How high is the North Prong St. Marys River at Moniac, GA right now?

The North Prong St. Marys River at Moniac, GA is currently flowing at 0 cubic feet per second with a gage height of 3.95 feet, based on the most recent USGS instantaneous reading.

Is the flow on the North Prong St. Marys River at Moniac, GA normal for this time of year?

Current flow is classified as low for June 11. Today's discharge is at the 14th percentile compared to the long-term historical record at this gauge.

Is the North Prong St. Marys River at Moniac, GA at flood stage?

No — the gage height is 8.05 feet below the NWS flood-stage threshold of 12.0 feet.

What is the historical median flow for the North Prong St. Marys River at Moniac, GA on June 11?

The long-term median discharge for this date is 11 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 0 to 453 cfs.

Where is the North Prong St. Marys River at Moniac, GA stream gauge located?

The North Prong St. Marys River at Moniac, GA stream gauge is operated by the USGS in Baker County, FL on the North Prong St. Marys River. USGS site number 02228500 (coordinates 30.5177, -82.2304).

North Prong St. Marys River at Moniac, GA

USGS Site No: 02228500 • North Prong St. Marys River • Baker County, FL

North Prong St. Marys River at Moniac, GA on the North Prong St. Marys River is currently at 0 cfs (Low — 14th percentile for this date) . Gage height: 3.95 ft.

Reading from 1 week ago

CFS Discharge

3.95

Gage Height (ft)

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	0
25th	Low threshold	1	Today: 0 cfs
50th (Median)	Normal (median)	11
75th	High threshold	54
95th	Very High threshold	453

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	0	3.95
May 27, 2026	0	3.95
May 26, 2026	0	3.94
May 25, 2026	0	3.93
May 24, 2026	0	3.94
May 23, 2026	0	3.84
May 22, 2026	0	3.83
May 21, 2026	0	3.85
May 20, 2026	0	3.87
May 19, 2026	0	3.89
May 18, 2026	0	3.91
May 17, 2026	0	3.92
May 16, 2026	0	3.91
May 15, 2026	0	3.92
Apr 21, 2026	0	3.76
Apr 20, 2026	0	3.77
Apr 19, 2026	0	3.80
Apr 18, 2026	0	3.82
Apr 17, 2026	0	3.83
Apr 16, 2026	0	3.85
Apr 15, 2026	0	3.88
Apr 14, 2026	0	3.88
Apr 13, 2026	0	3.89
Apr 12, 2026	0	3.90
Apr 11, 2026	0	3.89
Apr 10, 2026	0	3.89
Apr 9, 2026	0	3.89
Apr 8, 2026	0	3.89
Apr 7, 2026	0	3.89
Apr 6, 2026	0	3.87

Station Information

USGS Site No: 02228500
State: FL
County: Baker County
Coordinates: 30.5177, -82.2304
Drainage Area: 160 mi²
HUC Code: 03070204

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 10.0 ft
Flood Stage: 12.0 ft
Moderate Flood: 15.0 ft
Major Flood: 17.0 ft

Currently 8.05 ft below flood stage.

Recent Extremes

Max discharge: 116 cfs

Jul 4, 2025
Min discharge: 0 cfs

May 22, 2026
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

St. Marys River Near Macclenny, FL
14.1 mi · 30 cfs

Low
Suwannee River at Us 441, at Fargo, GA
22.6 mi · 38 cfs

Low
Trout River near Jacksonville Fla
32.5 mi · -3,990 cfs

Very Low
Suwannee River at White Springs, Fla.
33.0 mi · 65 cfs

Low
Cedar River at San Juan Avenue at Jacksonville, FL
33.4 mi · 14 cfs

Normal