Historical ALERT Stream Gage Information
Historical Data For All Sensors
Ending Date & Time:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2024
2023
12:00:00 AM
01:00:00 AM
02:00:00 AM
03:00:00 AM
04:00:00 AM
05:00:00 AM
06:00:00 AM
07:00:00 AM
08:00:00 AM
09:00:00 AM
10:00:00 AM
11:00:00 AM
12:00:00 PM
01:00:00 PM
02:00:00 PM
03:00:00 PM
04:00:00 PM
05:00:00 PM
06:00:00 PM
07:00:00 PM
08:00:00 PM
09:00:00 PM
10:00:00 PM
11:00:00 PM
11:59:59 PM
Historical Data For Single Sensor
Select a Sensor:
5001 Upper Penitencia Ck. at Piedmont Ave.
5007 (Damaged) Coyote Creek at Coyote Ranch Road (Low Flow Only, 220 cfs Max)
5009 Coyote Ck below Anderson Reservoir
5010 Fisher Creek at Monterey Rd.
5012 Coyote Creek below Coyote Reservoir(USGS)
5013 Calero Creek below Calero Reservoir
5014 Almaden-Calero Canal at Calero Reservoir
5015 Almaden-Calero Canal at Almaden Reservoir
5016 Alamitos Creek below Almaden Reservoir
5017 Guadalupe Creek below Guadalupe Reservoir
5018 Golf Creek at McAbee Rd
5021 Ross Creek at Blossom Hill
5022 Canoas Creek at Dow Drive
5024 San Tomas Ck above Williams Rd
5025 Saratoga Creek at Pruneridge - High Flow Only
5026 Calabazas Creek at Wilcox School-High Flow Only
5031 Calabazas Creek at Rainbow Drive-High Flow Only
5032 Permanente Creek at Berry Ave- High Flow Only
5033 Hale Creek below Magdalena Court
5035 Stevens Creek above Hwy 85 near Central Ave
5039 Stevens Creek below Hwy 280(Flow Rating in Process)
5043 Guadalupe Creek off Hicks Rd.
5044 Stevens Creek below Stevens Creek Reservoir
5045 Stevens Ck. above Stevens Creek Reservoir (Subject to Swimmers Dams)
5047 Kirk Ditch at Head
5048 Alamitos Creek above Almaden Reservoir-Partial Inflow
5050 Los Gatos Creek at Lincoln Ave.
5051 Ross Creek at Cherry Ave
5052 Uvas Creek at Heritage Way (Spillway, tributary, and/or outlet flows)
5053 Upper Page Ditch at Head
5057 Packwood Creek at Jackson Ranch (Flow rating in process)
5058 Coyote Creek at Edenvale
5059 Los Gatos Creek at Lark Ave
5060 Uvas Ck at Miller Ave (100 cfs and below)
5061 Uvas Creek at Uvas Rd.- Partial Inflow
5062 Los Gatos Ck. above Lexington Res.-Partial Inflow-(Out for repair. Use Ryland dam)
5064 Berryessa Creek at Calaveras Blvd-High Flow Only
5065 Little Arthur Creek at Redwood Retreat Rd
5067 Los Gatos Creek below Lexington Reservoir (Low Flow only)
5069 Llagas Creek below Chesbro Reservoir
5070 Alamitos Ck at Graystone Lane
5072 Mabury Diversion- Low Flow Only (Vandalized)
5074 Sunnyvale East ab HWY 101 (High Flow Only)
5075 Thompson Creek at Quimby Rd.-High Flow Only
5077 Coyote Ck above Coyote Reservoir - USGS
5078 Bodfish Creek at Whitehurst Rd
5080 Llagas Creek above Chesbro Reservoir
5081 Pacheco Creek near Dunneville
5082 Coyote Ck at Madrone (USGS)
5083 Abandoned: Use Sensor ID 50831
5084 Uvas Creek below Uvas Reservoir (Gage may be affected by spillway flows, backwater)
5085 Llagas Creek at Southside Dr. - USGS
5086 Uvas Ck above W. Luchessa Ave -High flow only (100 cfs and above)
5087 Upper Penitencia Creek below Mabury (Vandalized)
5088 Guadalupe River at Alamitos Fish Ladder- Low Flow Only
5089 Coyote Ck below Coyote Perc. Pond-Low Flow Only
5090 Coyote Ck Perc. Pond-Stage Only
5092 Upper Silver Creek at Yerba Buena- High Flow Only
5096 Saratoga Creek at Saratoga - USGS
5097 Coyote Creek at Hwy 237 - USGS
5098 Coyote Creek at E. William- High Flow Only
5098 Coyote Creek at E. Williams
5101 Matadero Creek above Lambert Ave - High Flow Only
5103 El Camino Stormdrain- Stage Only
5103 El Camino Stormdrain Cell
5104 Alm-Cal Canal at Flume(Alarm Only)
5108 Guadalupe River at Montague Expressway- Stage Only
5108 Guadalupe River at Montague Expressway- Stage Only
5109 Guadalupe River at Highway 101 - USGS
5111 Guadalupe River at Gold Street-Stage Only
5113 Arroyo Hondo near San Jose
5114 Masson Fish Ladder- Low Flow Only
5116 Kirk Dam (Stage Only)
5117 West Little Llagas Creek at Edmundson Ave.-High Flow Only
5118 East Little Llagas at Church Ave-High Flow Only
5119 Los Gatos Creek below Kirk Dam-Low Flow Only
5120 Permanente Creek at Rancho San Antonio - High Flow Only
5120 Permanente Creek at Rancho San Antonio - High Flow Only
5121 W Permanente Ck below Deer - High Flow Only
5122 San Tomas at Mission Ave. - High Flow Only
5123 Coyote Ck. Above Ogier
5123 Coyote Ck. Below Ogier
5125 Adobe Creek at Foothill College
5126 San Tomas at Scott Blvd
5127 Coyote Ck. at Berryessa-Stage Only
5132 Coyote Creek at Hwy 85
5135 Adobe Creek below El Camino Real-High Flow Only
5136 Berryessa Creek at Old Piedmont Rd
5136 Abandoned: Use Sensor ID 51362
5137 Pond A8
5138 Guadalupe River at Alma Ave
5139 Llagas Creek below Santa Teresa Blvd
5140 Lake Silveira
5141 Llagas Creek below Lake Silveira
5142 Uvas at Hwy 152(Flow rating in process)
5143 North Fork Pacheco Creek above Pacheco Reservoir
5144 North Fork Pacheco Creek below Pacheco Reservoir
5145 Pacheco Creek near Bell Station
5147 Calero Ck above Calero Reservoir(Flow Rating in process)
5148 Guadalupe Ck. above Guadalupe Res.
5149 Sunnyvale East at Baylands Park - Stage Only
5150 Almendra Creek above Almendra Ave. - Stage Only
5154 West Llagas at Hwy 101
5155 Los Gatos Creek above Ryland Dam
5155 Pond A4
5156 W. Branch Llagas at Cohansey Ave
5159 Alviso Slough
5169 Coyote Creek Above Metcalf Rd
5170 Upper Page Ditch at Head (Batt V)
5199 Calero Creek above Calero Reservoir
50011 Upper Penitencia Ck. Abv Piedmont Ave. (replaced 5001)
50232 Guadalupe River above Almaden Expressway
50242 San Tomas Ck above Williams Rd
50831 Upper Penitencia at Dorel Radar
51001 Lower Penitencia Creek at Machado Ave - High Flow Only
51361 Berryessa Creek at Cropley Ave - High Flow Only - Radar
Starting Date & Time:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2024
2023
12:00:00 AM
01:00:00 AM
02:00:00 AM
03:00:00 AM
04:00:00 AM
05:00:00 AM
06:00:00 AM
07:00:00 AM
08:00:00 AM
09:00:00 AM
10:00:00 AM
11:00:00 AM
12:00:00 PM
01:00:00 PM
02:00:00 PM
03:00:00 PM
04:00:00 PM
05:00:00 PM
06:00:00 PM
07:00:00 PM
08:00:00 PM
09:00:00 PM
10:00:00 PM
11:00:00 PM
11:59:59 PM
Ending Date & Time:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2024
2023
12:00:00 AM
01:00:00 AM
02:00:00 AM
03:00:00 AM
04:00:00 AM
05:00:00 AM
06:00:00 AM
07:00:00 AM
08:00:00 AM
09:00:00 AM
10:00:00 AM
11:00:00 AM
12:00:00 PM
01:00:00 PM
02:00:00 PM
03:00:00 PM
04:00:00 PM
05:00:00 PM
06:00:00 PM
07:00:00 PM
08:00:00 PM
09:00:00 PM
10:00:00 PM
11:00:00 PM
11:59:59 PM
Time Interval:
All Data
1 Hour
3 Hours
6 Hours
12 Hours
24 Hours
Historical Plot For Single Sensor
Select a Sensor:
5001 Upper Penitencia Ck. at Piedmont Ave.
5007 (Damaged) Coyote Creek at Coyote Ranch Road (Low Flow Only, 220 cfs Max)
5009 Coyote Ck below Anderson Reservoir
5010 Fisher Creek at Monterey Rd.
5012 Coyote Creek below Coyote Reservoir(USGS)
5013 Calero Creek below Calero Reservoir
5014 Almaden-Calero Canal at Calero Reservoir
5015 Almaden-Calero Canal at Almaden Reservoir
5016 Alamitos Creek below Almaden Reservoir
5017 Guadalupe Creek below Guadalupe Reservoir
5018 Golf Creek at McAbee Rd
5021 Ross Creek at Blossom Hill
5022 Canoas Creek at Dow Drive
5024 San Tomas Ck above Williams Rd
5025 Saratoga Creek at Pruneridge - High Flow Only
5026 Calabazas Creek at Wilcox School-High Flow Only
5031 Calabazas Creek at Rainbow Drive-High Flow Only
5032 Permanente Creek at Berry Ave- High Flow Only
5033 Hale Creek below Magdalena Court
5035 Stevens Creek above Hwy 85 near Central Ave
5039 Stevens Creek below Hwy 280(Flow Rating in Process)
5043 Guadalupe Creek off Hicks Rd.
5044 Stevens Creek below Stevens Creek Reservoir
5045 Stevens Ck. above Stevens Creek Reservoir (Subject to Swimmers Dams)
5047 Kirk Ditch at Head
5048 Alamitos Creek above Almaden Reservoir-Partial Inflow
5050 Los Gatos Creek at Lincoln Ave.
5051 Ross Creek at Cherry Ave
5052 Uvas Creek at Heritage Way (Spillway, tributary, and/or outlet flows)
5053 Upper Page Ditch at Head
5057 Packwood Creek at Jackson Ranch (Flow rating in process)
5058 Coyote Creek at Edenvale
5059 Los Gatos Creek at Lark Ave
5060 Uvas Ck at Miller Ave (100 cfs and below)
5061 Uvas Creek at Uvas Rd.- Partial Inflow
5062 Los Gatos Ck. above Lexington Res.-Partial Inflow-(Out for repair. Use Ryland dam)
5064 Berryessa Creek at Calaveras Blvd-High Flow Only
5065 Little Arthur Creek at Redwood Retreat Rd
5067 Los Gatos Creek below Lexington Reservoir (Low Flow only)
5069 Llagas Creek below Chesbro Reservoir
5070 Alamitos Ck at Graystone Lane
5072 Mabury Diversion- Low Flow Only (Vandalized)
5074 Sunnyvale East ab HWY 101 (High Flow Only)
5075 Thompson Creek at Quimby Rd.-High Flow Only
5077 Coyote Ck above Coyote Reservoir - USGS
5078 Bodfish Creek at Whitehurst Rd
5080 Llagas Creek above Chesbro Reservoir
5081 Pacheco Creek near Dunneville
5082 Coyote Ck at Madrone (USGS)
5083 Abandoned: Use Sensor ID 50831
5084 Uvas Creek below Uvas Reservoir (Gage may be affected by spillway flows, backwater)
5085 Llagas Creek at Southside Dr. - USGS
5086 Uvas Ck above W. Luchessa Ave -High flow only (100 cfs and above)
5087 Upper Penitencia Creek below Mabury (Vandalized)
5088 Guadalupe River at Alamitos Fish Ladder- Low Flow Only
5089 Coyote Ck below Coyote Perc. Pond-Low Flow Only
5090 Coyote Ck Perc. Pond-Stage Only
5092 Upper Silver Creek at Yerba Buena- High Flow Only
5096 Saratoga Creek at Saratoga - USGS
5097 Coyote Creek at Hwy 237 - USGS
5098 Coyote Creek at E. William- High Flow Only
5098 Coyote Creek at E. Williams
5101 Matadero Creek above Lambert Ave - High Flow Only
5103 El Camino Stormdrain- Stage Only
5103 El Camino Stormdrain Cell
5104 Alm-Cal Canal at Flume(Alarm Only)
5108 Guadalupe River at Montague Expressway- Stage Only
5108 Guadalupe River at Montague Expressway- Stage Only
5109 Guadalupe River at Highway 101 - USGS
5111 Guadalupe River at Gold Street-Stage Only
5113 Arroyo Hondo near San Jose
5114 Masson Fish Ladder- Low Flow Only
5116 Kirk Dam (Stage Only)
5117 West Little Llagas Creek at Edmundson Ave.-High Flow Only
5118 East Little Llagas at Church Ave-High Flow Only
5119 Los Gatos Creek below Kirk Dam-Low Flow Only
5120 Permanente Creek at Rancho San Antonio - High Flow Only
5120 Permanente Creek at Rancho San Antonio - High Flow Only
5121 W Permanente Ck below Deer - High Flow Only
5122 San Tomas at Mission Ave. - High Flow Only
5123 Coyote Ck. Above Ogier
5123 Coyote Ck. Below Ogier
5125 Adobe Creek at Foothill College
5126 San Tomas at Scott Blvd
5127 Coyote Ck. at Berryessa-Stage Only
5132 Coyote Creek at Hwy 85
5135 Adobe Creek below El Camino Real-High Flow Only
5136 Berryessa Creek at Old Piedmont Rd
5136 Abandoned: Use Sensor ID 51362
5137 Pond A8
5138 Guadalupe River at Alma Ave
5139 Llagas Creek below Santa Teresa Blvd
5140 Lake Silveira
5141 Llagas Creek below Lake Silveira
5142 Uvas at Hwy 152(Flow rating in process)
5143 North Fork Pacheco Creek above Pacheco Reservoir
5144 North Fork Pacheco Creek below Pacheco Reservoir
5145 Pacheco Creek near Bell Station
5147 Calero Ck above Calero Reservoir(Flow Rating in process)
5148 Guadalupe Ck. above Guadalupe Res.
5149 Sunnyvale East at Baylands Park - Stage Only
5150 Almendra Creek above Almendra Ave. - Stage Only
5154 West Llagas at Hwy 101
5155 Los Gatos Creek above Ryland Dam
5155 Pond A4
5156 W. Branch Llagas at Cohansey Ave
5159 Alviso Slough
5169 Coyote Creek Above Metcalf Rd
5170 Upper Page Ditch at Head (Batt V)
5199 Calero Creek above Calero Reservoir
50011 Upper Penitencia Ck. Abv Piedmont Ave. (replaced 5001)
50232 Guadalupe River above Almaden Expressway
50242 San Tomas Ck above Williams Rd
50831 Upper Penitencia at Dorel Radar
51001 Lower Penitencia Creek at Machado Ave - High Flow Only
51361 Berryessa Creek at Cropley Ave - High Flow Only - Radar
Starting Date & Time:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2024
2023
12:00:00 AM
01:00:00 AM
02:00:00 AM
03:00:00 AM
04:00:00 AM
05:00:00 AM
06:00:00 AM
07:00:00 AM
08:00:00 AM
09:00:00 AM
10:00:00 AM
11:00:00 AM
12:00:00 PM
01:00:00 PM
02:00:00 PM
03:00:00 PM
04:00:00 PM
05:00:00 PM
06:00:00 PM
07:00:00 PM
08:00:00 PM
09:00:00 PM
10:00:00 PM
11:00:00 PM
11:59:59 PM
Ending Date & Time:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2024
2023
12:00:00 AM
01:00:00 AM
02:00:00 AM
03:00:00 AM
04:00:00 AM
05:00:00 AM
06:00:00 AM
07:00:00 AM
08:00:00 AM
09:00:00 AM
10:00:00 AM
11:00:00 AM
12:00:00 PM
01:00:00 PM
02:00:00 PM
03:00:00 PM
04:00:00 PM
05:00:00 PM
06:00:00 PM
07:00:00 PM
08:00:00 PM
09:00:00 PM
10:00:00 PM
11:00:00 PM
11:59:59 PM
