Report Generated 05/01/2018 at 0710

Page Description

1 - Mean Daily Water Temperature, Release Flow Rates and Air Temperatures with Monthly Averages

2 - Redding 10-Day Forecasted Air Temperatures

3 - Sacramento River Mean Daily Water Temperature, Air Temperature and 10-Day Forecasted Air Temperature Plot

- Water Temperature Measuring Station Details

- Temperature Control Point Details

4 - Daily Maximum and 7DADM 

5 - Shasta Lake Isothermobaths Plot

6 - Trinity Lake Isothermobaths Plot

7 - Whiskeytown Lake Isothermobaths Plot

x - TCD Configuration (External Link)

All Data in this Report is Preliminary and Subject to Change

Northern CVP Water Temperature Report

April - 2018
1

Shasta 

Generation 

Spring Creek 

P.P.

Keswick 

Total BSF RDB LWS

Mar 2702 152 3087 51.1 52.5 43.8

04/01 50.2 49.5 48.6 51.3 51.9 53.0 55.2 56.3 56.7 57.6 50.1 50.0 - 2046 679 3044 62.5 62.0 64.3 54.0

04/02 51.1 50.6 49.0 51.6 52.2 53.4 55.8 56.9 57.4 58.3 50.4 50.4 - 2533 50 3045 62.5 61.8 64.0 54.4

04/03 51.2 50.1 48.9 51.4 52.0 53.0 54.8 55.8 56.3 57.8 49.4 50.1 - 3027 17 3045 61.5 56.6 61.1 51.0

04/04 51.1 49.7 48.2 51.5 51.8 52.8 55.1 56.2 56.7 57.7 50.0 50.9 - 2960 131 3043 65.5 63.0 65.3 57.3

04/05 51.0 50.2 48.8 51.5 51.7 52.3 54.0 55.2 55.7 56.9 49.5 50.6 - 3131 36 3046 56.5 57.1 57.5 50.6

04/06 51.0 50.0 48.8 51.5 51.8 52.1 53.5 53.8 54.3 55.0 50.1 50.1 - 2766 16 3044 53.5 53.4 55.2 49.0

04/07 50.6 50.0 48.4 51.4 53.8 54.0 56.6 56.5 56.3 57.0 52.8 50.9 - 1892 490 3045 59.5 61.0 61.4 51.7

04/08 50.5 49.6 48.9 51.3 52.3 53.3 54.7 55.2 55.4 56.7 50.5 51.3 - 1612 1306 3043 58.0 56.1 57.0 50.5

04/09 51.4 ? 51.0 48.6 51.3 52.2 53.2 55.0 55.7 55.8 56.5 51.0 51.2 - 2231 337 3045 64.0 59.9 62.0 54.7

04/10 50.6 49.4 48.8 51.5 52.1 53.1 55.6 56.6 56.7 57.3 51.2 51.6 - 2594 48 2963 63.0 61.0 61.7 54.8

04/11 50.6 49.7 48.8 51.7 51.6 52.2 53.9 54.8 55.2 56.2 49.7 49.9 - 2542 14 3043 49.5 53.3 52.7 43.5

04/12 50.6 49.5 48.8 51.5 51.8 52.1 51.9 52.4 ? 52.5 53.5 48.7 49.8 - 3066 14 3044 48.5 48.6 50.5 42.7

04/13 51.3 50.5 48.9 51.1 51.8 52.7 52.9 53.3 53.3 53.9 49.6 50.6 - 2905 18 3050 55.0 53.0 54.5 46.8

04/14 51.0 49.9 49.0 51.1 51.9 53.2 55.0 55.8 55.9 56.1 50.9 51.5 - 3061 15 3094 59.5 58.5 60.1 53.3

04/15 50.9 50.2 49.0 51.3 51.2 51.9 54.4 55.9 56.4 57.1 49.6 50.7 - 2606 14 3096 52.0 56.5 57.8 44.8

04/16 50.9 50.3 48.6 51.4 51.6 51.9 52.3 52.9 53.0 54.2 48.8 51.0 - 2637 92 3097 50.5 49.9 49.6 42.6

04/17 51.2 50.6 49.1 51.2 51.8 52.5 52.7 53.3 53.5 54.2 49.5 50.8 - 2890 14 3140 49.0 48.3 49.8 43.6

04/18 51.6 50.2 49.1 51.1 51.4 52.3 53.4 53.8 53.9 54.5 49.4 49.7 - 2611 14 3173 53.0 51.3 51.8 46.3

04/19 52.0 51.1 49.2 51.6 52.0 52.9 53.5 54.2 54.4 54.9 50.5 49.3 - 3096 14 3175 ↓ 56.5 54.4 56.3 48.5

04/20 52.2 51.1 49.3 51.9 52.7 53.8 55.6 56.4 56.6 57.1 51.2 49.4 - 3419 14 3522 64.0 61.9 63.0 54.7

04/21 51.7 50.7 49.4 52.4 53.2 54.3 56.6 58.0 58.3 59.2 52.0 50.1 - 3558 14 3732 66.0 64.2 65.9 58.5

04/22 51.1 50.6 49.4 52.9 53.6 54.7 57.3 58.8 59.2 60.3 51.9 50.5 - 3079 14 3727 68.0 64.4 65.5 57.1

04/23 50.5 49.4 49.5 53.2 53.9 55.0 57.6 59.1 59.5 60.7 51.9 50.8 - 3628 14 4278 ↑ 71.5 66.7 68.6 58.6

04/24 50.9 50.2 49.5 52.5 53.3 54.4 57.2 58.9 59.4 60.9 51.8 50.6 - 4180 62 4930 68.0 65.3 67.2 60.1

04/25 50.5 49.6 49.5 51.7 52.6 53.6 56.6 58.4 59.0 60.7 52.5 50.6 - 5320 14 5473 69.0 66.6 68.8 62.5

04/26 50.7 49.7 48.8 51.5 52.3 53.3 56.2 58.1 58.6 60.3 52.6 50.5 - 5399 185 5698 67.0 65.0 66.8 62.3

04/27 50.9 ? 49.7 49.7 51.4 51.7 52.3 54.9 56.9 57.6 59.0 51.2 50.3 - 5550 14 6117 59.5 57.4 58.3 52.6

04/28 50.5 49.5 49.5 51.0 51.3 51.8 53.5 54.8 55.3 56.7 50.9 49.9 - 5928 20 6113 55.5 53.1 55.6 48.2

04/29 50.4 49.4 48.9 50.9 51.4 52.0 53.7 54.8 54.9 55.8 51.3 49.7 - 6138 193 6569 57.0 56.4 58.1 50.7

04/30 50.5 49.6 49.0 50.5 51.1 51.8 53.9 55.3 55.6 56.9 51.7 49.6 - 6285 259 6652 60.0 58.8 60.5 51.1

-

Apr 3423 137 3836 58.2 59.7 51.9

102690 4122 115086

Legend Notes 203681 8176 228268

? = 1-9 hours of data missing (Average includes estimations) 1 Temperatures are weighted averages based on individual penstock flow and temperature

! = 10 or more hours of data missing (Average not calculated) Highlighted cells in the TCD column indicate a TCD change was made on that day

# = Station out of service 2 Current control point (see page 3 for more details)

↑ = Record high air temperature 3 Column not used this month

↓ = Record low air temperature

 = Monthly Averages

53.0

D

A

T

E

Mean Daily Water Temperatures (°F) Mean Daily 

Release (CFS)

49.7 48.9 47.6 -

TCD SAC CCR JLF 1 SHD SPP1 KWK BSF2

51.0 50.1 49.0 51.5 52.1

47.9 49.4 49.6 50.2 50.7 51.1

Mean Daily 

Air Temperatures (°F)

51.3 51.7

59.5

RDD

-

52.5

BND

54.8 56.1 57.1

Total AF

RDB

Total CFS

IGO -----

50.7 50.4

LWS

46.8

55.8

3
2

↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg

04/01 48 79 63.5 49 78 63.5 48 74 61.0 43 77 60.0 48 76 62.0 50 68 59.0 52 68 60.0 50 69 59.5 45 73 59.0 46 80 63.0 45 75 60.0 49 75 62.0

04/02 45 80 62.5 53 73 63.0 42 76 59.0 49 74 61.5 49 68 58.5 51 65 58.0 52 69 60.5 46 70 58.0 46 70 58.0 49 65 57.0 44 69 56.5 48 72 60.0

04/03 51 74 62.5 47 76 61.5 49 76 62.5 51 68 59.5 51 63 57.0 53 66 59.5 45 68 56.5 45 72 58.5 50 69 59.5 47 76 61.5 47 71 59.0 50 74 62.0

04/04 47 76 61.5 55 76 65.5 51 65 58.0 51 63 57.0 52 65 58.5 45 68 56.5 45 74 59.5 48 68 58.0 43 65 54.0 47 66 56.5 46 71 58.5 49 75 62.0

04/05 54 77 65.5 53 64 58.5 50 62 56.0 52 66 59.0 44 70 57.0 43 75 59.0 48 64 56.0 44 66 55.0 43 64 53.5 43 65 54.0 46 73 59.5 48 71 59.5

04/06 51 62 56.5 51 60 55.5 52 65 58.5 44 72 58.0 46 82 64.0 50 68 59.0 46 65 55.5 41 63 52.0 43 69 56.0 48 73 60.5 46 72 59.0 47 72 59.5

04/07 51 56 53.5 56 65 60.5 45 68 56.5 46 83 64.5 52 71 61.5 48 65 56.5 41 60 50.5 40 71 55.5 44 68 56.0 46 70 58.0 47 70 58.5 47 76 61.5

04/08 50 69 59.5 49 70 59.5 46 81 63.5 51 70 60.5 48 64 56.0 40 61 50.5 39 70 54.5 44 70 57.0 49 74 61.5 46 69 57.5 46 73 59.5 48 72 60.0

04/09 48 68 58.0 50 82 66.0 55 66 60.5 48 61 54.5 39 58 48.5 39 72 55.5 46 74 60.0 48 72 60.0 44 72 58.0 46 79 62.5 48 82 65.0 53 79 66.0

04/10 48 80 64.0 57 66 61.5 47 59 53.0 39 59 49.0 38 72 55.0 45 74 59.5 48 68 58.0 43 64 53.5 41 65 53.0 46 67 56.5 46 78 62.0 51 76 63.5

04/11 57 69 63.0 52 59 55.5 37 60 48.5 38 72 55.0 46 74 60.0 47 61 54.0 41 60 50.5 38 62 50.0 43 70 56.5 47 74 60.5 49 79 64.0 53 77 65.0

04/12 40 59 49.5 37 60 48.5 38 72 55.0 46 74 60.0 48 65 56.5 42 56 49.0 38 60 49.0 42 62 52.0 47 73 60.0 48 77 62.5 51 79 65.0 50 77 63.5

04/13 36 61 48.5 39 72 55.5 47 74 60.5 48 63 55.5 40 56 48.0 37 61 49.0 42 62 52.0 43 68 55.5 48 77 62.5 50 83 66.5 52 82 67.0 52 81 66.5

04/14 37 73 55.0 45 75 60.0 49 60 54.5 40 57 48.5 36 62 49.0 41 65 53.0 42 70 56.0 44 75 59.5 49 76 62.5 48 75 61.5 49 77 63.0 51 78 64.5

04/15 45 74 59.5 41 59 50.0 40 57 48.5 34 63 48.5 41 65 53.0 41 72 56.5 45 78 61.5 48 79 63.5 52 80 66.0 50 82 66.0 52 82 67.0 53 82 67.5

04/16 41 63 52.0 44 57 50.5 35 63 49.0 42 64 53.0 40 73 56.5 46 80 63.0 49 82 65.5 51 82 66.5 55 84 69.5 52 83 67.5 51 80 65.5 52 78 65.0

04/17 43 58 50.5 36 64 50.0 43 64 53.5 41 73 57.0 46 81 63.5 51 83 67.0 50 83 66.5 53 82 67.5 54 81 67.5 51 82 66.5 52 87 69.5 56 85 70.5

04/18 35 63 49.0 45 63 54.0 41 74 57.5 49 81 65.0 51 85 68.0 53 84 68.5 53 85 69.0 53 81 67.0 55 87 71.0 55 85 70.0 56 83 69.5 52 76 64.0

04/19 43 63 53.0 40 74 57.0 48 82 65.0 51 87 69.0 53 83 68.0 54 86 70.0 54 82 68.0 54 83 68.5 54 82 68.0 50 79 64.5 48 82 65.0 53 80 66.5

04/20 39 74 56.5 48 82 65.0 50 85 67.5 54 84 69.0 54 86 70.0 54 84 69.0 53 85 69.0 54 82 68.0 52 75 63.5 48 81 64.5 51 83 67.0 54 80 67.0

04/21 46 82 64.0 46 85 65.5 51 83 67.0 52 87 69.5 55 89 72.0 56 89 72.5 55 87 71.0 54 79 66.5 51 77 64.0 49 81 65.0 52 84 68.0 55 81 68.0

04/22 46 86 66.0 50 84 67.0 54 87 70.5 56 89 72.5 57 87 72.0 54 84 69.0 51 76 63.5 49 72 60.5 49 73 61.0 50 80 65.0 54 82 68.0 55 80 67.5

04/23 50 86 68.0 65 89 77.0 55 88 71.5 56 89 72.5 54 85 69.5 50 72 61.0 47 71 59.0 47 74 60.5 48 75 61.5 50 83 66.5 53 84 68.5 52 82 67.0

04/24 55 88 71.5 50 87 68.5 55 88 71.5 54 83 68.5 49 71 60.0 48 68 58.0 48 68 58.0 47 72 59.5 51 80 65.5 53 85 69.0 55 86 70.5 56 84 70.0

04/25 50 86 68.0 52 88 70.0 54 84 69.0 50 70 60.0 47 68 57.5 47 69 58.0 48 76 62.0 49 85 67.0 55 86 70.5 56 86 71.0 57 86 71.5 57 85 71.0

04/26 51 87 69.0 53 83 68.0 50 69 59.5 47 67 57.0 48 70 59.0 46 76 61.0 48 82 65.0 52 87 69.5 55 85 70.0 56 86 71.0 55 83 69.0 55 80 67.5

04/27 51 83 67.0 51 69 60.0 47 64 55.5 46 67 56.5 45 73 59.0 47 80 63.5 51 84 67.5 53 85 69.0 56 85 70.5 55 87 71.0 55 83 69.0 56 84 70.0

04/28 51 68 59.5 51 63 57.0 46 68 57.0 45 73 59.0 46 79 62.5 49 84 66.5 52 84 68.0 55 85 70.0 56 88 72.0 58 91 74.5 58 90 74.0 58 86 72.0

04/29 50 61 55.5 48 68 58.0 46 73 59.5 48 80 64.0 49 84 66.5 52 84 68.0 54 85 69.5 57 86 71.5 58 90 74.0 58 87 72.5 57 87 72.0 58 86 72.0

04/30 47 67 57.0 47 72 59.5 47 81 64.0 49 84 66.5 51 85 68.0 53 85 69.0 54 84 69.0 53 86 69.5 57 89 73.0 57 92 74.5 57 89 73.0 60 88 74.0

- 74

Web Links Legend

10-Day Min/Max Forecast NR = Forecasted temperatures not recorded

Previous Days Min/Max Actuals 100 = Previous day actual temperatures in red and bolded indicate a record temperature for that date

9 Days 10 Days

Redding (RDD) Daily Air Temperatures (°F)

8 Days

D

A

T

E

Forecasted

4 Days 5 Days 6 Days

Actual

Previous Day Current Day 1 Day 2 Days 3 Days 7 Days
3

Code Body of Water Location1 CDEC Link Point Temp. (°F) Date Range

TCD N/A Shasta Power Plant N/A BSF 56.0 06/01/17 - Current

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here

SPP N/A Spring Creek Power Plant N/A

KWK Sacramento River 0.8 miles downstream of Keswick Dam Click Here

SAC Sacramento River 4.8 miles downstream of Keswick Dam Click Here

CCR Sacramento River 9.7 miles downstream of Keswick Dam Click Here

BSF Sacramento River 25 miles downstream of Keswick Dam Click Here

JLF Sacramento River 34 miles downstream of Keswick Dam Click Here

BND Sacramento River 41 miles downstream of Keswick Dam Click Here

RDB Sacramento River 58 miles downstream of Keswick Dam Click Here Notes

IGO Clear Creek 7.3 miles downstream of Whiskeytown Dam Click Here

LWS Trinity River 1.1 miles downstream of Lewiston Dam Click Here 1 Distances are approximate

DGC2 Trinity River 19 miles downstream of Lewiston Dam Click Here 2 DGC is only reported in September

NFH3 Trinity River 38 miles downstream of Lewiston Dam Click Here 3 NFH is only reported in October, November and December

Station Details Temperature Control Point

40

45

50

55

60

65

70

75

80

50

51

52

53

54

55

56

57

58

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

Air Temperature (°F)

Water Temperature (°F)

Mean Daily Temperatures

TCD KWK SAC CCR BSF RDD (Air)
4

04/01 54.2 55.8 52.7 54.3 55.2

04/02 54.1 55.8 53.1 54.8 55.8

04/03 53.8 55.5 53.4 55.0 54.8

04/04 53.2 54.4 53.5 55.0 55.1

04/05 52.3 52.9 53.4 54.8 54.0

04/06 52.6 52.7 53.4 54.6 53.5

04/07 55.4 56.4 53.7 54.8 56.6

04/08 54.7 56.0 53.7 54.8 54.7

04/09 54.4 55.8 53.8 54.8 55.0

04/10 53.8 54.7 53.8 54.7 55.6

04/11 52.3 53.3 53.6 54.5 53.9

04/12 53.5 54.5 53.8 54.8 51.9

04/13 54.0 55.6 54.0 55.2 52.9

04/14 54.1 56.1 53.8 55.1 55.0

04/15 51.7 53.5 53.4 54.8 54.4

04/16 52.7 53.7 53.2 54.5 52.3

04/17 54.0 55.2 53.2 54.6 52.7

04/18 52.9 53.9 53.3 54.6 53.4

04/19 54.3 56.3 53.4 54.9 53.5

04/20 54.9 56.8 53.5 55.1 55.6

04/21 55.6 57.4 53.7 55.3 56.6

04/22 56.0 57.8 54.3 55.9 57.3

04/23 56.2 57.9 54.8 56.5 57.6

04/24 55.1 56.6 55.0 56.7 57.2

04/25 54.5 56.0 55.2 57.0 56.6

04/26 54.3 55.9 55.2 56.9 56.2

04/27 52.8 54.0 54.9 56.5 54.9

04/28 52.1 52.7 54.4 55.8 53.5

04/29 53.2 54.1 54.0 55.3 53.7

04/30 52.7 54.2 53.5 54.8 53.9 -

Notes12

DAT

D

2

ATE SAC CCR SAC

7DADM

1 Daily Max

CCR

7DADM = 7-Day Average 

Daily Maximum

DAT = Daily Average 

Temperature

BSF

55

60

65

70

75

80

85

90

51

52

53

54

55

56

57

58

13579 11 13 15 17 19 21 23 25 27 29

Air Temperature (°F)

Water Temperature (°F)

Daily Maximum

SAC CCR RDD (Air)

51

52

53

54

55

56

57

58

13579 11 13 15 17 19 21 23 25 27 291

Water Temperature (°F)

7DADM
5

Latest Profile Date: 04/17/2018

0

300

600

900

1200

1500

1800

2100

2400

2700

3000

3300

3600

3900

4200

4500

1-Jan 1-Feb 1-Mar 1-Apr 1-May 1-Jun 1-Jul 1-Aug 1-Sep 1-Oct 1-Nov 1-Dec

Storage, in TAF

Shasta Lake Isothermobaths - 2018

(Water Temperature, in °F)

Total Daily Storage
6

Latest Profile Date: 04/04/2018

0

200

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

1-Jan 1-Feb 1-Mar 1-Apr 1-May 1-Jun 1-Jul 1-Aug 1-Sep 1-Oct 1-Nov 1-Dec

Storage, in TAF

Trinity Lake Isothermobaths - 2018

(Water Temperature, in °F)

Total Daily Storage
7

Latest Profile Date: 04/03/2018

0

20

40

60

80

100

120

140

160

180

200

220

240

260

280

300

1-Jan 1-Feb 1-Mar 1-Apr 1-May 1-Jun 1-Jul 1-Aug 1-Sep 1-Oct 1-Nov 1-Dec

Storage, in TAF

Whiskeytown Lake Isothermobaths - 2018

(Water Temperature, in °F)

Total Daily Storage