Cattail Creek Near Glenwood, MD

USGS Site No: 01591400 • Cattail Creek • Howard County, MD

Cattail Creek Near Glenwood, MD on the Cattail Creek is currently at 17 cfs (Normal — 44th percentile for this date) . Gage height: 0.74 ft.

Reading from

17
CFS Discharge
0.74
Gage Height (ft)
Normal
Flow Condition
N/A
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 9
25th Low threshold 12
50th (Median) Normal (median) 19 Today: 17 cfs
75th High threshold 27
95th Very High threshold 126

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.

306 153 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 25 —
May 27, 2026 38 —
May 26, 2026 22 —
May 25, 2026 30 —
May 24, 2026 90 —
May 23, 2026 75 —
May 22, 2026 13 —
May 21, 2026 13 —
May 20, 2026 9 —
May 19, 2026 8 —
May 18, 2026 9 —
May 17, 2026 9 —
May 16, 2026 10 —
May 15, 2026 10 —
Apr 21, 2026 10 —
Apr 20, 2026 11 —
Apr 19, 2026 11 —
Apr 18, 2026 10 —
Apr 17, 2026 11 —
Apr 16, 2026 12 —
Apr 15, 2026 13 —
Apr 14, 2026 12 —
Apr 13, 2026 13 —
Apr 12, 2026 12 —
Apr 11, 2026 13 —
Apr 10, 2026 13 —
Apr 9, 2026 13 —
Apr 8, 2026 13 —
Apr 7, 2026 15 —
Apr 6, 2026 17 —

Station Information

USGS Site No
01591400
State
MD
County
Howard County
Coordinates
39.2560, -77.0511
Drainage Area
23 mi²
Datum (ft)
374.3
HUC Code
020600060102
View on USGS NWIS →

Recent Extremes

Max discharge
302 cfs
Jun 18, 2025
Min discharge
5 cfs
Sep 15, 2025

Computed from the local daily-values archive.

Nearby Gauges

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