Delaware streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Delaware. Built for paddlers, anglers, water managers, and flood researchers.
Streamflow levels across Delaware are currently 49% of normal, with the Brandywine Creek At Wilmington reporting the highest discharge in the state at 129 cfs and a gauge stage of 8.59 ft.
Meanwhile, the White Clay Creek At Newark is seeing a spike today — up 71% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Delaware's named rivers.
Active weather warnings for Delaware
Delaware residents across all counties are facing a dangerous combination of extreme heat and poor air quality on July 15th. New Castle County is under an Extreme Heat Warning with heat index values reaching 107 degrees, while Kent and Sussex Counties are under a Heat Advisory with indices up to 108 degrees. All three counties—New Castle, Kent, and Sussex—are also under Code Orange Air Quality Alerts, making conditions unhealthy for sensitive groups including children, elderly residents, and those with asthma or heart disease. Heat-related illnesses are expected to increase significantly throughout the day from 10 AM to 8 PM EDT. Residents should limit outdoor activity, stay hydrated, and check on vulnerable neighbors. Similar dangerous conditions are expected to continue into Thursday with heat indices in the upper 90s to near 100 degrees.
State-wide streamflow overview
The Delaware flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 8.59 ft
Biggest 24h spike
Now 21 cfs
Network coverage
USGS gauges feeding 0 named rivers in Delaware.
Delaware USGS streamgauges
Every USGS gauge Snoflo tracks in Delaware. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Brandywine Creek At Wilmington, De
8 hours ago · USGS 01481500 |
129 cfs | 8.59 ft | 79°F | 74°F | 49 ft | Brandywine-Christina |
|
White Clay Creek Near Newark, De
9 hours ago · USGS 01479000 |
29 cfs | 4.97 ft | 78°F | 74°F | 17 ft | Brandywine-Christina |
|
Red Clay Creek Near Stanton, De
10 hours ago · USGS 01480015 |
25 cfs | 7.57 ft | · | 74°F | 17 ft | Brandywine-Christina |
|
White Clay Creek At Newark, De
9 hours ago · USGS 01478650 |
25 cfs | 5.11 ft | 78°F | 74°F | 87 ft | Brandywine-Christina |
|
Red Clay Creek At Wooddale, De
9 hours ago · USGS 01480000 |
23 cfs | 2.82 ft | 76°F | 74°F | 100 ft | Brandywine-Christina |
|
Nanticoke River Near Bridgeville, De
9 hours ago · USGS 01487000 |
14 cfs | 3.53 ft | · | 73°F | 15 ft | Nanticoke |
|
St Jones River At Dover, De
8 hours ago · USGS 01483700 |
14 cfs | 2.72 ft | 79°F | 75°F | 3 ft | Broadkill-Smyrna |
|
Millsboro Pond Outlet At Millsboro, De
9 hours ago · USGS 01484525 |
12 cfs | 2.91 ft | 85°F | 73°F | 7 ft | Chincoteague |
|
Christina River At Coochs Bridge, De
9 hours ago · USGS 01478000 |
8 cfs | 3.99 ft | 76°F | 74°F | 53 ft | Brandywine-Christina |
|
Silver Lake Tributary At Middletown, De
9 hours ago · USGS 01483155 |
4 cfs | · | 66°F | 74°F | 29 ft | Brandywine-Christina |
|
Marshyhope Creek Near Adamsville, De
9 hours ago · USGS 01488500 |
2 cfs | 2.12 ft | · | 73°F | 29 ft | Nanticoke |
|
Shellpot Creek At Wilmington, De
9 hours ago · USGS 01477800 |
1 cfs | 1.52 ft | · | 75°F | 55 ft | Brandywine-Christina |
|
Blackbird Creek At Blackbird, De
9 hours ago · USGS 01483200 |
1 cfs | · | · | 75°F | 20 ft | Brandywine-Christina |
|
Beaverdam Branch At Houston, De
9 hours ago · USGS 01484100 |
0 cfs | 2.25 ft | 71°F | 74°F | 38 ft | Broadkill-Smyrna |
|
Beaverdam Ditch Near Millville, De
9 hours ago · USGS 01484695 |
0 cfs | · | · | 74°F | 11 ft | Chincoteague |
See every Delaware gauge ranked against normal.
- Percentile rank & % of median for all 15 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About Delaware streamflow
Where does the Delaware streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Delaware data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Delaware gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.