Sunny
Calvert County, MD · Chesapeake Bay
Flag Ponds Nature Park
1525 Flag Ponds Pkwy, Lusby, MD 20657
327-acre Calvert County park with 3,000 feet of sandy beach, fossil cliffs, freshwater ponds, and wooded trails. Closer to the water than Calvert Cliffs but with similar fossil-hunting opportunities.
Today's Conditions
Ideal for fossil hunting.
NWS alert active · 82°F water · 86°F air
Full NWS forecast for This Afternoon
Sunny, with a high near 86. South wind around 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 73. South wind around 13 mph, with gusts as high as 22 mph.
Weather
- 86°F air — ideal beach weather
- Sunny skies — clear conditions
Water
- 82°F water — warm — full-day swim weather
- Moderate nettle risk — 59% probability — expect some stings
Safety
- NWS alert active — small craft advisory issued september 9 at 12:18pm edt until september 10 at 7:00am edt by nws baltimore md/washington dc
Best for fossil hunting today
Observed water level is running higher than the astronomical tide prediction. Expect a narrower beach, faster-rising water, and stronger near-shore currents than the tide chart suggests.
Small Craft Advisory issued September 9 at 12:18PM EDT until September 10 at 7:00AM EDT by NWS Baltimore MD/Washington DC
Full NWS statement
* WHAT...South winds 15 to 25 kt with gusts up to 30 kt expected. * WHERE...Chesapeake Bay and adjoining estuaries north of Drum Point MD. * WHEN...Until 7 AM EDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.
Atmosphere
Water
Sun & Moon
Tides
| Time | Type | Height |
|---|---|---|
| 1:11 AM | High | 1.8 ft |
| 7:36 AM | Low | 0.6 ft |
| 1:14 PM | High | 1.7 ft |
| 7:44 PM | Low | 0.3 ft |
| Time | Type | Height |
|---|---|---|
| 1:57 AM | High | 1.8 ft |
| 8:22 AM | Low | 0.5 ft |
| 2:07 PM | High | 1.8 ft |
| 8:35 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 2:41 AM | High | 1.8 ft |
| 9:05 AM | Low | 0.4 ft |
| 2:58 PM | High | 1.8 ft |
| 9:24 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 3:23 AM | High | 1.8 ft |
| 9:47 AM | Low | 0.4 ft |
| 3:47 PM | High | 1.8 ft |
| 10:11 PM | Low | 0.5 ft |
| Time | Type | Height |
|---|---|---|
| 4:05 AM | High | 1.7 ft |
| 10:29 AM | Low | 0.4 ft |
| 4:34 PM | High | 1.8 ft |
| 10:58 PM | Low | 0.5 ft |
| Time | Type | Height |
|---|---|---|
| 4:46 AM | High | 1.7 ft |
| 11:11 AM | Low | 0.4 ft |
| 5:21 PM | High | 1.7 ft |
| 11:46 PM | Low | 0.6 ft |
| Time | Type | Height |
|---|---|---|
| 5:29 AM | High | 1.6 ft |
| 11:54 AM | Low | 0.4 ft |
| 6:08 PM | High | 1.7 ft |
High/low predictions from NOAA station 8577330, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Partly Sunny
Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Mostly Sunny
Mostly Sunny
What to Bring Today
- critical SPF 50 sunscreen UV index 8 — very high
- recommended Sturdy umbrella + sand anchor 14 mph wind
- optional Swimsuit - water is swimmable Water is 82°F
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
Small lot, fills on summer weekends.
Dogs
Dogs not permitted.
Entry Fee
$5/vehicle Calvert resident, $15/vehicle non-resident (Apr–Oct); $5/vehicle weekends only Jan–Mar
Address
1525 Flag Ponds Pkwy, Lusby, MD 20657
Amenities
Frequently Asked
Is it safe to swim at Flag Ponds Nature Park today?
Flag Ponds Nature Park shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Flag Ponds Nature Park dog-friendly?
Dogs not permitted.
Is there an entry fee at Flag Ponds Nature Park?
$5/vehicle Calvert resident, $15/vehicle non-resident (Apr–Oct); $5/vehicle weekends only Jan–Mar
Are there lifeguards at Flag Ponds Nature Park?
No lifeguards are stationed at Flag Ponds Nature Park. Swim at your own risk and keep close watch on children.
What amenities are at Flag Ponds Nature Park?
Amenities at Flag Ponds Nature Park include restrooms, trails, observation tower, fossils.
When is the water warmest at Flag Ponds Nature Park?
The Chesapeake warms quickly — water temperatures peak in late July and August, typically 78-82°F. Swimming comfortable from mid-June through September.
Where is Flag Ponds Nature Park located?
Flag Ponds Nature Park is in Calvert County, MD, at 1525 Flag Ponds Pkwy, Lusby, MD 20657.
Nearby Beaches
Updated · Data from NOAA, NWS