Report Generated 05/06/2019 at 1031

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 - 2019
Shasta 

Generation 

Spring Creek 

P.P.

Keswick 

Total BSF RDB LWS

Mar 13154 2002 24947 51.3 52.6 -

04/01 50.8 # - 47.3 49.3 49.6 49.8 51.1 52.1 52.6 52.9 50.9 50.2 - 13113 1367 14931 60.0 58.0 59.8 -

04/02 50.0 # - 47.8 49.0 49.3 49.5 50.9 51.7 52.1 52.3 50.6 50.2 - 16762 2872 14957 56.5 55.0 56.3 -

04/03 49.2 48.6 47.8 48.9 49.3 49.3 51.1 52.1 52.4 52.5 50.8 50.5 - 16408 1472 17635 58.0 56.3 57.0 -

04/04 49.1 48.5 47.7 48.7 48.9 48.9 50.3 51.2 51.6 52.1 50.6 50.3 - 18860 1613 26364 58.5 57.5 57.6 -

04/05 48.5 47.8 48.0 48.1 48.5 48.3 49.5 50.3 50.7 51.2 ? 50.3 50.5 - 18792 2735 29893 57.5 56.5 55.8 -

04/06 48.5 47.9 48.1 47.9 48.3 48.1 49.4 50.1 50.5 50.7 ? 50.8 50.3 - 18888 2880 30220 58.5 58.0 58.2 -

04/07 48.8 48.1 48.0 48.1 48.3 48.2 49.5 50.4 50.7 51.5 51.8 51.2 - 18826 1553 29903 63.0 63.2 63.6 -

04/08 49.2 48.4 48.2 48.4 48.8 48.6 50.2 50.8 51.0 51.8 52.6 51.2 - 19124 1134 30762 60.0 63.0 64.6 -

04/09 49.7 48.8 48.9 48.6 48.8 48.8 51.0 51.8 52.2 52.4 51.6 50.8 - 18927 1794 35669 59.5 56.5 59.9 -

04/10 50.3 49.2 48.5 49.0 49.1 49.1 50.0 50.6 50.9 51.2 50.9 51.3 - 18854 1166 39956 58.0 57.6 59.3 -

04/11 50.4 49.3 49.2 49.1 49.1 49.1 50.1 50.7 51.0 51.2 50.9 51.1 - 18990 781 40139 58.0 56.9 58.5 -

04/12 50.6 49.5 49.2 49.2 49.3 49.3 50.2 50.8 51.1 51.4 51.4 51.9 - 18992 797 39664 60.5 59.3 60.6 -

04/13 50.8 49.7 48.6 49.5 49.6 49.6 50.6 51.3 51.6 52.1 52.1 52.3 - 18870 425 39749 63.5 60.0 60.9 -

04/14 50.5 49.4 49.1 49.3 49.3 49.4 50.4 51.3 51.6 52.0 ? 51.9 52.3 - 19047 152 34602 62.0 60.6 60.0 -

04/15 50.5 49.5 49.1 49.1 49.1 49.1 49.9 50.6 50.9 50.9 ! - 51.9 - 18982 227 29602 53.5 53.2 53.8 -

04/16 50.7 49.9 48.5 49.6 49.8 49.8 50.7 51.3 51.5 51.6 51.3 49.7 - 18929 427 24956 58.0 55.4 56.8 -

04/17 51.3 50.7 49.3 50.3 50.5 50.6 51.7 52.5 52.8 53.2 52.6 47.7 - 18512 233 21027 64.0 61.2 61.6 -

04/18 51.6 ? 51.1 49.1 51.1 51.4 51.5 53.0 54.0 54.3 54.6 54.3 46.6 - 17113 184 18127 67.0 65.1 65.5 -

04/19 51.7 ? 51.6 49.3 51.3 51.7 51.9 53.7 55.1 55.4 55.9 55.0 46.5 - 14251 302 15494 67.5 66.3 67.8 -

04/20 51.7 ? 51.8 49.8 51.2 51.4 51.7 53.5 55.0 55.6 56.2 53.8 46.8 - 13715 106 13105 62.5 63.6 63.3 -

04/21 52.3 ? 51.4 49.6 51.3 51.6 51.9 53.5 54.5 54.7 55.2 53.1 47.2 - 11197 77 11159 64.0 61.5 63.1 -

04/22 52.3 ? 50.8 49.4 52.1 52.6 52.9 54.6 55.7 56.1 56.4 53.9 47.4 - 9765 128 9561 70.0 67.5 70.0 -

04/23 52.2 50.7 49.4 52.4 ? 53.1 53.5 55.8 57.2 57.6 58.2 55.5 47.6 - 7881 147 8202 ↑ 78.0 73.2 76.3 -

04/24 51.9 50.5 49.5 52.4 53.3 54.0 56.8 58.7 59.1 59.8 56.3 47.8 - 7155 236 7019 76.5 72.0 74.8 -

04/25 51.5 50.0 49.6 52.6 53.7 54.3 57.4 59.4 60.0 60.9 56.5 48.2 - 5884 146 6107 74.5 71.8 74.0 -

04/26 51.7 50.6 49.9 52.5 ? 53.6 54.2 57.6 59.7 60.4 61.5 55.4 48.4 - 5163 135 5873 72.5 70.5 72.6 -

04/27 52.0 50.3 49.9 52.4 53.6 54.0 57.2 59.0 59.7 60.8 55.2 48.5 - 4995 123 5612 73.5 68.0 70.6 -

04/28 52.5 50.6 50.3 52.7 53.6 54.1 57.2 59.1 59.8 60.7 55.1 48.6 - 5465 88 5488 70.5 68.7 69.9 -

04/29 52.3 50.9 50.2 52.5 53.5 54.1 57.0 58.7 59.4 60.3 54.5 48.9 - 4766 106 5452 74.0 67.9 69.8 -

04/30 52.1 50.1 50.4 53.2 53.8 54.4 56.9 58.4 59.0 59.8 53.5 46.7 - 5458 85 5463 61.5 62.0 62.9 -

-

Apr 14123 783 20556 62.2 63.5 -

423684 23491 616691

Legend Notes 840360 46593 1223181

? = 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 4 SHD data collected via HOBO data logger due to damage of long term station

 = Monthly Averages

50.9

D

A

T

E

Mean Daily Water Temperatures (°F) Mean Daily 

Release (CFS)

49.2 48.6 -

TCD SAC CCR JLF 1 SHD4 SPP1 KWK BSF2

50.8 49.8 49.0 50.3 50.8

46.8 48.2 48.6 48.6 49.3 49.7

Mean Daily 

Air Temperatures (°F)

50.4 50.2

64.0

RDD

-

52.9

BND

52.7 54.2 54.7

Total AF

RDB

Total CFS

IGO -----

52.9 49.4

LWS

46.3

53.8

3

1
↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg

04/01 42 77 59.5 57 67 62.0 51 63 57.0 48 65 56.5 50 61 55.5 49 59 54.0 48 63 55.5 47 69 58.0 50 76 63.0 52 80 66.0 47 74 60.5 48 76 62.0

04/02 53 67 60.0 52 63 57.5 49 65 57.0 49 61 55.0 49 59 54.0 46 60 53.0 47 67 57.0 48 72 60.0 53 81 67.0 53 81 67.0 47 79 63.0 48 74 61.0

04/03 52 61 56.5 53 65 59.0 49 61 55.0 49 58 53.5 45 59 52.0 49 69 59.0 49 72 60.5 49 71 60.0 47 70 58.5 46 68 57.0 47 71 59.0 47 75 61.0

04/04 53 63 58.0 54 62 58.0 50 60 55.0 46 61 53.5 50 70 60.0 52 71 61.5 49 71 60.0 44 70 57.0 48 74 61.0 48 75 61.5 50 76 63.0 48 73 60.5

04/05 53 64 58.5 54 61 57.5 48 61 54.5 50 69 59.5 54 68 61.0 47 69 58.0 44 69 56.5 44 66 55.0 50 73 61.5 48 70 59.0 48 71 59.5 50 76 63.0

04/06 53 62 57.5 54 61 57.5 52 69 60.5 56 68 62.0 48 69 58.5 44 69 56.5 44 66 55.0 44 69 56.5 47 62 54.5 45 70 57.5 47 73 60.0 50 77 63.5

04/07 54 63 58.5 59 71 65.0 56 69 62.5 47 69 58.0 44 70 57.0 44 66 55.0 45 70 57.5 46 69 57.5 49 75 62.0 50 73 61.5 47 72 59.5 48 74 61.0

04/08 58 68 63.0 60 68 64.0 47 68 57.5 44 72 58.0 47 68 57.5 47 72 59.5 48 74 61.0 50 68 59.0 47 69 58.0 46 75 60.5 48 82 65.0 54 81 67.5

04/09 53 67 60.0 51 67 59.0 45 72 58.5 48 68 58.0 46 73 59.5 47 74 60.5 50 68 59.0 47 65 56.0 47 71 59.0 48 79 63.5 47 79 63.0 51 79 65.0

04/10 50 69 59.5 45 72 58.5 49 67 58.0 46 74 60.0 48 76 62.0 50 69 59.5 47 65 56.0 46 67 56.5 50 82 66.0 54 86 70.0 54 82 68.0 52 74 63.0

04/11 42 74 58.0 50 67 58.5 46 75 60.5 49 77 63.0 52 70 61.0 47 67 57.0 44 72 58.0 49 79 64.0 55 84 69.5 53 85 69.0 52 80 66.0 51 76 63.5

04/12 49 67 58.0 49 74 61.5 48 77 62.5 52 71 61.5 48 63 55.5 46 67 56.5 50 79 64.5 53 82 67.5 54 84 69.0 54 83 68.5 49 75 62.0 51 75 63.0

04/13 45 76 60.5 54 78 66.0 51 71 61.0 48 61 54.5 46 70 58.0 48 82 65.0 54 86 70.0 57 82 69.5 56 85 70.5 55 87 71.0 54 85 69.5 54 79 66.5

04/14 52 75 63.5 57 70 63.5 46 60 53.0 45 71 58.0 47 81 64.0 54 87 70.5 57 84 70.5 57 76 66.5 53 78 65.5 49 80 64.5 51 78 64.5 50 76 63.0

04/15 56 68 62.0 53 59 56.0 44 70 57.0 48 82 65.0 56 87 71.5 58 85 71.5 58 78 68.0 53 76 64.5 53 84 68.5 55 86 70.5 51 82 66.5 52 81 66.5

04/16 48 59 53.5 47 70 58.5 49 82 65.5 56 86 71.0 58 82 70.0 57 77 67.0 51 78 64.5 52 80 66.0 52 83 67.5 55 86 70.5 54 85 69.5 55 82 68.5

04/17 47 69 58.0 46 82 64.0 55 86 70.5 57 83 70.0 58 75 66.5 53 80 66.5 54 81 67.5 56 82 69.0 61 91 76.0 57 90 73.5 54 86 70.0 54 82 68.0

04/18 44 84 64.0 51 87 69.0 56 84 70.0 59 73 66.0 53 81 67.0 54 85 69.5 58 87 72.5 59 85 72.0 59 87 73.0 56 86 71.0 54 81 67.5 53 81 67.0

04/19 50 84 67.0 54 83 68.5 56 70 63.0 50 80 65.0 53 85 69.0 59 89 74.0 60 86 73.0 60 82 71.0 57 82 69.5 53 83 68.0 53 82 67.5 53 84 68.5

04/20 53 82 67.5 57 71 64.0 49 80 64.5 53 86 69.5 59 90 74.5 61 90 75.5 61 86 73.5 60 80 70.0 56 84 70.0 53 85 69.0 54 84 69.0 55 84 69.5

04/21 54 71 62.5 51 80 65.5 52 86 69.0 59 91 75.0 60 91 75.5 61 87 74.0 60 80 70.0 56 80 68.0 53 82 67.5 51 75 63.0 48 77 62.5 50 79 64.5

04/22 49 79 64.0 54 87 70.5 59 92 75.5 61 92 76.5 61 89 75.0 59 84 71.5 57 84 70.5 56 78 67.0 53 76 64.5 48 74 61.0 49 74 61.5 49 78 63.5

04/23 52 88 70.0 65 91 78.0 62 93 77.5 62 89 75.5 59 87 73.0 58 83 70.5 57 79 68.0 55 78 66.5 55 83 69.0 52 84 68.0 53 85 69.0 52 82 67.0

04/24 63 93 78.0 62 93 77.5 61 90 75.5 59 88 73.5 58 88 73.0 58 82 70.0 56 81 68.5 54 77 65.5 53 80 66.5 50 80 65.0 53 84 68.5 55 83 69.0

04/25 62 91 76.5 61 90 75.5 59 87 73.0 58 87 72.5 57 83 70.0 56 82 69.0 54 76 65.0 51 78 64.5 49 82 65.5 51 83 67.0 53 82 67.5 55 84 69.5

04/26 60 89 74.5 57 87 72.0 58 87 72.5 56 83 69.5 56 83 69.5 54 77 65.5 51 79 65.0 52 80 66.0 54 89 71.5 55 90 72.5 57 87 72.0 53 80 66.5

04/27 56 89 72.5 61 87 74.0 56 84 70.0 54 85 69.5 53 79 66.0 51 81 66.0 53 81 67.0 52 77 64.5 49 76 62.5 50 80 65.0 53 82 67.5 53 78 65.5

04/28 60 87 73.5 58 84 71.0 56 84 70.0 52 77 64.5 50 81 65.5 50 82 66.0 56 84 70.0 57 81 69.0 58 80 69.0 53 84 68.5 56 85 70.5 57 85 71.0

04/29 57 84 70.5 63 83 73.0 52 76 64.0 48 79 63.5 52 81 66.5 54 86 70.0 56 86 71.0 56 80 68.0 54 82 68.0 54 86 70.0 55 86 70.5 59 87 73.0

04/30 63 85 74.0 55 75 65.0 47 79 63.0 50 81 65.5 53 86 69.5 55 85 70.0 56 77 66.5 55 79 67.0 56 84 70.0 54 85 69.5 53 84 68.5 57 84 70.5

-

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

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 9 Days 10 Days

2
Code Body of Water Location1 CDEC Link Point Temp. (°F) Begin Date

TCD N/A Shasta Power Plant N/A BSF 56.0 05/25/2018

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

50

53

56

59

62

65

68

71

74

77

80

83

47

48

49

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)

3
04/01 49.9 50.1

- 50.2 51.1

04/02 49.7 49.7- 50.2 50.9

04/03 49.7 49.6- 50.1 51.1

04/04 49.2 49.2- 50.0 50.3

04/05 50.4 48.6- 49.8 49.5

04/06 48.7 48.2- 49.5 49.4

04/07 48.5 48.6 49.4 49.1 49.5

04/08 50.1 49.3 49.5 49.0 50.2

04/09 49.3 49.4 49.4 49.0 51.0

04/10 49.6 49.7 49.4 49.0 50.0

04/11 49.4 49.4 49.4 49.0 50.1

04/12 50.0 50.1 49.4 49.2 50.2

04/13 50.3 50.4 49.6 49.6 50.6

04/14 49.8 49.9 49.8 49.7 50.4

04/15 49.3 49.3 49.7 49.7 49.9

04/16 50.5 50.6 49.8 49.9 50.7

04/17 51.4 51.4 50.1 50.2 51.7

04/18 52.1 52.6 50.5 50.6 53.0

04/19 52.3 52.8 50.8 51.0 53.7

04/20 52.0 52.0 51.1 51.2 53.5

04/21 52.6 53.5 51.5 51.7 53.5

04/22 53.6 54.7 52.1 52.5 54.6

04/23 54.4 55.6 52.6 53.2 55.8

04/24 55.2 56.3 53.2 53.9 56.8

04/25 55.9 57.1 53.7 54.6 57.4

04/26 55.8 56.8 54.2 55.1 57.6

04/27 56.1 56.9 54.8 55.8 57.2

04/28 55.7 56.9 55.2 56.3 57.2

04/29 55.6 56.9 55.5 56.6 57.0

04/30 55.7 57.2 55.7 56.9 56.9 -

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

59

63

67

71

75

79

83

87

91

95

48

49

50

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)

48

49

50

51

52

53

54

55

56

57

58

13579 11 13 15 17 19 21 23 25 27 291

Water Temperature (°F)

7DADM

4
Latest Profile Date: 04/23/2019

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 - 2019

(Water Temperature, in °F)

Total Daily Storage

5
Latest Profile Date: 04/10/2019

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 - 2019

(Water Temperature, in °F)

Total Daily Storage

6
Latest Profile Date: 04/09/2019

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 - 2019

(Water Temperature, in °F)

Total Daily Storage

7