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Marine Weather and Tides Stevensville, MD Version 3.4

NOTICE 8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it. 8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue. 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

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Sunrise 7:17AM

Sunset 5:18PM

Saturday January 23, 2021 12:04 PM EST (17:04 UTC)

Moonrise 12:58PM

Moonset 2:49AM

Illumination 78%

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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7 Day Forecast for Marine Location Near Stevensville, MD

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Area Discussion for - Philadelphia/Mount Holly, PA

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FXUS61 KPHI 230904 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 404 AM EST Sat Jan 23 2021

SYNOPSIS. High pressure centered in northern Illinois this morning will drift southeastward and it should pass off the North Carolina coast on Sunday evening. Weakening low pressure is forecast to move from Missouri on Monday to the upper Ohio River Valley on Tuesday, as a secondary low slides off the Middle Atlantic coast. High pressure is expected to nudge into our region from the north on Wednesday. Another low is anticipated to pass off the North Carolina coast on Thursday before moving farther out to sea. High pressure approaching from the west is expected to build across our region on Friday and Saturday.

NEAR TERM /THROUGH TONIGHT/. A cold day is in store along with a gusty wind. A northwesterly flow regime from the Midwest to the Northeast and Mid-Atlantic regions is forecast to amplify some in the East today. This is due to strong short wave energy carving out more of a trough today in the Northeast to Mid-Atlantic. Meanwhile, surface low pressure is forecast to be centered in the Canadian Maritimes with surface high pressure building east from the Midwest and Ohio Valley.

Our region will be between the two aforementioned surface systems resulting in a tight pressure gradient. Cold air advection increased last night and that continues for much of today, resulting in high temperatures in the 20's and 30's. There will be a notable breeze making it feel even colder, with wind chill values in the teens to lower 20s for the balance of the day (0-5F in the higher terrain of the Poconos). The forecast soundings indicate a favorable setup for deeper mixing especially by midday with winds of 30-40 mph available to mix down. The strongest winds may occur from mid-morning through mid-afternoon, then some relaxing of the pressure gradient and the cold air advection weakening some will result in less mixing late in the afternoon and early evening. As a result, the winds should settle as we start this evening.

Northwest flow today will direct lake effect snow bands toward especially northeastern Pennsylvania, however the advection of much drier air and a gradual lowering inversion should limit the southeastward extent of the bands (a few flurries still around very early this morning in parts of the area). Any snow showers or flurries particularly in the Pocono region may end up being confined to this morning as a result.

For tonight, surface high pressure builds closer however it is not forecast to settle right over our region and therefore we remain in an area of an established pressure gradient. Despite this, at least some decouple of the winds should occur tonight especially outside of the higher terrain as an inversion strengthens some. The extent of the winds will have an impact on temperature trends tonight, but either way many areas are forecast to drop into the teens tonight (wind chills still in play with some wind continuing).

SHORT TERM /SUNDAY THROUGH TUESDAY/. Surface high pressure sliding to our southwest and south will likely bring cold dry weather to our region for Sunday and Sunday night. Developing warm advection aloft is expected to bring and increase in mid and high level clouds from Sunday afternoon into Sunday evening.

An initial mid level short wave is forecast to be ejected out of the southwestern states over the weekend. It should reach the central Great Plains on Monday and the eastern Great Lakes late on Tuesday. A weakening surface low is expected to precede the feature with a secondary low developing in the Virginia and North Carolina vicinity before sliding off the coast and out to sea on Monday night and Tuesday.

Precipitation in advance of the complex system should begin to spread into our region from the southwest on Monday afternoon. The precipitation will likely continue into Monday night before gradually losing support aloft on Tuesday and and slowly dissipating.

The forecast temperature profiles continue to suggest mostly snow from the Interstate 78 Corridor northward, mainly rain for the Delmarva south of the canal and far southern New Jersey, and a wintry mix for areas between the two.

The system is not anticipated to have a great deal of moisture associated with it, limiting the snow and sleet accumulations. It appears as though most locations in eastern Pennsylvania, New Jersey and northern Delaware that receive snow will fall in the 1 to 3 inch range.

LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/. A northerly wind is expected to bring an end to any lingering precipitation on Tuesday night, with dry weather and seasonable temperatures for Wednesday.

There remains a fair amount of variability in the way that the different guidance solutions are handling the main mid level trough coming out of the southwestern states on Tuesday. This continues to have implications on the eventual strength and track of another surface low that is forecast to pass off the North Carolina coast on Thursday. We will keep the mention of a chance of wintry precipitation for eastern Maryland, Delaware and southern New Jersey at that time. Depending on model trends over the coming days, we may need to expand the forecast of precipitation a bit farther to the north.

Once Thursday's system moves out to sea, it appears as though high pressure will build into our region from the west for Friday and Saturday.

AVIATION /09Z SATURDAY THROUGH WEDNESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Today . VFR with a ceiling between 4000-6000 feet through at least this morning, then clouds should dissipate from southeast to northwest. Northwest winds 15-20 knots with gusts to around 30 knots (strongest winds should be in the 14-21z time frame). Moderate confidence.

Tonight . VFR. Northwest winds diminishing to around 10 knots in the evening. High confidence.

Outlook .

Sunday . VFR. Northwest wind 10 to 15 knots with gusts around 20 knots. High confidence.

Monday . Mainly VFR. Light wintry precipitation may spread into our region from the southwest during the afternoon. Conditions should deteriorate for Monday evening and Monday night in snow. The snow may mix with sleet and rain at KILG, KMIV and KACY. North to east wind 5 to 10 knots. Low to medium confidence.

Tuesday . MVFR and IFR conditions in snow around KRDG and KABE, a wintry mix of precipitation at KTTN, KPNE and KPHL, and mainly rain around KILG, KMIV and KACY. Northeast wind 5 to 10 knots. Low to medium confidence.

Wednesday . Mainly VFR. North wind 5 to 10 knots. Medium confidence.

MARINE. Gale Warning into this evening for all zones. Through tonight, strong northwest flow will result in surface gusts to gale force before diminishing some later this evening from south to north. Some light freezing spray may develop tonight given the gusty winds and colder air temperatures, however since water temperatures are still on the relatively milder side kept any mention as chance for now.

Outlook .

Sunday . Northwest wind 15 to 20 knots with gusts of 25 to 30 knots.

Monday . No marine headlines are anticipated.

Tuesday . Northeast wind 15 to 20 knot with gusts around 25 knots.

Wednesday . North wind 10 to 15 knots with gusts around 20 knots. Waves on our ocean waters may remain around 5 feet.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Gale Warning until 10 PM EST this evening for ANZ430-431- 450>455.

Synopsis . Iovino Near Term . Gorse Short Term . Iovino Long Term . Iovino Aviation . Gorse/Iovino Marine . Gorse/Iovino

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
CPVM2	7 mi	46 min		32°F				11°F
TPLM2 - Thomas Point, MD	9 mi	64 min	WNW 19 G 23	30°F	40°F		1024.8 hPa (+3.0)	6°F
APAM2 - 8575512 - Annapolis, MD	11 mi	46 min		32°F			1023.2 hPa
TCBM2 - 8573364 - Tolchester Beach, MD	20 mi	64 min	NW 19 G 22	30°F	38°F		1023.9 hPa (+2.8)
FSKM2 - 8574728 - Francis Scott Key Bridge, MD	24 mi	46 min	NNW 18 G 21	30°F			1023.5 hPa
FSNM2	24 mi	58 min	NW 26 G 30	29°F			1022.8 hPa
BSLM2 - Chesapeake Bay, MD	25 mi	94 min	NNW 9.9	31°F			1024 hPa	11°F
44062 - Gooses Reef, MD	27 mi	40 min	NNW 21 G 25	32°F	41°F		1003.7 hPa
CA2 - 8571892 - Cambridge, MD	27 mi	46 min	NW 21 G 26	32°F	40°F		1022.8 hPa
BLTM2 - 8574680 - Baltimore, MD	28 mi	46 min	N 9.9 G 17	31°F	42°F		1023.4 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD	37 mi	118 min	NW 25 G 35	31°F			1023.7 hPa
WASD2 - 8594900 - Washington, DC	39 mi	46 min	N 11 G 19	31°F	40°F		1025.1 hPa
SLIM2 - 8577330 - Solomons Island, MD	43 mi	46 min	NNW 18 G 23	33°F	42°F		1023.3 hPa
CHCM2 - 8573927 - Chesapeake City, MD	48 mi	46 min			38°F

Wind History for Tolchester Beach, MD

(wind in knots)    EDIT      (on/off)   Help

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7 PM

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9 PM

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12 AM

1 AM

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3 AM

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-12 PM

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Last 24hr

NW10 G14

NW6

NW15

NW11

NW16 G20

NW15

NW13 G18

NW11 G14

NW8

W11 G14

W13 G19

W14 G17

W10 G13

NW15 G19

N14 G17

NW15

N18

NW16 G22

NW15

NW20

NW22 G29

NW18 G22

1 day ago

SW8

W4

W3

SW4

S3 G6

SE4

SW9

SW10

SW11

W11 G14

SW11

SW9

W10 G13

W6

W6

2 days ago

NW22 G28

NW19 G23

NW19 G28

NW22 G27

NW17

NW14 G17

NW12

NW11

N10

N13

N11

S5

S4 G7

S6

S8 G12

S8 G13

SW11 G14

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Bay Bridge Field, MD	4 mi	69 min	NW 15 G 24	10.00 mi	Mostly Cloudy	30°F	9°F	40%	1024 hPa
Annapolis, United States Naval Academy, MD	11 mi	70 min	NW 14 G 26	10.00 mi	A Few Clouds	32°F	10°F	40%	1024.1 hPa
Easton / Newman Field, MD	14 mi	69 min	WNW 20 G 28	10.00 mi	Partly Cloudy and Breezy	34°F	7°F	32%	1024.4 hPa

Link to 5 minute data for KW29

Wind History from W29 (wind in knots)

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Last 24hr

N8

NW10

NW11

NW10 G15

NW10 G15

NW12 G19

NW8

NW9 G15

NW10

NW7

NW5

W10

W8

NW8

NW9

NW12 G17

NW11 G17

NW13 G21

NW12 G18

NW11 G17

NW16 G26

NW18 G26

NW14 G27

N13 G24

1 day ago

SW11

SW7

SW4

W3

SE5

SE3

S5

SW5

Calm

W4

W5

W8

W9

W3

Calm

W4

W5

SW4

W3

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W7

W4

W3

NW6

2 days ago

NW17

NW16 G25

NW14 G22

NW18 G28

NW16 G24

NW14 G22

NW12

NW10 G15

NW5

NW5

N6

NE3

Calm

SE4

Calm

S3

S5

SE8

S7

S8

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S7

SW11

SW7 G15

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Tide / Current Tables for Kent Island Narrows, Maryland

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Tide / Current Tables for Baltimore Harbor Approach, Maryland Current

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Weather Map

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GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Ground Weather Radar Station

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