 03:24 AM EDT     0.44 feet Low Tide
Sat -- 06:54 AM EDT     Sunrise
Sat -- 09:06 AM EDT     1.61 feet High Tide
Sat -- 02:59 PM EDT     0.38 feet Low Tide
Sat -- 03:37 PM EDT     Moonrise
Sat -- 07:02 PM EDT     Sunset
Sat -- 09:23 PM EDT     1.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Leonardtown, Breton Bay, Maryland, Tide feet
12
am
1
1
am
0.7
2
am
0.6
3
am
0.4
4
am
0.5
5
am
0.6
6
am
1
7
am
1.3
8
am
1.5
9
am
1.6
10
am
1.5
11
am
1.3
12
pm
1
1
pm
0.7
2
pm
0.5
3
pm
0.4
4
pm
0.4
5
pm
0.6
6
pm
1
7
pm
1.4
8
pm
1.8
9
pm
1.9
10
pm
1.9
11
pm
1.7



Tide / Current for Point Patience, 0.1 mile southwest of, Maryland Current
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Point Patience
Click for MapFlood direction 315 true
Ebb direction 145 true

Sat -- 12:47 AM EDT     -0.75 knots Max Ebb
Sat -- 05:45 AM EDT     0.00 knots Slack
Sat -- 06:39 AM EDT     0.13 knots Max Flood
Sat -- 06:54 AM EDT     Sunrise
Sat -- 08:12 AM EDT     -0.00 knots Slack
Sat -- 12:04 PM EDT     -0.41 knots Max Ebb
Sat -- 03:35 PM EDT     0.00 knots Slack
Sat -- 03:36 PM EDT     Moonrise
Sat -- 06:32 PM EDT     0.54 knots Max Flood
Sat -- 07:01 PM EDT     Sunset
Sat -- 09:38 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Point Patience, 0.1 mile southwest of, Maryland Current, knots
12
am
-0.7
1
am
-0.7
2
am
-0.7
3
am
-0.5
4
am
-0.3
5
am
-0.1
6
am
0.1
7
am
0.1
8
am
0
9
am
-0.1
10
am
-0.3
11
am
-0.4
12
pm
-0.4
1
pm
-0.4
2
pm
-0.3
3
pm
-0.1
4
pm
0.1
5
pm
0.3
6
pm
0.5
7
pm
0.5
8
pm
0.4
9
pm
0.2
10
pm
-0.1
11
pm
-0.4




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