USGS Surface Water for USA: Streamflow Measurements

USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources

Data Category:
Geographic Area:

Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins

Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 10260480 WILLOW C BL LK ARROWHEAD A LAKE ARROWHEAD CA

San Bernardino County, California

Hydrologic Unit Code 18090208

Latitude 34°15'54", Longitude 117°11'08" NAD83

Drainage area 6.76 square miles

Gage datum 5,110 feet above NGVD29

**Output formats**
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of data
Reselect output format

Output formats

HTML table with channel data

HTML table without channel data

Tab-separated data with channel data

Tab-separated data without channel data

Graph of data

Reselect output format

Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
56	2013-02-26 10:43	PST	Yes	cas	USGS	0.01	3.04			Poor	Clear	NONE
55	2012-12-20 13:45	PST	Yes	cas	USGS	0.00				Unspecified		NONE
54	2012-11-14 11:25	PST	Yes	cas	USGS	0.00				Unspecified	Unspecifed	NONE
53	2012-08-02 08:49	PDT	Yes	tek	USGS	0.00				Unspecified		NONE
52	2012-07-24 12:31:03	PDT	Yes	jwn/tek	USGS	0.00				Unspecified		NONE
51	2012-07-02 12:49	PDT	Yes	cas/rab	USGS	0.00				Unspecified	Clear	NONE
50	2012-06-01 11:58	PDT	Yes	cas/vjg	USGS	0.00				Unspecified	Clear	NONE
49	2012-04-03 13:42:30	PDT	Yes	cas/tek	USGS	0.63	3.23			Poor	DebrisHeavy	NONE
48	2012-03-05 12:38	PST	Yes	cas	USGS	0.00				Unspecified		NONE
47	2012-02-01 11:43	PST	Yes	cas	USGS	0.00				Unspecified		NONE
46	2012-01-05 12:45	PST	Yes	cas	USGS	0.00				Unspecified		NONE
45	2011-12-21 13:11	PST	Yes	CAS/TEK	USGS	0.00				Unspecified	NoFlow	NONE
44	2011-12-05 09:55	PST	Yes	TEK	USGS	0.00				Unspecified	NoFlow	NONE
43	2011-10-14 11:00	PDT	Yes	TEK/JGS	USGS	0.00				Unspecified	Unspecifed	NONE
42	2011-09-20 10:57	PDT	Yes	TEK	USGS	0.00				Unspecified	Unspecifed	NONE
41	2011-07-27 10:50	PDT	Yes	TEK	USGS	0.00				Unspecified	Unspecifed	NONE
40	2011-06-29 15:35	PDT	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
39	2011-06-13 12:28	PDT	Yes	TEK	USGS	1.81	3.28	0.00	0.70	Poor	VegetationHeavy	NONE
38	2011-05-23 11:05	PDT	Yes	TEK	USGS	6.18	3.60	0.01	0.50	Poor	VegetationHeavy	NONE
37	2011-04-19 11:00	PDT	Yes	TEK	USGS	8.96	3.66	0.01	0.70	Poor	VegetationHeavy	NONE
36	2011-02-09 13:06	PST	Yes	TEK	USGS	4.33	3.49	0.00	0.70	Poor		NONE
35	2011-01-06 09:55	PST	Yes	TEK	USGS	5.40	3.52	0.00	0.60	Poor	Clear	NONE
34A	2010-12-22 09:15	PST	Yes	JDK/KLS	USGS	460	7.98			Poor	Unspecifed	NONE
34	2010-12-01 10:10	PST	Yes	TEK	USGS	0.00				Unspecified	Clear	NONE
33	2010-11-03 08:55	PDT	Yes	TEK	USGS	0.00				Unspecified		NONE
32	2010-10-01 10:47	PDT	Yes	TEK	USGS	0.00				Unspecified	DebrisLight	NONE
31	2010-09-02 11:19	PDT	Yes	TEK	USGS	0.00				Unspecified	DebrisLight	NONE
30	2010-08-03 15:30	PDT	Yes	TEK	USGS	0.00				Unspecified	DebrisLight	NONE
29	2010-07-02 10:17	PDT	Yes	TEK	USGS	0.00				Unspecified	DebrisLight	NONE
28	2010-06-02 11:13:30	PDT	Yes	TEK	USGS	2.28	3.54	0.01	0.60	Poor	DebrisLight	NONE
27	2010-05-06 14:00	PDT	Yes	JA	USGS	3.69	3.65	0.00	0.70	Fair	DebrisLight	NONE
26	2010-04-06 16:45	PDT	Yes	GML	USGS	5.39	3.72	0.00	0.50	Good	DebrisLight	NONE
25	2010-03-03 15:25	PST	Yes	GML	USGS	3.40	3.65	0.01	0.50	Good	DebrisLight	NONE
24	2010-02-17 15:30	PST	Yes	GML	USGS	5.54	3.74	0.01	0.60	Fair	DebrisLight	NONE
23	2010-02-10 15:15	PST	Yes	GML	USGS	80.5	5.02	0.05	0.70	Fair	Clear	NONE
22	2010-01-04 15:45	PST	Yes	GML/TEK	USGS	0.00				Excellent	DebrisLight	NONE
21	2009-12-01 13:45	PST	Yes	JA	USGS	0.00				Unspecified	DebrisLight	NONE
20	2009-11-02 11:45	PST	Yes	JA	USGS	0.00				Unspecified	DebrisModerate	NONE
19	2009-10-02 12:35	PDT	Yes	JA	USGS	0.00				Unspecified	DebrisModerate	NONE
18	2009-09-01 15:45	PDT	Yes	JA	USGS	0.00				Unspecified	DebrisModerate	NONE
17	2009-08-03 15:20	PDT	Yes	JA	USGS	0.00				Unspecified	DebrisModerate	NONE
16	2009-07-01 12:00	PDT	Yes	JA	USGS	0.00				Unspecified	DebrisModerate	NONE
15	2009-06-15 14:55	PDT	Yes	LTB/JA	USGS	0.00				Unspecified	DebrisModerate	NONE
14	2009-06-01 12:30	PDT	Yes	JA	USGS	0.00				Unspecified	DebrisLight	NONE
13	2009-05-01 11:35	PDT	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
12	2009-04-01 15:35	PDT	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
11	2009-03-04 13:10	PST	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
10	2009-02-04 13:45	PST	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
9	2009-01-07 13:45	PST	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
6	2008-12-02 14:45	PST	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
5	2008-11-26 11:15	PST	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
4	2008-11-03 13:45	PST	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
3	2008-10-10 09:55	PDT	Yes	TEK/JA	USGS	0.00				Unspecified	Clear	NONE
2	2008-09-26 08:35	PDT	Yes	JA	USGS	0.00				Unspecified	Clear	NONE
1	2008-09-17 12:50	PDT	Yes	GML/JA	USGS	0.00				Unspecified	Clear	NONE

Meas.
Number

Date Time

Time
Datum

Measurement
Used?

Who

Measuring
Agency

Stream
flow
(ft³/s)

Gage
Height
(ft)

GH
Change
(ft)

Meas.
Duration
(hr)

Meas.
Rated

Control

Flow
Adjust.
Code

2013-02-26 10:43

PST

Yes

cas

USGS

0.01

3.04

Poor

Clear

NONE

2012-12-20 13:45

PST

Yes

cas

USGS

0.00

Unspecified

NONE

2012-11-14 11:25

PST

Yes

cas

USGS

0.00

Unspecified

Unspecifed

NONE

2012-08-02 08:49

PDT

Yes

tek

USGS

0.00

Unspecified

NONE

2012-07-24 12:31:03

PDT

Yes

jwn/tek

USGS

0.00

Unspecified

NONE

2012-07-02 12:49

PDT

Yes

cas/rab

USGS

0.00

Unspecified

Clear

NONE

2012-06-01 11:58

PDT

Yes

cas/vjg

USGS

0.00

Unspecified

Clear

NONE

2012-04-03 13:42:30

PDT

Yes

cas/tek

USGS

0.63

3.23

Poor

DebrisHeavy

NONE

2012-03-05 12:38

PST

Yes

cas

USGS

0.00

Unspecified

NONE

2012-02-01 11:43

PST

Yes

cas

USGS

0.00

Unspecified

NONE

2012-01-05 12:45

PST

Yes

cas

USGS

0.00

Unspecified

NONE

2011-12-21 13:11

PST

Yes

CAS/TEK

USGS

0.00

Unspecified

NoFlow

NONE

2011-12-05 09:55

PST

Yes

TEK

USGS

0.00

Unspecified

NoFlow

NONE

2011-10-14 11:00

PDT

Yes

TEK/JGS

USGS

0.00

Unspecified

Unspecifed

NONE

2011-09-20 10:57

PDT

Yes

TEK

USGS

0.00

Unspecified

Unspecifed

NONE

2011-07-27 10:50

PDT

Yes

TEK

USGS

0.00

Unspecified

Unspecifed

NONE

2011-06-29 15:35

PDT

Yes

USGS

0.00

Unspecified

Clear

NONE

2011-06-13 12:28

PDT

Yes

TEK

USGS

1.81

3.28

0.00

0.70

Poor

VegetationHeavy

NONE

2011-05-23 11:05

PDT

Yes

TEK

USGS

6.18

3.60

0.01

0.50

Poor

VegetationHeavy

NONE

2011-04-19 11:00

PDT

Yes

TEK

USGS

8.96

3.66

0.01

0.70

Poor

VegetationHeavy

NONE

2011-02-09 13:06

PST

Yes

TEK

USGS

4.33

3.49

0.00

0.70

Poor

NONE

2011-01-06 09:55

PST

Yes

TEK

USGS

5.40

3.52

0.00

0.60

Poor

Clear

NONE

34A

2010-12-22 09:15

PST

Yes

JDK/KLS

USGS

460

7.98

Poor

Unspecifed

NONE

2010-12-01 10:10

PST

Yes

TEK

USGS

0.00

Unspecified

Clear

NONE

2010-11-03 08:55

PDT

Yes

TEK

USGS

0.00

Unspecified

NONE

2010-10-01 10:47

PDT

Yes

TEK

USGS

0.00

Unspecified

DebrisLight

NONE

2010-09-02 11:19

PDT

Yes

TEK

USGS

0.00

Unspecified

DebrisLight

NONE

2010-08-03 15:30

PDT

Yes

TEK

USGS

0.00

Unspecified

DebrisLight

NONE

2010-07-02 10:17

PDT

Yes

TEK

USGS

0.00

Unspecified

DebrisLight

NONE

2010-06-02 11:13:30

PDT

Yes

TEK

USGS

2.28

3.54

0.01

0.60

Poor

DebrisLight

NONE

2010-05-06 14:00

PDT

Yes

USGS

3.69

3.65

0.00

0.70

Fair

DebrisLight

NONE

2010-04-06 16:45

PDT

Yes

GML

USGS

5.39

3.72

0.00

0.50

Good

DebrisLight

NONE

2010-03-03 15:25

PST

Yes

GML

USGS

3.40

3.65

0.01

0.50

Good

DebrisLight

NONE

2010-02-17 15:30

PST

Yes

GML

USGS

5.54

3.74

0.01

0.60

Fair

DebrisLight

NONE

2010-02-10 15:15

PST

Yes

GML

USGS

80.5

5.02

0.05

0.70

Fair

Clear

NONE

2010-01-04 15:45

PST

Yes

GML/TEK

USGS

0.00

Excellent

DebrisLight

NONE

2009-12-01 13:45

PST

Yes

USGS

0.00

Unspecified

DebrisLight

NONE

2009-11-02 11:45

PST

Yes

USGS

0.00

Unspecified

DebrisModerate

NONE

2009-10-02 12:35

PDT

Yes

USGS

0.00

Unspecified

DebrisModerate

NONE

2009-09-01 15:45

PDT

Yes

USGS

0.00

Unspecified

DebrisModerate

NONE

2009-08-03 15:20

PDT

Yes

USGS

0.00

Unspecified

DebrisModerate

NONE

2009-07-01 12:00

PDT

Yes

USGS

0.00

Unspecified

DebrisModerate

NONE

2009-06-15 14:55

PDT

Yes

LTB/JA

USGS

0.00

Unspecified

DebrisModerate

NONE

2009-06-01 12:30

PDT

Yes

USGS

0.00

Unspecified

DebrisLight

NONE

2009-05-01 11:35

PDT

Yes

USGS

0.00

Unspecified

Clear

NONE

2009-04-01 15:35

PDT

Yes

USGS

0.00

Unspecified

Clear

NONE

2009-03-04 13:10

PST

Yes

USGS

0.00

Unspecified

Clear

NONE

2009-02-04 13:45

PST

Yes

USGS

0.00

Unspecified

Clear

NONE

2009-01-07 13:45

PST

Yes

USGS

0.00

Unspecified

Clear

NONE

2008-12-02 14:45

PST

Yes

USGS

0.00

Unspecified

Clear

NONE

2008-11-26 11:15

PST

Yes

USGS

0.00

Unspecified

Clear

NONE

2008-11-03 13:45

PST

Yes

USGS

0.00

Unspecified

Clear

NONE

2008-10-10 09:55

PDT

Yes

TEK/JA

USGS

0.00

Unspecified

Clear

NONE

2008-09-26 08:35

PDT

Yes

USGS

0.00

Unspecified

Clear

NONE

2008-09-17 12:50

PDT

Yes

GML/JA

USGS

0.00

Unspecified

Clear

NONE