Monday, October18, 2021
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Marine Weather and Tides
Cobb Island, MD

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 7:19AMSunset 6:26PM Monday October 18, 2021 4:37 PM EDT (20:37 UTC) Moonrise 4:51PMMoonset 4:09AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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 Pm Edt Mon Oct 18 2021
.small craft advisory in effect through Tuesday afternoon...
This afternoon..NW winds 20 kt with gusts to 30 kt. Waves 3 ft.
Tonight..NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Tue..NW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 1 to 2 ft.
Tue night..W winds 5 to 10 kt. Waves 1 ft.
Wed..W winds 5 to 10 kt. Waves 1 ft.
Wed night..SW winds 5 to 10 kt. Waves 1 ft.
Thu..SW winds 10 to 15 kt. Waves 1 ft.
Fri..NW winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night.
ANZ500 135 Pm Edt Mon Oct 18 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build overhead through the middle portion of the week before a cold front approaches for late in the week. Small craft advisories may be necessary Thursday.


7 Day Forecast for Marine Location Near Cobb Island, MD
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location: 38.22, -76.75     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 181950 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 350 PM EDT Mon Oct 18 2021

SYNOPSIS. High pressure builds into the local area through midweek, bringing more seasonable temperatures and dry conditions. A cold front crosses the region late this week or the first part of the weekend.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. As of 200 PM EDT Monday .

Despite being a bit breezy this afternoon . pleasant Fall wx across the local area. NW winds remain gusty to 20-30 mph into early evening then wane (lastly at the coast) for the overnight hours. SCT CU mainly INVOF the ern shore will be dissipating w/ the loss of heating this evening. Another chilly night as sfc hi pres nudges closer to the local area from the W. Lows 40-45F Central/W (locally colder spots may have readings down into the u30s) . m40s-l50s towards the coast.

SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/. As of 200 PM EDT Monday .

A dry wx period w/ a warming trend through mid week as sfc hi pres (initially just SSW of the local area Tue) slides to off the SE CONUS coast Wed-Thu. Primarily WSW winds Tue begin the warmup . then SW flow Wed-Thu return temperatures to (well) above normal In a quickening zonal flow. a cold front will be approaching from the W late Thu. Mainly SKC through the period.

Highs Tue mainly in the l-m70s. Lows Tue night from the m-u40s inland to the m50s at the coast. Highs Wed mainly in the m-u70s. Lows Wed night in the u40s-l50s inland to the m-u50s at the coast. Highs Thu mainly in the u70s-l80s.

LONG TERM /THURSDAY NIGHT THROUGH MONDAY/. As of 210 PM EDT Monday .

The cold front mentioned in the short term period crosses the local area late week. Some differences remain w/ the frontal passage which will make for challenges WRT temperatures/pcpn chcs. 12Z/18 GFS remains slower than the 00Z/18 ECMWF by Fri into Sat. Have gone w/ a blended solution which puts the highest PoPs (20-40%) Fri-Fri night then end mainly Sat morning. Sharping of the trough aloft through the NE/mid-Atlantic states Sat-Sun expected to lead to cooler/dry wx (esp late Sat-Sun). Models hinting at a psbl quick moving system potentially leading to increased clouds and pcpn chcs Mon Again. leaded towards the blended guidance WRT that second system early next week.

Lows Thu night from the u50s-m60s. Highs Fri in the l-m70s N to the m-u70s S. Lows Fri night in the l-m50s N and W to the u50s- around 60F SE. Highs Sat in the u60s-around 70F N to the l70s S. Lows Sat night in the m-u40s Central/W to the l-m50s towards the coast. Highs Sun/Mon in the m-u60s.

AVIATION /20Z MONDAY THROUGH SATURDAY/. As of 1250 PM EDT Monday .

VFR conditions are expected through the 18Z/18 TAF period. SCT CU . mainly at SBY through early this evening then dissipating. NW winds to remain gusty to 20-25 kt this afternoon then waning for tonight. VFR conditions persist Tue through Thu. Next chance for sub-VFR conditions SHRA chcs comes w/ the crossing of the next cold front late week (Fri into early Sat).

MARINE. As of 350 PM EDT Monday .

Current wx analysis depicts high pressure centered over the TN Valley and low pressure in far E Canada. The pressure gradient between the two systems is allowing for NW winds 15-25 kt with gusts up to 30 kt across the northern waters. Winds will subside this evening across the southern coastal waters before a second push overnight increases winds back to 15-20 kt with gusts to around 25 kt across the Ches Bay, Lower James, and coastal waters. Have therefore extended the SCAs for the rivers and Currituck Sound until 7 PM, for the Lower James and coastal waters until 4 AM, and for the Ches Bay until 7 AM. Waves and seas are 2-4 ft and 3-5 ft respectively. Expect waves to subside to 2-3 ft by Tues morning and 1-2 ft by Tues afternoon. Expect seas to subside to 2-4 ft late tonight into Tues.

High pressure will continue to build into the area and center over the SE Tues into Wed before moving off the SE coast Thurs. Meanwhile, an area of low pressure will track from the Great Lakes into SE Canada Thurs with a trailing cold front approaching the area Fri. Given high pressure near/over the local area through Wed, expect sub-SCA conditions to prevail. SW winds ramp up Thurs/Thurs night ahead of the approaching cold front with low-end SCA conditions possible. There will also be the potential for SCA conditions for the northern coastal waters Thurs night due to 5 ft seas.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . Small Craft Advisory until 7 PM EDT this evening for ANZ633- 635>637. Small Craft Advisory until 7 AM EDT Tuesday for ANZ630>632-634. Small Craft Advisory until 4 AM EDT Tuesday for ANZ638-650-652- 654-656-658.

SYNOPSIS . ERI/MAM NEAR TERM . ALB SHORT TERM . ALB LONG TERM . ALB AVIATION . ALB MARINE . RMM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTM2 - 8578240 - Piney Point, MD 13 mi49 min NW 14G15
NCDV2 17 mi49 min NW 5.1G9.9 70°F 67°F1013.2 hPa
SLIM2 - 8577330 - Solomons Island, MD 17 mi49 min W 9.9G18 67°F 71°F1013.6 hPa
LWTV2 - 8635750 - Lewisetta, VA 22 mi49 min NW 9.9G14 66°F 67°F1014.2 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 23 mi49 min W 14G20 66°F 1013.7 hPa
44042 - Potomac, MD 26 mi43 min WNW 16G19 64°F 70°F1015 hPa
44062 - Gooses Reef, MD 29 mi43 min WNW 16G21 65°F 69°F1 ft1014.7 hPa
BISM2 - 8571421 - Bishops Head, MD 38 mi55 min NW 14G17 64°F 62°F1013.9 hPa
BSLM2 - Chesapeake Bay, MD 39 mi67 min N 8.9 67°F 1013 hPa39°F
CA2 - 8571892 - Cambridge, MD 44 mi49 min WNW 13G19 65°F 67°F1013.4 hPa
WASD2 - 8594900 - Washington, DC 47 mi49 min NW 11G19 68°F 69°F1013.2 hPa

Wind History for Piney Point, MD
(wind in knots)    EDIT      (on/off)   Help
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Last
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NW20
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G32
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G27
NW18
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W10
G14
NW16
G21
W12
G16
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G16
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G16
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NW24
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G30
NW18
G25
NW21
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G21
NW15
G19
NW11
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N26
N16
N8
G12
N24
G31
NW24
G29
NW22
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NW18
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NW18
G22
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G28
NW26
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NW25
NW21
NW25
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G26
NW20
G26
NW15
G20
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SE6
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G14
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G9
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S11
G14
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G14
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G17
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G17
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G18
SW12
SW11
G14
SW14
S12
G16
SW11
G15
SW14
G17
W26
G44

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Marys County Airport, MD12 mi42 minWSW 710.00 miPartly Cloudy70°F43°F38%1014.2 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD18 mi44 minWNW 1010.00 miFair71°F41°F34%1013.6 hPa
Patuxent River, Naval Air Station, MD19 mi45 minWNW 1210.00 miA Few Clouds70°F39°F32%1013.7 hPa

Link to 5 minute data for K2W6

Wind History from 2W6 (wind in knots)
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Last 24hrW5W4W6W6W3W30W4W5W4W50W5W3SW3W5W7W11W10
G18
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G26
NW10
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1 day agoNW5N30NW4W4W5W4000W3W5W5W7W6W5W8W10
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2 days ago00SE3SE5000S30S30S4S4S3S3S5S6S8SW8S5S5S8SW6NW11
G18

Tide / Current Tables for Colton's Point, Maryland
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Colton's Point
Click for Map
Mon -- 01:38 AM EDT     2.03 feet High Tide
Mon -- 05:09 AM EDT     Moonset
Mon -- 07:19 AM EDT     Sunrise
Mon -- 07:29 AM EDT     0.08 feet Low Tide
Mon -- 02:02 PM EDT     2.08 feet High Tide
Mon -- 05:51 PM EDT     Moonrise
Mon -- 06:24 PM EDT     Sunset
Mon -- 07:54 PM EDT     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.8
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1.7
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1.9
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1.1
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0.6
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0.6
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1.1


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

Mon -- 12:24 AM EDT     -0.00 knots Slack
Mon -- 04:18 AM EDT     -0.84 knots Max Ebb
Mon -- 05:08 AM EDT     Moonset
Mon -- 07:18 AM EDT     Sunrise
Mon -- 08:14 AM EDT     0.00 knots Slack
Mon -- 10:25 AM EDT     0.58 knots Max Flood
Mon -- 01:06 PM EDT     -0.00 knots Slack
Mon -- 04:57 PM EDT     -0.89 knots Max Ebb
Mon -- 05:50 PM EDT     Moonrise
Mon -- 06:23 PM EDT     Sunset
Mon -- 09:05 PM EDT     0.00 knots Slack
Mon -- 10:51 PM EDT     0.43 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1
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-0.2
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-0.5
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-0.7
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-0.8
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-0.7
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-0.4
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-0.8
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-0.6
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-0.3
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-0
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0.4


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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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