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Marine Weather and Tides George Mason, VA Version 3.4

NOTICE 1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

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Sunrise 6:32AM

Sunset 6:08PM

Saturday March 6, 2021 12:30 AM EST (05:30 UTC)

Moonrise 1:45AM

Moonset 11:20AM

Illumination 50%

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 George Mason, VA

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Area Discussion for - Baltimore, MD/Washington

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FXUS61 KLWX 060159 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 859 PM EST Fri Mar 5 2021

SYNOPSIS. Strong Canadian high pressure over the Great Lakes will slowly migrate over the region through the weekend before becoming more concentrated over the Mid Atlantic by early next week. Dry and near seasonable temperatures are expected through the weekend before a warming trend ensues by the middle of next week as the high shifts offshore.

NEAR TERM /THROUGH SATURDAY/.

The gusty northwesterly winds have tapered off this evening with a steady 7 to 10 knot wind out of the northwest expected to continue through the overnight periods.

.Previous Discussion.

Mostly clear skies and gusty northwest winds persist this afternoon with wind gusts ranging between 20 to 30 mph across the region. Albeit dry, cooler temperatures today compared to yesterday with highs in the low 40s across the metros, upper 30s over northern MD/ central VA, and upper 20s across the higher terrain. Winds will diminish some early this evening into the overnight hours.

SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY NIGHT/. A large upper level low continues to retrograde over the Canadian Maritimes through Saturday which will keep the surface high over the Great Lakes in place throughout most of the weekend. A cold and gusty NW flow continues through Saturday as a result of the tight gradient. The low will slowly begin to exit off into the North Atlantic Sunday which will allow the high to begin migrating southward over the CWA through early next week. Temperatures will remain just below normal for this time of year through the weekend with cold overnight lows in the 20s and daytime highs in the 40s for most with low 30s across the mountains. A warming trend is expected as we head into the middle of next week.

LONG TERM /MONDAY THROUGH FRIDAY/. The broad trough will move offshore Monday afternoon as a region of surface high pressure builds behind the trough. Staying dry Tuesday into Wednesday as upper-level quasi-zonal flow becomes more southwesterly and the surface high pressure moves off the coast of the Carolina's. High temperatures climb into the low 60s Tuesday and mid-upper 60s Wednesday. By Thursday, H5 heights could approach 575 dm and 850 temps close to 10 C. At the surface, this translates to high temperatures near 70 degrees on Thursday.

Embedded disturbances in the upper-level flow likely stay north of the FA through Wednesday. The opportunity for rain showers returns Wednesday night into Thursday, though some guidance keeps us dry into Thursday night.

AVIATION /02Z SATURDAY THROUGH WEDNESDAY/. VFR conditions are expected to continue through the weekend with high pressure in control. Gusty NW winds around 20-30 kts will continue this afternoon but are expected to diminish some this evening into the overnight hours. Similar conditions are expected Saturday with lesser wind gusts expected Sunday into Monday. VFR conditions and light winds are likely Monday into Tuesday as high pressure builds nearby.

MARINE. Low pressure over eastern Canada and high pressure over the Great Lakes will allow for gusty northwest winds over the waters through Saturday. An SCA is in effect for all of the waters through this evening. The SCA remains in effect overnight for the lower Tidal Potomac River and middle portion of the Bay, before picking back up for all of the waters Saturday. As winds subside going into Sunday chances for additional SCA diminish but may be required at least for portions of the waters late this weekend. Winds likely remain sub-SCA criteria Monday into Tuesday.

FIRE WEATHER. Dry weather will persist through Saturday and the RH values will be low each day (teens and 20s today, and teens/20s over central VA Saturday with 20s and 30s across the rest of the area Saturday). Gusty northwest winds are expected during this time as well, with frequent gusts around 20 to 30 mph for most areas today and 15 to 25 mph for Saturday. As fuels continue to dry out over the next few days, the meteorological conditions may enhance the threat for the spread of wildfires.

Confidence is too low at this time for any headlines since the soils are likely holding onto some moisture due to recent rain and snowmelt, and it will remain chilly as well.

Dry conditions with low humidity will likely continue for Sunday and Monday, but winds should be less due to high pressure building overhead.

Warmer conditions are expected for the middle portion of next week, but there will likely be more atmospheric moisture.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory until 6 PM EST Saturday for ANZ531>534- 537-539>541-543. Small Craft Advisory until midnight EST tonight for ANZ530-535- 536-538-542. Small Craft Advisory from 8 AM to 6 PM EST Saturday for ANZ530- 535-536-538-542.

SYNOPSIS . MSS NEAR TERM . MSS/JMG SHORT TERM . MSS LONG TERM . CPB AVIATION . MSS/CPB MARINE . MSS/CPB FIRE WEATHER .

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
WASD2 - 8594900 - Washington, DC	15 mi	43 min	NW 6 G 11	38°F	43°F		1020.2 hPa
BSLM2 - Chesapeake Bay, MD	32 mi	61 min	N 4.1	34°F			1019 hPa	16°F
NCDV2	39 mi	43 min	NW 5.1 G 11	37°F	42°F		1019.3 hPa
APAM2 - 8575512 - Annapolis, MD	45 mi	43 min	W 7 G 13	35°F	41°F		1018.9 hPa
TPLM2 - Thomas Point, MD	46 mi	31 min	WNW 11 G 12	35°F	39°F		1020.4 hPa (+1.8)	14°F
BLTM2 - 8574680 - Baltimore, MD	48 mi	43 min	N 12 G 23	36°F	40°F		1019 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD	49 mi	43 min	NW 18 G 20	36°F			1019.2 hPa
FSNM2	49 mi	43 min	NW 29 G 33	35°F			1018.4 hPa

Wind History for Washington, DC

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

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

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Last 24hr

NW8 G17

NW10 G13

NW7 G13

NW10 G17

NW8 G14

NW8 G12

NW10 G17

NW12 G20

NW11 G17

NW13 G16

NW11 G18

NW13 G16

NW12 G18

NW13 G18

NW11 G19

NW13 G19

NW9 G20

NW10 G14

NW7 G11

NW2 G5

NW1

NW3

NW4 G7

NW7 G12

1 day ago

S2

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NW1

NW4

NW4 G7

NW4

NW5 G10

NW5 G13

NW8 G15

NW16 G21

NW11 G16

NW12 G19

NW11 G22

NW11 G21

NW10 G19

NW11 G20

N10 G19

NW10 G20

NW11 G18

NW6 G17

NW9 G18

NW9 G14

NW8 G14

2 days ago

SW3

SW3

SW3

S4 G7

S3

S1

NW9 G12

W10 G13

W8 G11

W3 G9

W8 G12

SW4 G7

SW3 G6

SW3

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SE3

SE2

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SE1

SE1

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Fort Belvoir, VA	10 mi	35 min	WNW 14 G 22	10.00 mi	Fair	37°F	9°F	30%	1020.3 hPa
Washington/Dulles International Airport, DC, VA	11 mi	39 min	NW 16	10.00 mi	Fair	35°F	12°F	38%	1020.3 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA	14 mi	35 min	N 6	10.00 mi	Fair	35°F	12°F	38%	1021.7 hPa
Washington/Reagan National Airport, DC, VA	14 mi	39 min	NW 13 G 19	10.00 mi	Fair	37°F	13°F	37%	1020.2 hPa
Leesburg / Godfrey, VA	22 mi	36 min	NNW 14 G 25	10.00 mi	Fair	34°F	14°F	44%	1020.7 hPa
College Park Airport, MD	22 mi	36 min	NW 10 G 19	10.00 mi	Fair	35°F	8°F	32%	1020 hPa
Camp Springs / Andrews Air Force Base, MD	23 mi	35 min	NNW 12 G 17	10.00 mi	Fair	35°F	12°F	38%	1020.2 hPa
Quantico Marine Corps Airfield - Turner Field, VA	23 mi	35 min	NW 10	10.00 mi	Fair	37°F	13°F	37%	1021.1 hPa
Gaithersburg - Montgomery County Airport, MD	24 mi	35 min	NW 9 G 15	10.00 mi	Fair	32°F	13°F	45%	1021.7 hPa

Link to 5 minute data for KDAA

Wind History from DAA (wind in knots)

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Last 24hr

N6

NW4

NW8 G15

NW8 G15

W9

NW10

NW10

NW13 G19

NW13

W11 G21

NW17 G23

NW14 G17

NW13 G24

NW19

NW18 G22

NW14 G24

NW20 G26

W10 G15

W6

Calm

Calm

W6

W10 G19

NW14 G22

1 day ago

Calm

Calm

NW3

Calm

NW3

NW3

NW5

NW6

NW8

NW9 G18

NW13 G27

NW14 G23

NW16 G21

NW15 G20

NW19 G23

NW21 G26

NW14 G22

NW11 G22

NW11 G19

NW8

NW13 G20

NW9 G21

NW16 G20

NW11 G19

2 days ago

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

NW13

W7

W7

W6

W6

SW3

SW6

S3

Calm

Calm

Calm

Calm

Calm

Calm

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Tide / Current Tables for Chain Bridge, one mile below, D.C.

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Tide / Current Tables for Chain Bridge, D.C.

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Weather Map

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GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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