452  
FGUS56 KRSA 211640  
RVFRN  
 
RUSSIAN AND NAPA RIVER FORECAST  
NATIONAL WEATHER SERVICE / CALIFORNIA NEVADA RFC / SACRAMENTO CA  
CALIFORNIA DEPARTMENT OF WATER RESOURCES / SACRAMENTO CA  
839 AM PST SAT DEC 21 2024  
 
NEXT ISSUANCE: SUNDAY, DECEMBER 22, 2024 AT 9AM PST  
 
FORECASTS THROUGH: THURSDAY, DECEMBER 26, 2024 AT 4AM PST  
 
ALL LOCATIONS ARE EXPECTED TO REMAIN BELOW CRITICAL LEVELS  
 
***********************************************************************  
SPECIAL NOTES-  
***********************************************************************  
 
RIVER  
LOCATION STAGE FLOW TIME DATE LEAD  
(NWSLI) (FT) (CFS) (PT) (MM/DD/YY) TIME  
-------------------- ------- -------- ---- ---------- ------  
NAVARRO RIVER OBS 5.9 660 AT 8AM 12/21/24 (18)  
NAVARRO >MI 23.0 NOT EXPECTED  
(NVRC1) >MD 30.0 NOT EXPECTED  
>MJ 34.0 NOT EXPECTED  
MAX 15.9 5,750 AT 2PM 12/24/24 IN 78 HRS  
 
RUSSIAN RIVER OBS 3.3 605 AT 8AM 12/21/24 (18)  
HOPLAND >MI 15.0 NOT EXPECTED  
(HOPC1) >MD 23.0 NOT EXPECTED  
>MJ 26.0 NOT EXPECTED  
MAX 14.6 6,390 AT 10AM 12/24/24 IN 74 HRS  
 
RUSSIAN RIVER OBS 4.8 2,920 AT 8AM 12/21/24 (24)  
HEALDSBURG >AS 20.0 NOT EXPECTED  
(HEAC1) >MI 23.0 NOT EXPECTED  
>MD 27.0 NOT EXPECTED  
>MJ 29.0 NOT EXPECTED  
MAX 12.6 16,100 AT 5PM 12/24/24 IN 81 HRS  
 
RUSSIAN RIVER OBS 11.0 AT 8AM 12/21/24 (24)  
GUERNEVILLE >AS 29.0 NOT EXPECTED  
(GUEC1) >MI 32.0 NOT EXPECTED  
>MD 35.0 NOT EXPECTED  
>MJ 40.0 NOT EXPECTED  
MAX 21.4 AT 9AM 12/25/24 IN 97 HRS  
 
NAPA RIVER OBS 3.0 123 AT 8AM 12/21/24 (18)  
SAINT HELENA >AS 16.0 NOT EXPECTED  
(SHEC1) >MI 18.0 NOT EXPECTED  
>MD 20.0 NOT EXPECTED  
>MJ 22.0 NOT EXPECTED  
MAX 8.2 2,020 AT 12PM 12/24/24 IN 76 HRS  
 
NAPA RIVER OBS 5.3 338 AT 8AM 12/21/24 (24)  
NAPA >AS 22.0 NOT EXPECTED  
(APCC1) >MI 25.0 NOT EXPECTED  
>MD 26.0 NOT EXPECTED  
>MJ 28.0 NOT EXPECTED  
MAX 13.7 3,610 AT 3PM 12/24/24 IN 79 HRS  
 
DEFINITIONS:  
OBS MOST RECENT OBSERVATION (MAY BE ESTIMATED)  
AS ACTION/MONITOR STAGE  
MI MINOR FLOOD STAGE  
MD MODERATE FLOOD STAGE  
MJ MAJOR FLOOD STAGE  
MAX MAXIMUM FORECAST WITHIN PERIOD  
LEAD TIME FORECASTS WITHIN THIS PERIOD (HOURS) ARE CONSIDERED  
RELIABLE ENOUGH TO INITIATE PHYSICAL MITIGATION EFFORTS.  
 
* EVENT EXCEEDS AS/MI/MD/MJ WITHIN LEAD TIME PERIOD  
 
SIM 12/21/2024 @ 1634 UTC  
 
NOTE: ALL TIMES IN SHEF ENCODED MESSAGES BELOW ARE UTC  
 
.A NVRC1 20241221 Z DH16/HG 5.9  
.ER NVRC1 20241221 Z DH17/DC202412211634/DUE/HGIFE/DIH01  
.ER1 5.9/ 5.9/ 5.9/ 5.9/ 6.0/ 6.2/ 6.5/ 6.8/ 7.1/ 7.4/  
.ER2 7.7/ 7.8/ 7.9/ 7.9/ 7.9/ 7.9/ 7.8/ 7.7/ 7.7/ 7.6/  
.ER3 7.5/ 7.5/ 7.4/ 7.3/ 7.2/ 7.2/ 7.1/ 7.1/ 7.0/ 7.0/  
.ER4 6.9/ 6.9/ 6.8/ 6.8/ 6.7/ 6.7/ 6.6/ 6.6/ 6.6/ 6.6/  
.ER5 6.7/ 6.8/ 7.0/ 7.2/ 7.5/ 7.8/ 8.0/ 8.1/ 8.2/ 8.2/  
.ER6 8.2/ 8.1/ 8.0/ 8.0/ 7.9/ 7.8/ 7.8/ 7.7/ 7.7/ 7.6/  
.ER7 7.6/ 7.6/ 7.7/ 7.8/ 8.0/ 8.3/ 8.7/ 9.2/ 9.8/ 10.8/  
.ER8 12.5/ 13.2/ 13.9/ 14.6/ 15.2/ 15.6/ 15.8/ 15.9/ 15.9/ 15.8/  
.ER9 15.6/ 15.5/ 15.4/ 15.2/ 15.0/ 14.8/ 14.5/ 14.3/ 14.1/ 13.9/  
.ER10 13.7/ 13.6/ 13.4/ 13.2/ 13.0/ 12.8/ 12.7/ 12.5/ 12.3/ 12.1/  
.ER11 11.9/ 11.8/ 11.6/ 11.4/ 11.4/ 11.2/ 11.1/ 10.9/ 10.8/ 10.7/  
.ER12 10.6/ 10.4/ 10.3/ 10.2/ 10.1/ 10.1/  
 
.A HOPC1 20241221 Z DH16/HG 3.3  
.ER HOPC1 20241221 Z DH17/DC202412211634/DUE/HGIFE/DIH01  
.ER1 3.3/ 3.8/ 4.8/ 5.5/ 5.9/ 6.2/ 6.7/ 7.0/ 7.1/ 7.0/  
.ER2 6.8/ 6.6/ 6.4/ 6.2/ 6.0/ 5.8/ 5.7/ 5.5/ 5.4/ 5.3/  
.ER3 5.2/ 5.0/ 4.9/ 4.8/ 4.8/ 4.7/ 4.6/ 4.5/ 4.4/ 4.4/  
.ER4 4.3/ 4.2/ 4.2/ 4.1/ 4.1/ 4.1/ 4.4/ 4.9/ 5.4/ 6.1/  
.ER5 6.6/ 7.0/ 7.3/ 7.4/ 7.3/ 7.2/ 7.0/ 6.8/ 6.5/ 6.3/  
.ER6 6.2/ 6.0/ 5.8/ 5.7/ 5.6/ 5.5/ 5.4/ 5.4/ 5.6/ 6.0/  
.ER7 6.6/ 7.2/ 7.9/ 8.7/ 9.7/ 10.9/ 12.0/ 13.0/ 13.6/ 14.0/  
.ER8 14.2/ 14.4/ 14.5/ 14.6/ 14.5/ 14.4/ 14.2/ 14.0/ 13.7/ 13.5/  
.ER9 13.2/ 12.9/ 12.6/ 12.1/ 11.8/ 11.4/ 11.2/ 11.0/ 10.8/ 10.6/  
.ER10 10.3/ 10.1/ 9.8/ 9.6/ 9.4/ 9.2/ 9.0/ 8.8/ 8.6/ 8.5/  
.ER11 8.3/ 8.1/ 7.9/ 7.8/ 7.6/ 7.5/ 7.3/ 7.2/ 7.1/ 7.0/  
.ER12 6.9/ 6.8/ 6.7/ 6.6/ 6.6/ 6.8/  
 
.A HEAC1 20241221 Z DH16/HG 4.8  
.ER HEAC1 20241221 Z DH17/DC202412211634/DUE/HGIFE/DIH01  
.ER1 4.8/ 4.8/ 4.8/ 4.8/ 4.9/ 4.9/ 5.0/ 5.1/ 5.2/ 5.2/  
.ER2 5.3/ 5.4/ 5.5/ 5.6/ 5.7/ 5.7/ 5.7/ 5.7/ 5.7/ 5.8/  
.ER3 5.7/ 5.7/ 5.7/ 5.6/ 5.6/ 5.5/ 5.4/ 5.4/ 5.3/ 5.2/  
.ER4 5.2/ 5.1/ 5.0/ 4.9/ 4.9/ 4.8/ 4.8/ 4.7/ 4.7/ 4.7/  
.ER5 4.8/ 4.9/ 5.1/ 5.1/ 5.2/ 5.3/ 5.3/ 5.4/ 5.5/ 5.6/  
.ER6 5.6/ 5.6/ 5.6/ 5.6/ 5.7/ 5.7/ 5.7/ 5.7/ 5.7/ 5.7/  
.ER7 5.6/ 5.6/ 5.6/ 5.7/ 5.8/ 6.0/ 6.2/ 6.5/ 6.9/ 7.5/  
.ER8 8.2/ 8.9/ 9.7/ 10.4/ 11.0/ 11.5/ 11.9/ 12.2/ 12.4/ 12.6/  
.ER9 12.6/ 12.6/ 12.6/ 12.4/ 12.3/ 12.1/ 11.9/ 11.8/ 11.5/ 11.3/  
.ER10 11.0/ 10.8/ 10.6/ 10.3/ 10.1/ 9.9/ 9.7/ 9.5/ 9.3/ 9.0/  
.ER11 8.8/ 8.6/ 8.5/ 8.3/ 8.1/ 8.0/ 7.9/ 7.7/ 7.6/ 7.5/  
.ER12 7.4/ 7.2/ 7.1/ 7.0/ 6.9/ 6.8/  
 
.A GUEC1 20241221 Z DH16/HG 11.0  
.ER GUEC1 20241221 Z DH17/DC202412211634/DUE/HGIFE/DIH01  
.ER1 10.8/ 10.7/ 10.6/ 10.5/ 10.4/ 10.3/ 10.2/ 10.2/ 10.1/ 10.1/  
.ER2 10.0/ 10.0/ 10.1/ 10.1/ 10.1/ 10.2/ 10.2/ 10.3/ 10.3/ 10.4/  
.ER3 10.4/ 10.5/ 10.5/ 10.5/ 10.6/ 10.6/ 10.6/ 10.6/ 10.6/ 10.5/  
.ER4 10.5/ 10.5/ 10.4/ 10.4/ 10.3/ 10.2/ 10.2/ 10.1/ 10.0/ 10.0/  
.ER5 9.9/ 9.9/ 9.9/ 9.9/ 9.9/ 9.9/ 9.9/ 9.9/ 9.9/ 10.0/  
.ER6 10.1/ 10.1/ 10.2/ 10.3/ 10.3/ 10.4/ 10.4/ 10.5/ 10.5/ 10.5/  
.ER7 10.5/ 10.5/ 10.6/ 10.6/ 10.6/ 10.7/ 10.8/ 10.8/ 10.9/ 11.0/  
.ER8 11.2/ 11.4/ 11.7/ 12.0/ 12.4/ 12.8/ 13.2/ 13.6/ 14.1/ 14.7/  
.ER9 15.4/ 15.9/ 16.7/ 17.4/ 18.0/ 18.6/ 19.2/ 19.6/ 20.0/ 20.4/  
.ER10 20.7/ 21.0/ 21.1/ 21.3/ 21.3/ 21.4/ 21.4/ 21.4/ 21.3/ 21.2/  
.ER11 21.1/ 20.9/ 20.7/ 20.5/ 20.2/ 20.0/ 19.7/ 19.5/ 19.2/ 18.8/  
.ER12 18.4/ 18.1/ 17.7/ 17.4/ 16.9/ 16.6/  
 
.A SHEC1 20241221 Z DH16/HG 3.0  
.ER SHEC1 20241221 Z DH17/DC202412211634/DUE/HGIFE/DIH01  
.ER1 3.0/ 3.0/ 3.0/ 3.0/ 3.1/ 3.3/ 3.7/ 3.9/ 4.0/ 4.1/  
.ER2 4.1/ 4.1/ 4.1/ 4.0/ 3.9/ 3.9/ 3.8/ 3.8/ 3.8/ 3.8/  
.ER3 3.7/ 3.7/ 3.7/ 3.7/ 3.6/ 3.6/ 3.6/ 3.6/ 3.6/ 3.5/  
.ER4 3.5/ 3.5/ 3.5/ 3.4/ 3.4/ 3.4/ 3.4/ 3.4/ 3.4/ 3.7/  
.ER5 4.3/ 4.8/ 4.8/ 4.7/ 4.5/ 4.4/ 4.3/ 4.2/ 4.2/ 4.1/  
.ER6 4.1/ 4.0/ 4.0/ 3.9/ 3.9/ 3.9/ 3.8/ 3.8/ 3.8/ 3.8/  
.ER7 3.8/ 3.9/ 4.1/ 4.3/ 4.4/ 5.0/ 5.7/ 6.3/ 6.7/ 7.0/  
.ER8 7.2/ 7.5/ 7.7/ 8.0/ 8.1/ 8.2/ 8.1/ 7.7/ 7.3/ 6.9/  
.ER9 6.7/ 6.5/ 6.4/ 6.3/ 6.1/ 6.0/ 5.9/ 5.8/ 5.7/ 5.6/  
.ER10 5.5/ 5.4/ 5.3/ 5.2/ 5.1/ 5.0/ 5.0/ 4.9/ 4.8/ 4.8/  
.ER11 4.7/ 4.7/ 4.7/ 4.6/ 4.6/ 4.5/ 4.5/ 4.5/ 4.5/ 4.4/  
.ER12 4.4/ 4.4/ 4.3/ 4.3/ 4.3/ 4.3/  
 
.A APCC1 20241221 Z DH16/HG 5.3  
.ER APCC1 20241221 Z DH17/DC202412211634/DUE/HGIFE/DIH01  
.ER1 5.3/ 5.3/ 5.3/ 5.3/ 5.3/ 5.3/ 5.3/ 5.3/ 5.3/ 5.3/  
.ER2 5.3/ 5.3/ 5.4/ 5.5/ 5.6/ 5.7/ 5.8/ 5.9/ 5.9/ 5.9/  
.ER3 5.9/ 5.9/ 5.9/ 5.9/ 5.9/ 5.9/ 5.9/ 5.9/ 5.8/ 5.8/  
.ER4 5.8/ 5.8/ 5.7/ 5.7/ 5.7/ 5.7/ 5.6/ 5.6/ 5.6/ 5.6/  
.ER5 5.6/ 5.6/ 5.6/ 5.6/ 5.7/ 5.9/ 6.1/ 6.2/ 6.3/ 6.3/  
.ER6 6.3/ 6.3/ 6.3/ 6.3/ 6.2/ 6.2/ 6.2/ 6.1/ 6.1/ 6.0/  
.ER7 6.0/ 6.0/ 6.0/ 5.9/ 5.9/ 6.0/ 6.2/ 6.8/ 8.0/ 8.9/  
.ER8 9.7/ 10.4/ 11.1/ 11.7/ 12.3/ 12.9/ 13.3/ 13.6/ 13.7/ 13.6/  
.ER9 13.2/ 12.7/ 12.3/ 11.9/ 11.6/ 11.2/ 10.9/ 10.6/ 10.4/ 10.2/  
.ER10 10.0/ 9.8/ 9.6/ 9.4/ 9.3/ 9.1/ 9.0/ 8.8/ 8.7/ 8.5/  
.ER11 8.4/ 8.3/ 8.2/ 8.1/ 8.0/ 7.9/ 7.8/ 7.8/ 7.7/ 7.6/  
.ER12 7.6/ 7.5/ 7.5/ 7.4/ 7.4/ 7.4/  
 
END  
 
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