River Forecast
Issued by NWS
Issued by NWS
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FGUS56 KRSA 171352
RVFRN
RUSSIAN AND NAPA RIVER FORECAST
NATIONAL WEATHER SERVICE / CALIFORNIA-NEVADA RFC / SACRAMENTO CA
CALIFORNIA DEPARTMENT OF WATER RESOURCES / SACRAMENTO CA
651 AM PDT THU SEP 17 2026
NEXT ISSUANCE: FRIDAY, SEPTEMBER 18, 2026 AT 9AM PDT
FORECASTS THROUGH: TUESDAY, SEPTEMBER 22, 2026 AT 5AM PDT
ALL LOCATIONS ARE EXPECTED TO REMAIN BELOW CRITICAL LEVELS
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SPECIAL NOTES-
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RIVER
LOCATION STAGE FLOW TIME DATE LEAD
(NWSLI) (FT) (CFS) (PT) (MM/DD/YY) TIME
-------------------- ------- -------- ---- ---------- ------
NAVARRO RIVER OBS 1.1 3 AT 6AM 09/17/26 (18)
NAVARRO >MI 23.0 NOT EXPECTED
(NVRC1) >MD 30.0 NOT EXPECTED
>MJ 34.0 NOT EXPECTED
MAX 1.1 3 AT CURRENT TIME
RUSSIAN RIVER OBS 0.7 121 AT 6AM 09/17/26 (18)
HOPLAND >MI 15.0 NOT EXPECTED
(HOPC1) >MD 23.0 NOT EXPECTED
>MJ 26.0 NOT EXPECTED
MAX 0.7 123 AT 6PM 09/21/26 IN 108 HRS
RUSSIAN RIVER OBS -0.3 91 AT 6AM 09/17/26 (24)
HEALDSBURG >AS 20.0 NOT EXPECTED
(HEAC1) >MI 23.0 NOT EXPECTED
>MD 27.0 NOT EXPECTED
>MJ 29.0 NOT EXPECTED
MAX -0.3 0 AT 1AM 09/22/26 IN 115 HRS
RUSSIAN RIVER OBS 7.9 AT 6AM 09/17/26 (24)
GUERNEVILLE >AS 29.0 NOT EXPECTED
(GUEC1) >MI 32.0 NOT EXPECTED
>MD 35.0 NOT EXPECTED
>MJ 40.0 NOT EXPECTED
MAX 7.9 AT CURRENT TIME
NAPA RIVER OBS 1.1 0 AT 6AM 09/17/26 (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 1.1 0 AT CURRENT TIME
NAPA RIVER OBS 2.1 0 AT 6AM 09/17/26 (24)
NAPA >AS 22.0 NOT EXPECTED
(APCC1) >MI 25.0 NOT EXPECTED
>MD 26.0 NOT EXPECTED
>MJ 28.0 NOT EXPECTED
MAX 2.1 0 AT CURRENT TIME
DEFINITIONS:
OBS MOST RECENT OBSERVATION (MAY BE ESTIMATED)
AS ACTION 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 09/17/2026 @ 1348 UTC
NOTE: ALL TIMES IN SHEF ENCODED MESSAGES BELOW ARE UTC
.A NVRC1 20260917 Z DH13/HG 1.1
.ER NVRC1 20260917 Z DH14/DC202609171348/DUE/HGIFE/DIH01
.ER1 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER2 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER3 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER4 1.08/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER5 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER6 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER7 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER8 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER9 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER10 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER11 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/
.ER12 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.07/ 1.06/
.ER13 1.07/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/
.ER14 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/
.ER15 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/ 1.06/
.A HOPC1 20260917 Z DH13/HG 0.7
.ER HOPC1 20260917 Z DH14/DC202609171348/DUE/HGIFE/DIH01
.ER1 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER2 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER3 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER4 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER5 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER6 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER7 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER8 0.72/ 0.72/ 0.72/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.ER9 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.ER10 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/ 0.72/
.ER11 0.72/ 0.72/ 0.72/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.ER12 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.ER13 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.ER14 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.ER15 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/ 0.73/
.A HEAC1 20260917 Z DH13/HG -0.3
.ER HEAC1 20260917 Z DH14/DC202609171348/DUE/HGIFE/DIH01
.ER1 -0.33/ -0.33/ -0.33/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER2 -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER3 -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER4 -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER5 -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER6 -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER7 -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/ -0.34/
.ER8 -0.34/ -0.34/ -0.34/ -0.34/ -0.33/ -0.33/ -0.33/ -0.33/
.ER9 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.ER10 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.ER11 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.ER12 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.ER13 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.ER14 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.ER15 -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/ -0.33/
.A GUEC1 20260917 Z DH13/HG 7.9
.ER GUEC1 20260917 Z DH14/DC202609171348/DUE/HGIFE/DIH01
.ER1 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/
.ER2 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/
.ER3 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/ 7.90/
.ER4 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/
.ER5 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/
.ER6 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/
.ER7 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/
.ER8 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/
.ER9 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/
.ER10 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.89/ 7.88/
.ER11 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/
.ER12 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/
.ER13 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/
.ER14 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/
.ER15 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/ 7.88/
.A SHEC1 20260917 Z DH13/HG 1.1
.ER SHEC1 20260917 Z DH14/DC202609171348/DUE/HGIFE/DIH01
.ER1 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER2 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER3 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER4 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER5 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER6 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER7 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER8 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER9 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER10 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER11 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER12 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER13 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER14 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.ER15 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/ 1.08/
.A APCC1 20260917 Z DH13/HG 2.1
.ER APCC1 20260917 Z DH14/DC202609171348/DUE/HGIFE/DIH01
.ER1 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER2 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER3 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER4 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER5 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER6 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER7 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER8 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER9 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER10 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER11 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER12 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER13 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER14 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
.ER15 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/ 2.07/
END