How high is the Whitemarsh Run at White Marsh, MD right now?

The Whitemarsh Run at White Marsh, MD is currently flowing at 2 cubic feet per second with a gage height of 3.33 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Whitemarsh Run at White Marsh, MD normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 27th percentile compared to the long-term historical record at this gauge.

Is the Whitemarsh Run at White Marsh, MD at flood stage?

No — the gage height is 7.67 feet below the NWS flood-stage threshold of 11.0 feet.

What is the historical median flow for the Whitemarsh Run at White Marsh, MD on June 11?

The long-term median discharge for this date is 3 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 1 to 92 cfs.

Where is the Whitemarsh Run at White Marsh, MD stream gauge located?

The Whitemarsh Run at White Marsh, MD stream gauge is operated by the USGS in Baltimore County, MD on the Whitemarsh Run. USGS site number 01585100 (coordinates 39.3708, -76.4461).

Whitemarsh Run at White Marsh, MD

USGS Site No: 01585100 • Whitemarsh Run • Baltimore County, MD

Whitemarsh Run at White Marsh, MD on the Whitemarsh Run is currently at 2 cfs (Normal — 27th percentile for this date) . Gage height: 3.33 ft.

Reading from 1 week ago

↑ Upstream on Whitemarsh Run

Whitemarsh Run Near Fullerton, MD

CFS Discharge

3.33

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	1
25th	Low threshold	2
50th (Median)	Normal (median)	3	Today: 2 cfs
75th	High threshold	4
95th	Very High threshold	92

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 27, 2026	9	—
May 26, 2026	4	—
May 25, 2026	8	—
May 24, 2026	122	—
May 23, 2026	130	—
May 22, 2026	17	—
May 21, 2026	13	—
May 20, 2026	5	—
May 19, 2026	2	—
May 18, 2026	2	—
May 17, 2026	2	—
May 16, 2026	3	—
May 15, 2026	3	—
Apr 21, 2026	3	—
Apr 20, 2026	4	—
Apr 19, 2026	6	—
Apr 18, 2026	4	—
Apr 17, 2026	4	—
Apr 16, 2026	4	—
Apr 15, 2026	6	—
Apr 14, 2026	4	—
Apr 13, 2026	4	—
Apr 12, 2026	4	—
Apr 11, 2026	4	—
Apr 10, 2026	4	—
Apr 9, 2026	4	—
Apr 8, 2026	4	—
Apr 7, 2026	5	—
Apr 6, 2026	7	—
Apr 5, 2026	17	—

Station Information

USGS Site No: 01585100
State: MD
County: Baltimore County
Coordinates: 39.3708, -76.4461
Drainage Area: 8 mi²
Datum (ft): 33.7
HUC Code: 02060003

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 9.0 ft
Flood Stage: 11.0 ft
Moderate Flood: 15.0 ft
Major Flood: 18.0 ft

Currently 7.67 ft below flood stage.

Recent Extremes

Max discharge: 284 cfs

Jul 31, 2025
Min discharge: 1 cfs

Jan 5, 2026
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Minebank Run Near Glen Arm, MD
6.5 mi · 1 cfs

Normal
Long Quarter Branch at Lutherville, MD
8.9 mi · 1 cfs

Normal
Wheel Creek Near Abingdon, MD
9.5 mi · 0 cfs

Normal
Plumtree Run Near Bel Air, MD
10.1 mi · 1 cfs

Low
Winters Run Near Bel Air, MD
10.8 mi · 22 cfs

Normal