Page Links Change Location One Page Printer Page HELP Default setup SAVE setting RECALL saved setting

Marine Weather and Tides Shenandoah Farms, 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.

---

Sunrise 6:37AM

Sunset 6:10PM

Friday March 5, 2021 2:17 PM EST (19:17 UTC)

Moonrise 12:37AM

Moonset 10:36AM

Illumination 54%

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.

---

---

7 Day Forecast for Marine Location Near Shenandoah Farms, VA

   Hourly   EDIT   Help

---

Area Discussion for - Baltimore, MD/Washington

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KLWX 051451 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 951 AM EST Fri Mar 5 2021

SYNOPSIS. Strong Canadian high pressure over the Great Lakes will slowly build toward the region through the weekend before shifting into the Southeast early next week, before migrating offshore toward the middle of next week.

NEAR TERM /THROUGH TONIGHT/.

Strong high pressure remains over the Great Lakes while an upper level low retrogrades over eastern Canada. The combination of the two systems continues to induce a gusty northwesterly flow of 20 to 30 mph across the area. Albeit dry, cooler temperatures are expected today with low to mid 40s for most with upper 20s to low 30s across the higher terrain and valley areas.

Winds may diminish some tonight, but it will remain cold with lows in the 20s for most areas (teens in the mountains).

SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/.

PREVIOUS DISCUSSION . The low will remain over eastern Canada while the surface high does build a little closer to our region. A blustery northwest flow will bring more dry conditions along with sunshine, but it will remain chilly for this time of year.

The high will build overhead Saturday night through Sunday night, allowing for winds to diminish. However, it will remain chilly for this time of year.

LONG TERM /MONDAY THROUGH THURSDAY/. Large scale troughing will shift offshore on Monday, giving way to increasingly zonal flow aloft. High pressure will settle overhead within the zone of subsidence behind the departing trough, leading to mostly sunny skies and light winds. High temperatures on Monday will top out in the lower 50s for most.

The aforementioned large area of high pressure at the surface will slide offshore and become nearly stationary through the middle of the week. Meanwhile, a positively tilted trough will move into the western CONUS, and very slowly translate eastward throughout the week. This will result in a somewhat stagnant flow pattern across the CONUS, with a strong belt of southwesterly flow aloft stretching from the Desert Southwest to the Great Lakes. Several weak disturbances embedded within that southwesterly flow aloft will progress off to our northwest during the middle to latter portions of the week, but most of the forcing for ascent should be displaced off to our northwest. As a result, conditions are expected to stay mostly dry, but a few showers can't be ruled out (especially across northwestern portions of the forecast area) by Wednesday Night into Thursday as the troughing slowly progresses further to the south and east.

The main item of note in the long term portion of the forecast will be the well above normal temperatures. Persistent southerly surface flow on the backside of the offshore high/southwesterly flow aloft ahead of the positively tilted trough situated off to our northwest will transport an anomalously warm airmass into the region, and then maintain it through much of the week. Highs on Tuesday and Wednesday are expected to be in the 60s, with some lower 70s even possible by Thursday.

AVIATION /15Z FRIDAY THROUGH TUESDAY/. VFR conditions will persist through Sunday night. Gusty northwest winds around 20 to 30 knots are expected today. Winds may diminish some tonight, but gusty northwest winds around 15 to 25 knots are expected Saturday. Winds will diminish Saturday night through Sunday night as high pressure builds overhead.

VFR conditions and light winds are expected at the terminals on Monday and Tuesday.

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.

High pressure will build toward the waters Saturday night through Sunday night. Winds may still approach SCA criteria for portions of the waters (middle Bay and lower Tidal Potomac River) Saturday night into early Sunday, but winds should remain below SCA criteria for most o the time later Sunday and Sunday night.

Sub-SCA level winds are expected over the waters on both Monday and 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 . BJL/MSS NEAR TERM . BJL/MSS SHORT TERM . BJL LONG TERM . KJP AVIATION . BJL/KJP MARINE . BJL/KJP FIRE WEATHER .

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
WASD2 - 8594900 - Washington, DC	54 mi	48 min	NW 11 G 21	39°F	44°F		1018.2 hPa
BSLM2 - Chesapeake Bay, MD	71 mi	48 min	N 11	38°F			1017 hPa	9°F
BLTM2 - 8574680 - Baltimore, MD	78 mi	48 min	NNW 8.9 G 22	37°F	40°F		1016.4 hPa

Wind History for Washington, DC

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

3 PM

4 PM

5 PM

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

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

Last 24hr

NW11 G21

NW10 G19

NW11 G20

N10 G19

NW10 G20

NW11 G18

NW6 G17

NW9 G18

NW9 G14

NW8 G14

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

1 day ago

W8 G12

SW4 G7

SW3 G6

SW3

--

SE3

SE2

--

SE1

SE1

S2

--

--

NW1

NW4

NW4 G7

NW4

NW5 G10

NW5 G13

NW8 G15

NW16 G21

NW11 G16

NW12 G19

NW11 G22

2 days ago

NW4 G13

N4

NW3

--

SE3

S3

SW4

SE4

SE4

S7

S5 G8

SW4

SW2

S2

SW3

SW3

SW3

S4 G7

S3

S1

NW9 G12

W10 G13

W8 G11

W3 G9

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Winchester Regional, VA	12 mi	23 min	W 17 G 25	10.00 mi	Fair	37°F	16°F	41%	1016.9 hPa
Leesburg / Godfrey, VA	24 mi	23 min	WNW 20 G 29	10.00 mi	Fair and Breezy	39°F	16°F	39%	1017.9 hPa

Link to 5 minute data for KOKV

Wind History from OKV (wind in knots)

3 PM

4 PM

5 PM

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

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

Last 24hr

NW13 G22

NW17 G26

NW20 G27

NW14 G19

NW14 G27

NW10 G23

NW11 G19

NW7 G14

NW15 G22

NW12 G19

N8 G17

NW10

NW7

NW4

NW9

NW10 G15

NW9 G17

NW10 G16

NW16 G22

NW11 G18

NW15 G20

NW9 G22

NW17 G22

W16 G24

1 day ago

W10 G16

W6

NW8

NW9

NW5

NW3

W4

Calm

Calm

S4

SW6

W4

NW7

W4

NW5

NW7

NW4

NW6

NW9

NW9

NW12 G19

NW12 G19

NW15 G22

NW17 G28

2 days ago

NW9

NW6

NW6

NE3

E3

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

W4

SW3

Calm

Calm

SW5

SW4

W5 G16

W8

W5

SW9

---

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

   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data

---

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

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map

       (on/off)   Help Weather Map

---

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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East

---

Ground Weather Radar Station

---

Please read website Cookie, Privacy, and Disclamers by clicking HERE.

---