When does Black River at Harkey Crossing near Malaga, NM normally run highest?

January, on the long-term record. The median daily flow that month is about 8.2 cfs, against 5.6 cfs in June, the lowest month. These are historical normals for the date, not a forecast and not today's reading.

How long has Black River at Harkey Crossing near Malaga, NM been measured?

Discharge records at USGS site 08405400 begin in 2019, about 7 years, covering roughly 1,981 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.

Is there a flow forecast for Black River at Harkey Crossing near Malaga, NM?

Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.

Where is Black River at Harkey Crossing near Malaga, NM?

The gauge sits at 32.23595, -104.19665, in New Mexico, in hydrologic subbasin 13060011, at an elevation of about 3,128 feet, draining roughly 357 square miles.

Can I use Black River at Harkey Crossing near Malaga, NM data for flood or safety decisions?

No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

USGS Streamgage 08405400

Black River at Harkey Crossing near Malaga, NM

Black River at Harkey Crossing near Malaga, NM is USGS streamgage 08405400 in New Mexico, monitoring river discharge in hydrologic subbasin 13060011. It sits on the Black River, alongside 3 other gauges Rivermatics tracks on the same river. It drains a watershed of about 357 square miles. Discharge records at this site go back to 2019. Typical flow runs near 6.2 cfs in July and 7.3 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State: New Mexico
Drainage area: 357 sq mi
Gauge elevation: 3,128 ft
Subbasin (HUC-8): 13060011
Coordinates: 32.23595, -104.19665
USGS site number: 08405400
Records begin: 2019-06-26 (7 years)
Rivermatics forecast: 14-day flow outlook

14-day flow forecast

Based on observations through September 16 for Black River at Harkey Crossing near Malaga, NM. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date	Low p10	Expected p50	High p90
September 17	1.7	1.9	2.1
September 18	1.6	1.8	2.2
September 19	1.6	1.9	3
September 20	1.6	1.9	3.2
September 21	1.5	1.9	2.9
September 22	1.6	2.2	6.2
September 23	1.7	2.9	15.1
September 24	1.7	3.6	24.2
September 25	1.7	3.4	21.2
September 26	1.7	2.9	11.1
September 27	1.6	2.6	6.9
September 28	1.6	3	11.5
September 29	1.7	3.7	20.8
September 30	1.7	3.4	15.3

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 3 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month	Low p10	Typical p50	High p90
January	—	8.2	—
February	—	7.3	—
March	—	8.1	—
April	—	7.3	—
May	—	7	—
June	—	5.6	—
July	—	6.2	—
August	—	6.5	—
September	—	7.5	—
October	—	8.2	—
November	—	7	—
December	—	7.4	—

All values in cubic feet per second (cfs).

Common questions

When does Black River at Harkey Crossing near Malaga, NM normally run highest?: January, on the long-term record. The median daily flow that month is about 8.2 cfs, against 5.6 cfs in June, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
How long has Black River at Harkey Crossing near Malaga, NM been measured?: Discharge records at USGS site 08405400 begin in 2019, about 7 years, covering roughly 1,981 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Black River at Harkey Crossing near Malaga, NM?: Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Black River at Harkey Crossing near Malaga, NM?: The gauge sits at 32.23595, -104.19665, in New Mexico, in hydrologic subbasin 13060011, at an elevation of about 3,128 feet, draining roughly 357 square miles.
Can I use Black River at Harkey Crossing near Malaga, NM data for flood or safety decisions?: No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Black River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Black River in full.

Black River below Blue Springs near Whites City, NM 318 sq mi
Black River at Harkey Crossing near Malaga, NM this page
Black River above Malaga, NM 371 sq mi
Black River at Malaga, NM 387 sq mi