Daily Bay Command
Shady Side · West River · Thomas Point · Annapolis · Bay Bridge
Checking the Bay…
On the Water
Marine conditions, best windows, route thinking, and open-Bay exposure assessment
Generating Bay read…
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Animated marine weather centered on the middle Bay. Select a layer below.
NOAA probability-of-encounter maps for Chrysaora chesapeakei — the Chesapeake Bay sea nettle. Most abundant in middle Bay tributaries where salinity runs 10–20 ppt. Updated daily from NOAA NCCOS model runs.
What this means from Shady Side: Sea nettles are most common June through September when water temperatures exceed 78°F and salinity is in the 10–20 ppt range. The middle Bay tributaries — West River, South River, Rhode River — are prime nettle habitat. Higher probability doesn't mean guaranteed stings, but plan accordingly for swimming and crabbing.
Practical notes: Nettles concentrate near the surface in calm water and along current lines. Windy days and moving water can disperse them. Early season (June) is usually lighter; peak is July–August. Vinegar helps with stings — not freshwater.
Route Thinking by Zone
Live Vessel Traffic
Commercial movement, bridge approaches, and why traffic matters to small boats
AIS vessel tracking centered on Thomas Point, Annapolis, and the Bay Bridge corridor. If your browser blocks the embed, use the direct links below.
Commercial vessels in the Chesapeake don't stop, don't turn easily, and often can't see you. Cargo ships, tankers, and tug-barge combos transit the main shipping channel from the Bay Bridge south through the middle Bay 24 hours a day. Their wake alone can swamp a small skiff.
Key awareness zones from Shady Side and Annapolis:
Current, commercial traffic lanes, and recreational boat congestion converge at the bridge. Stay clear of the main channel spans. Commercial vessels have right of way.
Harbor approaches stack with sailboat races, tour boats, and commercial traffic. The Severn River entrance narrows sight lines.
The open-Bay zone south of Annapolis where the shipping channel is close to western shore small-boat territory. Crossing requires attention.
North-south cargo, tanker, and tug traffic uses the deep channel. When crossing, look both ways and cross at right angles to minimize time in the lane.
Watch Live
YouTube live/watch wall for Shady Side, Annapolis, the Bay Bridge corridor, and the broader Chesapeake
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Fishing Intelligence
Stripers, perch, specks, catfish, and practical Bay logic by season and zone
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Crabbing Intelligence
Tide windows, gear, size rules, and what matters on a normal Bay day
Maps & Charts
Ramps, marinas, fuel, anchorages, fishing zones, and crabbing water
Click any marker for details. Use the coordinate picker to get lat/lng for adding new POIs.
Seasonal Bay Almanac
A field-guide timeline of the year on the water — from Shady Side to the bridge
Bay BOLO
Invasive species, hazards, and stewardship reminders
Boating Safety & Regulations
Navigation rules, required equipment, vessel awareness, and Maryland-specific regulations
The basics every operator should know before leaving the dock. Based on USCG Navigation Rules and COLREGS. Not a substitute for a boating safety course — but a quick-reference for the rules that matter most on the Chesapeake.
Both boats steer to starboard (right) and pass port-to-port. This is the default for two power vessels approaching each other.
The boat on your right is the stand-on vessel — it holds course and speed. You are the give-way vessel and must pass behind it.
The vessel being passed always has the right of way. The passing vessel must stay clear and bear full responsibility.
Power-driven vessels must yield to sailing vessels — unless the sailboat is overtaking. Power also yields to vessels not under command, restricted in ability to maneuver, and vessels engaged in fishing.
Operate at a speed that allows you to take proper action to avoid collision. Comply with no-wake zones — fully off plane, minimal wake. Conditions, visibility, traffic density, and your stopping distance all factor in.
Short blast ≈ 1 second. Prolonged blast ≈ 4–6 seconds. Required in restricted visibility and during maneuvering situations.
I intend to alter course to starboard (pass on your port side).
I intend to alter course to port (pass on your starboard side).
Danger signal — I do not understand your intentions or disagree with your maneuver.
Warning signal — approaching a bend, leaving a dock, or restricted visibility.
One USCG-approved PFD for each person on board. Must be accessible — not buried in a locker. Properly sized. Children under 13 must wear them.
Type IV throwable — buoyant cushion or ring buoy. Required on boats 16 feet and over. Must be immediately available, not stowed.
Whistle or horn. Required on all vessels. Boats 39.4 feet and over need both a whistle and a bell.
Marine-grade, USCG-approved. Required on boats with enclosed engine compartments, fuel tanks, or enclosed living spaces. Check expiration and charge.
Required on coastal waters for boats 16 feet and over. Three day signals and three night signals (flares), or a single USCG-approved day/night electronic signal.
Required from sunset to sunrise and in restricted visibility. Red (port), green (starboard), white stern, and masthead lights per vessel type.
Waterproof reference cards worth keeping on board.
Waterproof card covering buoy shapes, colors, light patterns, and lateral/cardinal mark systems.
View on Amazon ↗Compact waterproof card with COLREGS rules, right-of-way diagrams, and sound signal reference.
View on Amazon ↗