How high is the Big Cypress Bayou near Jefferson, TX right now?

The Big Cypress Bayou near Jefferson, TX is currently flowing at 16 cubic feet per second with a gage height of 3.41 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Big Cypress Bayou near Jefferson, TX normal for this time of year?

Current flow is classified as very low for June 11. Today's discharge is at the 5th percentile compared to the long-term historical record at this gauge.

Is the Big Cypress Bayou near Jefferson, TX at flood stage?

No — the gage height is 16.59 feet below the NWS flood-stage threshold of 20.0 feet.

What is the historical median flow for the Big Cypress Bayou near Jefferson, TX on June 11?

The long-term median discharge for this date is 157 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 35 to 2,970 cfs.

Where is the Big Cypress Bayou near Jefferson, TX stream gauge located?

The Big Cypress Bayou near Jefferson, TX stream gauge is operated by the USGS in Marion County, TX on the Big Cypress Bayou. USGS site number 07346000 (coordinates 32.7496, -94.4988).

Big Cypress Bayou near Jefferson, TX

USGS Site No: 07346000 • Big Cypress Bayou • Marion County, TX

Big Cypress Bayou near Jefferson, TX on the Big Cypress Bayou is currently at 16 cfs (Very Low — 5th percentile for this date) . Gage height: 3.41 ft.

Reading from 1 week ago

CFS Discharge

3.41

Gage Height (ft)

Very Low

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	35	Today: 16 cfs
25th	Low threshold	54
50th (Median)	Normal (median)	157
75th	High threshold	992
95th	Very High threshold	2,970

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 28, 2026	16	3.39
May 27, 2026	17	3.54
May 26, 2026	16	3.45
May 25, 2026	16	3.43
May 24, 2026	16	3.40
May 23, 2026	16	3.44
May 22, 2026	16	3.41
May 21, 2026	16	3.36
May 20, 2026	16	3.40
May 19, 2026	16	3.39
May 18, 2026	15	3.34
May 17, 2026	15	3.31
May 16, 2026	15	3.29
May 15, 2026	14	3.20
Apr 20, 2026	21	3.48
Apr 19, 2026	22	3.53
Apr 18, 2026	24	3.63
Apr 17, 2026	25	3.67
Apr 16, 2026	25	3.69
Apr 15, 2026	25	3.68
Apr 14, 2026	25	3.69
Apr 13, 2026	24	3.65
Apr 12, 2026	26	3.71
Apr 11, 2026	29	3.79
Apr 10, 2026	23	3.57
Apr 9, 2026	24	3.63
Apr 8, 2026	26	3.72
Apr 7, 2026	26	3.71
Apr 6, 2026	27	3.74
Apr 5, 2026	37	4.08

Station Information

USGS Site No: 07346000
State: TX
County: Marion County
Coordinates: 32.7496, -94.4988
Drainage Area: 850 mi²
Datum (ft): 180.0
HUC Code: 11140306

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 20.0 ft
Flood Stage: 20.0 ft
Moderate Flood: 21.0 ft
Major Flood: 22.0 ft

Currently 16.59 ft below flood stage.

Recent Extremes

Max discharge: 2,780 cfs

Apr 24, 2025
Min discharge: 14 cfs

May 15, 2026
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Black Cypress Bayou at Jefferson, TX
8.4 mi · 88 cfs

Normal
Little Cypress Bayou near Jefferson, TX
9.2 mi · 172 cfs

Normal
Big Cypress Ck above Sh 43 near Karnack, TX
15.5 mi · 227 cfs

Normal
Little Cypress Ck near Ore City, TX
15.6 mi · 112 cfs

Normal
Sabine Rv above Longview, TX
25.8 mi · 335 cfs

Normal