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Marine Weather and Tides Severna Park, 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 7:20AM

Sunset 5:13PM

Tuesday January 19, 2021 12:49 PM EST (17:49 UTC)

Moonrise 11:11AM

Moonset 11:54PM

Illumination 38%

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 Severna Park, MD

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Area Discussion for - Baltimore, MD/Washington

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FXUS61 KLWX 191545 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1045 AM EST Tue Jan 19 2021

SYNOPSIS. High pressure will continue to build over the southeastern United States this afternoon. A low pressure system sliding through the Great Lakes region into the northeast will bring a cold front through the region late tonight into Wednesday morning. An upper level disturbance will swing through on Wednesday. A cold front will cross the area Thursday night, before high pressure builds back in from the northwest through the weekend.

NEAR TERM /THROUGH WEDNESDAY/. A potent upper shortwave will dive southeastward into our region tonight for an upslope snow threat. Stratocumulus deck overspread most of the region west of the I-95 corridor. Clouds will likely clear out this afternoon as dry air advection takes hold at the mid- levels. Think that clouds stay put over the mountains though, where some light upslope snow is occurring and will persist into the afternoon. High temperatures will be above average, reaching into the mid 40s to low 50s at the lower elevations. Atop the highest ridges out west through, temperatures stay below freezing. Snowfall amounts throughout the day this afternoon will amount to an inch or less for the Allgheny Front.

For tonight, a much different story. The aforementioned upper shortwave over the northern Plains will swing through the region overnight into Wednesday morning. This will amplify the upslope snow showers along/west of the Allegheny Front. Most of this activity falls in the morning hours on Wednesday, but snow showers will continue into the afternoon as well. Accumulations of 2 to 4 inches are expected, which resulted in the issuance of a Winter Weather Advisory for Garrett County in western MD, and western Grant and Pendleton counties in eastern WV.

Outside of the mountains though, there is the slight chance that we get some snow showers in northern VA and north-central MD along the Mason-Dixon line. Perhaps could even get a few flurries or a snow shower as far south as DC. Best timing for this would be mid-morning into early afternoon. There will be a lot of dry air around though, so may be tough to get much to the ground that far south. Don't see much being able to stick either, given that surface temperatures will be in the mid 30s, and recent days have been above average. Snow is not the only threat Wednesday though, as it will be quite windy during the first half of the day. Wind gusts really pick up after sunrise, with wind gusts up to 40 mph possible through sunset. With high temperatures only in the mid 30s to low 40s, this will keep wind chills into the mid 20s to low 30s for the non-mountainous regions. For the mountains, wind chills will reach the single digits, and may even drop below 0.

Winds should diminish by later in the evening as gradients decrease. By the overnight hours, lows will dip into the low to mid 20s in most areas, with low to mid teens expected across the mountains.

SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/. Quiet weather returns for Thursday. High pressure to the south will be slowly trying to push offshore, bringing temperatures back up into the mid 40s. Meanwhile, a frontal boundary will be approaching from the northwest. This boundary has very little in the way of an air mass change to come along with it, and will have no moisture either. So other than a push of gusty winds during the afternoon, not much to speak of with this system. Low temperatures Thursday night dip into the 20s and low 30s.

LONG TERM /FRIDAY THROUGH MONDAY/. A nearly zonal flow aloft is expected Friday through Sunday while a couple closed upper-level low pressure systems remain over southern and eastern Canada. The confluence zone between the upper- level lows will allow for high pressure to build from Canada and the northern Plains toward over our area.

With the high approaching for Friday and Saturday it will turn out blustery. The cold advection will be offset by sunshine and a downsloping flow Friday, so max temps may be near or even a little above climo. However, stronger cold advection will cause chilly conditions for Friday night and Saturday.

Winds will diminish for Saturday night and Sunday as the high builds overhead, but it will remain chilly.

Low pressure (with Pacific origin) may impact the area early next week, bringing the chance for rain or snow. Details are highly uncertain this far out, but with Canadian air in place combined with the potential for significant moisture getting drawn into the system from the Pacific and Gulf of Mexico, this will have to be monitored over the next several days.

AVIATION /16Z TUESDAY THROUGH SATURDAY/. VFR conditions are expected through Saturday at all terminals. The main concern will be gusty winds this afternoon and Wednesday. Winds W to WSW, potentially gusting up to 20-25 knots. Gusts quickly drop off after sunset though, as mixing decreases. For Wednesday, WNW flow returns, with winds gusting closer to 25 to 35 knots at times. Again, this will taper off late afternoon/early evening. Other than that, there is the chance for a snow shower at MRB Wednesday morning or early afternoon. Perhaps could even see flurries or a snow shower at IAD, DCA, BWI, or MTN during the same timeframe, but chances are even less. Impacts should be minimal though, as accumulating snow should stay well to the west of all terminals.

VFR conditions are most likely for Thursday through Saturday, but gusty northwest winds are possible. The strongest winds are most likely Saturday with 20 to 30 knot gusts possible.

MARINE. Winds will pick up this afternoon to result in a Small Craft Advisory, as gusty winds aloft should be able to be mixed down to the surface. Winds will diminish rather quickly into the evening hours, so the SCA only runs until just after sunset, when mixing will be cut off.

For Wednesday, gusty northwest winds are expected and a Small Craft Advisory is in effect for the waters. A Gale Warning may be needed for portions of the waters during this time. However, confidence for Gale Force winds were not high enough at this time for a warning, since there is some uncertainty as to exactly how high the mixing layer will be, and consequently whether there will be 35 kt at the top of the mixing layer vs winds around 30 kt. Winds will diminish Wednesday night as high pressure builds overhead, but an SCA will likely be needed for portions of the waters, especially Wednesday evening.

For Thursday, Small Craft Advisories again possible, especially over the lower Bay and lower tidal Potomac. This in response to an approaching frontal boundary.

High pressure will approach the waters for Friday through Saturday night, and a Small Craft Advisory will likely be needed for portions of the waters during this time.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . Winter Weather Advisory from 1 AM to 1 PM EST Wednesday for MDZ001. VA . None. WV . Winter Weather Advisory from 1 AM to 1 PM EST Wednesday for WVZ501-505. MARINE . Small Craft Advisory until 6 PM EST this evening for ANZ530>533-535-536-538>542. Small Craft Advisory from 5 AM to 6 PM EST Wednesday for ANZ531>534-537-539>541-543. Small Craft Advisory from 8 AM to 6 PM EST Wednesday for ANZ530-535-536-538-542.

SYNOPSIS . CJL NEAR TERM . KLW/CJL SHORT TERM . CJL LONG TERM . BJL AVIATION . BJL/KLW MARINE . BJL/KLW

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
APAM2 - 8575512 - Annapolis, MD	8 mi	49 min	SSW 8.9 G 15
CPVM2	11 mi	61 min		42°F				31°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD	11 mi	49 min	WSW 11 G 16
FSNM2	11 mi	49 min	WSW 9.9 G 15
BLTM2 - 8574680 - Baltimore, MD	14 mi	49 min	WSW 6 G 9.9
TPLM2 - Thomas Point, MD	14 mi	49 min	SSE 11 G 11	41°F	41°F		1021.3 hPa (-1.6)	31°F
TCBM2 - 8573364 - Tolchester Beach, MD	20 mi	49 min	SW 8.9 G 9.9
BSLM2 - Chesapeake Bay, MD	21 mi	79 min	SW 8	46°F			1020 hPa	26°F
WASD2 - 8594900 - Washington, DC	28 mi	49 min	SW 8 G 13
44062 - Gooses Reef, MD	36 mi	43 min	W 14 G 14	44°F	41°F
CA2 - 8571892 - Cambridge, MD	43 mi	49 min	SSW 9.9 G 14
COVM2 - 8577018 - Cove Point LNG Pier, MD	47 mi	49 min	WSW 16 G 21

Wind History for Francis Scott Key Bridge NE Tower, MD

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

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Last 24hr

W23

W22 G29

NW20

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W14

W10 G13

W12 G16

W12 G15

W12 G16

W15 G20

W17 G22

SW12 G15

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SW11 G15

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SW13 G16

SW7 G11

SW5 G9

SW5 G12

SW5 G11

SW3 G7

SW10 G15

1 day ago

W17 G21

SW12 G18

SW8 G11

SW7 G10

SW4 G9

SW4 G9

SW5 G10

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SW3 G7

SW5 G10

SW8 G14

SW10 G14

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SW11 G15

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W21 G26

W18 G25

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W11 G14

W13 G16

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W14 G18

W14 G17

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W15 G21

W16 G20

W16 G22

W13 G17

SW16

SW12 G17

SW12 G16

SW8 G12

SW12 G17

SW7 G11

SW10 G18

SW11 G16

SW7 G13

SW9 G15

SW11 G15

SW5 G10

W16 G21

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Annapolis, United States Naval Academy, MD	8 mi	55 min	SW 7	10.00 mi	Partly Cloudy	46°F	24°F	42%	1020.7 hPa
Baltimore, Baltimore-Washington International Airport, MD	10 mi	55 min	SW 5 G 15	10.00 mi	Mostly Cloudy	44°F	22°F	41%	1020.1 hPa
Fort Meade / Tipton, MD	11 mi	54 min	SW 11 G 18	10.00 mi	Partly Cloudy	45°F	28°F	53%	1021 hPa
Bay Bridge Field, MD	14 mi	54 min	SSW 9 G 16	10.00 mi	Mostly Cloudy	45°F	23°F	43%	1020.7 hPa
Baltimore / Martin, MD	20 mi	55 min	SW 8	10.00 mi	Mostly Cloudy	43°F	27°F	53%	1021 hPa
College Park Airport, MD	20 mi	54 min	WSW 5 G 14	10.00 mi	Partly Cloudy	45°F	20°F	37%	1020.3 hPa
Camp Springs / Andrews Air Force Base, MD	23 mi	53 min	SW 13	10.00 mi	A Few Clouds	47°F	24°F	40%	1021.1 hPa

Link to 5 minute data for KNAK

Wind History from NAK (wind in knots)

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Last 24hr

NW14 G22

W11 G23

NW10 G17

W16 G26

W8 G19

W7 G17

W8 G18

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W4

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W3

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Calm

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1 day ago

W9 G18

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W7 G14

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W6

W10 G22

W11 G18

2 days ago

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W9 G17

W10 G22

W7 G16

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SW8 G14

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SW9 G20

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Tide / Current Tables for Brewer Point, 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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