Flood Risk.
Live USGS gauge readings for the rivers and creeks running through our MD, PA, WV, and VA service region. Watch the levels — and call Catalyst the moment water starts taking your basement.
- Normal
- Action Stage
- Minor Flood
- Moderate Flood
- Major Flood
Service-region river + creek levels.
- Normal
Antietam Creek near Sharpsburg
Sharpsburg, MD
Stage2.5ft
Below action4.5ft
A 7Mn 9Md 11Mj 132h ago · USGS 01619000
- Normal
Cacapon River near Great Cacapon
Great Cacapon, WV / Berkeley Springs
Stage2.0ft
Below action5.0ft
A 7Mn 9Md 12Mj 162h ago · USGS 01611500
- Normal
Conococheague Creek at Fairview
Williamsport, MD
Stage1.9ft
Below action4.1ft
A 6Mn 8Md 10Mj 122h ago · USGS 01614500
- Normal
Monocacy River at Frederick
Frederick, MD
Stage2.3ft
Below action6.7ft
A 9Mn 14Md 18Mj 222h ago · USGS 01643000
- Normal
Opequon Creek near Berryville
Berryville, VA / Winchester, VA
Stage2.2ft
Below action3.8ft
A 6Mn 8Md 10Mj 132h ago · USGS 01616500
- Normal
Potomac River at Hancock
Hancock, MD
Stage4.6ft
Below action8.4ft
A 13Mn 18Md 24Mj 301h ago · USGS 01613000
- Normal
Potomac River at Point of Rocks
Point of Rocks, MD
Stage2.3ft
Below action9.7ft
A 12Mn 16Md 20Mj 261h ago · USGS 01636500
- Normal
Potomac River at Shepherdstown
Shepherdstown, WV / Sharpsburg, MD
Stage2.5ft
Below action8.5ft
A 11Mn 15Md 21Mj 281h ago · USGS 01619500
Cross-links for active basement-flooding situations.
Flood gauges are a forecasting tool. The actual response when water starts entering your home lives at the links below.
Flood gauge FAQ
Action stage is the gauge height at which the NWS expects rising water to start causing problems — typically when a river or creek begins to leave its banks at low spots. It is below flood stage, but it is the signal that flooding is possible if rain continues.
Minor flood = some inundation of public roads and low-lying property. Moderate flood = significant property impact, some evacuations. Major flood = widespread property damage, extensive evacuations. The specific elevations come from the NWS Advanced Hydrologic Prediction Service for each gauge.
USGS gauges report on 15-minute intervals. This page caches readings for 10 minutes to avoid hammering the public API, so worst case you are looking at 25-minute-old data. During a flood event, refresh the page to pull the latest.
Cut electrical to the affected area, move contents up, photograph everything, and call Catalyst. Mitigation can start within 1–2 hours across our core service area. Speed of response is what separates a manageable mitigation from a full remediation.
Water taking your basement right now? Call.
Catalyst crews stage across MD, PA, WV, and VA — call now or request emergency response.