AN 535

Active Advisory: (US Severe Weather)
Forecast as of 4:30 PM EDT on May 23, 2013
Synopsis For The Tidal Potomac And Md Portion Of The Chesapeake Bay
Southerly flow will continue across the Chesapeake Bay until a cold front passes through the waters late tonight. An upper low will persist over the region Friday into Saturday with Canadian high pressure building through Tuesday. Small craft advisories are expected to continue into Saturday night. Gales are also possible late Friday into Saturday.
Forecast as of 4:30 PM EDT on May 23, 2013
Small Craft Advisory in effect until 6 PM EDT this evening
Small Craft Advisory in effect from Friday morning through late Friday night
Tidal Potomac From Key Bridge To Indian Head-
Rest Of This Afternoon
S winds 15 kt with gusts to 20 kt. Waves 1 ft. Showers and tstms likely.
Tonight
W winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. Patchy fog.
Fri
NW winds 15 to 20 kt. Gusts up to 25 kt... increasing to 30 kt in the afternoon. Waves 1 to 2 ft. A chance of showers.
Fri Night
NW winds 15 kt with gusts to 25 kt. Waves 1 ft. A chance of showers.
Sat
NW winds 15 kt with gusts to 25 kt. Waves 1 ft.
Sat Night
NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Sun
NW winds 15 kt...diminishing to 5 to 10 kt. Waves 1 ft.
Mon
NW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
Small Craft Advisory
Statement as of 13:41 EDT 23. Květen 2013

... Small Craft Advisory remains in effect until 6 PM EDT this
evening...
... Small Craft Advisory now in effect from 6 am Friday to 6 am
EDT Saturday...

The Small Craft Advisory is now in effect from 6 am Friday to
6 am EDT Saturday. A Small Craft Advisory remains in effect until
6 PM EDT this evening.

* Winds... 18 to 33 knots within the Small Craft Advisory. 18 to
33 knots within the Small Craft Advisory.

Precautionary/preparedness actions...

A Small Craft Advisory means that wind speeds of 18 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners... especially those operating smaller
vessels should avoid navigating in these conditions.







Marine Map
Click any area for a Zone forecast. Click the Station ID for station data.
Marine Weather Map
Marine Links
Tidal Potomac River and Maryland portion of Chesapeake Bay.
Sandy Hook NJ to Fenwick Island de to 20 nm offshore and Delaware Bay
Virginia portion of the Chesapeake Bay...Currituck Sound and Atlantic coastal waters from Fenwick Island de to Currituck Beach Light NC out 20 nautical miles
From S of Currituck Beach Light to N of Surf City NC out 20 nm... including the Albemarle and Pamlico sounds and The Monitor National marine Sanctuary
Surf City NC to South Santee River SC out 20 nm
South Santee River SC to Savannah GA out 20 nm and Savannah GA to Altamaha Sound GA out 60 nm...including Charleston Harbor and Grays Reef National marine Sanctuary
Atlantic coastal waters from Altamaha Sound GA to Flagler Beach FL out to 60 nm
Inland waters of western Washington and the northern and central Washington coastal waters
W central N Atlc Continental shelf and slope waters beyond 20 nm...to 250 nm offshore...including S of Georges Bank from 1000 FM to...250 nm offshore.
New England Continental shelf and slope waters from 25 nm offshore to the Hague line...except to 1000 FM S of New England.
Marine & Boating
Enter a coastal zip code for marine weather.
Pobřežní teplota vody
Lokalita Teplota
Washington, DC 73.0 °F
Baltimore, MD 73.0 °F
Solomons Island, MD 69.1 °F
Open Sea Buoy Information
Place ID Sea Temp Wave Height
Upper Potomac, MD 44061
-
-
Patuxent River Buoy 44044 48 °F
-
Gooses Reef, MD 44062
-
-
Annapolis 44063
-
-
Potomac, MD 44042
-
-
Click the Station ID for daily observations and history.
C-MAN Station Information
Place ID Water Temp Wave Height
Thomas Point, MD TPLM2 67 °F
-
Tide Heights
2013-05-23 2013-05-24
3 AM 9 AM 3 PM 9 PM 3 AM 9 AM 3 PM 9 PM
Tide Information
Date Time Tide Type Height
Alexandria, Potomac River, Virginia:
2013-05-23 2:11 PM EDT Low Tide 0.31
2013-05-23 7:45 PM EDT High Tide 2.87
2013-05-24 1:59 AM EDT Low Tide 0.37
2013-05-24 7:57 AM EDT High Tide 3.49
2013-05-24 3:06 PM EDT Low Tide 0.16
Bellevue, Potomac River, Washington, D.C.:
2013-05-23 2:11 PM EDT Low Tide 0.31
2013-05-23 8:01 PM EDT High Tide 3.05
2013-05-24 1:59 AM EDT Low Tide 0.37
2013-05-24 8:13 AM EDT High Tide 3.71
2013-05-24 3:06 PM EDT Low Tide 0.16
Bladensburg, Anacostia River, Maryland:
2013-05-23 2:47 PM EDT Low Tide 0.27
2013-05-23 7:58 PM EDT High Tide 3.16
2013-05-24 2:35 AM EDT Low Tide 0.31
2013-05-24 8:10 AM EDT High Tide 3.86
2013-05-24 3:42 PM EDT Low Tide 0.13
Indian Head, Potomac River, Maryland:
2013-05-23 12:49 PM EDT Low Tide 0.17
2013-05-23 7:13 PM EDT High Tide 1.94
2013-05-24 12:37 AM EDT Low Tide 0.20
2013-05-24 7:25 AM EDT High Tide 2.37
2013-05-24 1:44 PM EDT Low Tide 0.09
2013-05-24 8:05 PM EDT High Tide 1.98
Kenilworth Aquatic Garden, Anacostia River, Washington, D.C.:
2013-05-23 2:32 PM EDT Low Tide 0.25
2013-05-23 7:56 PM EDT High Tide 3.13
2013-05-24 2:20 AM EDT Low Tide 0.30
2013-05-24 8:08 AM EDT High Tide 3.82
2013-05-24 3:27 PM EDT Low Tide 0.13
Kingman Lake, Anacostia River, Washington, D.C.:
2013-05-23 2:26 PM EDT Low Tide 0.28
2013-05-23 7:49 PM EDT High Tide 3.07
2013-05-24 2:14 AM EDT Low Tide 0.33
2013-05-24 8:01 AM EDT High Tide 3.75
2013-05-24 3:21 PM EDT Low Tide 0.14
Marshall Hall, Potomac River, Maryland:
2013-05-23 1:28 PM EDT Low Tide 0.22
2013-05-23 7:37 PM EDT High Tide 2.45
2013-05-24 1:15 AM EDT Low Tide 0.26
2013-05-24 7:49 AM EDT High Tide 2.98
2013-05-24 2:22 PM EDT Low Tide 0.11
Quantico, Potomac River, Virginia:
2013-05-23 12:18 PM EDT Low Tide 0.16
2013-05-23 6:35 PM EDT High Tide 1.52
2013-05-24 12:06 AM EDT Low Tide 0.19
2013-05-24 6:47 AM EDT High Tide 1.86
2013-05-24 1:13 PM EDT Low Tide 0.08
2013-05-24 7:27 PM EDT High Tide 1.55
Washington Naval Yard, Anacostia River, Washington, D.C.:
2013-05-23 2:16 PM EDT Low Tide 0.28
2013-05-23 7:45 PM EDT High Tide 3.02
2013-05-24 2:04 AM EDT Low Tide 0.33
2013-05-24 7:57 AM EDT High Tide 3.68
2013-05-24 3:11 PM EDT Low Tide 0.14
Washington, Potomac River, D.C.:
2013-05-23 2:22 PM EDT Low Tide 0.24
2013-05-23 7:27 PM EDT High Tide 2.99
2013-05-24 2:10 AM EDT Low Tide 0.28
2013-05-24 7:39 AM EDT High Tide 3.64
2013-05-24 3:17 PM EDT Low Tide 0.12
2013-05-24 8:19 PM EDT High Tide 3.05
Currents Information
Date Time Current Type Speed
Freestone Point, 2.3 miles east of, Maryland Current:
2013-05-23 10:50 AM EDT Max Ebb -0.92 knots
2013-05-23 2:33 PM EDT Slack, Flood Begins 0.00 knots
2013-05-23 4:55 PM EDT Max Flood 0.43 knots
2013-05-23 6:54 PM EDT Slack, Ebb Begins -0.00 knots
2013-05-23 10:20 PM EDT Max Ebb -0.63 knots
2013-05-24 1:05 AM EDT Slack, Flood Begins 0.00 knots
2013-05-24 4:53 AM EDT Max Flood 1.14 knots
2013-05-24 7:57 AM EDT Slack, Ebb Begins -0.00 knots
2013-05-24 11:36 AM EDT Max Ebb -1.00 knots
2013-05-24 3:21 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 5:44 PM EDT Max Flood 0.46 knots
2013-05-24 7:44 PM EDT Slack, Ebb Begins -0.00 knots
Hains Point, D.C. Current:
2013-05-23 10:38 AM EDT Max Ebb -0.41 knots
2013-05-23 2:56 PM EDT Slack, Flood Begins 0.00 knots
2013-05-23 5:27 PM EDT Max Flood 0.38 knots
2013-05-23 7:26 PM EDT Slack, Ebb Begins -0.00 knots
2013-05-23 10:08 PM EDT Max Ebb -0.28 knots
2013-05-24 1:28 AM EDT Slack, Flood Begins 0.00 knots
2013-05-24 5:25 AM EDT Max Flood 1.02 knots
2013-05-24 8:29 AM EDT Slack, Ebb Begins -0.00 knots
2013-05-24 11:24 AM EDT Max Ebb -0.44 knots
2013-05-24 3:44 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 6:16 PM EDT Max Flood 0.41 knots
2013-05-24 8:16 PM EDT Slack, Ebb Begins -0.00 knots
Hallowing Point, Maryland Current:
2013-05-23 10:41 AM EDT Max Ebb -1.44 knots
2013-05-23 2:48 PM EDT Slack, Flood Begins 0.00 knots
2013-05-23 4:51 PM EDT Max Flood 0.67 knots
2013-05-23 6:58 PM EDT Slack, Ebb Begins -0.00 knots
2013-05-23 10:11 PM EDT Max Ebb -0.98 knots
2013-05-24 1:20 AM EDT Slack, Flood Begins 0.00 knots
2013-05-24 4:49 AM EDT Max Flood 1.78 knots
2013-05-24 8:01 AM EDT Slack, Ebb Begins -0.00 knots
2013-05-24 11:27 AM EDT Max Ebb -1.56 knots
2013-05-24 3:36 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 5:40 PM EDT Max Flood 0.71 knots
2013-05-24 7:48 PM EDT Slack, Ebb Begins -0.00 knots
Jones Point, Alexandria, Virginia Current:
2013-05-23 11:03 AM EDT Max Ebb -1.13 knots
2013-05-23 3:12 PM EDT Slack, Flood Begins 0.00 knots
2013-05-23 4:57 PM EDT Max Flood 0.58 knots
2013-05-23 7:31 PM EDT Slack, Ebb Begins -0.00 knots
2013-05-23 10:33 PM EDT Max Ebb -0.77 knots
2013-05-24 1:44 AM EDT Slack, Flood Begins 0.00 knots
2013-05-24 4:55 AM EDT Max Flood 1.52 knots
2013-05-24 8:34 AM EDT Slack, Ebb Begins -0.00 knots
2013-05-24 11:49 AM EDT Max Ebb -1.22 knots
2013-05-24 4:00 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 5:46 PM EDT Max Flood 0.61 knots
Quantico Creek entrance, Virginia Current:
2013-05-23 9:22 AM EDT Max Ebb -0.62 knots
2013-05-23 1:17 PM EDT Slack, Flood Begins 0.00 knots
2013-05-23 3:27 PM EDT Max Flood 0.29 knots
2013-05-23 5:25 PM EDT Slack, Ebb Begins -0.00 knots
2013-05-23 8:52 PM EDT Max Ebb -0.42 knots
2013-05-23 11:49 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 3:25 AM EDT Max Flood 0.76 knots
2013-05-24 6:28 AM EDT Slack, Ebb Begins -0.00 knots
2013-05-24 10:08 AM EDT Max Ebb -0.67 knots
2013-05-24 2:05 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 4:16 PM EDT Max Flood 0.30 knots
2013-05-24 6:15 PM EDT Slack, Ebb Begins -0.00 knots
Quantico, Virginia Current:
2013-05-23 9:47 AM EDT Max Ebb -1.13 knots
2013-05-23 1:42 PM EDT Slack, Flood Begins 0.00 knots
2013-05-23 3:52 PM EDT Max Flood 0.43 knots
2013-05-23 5:50 PM EDT Slack, Ebb Begins -0.00 knots
2013-05-23 9:17 PM EDT Max Ebb -0.77 knots
2013-05-24 12:14 AM EDT Slack, Flood Begins 0.00 knots
2013-05-24 3:50 AM EDT Max Flood 1.14 knots
2013-05-24 6:53 AM EDT Slack, Ebb Begins -0.00 knots
2013-05-24 10:33 AM EDT Max Ebb -1.22 knots
2013-05-24 2:30 PM EDT Slack, Flood Begins 0.00 knots
2013-05-24 4:41 PM EDT Max Flood 0.46 knots
2013-05-24 6:40 PM EDT Slack, Ebb Begins -0.00 knots

NOT FOR NAVIGATION. DO NOT RELY ON THIS DATA FOR DECISIONS THAT CAN RESULT IN HARM TO ANYONE OR ANYTHING.