Friday, September24, 2021
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Marine Weather and Tides
Montross, VA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 6:56AMSunset 7:02PM Friday September 24, 2021 2:39 AM EDT (06:39 UTC) Moonrise 8:04PMMoonset 9:21AM Illumination 92% Phase: Waning Gibbous; Moon at 18 days in cycle
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.
Marine Forecasts
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ANZ537 Tidal Potomac From Cobb Island To Smith Point- 135 Am Edt Fri Sep 24 2021
.small craft advisory in effect until 4 am edt early this morning...
Overnight..N winds 15 kt with gusts to 20 kt. Waves 2 ft.
Fri..N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Fri night..N winds 5 to 10 kt. Waves 1 ft.
Sat..NW winds 5 kt. Waves less than 1 ft.
Sat night..W winds 5 to 10 kt. Waves 1 ft or less.
Sun..NW winds 5 to 10 kt. Waves 1 ft.
Sun night..W winds 5 to 10 kt. Waves 1 ft.
Mon..W winds 5 to 10 kt. Waves 1 ft.
Tue..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night.
ANZ500 135 Am Edt Fri Sep 24 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A strong cold front has exited the region with high pressure gradually building in from the west. High pressure will remain in control for the weekend. However a weak cold front may cross the region Saturday night where small craft advisories may be required for portions of the waters. An additional cold front moves through late Tuesday.


7 Day Forecast for Marine Location Near Montross, VA
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location: 38.1, -76.73     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 240619 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 219 AM EDT Fri Sep 24 2021

SYNOPSIS. A cold front will gradually push off the coast early this evening. Cool high pressure builds in from the west Friday into Saturday. A dry cold front crosses the area Saturday night, with high pressure returning Sunday and Monday.

NEAR TERM /THROUGH TODAY/. As of 1005 PM EDT Thursday .

The latest analysis indicates strong sfc low pressure occluded over Lake Huron, with a sfc cold front now located just off the immediate coast and expected to gradually move east overnight. Meanwhile, a post-frontal boundary is nearly stationary in eastern Virginia and marks the edge of the cloud shield. Temps as of 1000 PM ranged from the mid 50s NW to the upper 60s SE.

Clouds and some light showers/drizzle will linger into the evening near the coast and across the Eastern Shore through tonight, but otherwise clear and cool conditions will prevail inland. Post- frontal CAA brings cool lows in the mid-upper 40s/near 50F in the Piedmont under a clear sky. It will remain much warmer closer to the coast due to clouds and better mixing, with lows generally 60-65F.

Mostly sunny Fri other than some morning clouds near the coast (as the front and a trough of low pressure lingers offshore). A northerly wind of 5-10 mph is expected inland, with 10-15 mph at the coast. Highs will be mainly in the mid 70s CWA- wide as sfc high pressure expand NE into the local area from the Tn Valley.

SHORT TERM /TONIGHT THROUGH SUNDAY/. As of 330 PM EDT Thursday .

Clear/cool Fri night as sfc high pressure settles over the local area. Have continued to go on cool side of guidance for most areas given a dry airmass and sfc high pressure over the region. Expect lows in the mid/upper 40s to lower 50s across the inland 2/3 of the CWA (low- mid 50s urban areas). Near the coast lows will be 55-60F. Mostly sunny and pleasant Sat with highs in the mid to upper 70s. A bit more in the way of clouds as the next shortwave aloft moves across at least northern sections of the CWA Sat night. Lows mainly in the 50s. This pushes a reinforcing but dry cold front through the area by Sun morning. Mostly sunny on Sunday with highs in the mid to upper 70s

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. As of 300 PM EDT Thursday .

The extended continues to look fairly quiet and seasonable. Early next week, the models are in good agreement in showing a trough across the east and ridging to the west. By the end of the week, the pattern across North America becomes very blocky with a 2-3 sigma ridge extending northward into central Canada and a upper low over/near the east coast. Exact placement of this upper low will be critical in the precip and temperature forecast for Thu/Friday. The 12z GFS is significantly different from the previous run and shows the upper low moving southward along the east coast. Meanwhile, the ECMWF shows the upper low further west and becoming cut off from the main flow over the Ohio Valley by the end of the week. With all of this said, will continue with the warmest temps of the week on Tuesday and Wednesday ahead of a weak cold front. Lower to mid 80s expected. Temperature forecast becomes a little more problematic for Thu depending on the exact placement of the upper low. Will cool off temps back to mid-upper 70s for now, but I could certainly see cooler temps if the upper low is further east. Overall most of the area will stay dry next week, although there is a small chance for rain ahead of a weak cold front Tue night.

AVIATION /06Z FRIDAY THROUGH TUESDAY/. As of 125 AM EDT Friday .

VFR flying weather will largely prevail through the period but occasional MVFR/IFR CIGs are possible near the coastal terminals this morning. Will handle these restrictions with TEMPO groups at PHF, SBY, and ORF. Guidance is a bit more bullish on a few hour period of prevailing MVFR this morning at ECG. Conditions continue to improve today with VFR prevailing at all terminals after mid-morning. Winds within a few degrees of northerly through the period, generally 5-10 kt but closer to 10 kt with gusts nearing 20 kt for ORF and ECG into this afternoon.

Outlook: Dry with VFR conditions are to persist over the weekend and through Mon/Tue as high pressure builds into the area and then slides offshore.

MARINE. As of 1015 PM EDT Thursday .

Cold front now E of the local waters. N surge/low level CAA expected into this afternoon/early this evening then wanes. Winds increase to 15-25 kt over the bay/sound/ocean and SCAs to remain in place (though extended into/through this evening for the ocean waters as seas are slow to lower BLO 5 ft). Sub-SCA conditions are expected from tonight through at least Sat evening as sfc hi pres builds into the mid-Atlantic region. A brief uptick in NW winds (to near 15 kt) (late) Sat night-Sun morning as a second cold front crosses the local waters. Sub-SCA conditions are expected early next week. Seas will diminish to 3-4 ft Saturday and 2-3 ft Sunday into next week.

A moderate rip current risk today.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . Small Craft Advisory until 1 PM EDT this afternoon for ANZ632- 634-650-652-654. Small Craft Advisory until 4 PM EDT this afternoon for ANZ633- 656-658. Small Craft Advisory until 10 AM EDT this morning for ANZ630- 631.

SYNOPSIS . LKB NEAR TERM . LKB/RMM SHORT TERM . LKB/MAM LONG TERM . MRD AVIATION . RHR MARINE . ALB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTM2 - 8578240 - Piney Point, MD 11 mi51 min NNE 7 G 8
LWTV2 - 8635750 - Lewisetta, VA 16 mi51 min NNE 8 G 11 67°F 76°F1016 hPa
44042 - Potomac, MD 21 mi39 min NNW 9.7 G 12 64°F 77°F1 ft
SLIM2 - 8577330 - Solomons Island, MD 21 mi51 min NNW 2.9 G 6 63°F 77°F1015.8 hPa
NCDV2 22 mi57 min Calm G 1 60°F 78°F1015.6 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 28 mi51 min NW 8.9 G 19 68°F 1015.9 hPa
44062 - Gooses Reef, MD 36 mi39 min N 14 G 21 66°F 76°F1 ft1017 hPa (+0.2)
BISM2 - 8571421 - Bishops Head, MD 38 mi57 min N 7 G 9.9 65°F 73°F1015.8 hPa
44058 - Stingray Point, VA 45 mi39 min NNW 18 G 21 67°F 1016.2 hPa (+0.0)
BSLM2 - Chesapeake Bay, MD 47 mi69 min Calm 54°F 1016 hPa54°F
YRSV2 - Chesapeake Bay,VA 47 mi69 min N 1.9 64°F 1016 hPa59°F
CA2 - 8571892 - Cambridge, MD 48 mi57 min N 7 G 9.9 66°F 75°F1015.8 hPa

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD16 mi46 minN 010.00 miFair64°F52°F65%1015.6 hPa
St Marys County Airport, MD18 mi44 minN 010.00 miPartly Cloudy54°F50°F88%1016.6 hPa
Tappahannock-Essex County Airport, VA19 mi44 minN 010.00 miFair54°F54°F100%1016.6 hPa
Patuxent River, Naval Air Station, MD22 mi47 minNW 710.00 miFair63°F53°F70%1015.9 hPa

Link to 5 minute data for KNUI

Wind History from NUI (wind in knots)
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W6CalmCalmCalmNE344E5E4CalmCalmCalmCalm44CalmCalm
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Tide / Current Tables for Mount Holly, Nomini Creek, Virginia
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Mount Holly
Click for Map
Fri -- 12:05 AM EDT     0.21 feet Low Tide
Fri -- 05:59 AM EDT     1.65 feet High Tide
Fri -- 06:56 AM EDT     Sunrise
Fri -- 10:21 AM EDT     Moonset
Fri -- 11:58 AM EDT     0.20 feet Low Tide
Fri -- 06:12 PM EDT     1.80 feet High Tide
Fri -- 07:00 PM EDT     Sunset
Fri -- 09:04 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.30.611.31.61.71.51.20.80.50.30.20.30.611.41.71.81.71.41.10.80.5

Tide / Current Tables 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

Fri -- 12:31 AM EDT     0.00 knots Slack
Fri -- 02:08 AM EDT     0.36 knots Max Flood
Fri -- 04:20 AM EDT     -0.00 knots Slack
Fri -- 06:55 AM EDT     Sunrise
Fri -- 08:09 AM EDT     -0.70 knots Max Ebb
Fri -- 10:20 AM EDT     Moonset
Fri -- 11:55 AM EDT     0.00 knots Slack
Fri -- 02:18 PM EDT     0.57 knots Max Flood
Fri -- 05:08 PM EDT     -0.00 knots Slack
Fri -- 06:59 PM EDT     Sunset
Fri -- 09:02 PM EDT     Moonrise
Fri -- 09:03 PM EDT     -0.83 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.20.20.40.30.1-0.2-0.4-0.6-0.7-0.7-0.5-0.300.40.60.50.30-0.3-0.6-0.8-0.8-0.8-0.6

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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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