RUSSIAN RIVER - GEYSERVILLE (GEYC1)
Latitude: 38.71º NLongitude: 122.89º WElevation: 190 FeetForecast Type: Unofficial Location
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Mar 05 2026 at 12:50 PM PSTNext Issuance: Mar 06 2026 at 9:00 AM PST
Action/Monitor: 38.0 FeetMinor Flood: 39.7 FeetModerate Flood: 46.0 FeetMajor Flood: 50.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Geyserville (GEYC1)
#
# File Generation Time:  03/05/2026 at 12:51 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/28/2026 at 12:00 PM PST
# Maximum Observed Stage:                       30.48 Feet
# Maximum Observed Flow:                        3437 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/05/2026 at 01:00 PM PST
# Maximum Forecast Stage:                       28.02 Feet
# Maximum Forecast Flow:                        1758 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/28/2026 12 PM PST           30.48           3437                        Normal
  02/28/2026 01 PM PST           30.47           3429         -              Normal
  02/28/2026 02 PM PST           30.44           3405         -              Normal
  02/28/2026 03 PM PST           30.41           3381         -              Normal
  02/28/2026 04 PM PST           30.38           3357         -              Normal
  02/28/2026 05 PM PST           30.35           3333         -              Normal
  02/28/2026 06 PM PST           30.32           3309         -              Normal
  02/28/2026 07 PM PST           30.29           3286         -              Normal
  02/28/2026 08 PM PST           30.26           3262         -              Normal
  02/28/2026 09 PM PST           30.23           3239         -              Normal
  02/28/2026 10 PM PST           30.18           3200         -              Normal
  02/28/2026 11 PM PST           30.14           3169         -              Normal
  03/01/2026 12 AM PST           30.12           3153         -              Normal
  03/01/2026 01 AM PST           30.08           3122         -              Normal
  03/01/2026 02 AM PST           30.06           3107         -              Normal
  03/01/2026 03 AM PST           30.04           3091         -              Normal
  03/01/2026 04 AM PST           30.00           3061         -              Normal
  03/01/2026 05 AM PST           29.97           3038         -              Normal
  03/01/2026 06 AM PST           29.94           3015         -              Normal
  03/01/2026 07 AM PST           29.91           2992         -              Normal
  03/01/2026 08 AM PST           29.89           2977         -              Normal
  03/01/2026 09 AM PST           29.86           2955         -              Normal
  03/01/2026 10 AM PST           29.84           2940         -              Normal
  03/01/2026 11 AM PST           29.81           2917         -              Normal
  03/01/2026 12 PM PST           29.80           2910         -              Normal
  03/01/2026 01 PM PST           29.77           2887         -              Normal
  03/01/2026 02 PM PST           29.75           2873         -              Normal
  03/01/2026 03 PM PST           29.72           2852         -              Normal
  03/01/2026 04 PM PST           29.68           2824         -              Normal
  03/01/2026 05 PM PST           29.65           2802         -              Normal
  03/01/2026 06 PM PST           29.62           2781         -              Normal
  03/01/2026 07 PM PST           29.59           2760         -              Normal
  03/01/2026 08 PM PST           29.56           2740         -              Normal
  03/01/2026 09 PM PST           29.54           2726         -              Normal
  03/01/2026 10 PM PST           29.52           2712         -              Normal
  03/01/2026 11 PM PST           29.50           2698         -              Normal
  03/02/2026 12 AM PST           29.46           2670         -              Normal
  03/02/2026 01 AM PST           29.43           2650         -              Normal
  03/02/2026 02 AM PST           29.41           2636         -              Normal
  03/02/2026 03 AM PST           29.41           2636         0              Normal
  03/02/2026 04 AM PST           29.39           2623         -              Normal
  03/02/2026 05 AM PST           29.35           2595         -              Normal
  03/02/2026 06 AM PST           29.33           2582         -              Normal
  03/02/2026 07 AM PST           29.32           2575         -              Normal
  03/02/2026 08 AM PST           29.31           2568         -              Normal
  03/02/2026 09 AM PST           29.28           2548         -              Normal
  03/02/2026 10 AM PST           29.26           2534         -              Normal
  03/02/2026 11 AM PST           29.24           2521         -              Normal
  03/02/2026 12 PM PST           29.21           2501         -              Normal
  03/02/2026 01 PM PST           29.20           2494         -              Normal
  03/02/2026 02 PM PST           29.18           2481         -              Normal
  03/02/2026 03 PM PST           29.17           2474         -              Normal
  03/02/2026 04 PM PST           29.14           2454         -              Normal
  03/02/2026 05 PM PST           29.12           2441         -              Normal
  03/02/2026 06 PM PST           29.10           2428         -              Normal
  03/02/2026 07 PM PST           29.07           2408         -              Normal
  03/02/2026 08 PM PST           29.07           2408         0              Normal
  03/02/2026 09 PM PST           29.05           2395         -              Normal
  03/02/2026 10 PM PST           29.04           2388         -              Normal
  03/02/2026 11 PM PST           29.02           2375         -              Normal
  03/03/2026 12 AM PST           28.99           2355         -              Normal
  03/03/2026 01 AM PST           28.98           2349         -              Normal
  03/03/2026 02 AM PST           28.96           2336         -              Normal
  03/03/2026 03 AM PST           28.96           2336         0              Normal
  03/03/2026 04 AM PST           28.96           2336         0              Normal
  03/03/2026 05 AM PST           28.92           2310         -              Normal
  03/03/2026 06 AM PST           28.91           2303         -              Normal
  03/03/2026 07 AM PST           28.89           2291         -              Normal
  03/03/2026 08 AM PST           28.86           2271         -              Normal
  03/03/2026 09 AM PST           28.85           2265         -              Normal
  03/03/2026 10 AM PST           28.83           2252         -              Normal
  03/03/2026 11 AM PST           28.82           2246         -              Normal
  03/03/2026 12 PM PST           28.80           2233         -              Normal
  03/03/2026 01 PM PST           28.79           2226         -              Normal
  03/03/2026 02 PM PST           28.78           2220         -              Normal
  03/03/2026 03 PM PST           28.78           2220         0              Normal
  03/03/2026 04 PM PST           28.77           2214         -              Normal
  03/03/2026 05 PM PST           28.76           2207         -              Normal
  03/03/2026 06 PM PST           28.73           2188         -              Normal
  03/03/2026 07 PM PST           28.70           2169         -              Normal
  03/03/2026 08 PM PST           28.67           2150         -              Normal
  03/03/2026 09 PM PST           28.68           2157         +              Normal
  03/03/2026 10 PM PST           28.68           2157         0              Normal
  03/03/2026 11 PM PST           28.68           2157         0              Normal
  03/04/2026 12 AM PST           28.65           2138         -              Normal
  03/04/2026 01 AM PST           28.67           2150         +              Normal
  03/04/2026 02 AM PST           28.66           2144         -              Normal
  03/04/2026 03 AM PST           28.63           2125         -              Normal
  03/04/2026 04 AM PST           28.61           2113         -              Normal
  03/04/2026 05 AM PST           28.60           2107         -              Normal
  03/04/2026 06 AM PST           28.63           2125         +              Normal
  03/04/2026 07 AM PST           28.63           2125         0              Normal
  03/04/2026 08 AM PST           28.55           2075         -              Normal
  03/04/2026 09 AM PST           28.56           2082         +              Normal
  03/04/2026 10 AM PST           28.58           2094         +              Normal
  03/04/2026 11 AM PST           28.56           2082         -              Normal
  03/04/2026 12 PM PST           28.59           2100         +              Normal
  03/04/2026 01 PM PST           28.59           2100         0              Normal
  03/04/2026 02 PM PST           28.55           2075         -              Normal
  03/04/2026 03 PM PST           28.55           2075         0              Normal
  03/04/2026 04 PM PST           28.52           2057         -              Normal
  03/04/2026 05 PM PST           28.53           2063         +              Normal
  03/04/2026 06 PM PST           28.51           2051         -              Normal
  03/04/2026 07 PM PST           28.51           2051         0              Normal
  03/04/2026 08 PM PST           28.47           2026         -              Normal
  03/04/2026 09 PM PST           28.48           2032         +              Normal
  03/04/2026 10 PM PST           28.47           2026         -              Normal
  03/04/2026 11 PM PST           28.43           2002         -              Normal
  03/05/2026 12 AM PST           28.38           1971         -              Normal
  03/05/2026 01 AM PST           28.28           1911         -              Normal
  03/05/2026 02 AM PST           28.24           1887         -              Normal
  03/05/2026 03 AM PST           28.23           1881         -              Normal
  03/05/2026 04 AM PST           28.17           1845         -              Normal
  03/05/2026 05 AM PST           28.15           1834         -              Normal
  03/05/2026 06 AM PST           28.09           1799         -              Normal
  03/05/2026 07 AM PST           28.11           1810         +              Normal
  03/05/2026 08 AM PST           28.07           1787         -              Normal
  03/05/2026 09 AM PST           28.08           1793         +              Normal
  03/05/2026 10 AM PST           28.06           1781         -              Normal
  03/05/2026 11 AM PST           28.05           1775         -              Normal
  03/05/2026 12 PM PST           28.03           1764         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/05/2026 01 PM PST           28.02           1758                        Normal
  03/05/2026 02 PM PST           28.00           1746         -              Normal
  03/05/2026 03 PM PST           27.99           1740         -              Normal
  03/05/2026 04 PM PST           27.98           1733         -              Normal
  03/05/2026 05 PM PST           27.97           1726         -              Normal
  03/05/2026 06 PM PST           27.96           1720         -              Normal
  03/05/2026 07 PM PST           27.95           1713         -              Normal
  03/05/2026 08 PM PST           27.94           1707         -              Normal
  03/05/2026 09 PM PST           27.93           1700         -              Normal
  03/05/2026 10 PM PST           27.92           1694         -              Normal
  03/05/2026 11 PM PST           27.91           1687         -              Normal
  03/06/2026 12 AM PST           27.91           1687         0              Normal
  03/06/2026 01 AM PST           27.90           1681         -              Normal
  03/06/2026 02 AM PST           27.89           1674         -              Normal
  03/06/2026 03 AM PST           27.88           1668         -              Normal
  03/06/2026 04 AM PST           27.87           1661         -              Normal
  03/06/2026 05 AM PST           27.86           1655         -              Normal
  03/06/2026 06 AM PST           27.86           1655         0              Normal
  03/06/2026 07 AM PST           27.85           1648         -              Normal
  03/06/2026 08 AM PST           27.84           1642         -              Normal
  03/06/2026 09 AM PST           27.83           1636         -              Normal
  03/06/2026 10 AM PST           27.83           1636         0              Normal
  03/06/2026 11 AM PST           27.82           1629         -              Normal
  03/06/2026 12 PM PST           27.81           1623         -              Normal
  03/06/2026 01 PM PST           27.80           1616         -              Normal
  03/06/2026 02 PM PST           27.79           1610         -              Normal
  03/06/2026 03 PM PST           27.79           1610         0              Normal
  03/06/2026 04 PM PST           27.78           1604         -              Normal
  03/06/2026 05 PM PST           27.77           1597         -              Normal
  03/06/2026 06 PM PST           27.76           1591         -              Normal
  03/06/2026 07 PM PST           27.76           1591         0              Normal
  03/06/2026 08 PM PST           27.75           1585         -              Normal
  03/06/2026 09 PM PST           27.74           1578         -              Normal
  03/06/2026 10 PM PST           27.74           1578         0              Normal
  03/06/2026 11 PM PST           27.73           1572         -              Normal
  03/07/2026 12 AM PST           27.72           1566         -              Normal
  03/07/2026 01 AM PST           27.72           1566         0              Normal
  03/07/2026 02 AM PST           27.71           1559         -              Normal
  03/07/2026 03 AM PST           27.70           1553         -              Normal
  03/07/2026 04 AM PST           27.70           1553         0              Normal
  03/07/2026 05 AM PST           27.69           1547         -              Normal
  03/07/2026 06 AM PST           27.68           1540         -              Normal
  03/07/2026 07 AM PST           27.68           1540         0              Normal
  03/07/2026 08 AM PST           27.67           1534         -              Normal
  03/07/2026 09 AM PST           27.66           1528         -              Normal
  03/07/2026 10 AM PST           27.66           1528         0              Normal
  03/07/2026 11 AM PST           27.65           1522         -              Normal
  03/07/2026 12 PM PST           27.64           1515         -              Normal
  03/07/2026 01 PM PST           27.64           1515         0              Normal
  03/07/2026 02 PM PST           27.63           1509         -              Normal
  03/07/2026 03 PM PST           27.62           1503         -              Normal
  03/07/2026 04 PM PST           27.62           1503         0              Normal
  03/07/2026 05 PM PST           27.61           1497         -              Normal
  03/07/2026 06 PM PST           27.61           1497         0              Normal
  03/07/2026 07 PM PST           27.60           1491         -              Normal
  03/07/2026 08 PM PST           27.59           1484         -              Normal
  03/07/2026 09 PM PST           27.59           1484         0              Normal
  03/07/2026 10 PM PST           27.58           1478         -              Normal
  03/07/2026 11 PM PST           27.58           1478         0              Normal
  03/08/2026 12 AM PST           27.57           1472         -              Normal
  03/08/2026 01 AM PST           27.57           1472         0              Normal
  03/08/2026 03 AM PDT           27.56           1466         -              Normal
  03/08/2026 04 AM PDT           27.55           1460         -              Normal
  03/08/2026 05 AM PDT           27.55           1460         0              Normal
  03/08/2026 06 AM PDT           27.54           1454         -              Normal
  03/08/2026 07 AM PDT           27.54           1454         0              Normal
  03/08/2026 08 AM PDT           27.53           1448         -              Normal
  03/08/2026 09 AM PDT           27.52           1442         -              Normal
  03/08/2026 10 AM PDT           27.52           1442         0              Normal
  03/08/2026 11 AM PDT           27.51           1435         -              Normal
  03/08/2026 12 PM PDT           27.51           1435         0              Normal
  03/08/2026 01 PM PDT           27.50           1429         -              Normal
  03/08/2026 02 PM PDT           27.50           1429         0              Normal
  03/08/2026 03 PM PDT           27.49           1423         -              Normal
  03/08/2026 04 PM PDT           27.49           1423         0              Normal
  03/08/2026 05 PM PDT           27.48           1417         -              Normal
  03/08/2026 06 PM PDT           27.48           1417         0              Normal
  03/08/2026 07 PM PDT           27.47           1411         -              Normal
  03/08/2026 08 PM PDT           27.46           1405         -              Normal
  03/08/2026 09 PM PDT           27.46           1405         0              Normal
  03/08/2026 10 PM PDT           27.45           1399         -              Normal
  03/08/2026 11 PM PDT           27.45           1399         0              Normal
  03/09/2026 12 AM PDT           27.44           1393         -              Normal
  03/09/2026 01 AM PDT           27.44           1393         0              Normal
  03/09/2026 02 AM PDT           27.43           1387         -              Normal
  03/09/2026 03 AM PDT           27.43           1387         0              Normal
  03/09/2026 04 AM PDT           27.42           1381         -              Normal
  03/09/2026 05 AM PDT           27.42           1381         0              Normal
  03/09/2026 06 AM PDT           27.41           1375         -              Normal
  03/09/2026 07 AM PDT           27.41           1375         0              Normal
  03/09/2026 08 AM PDT           27.40           1369         -              Normal
  03/09/2026 09 AM PDT           27.40           1369         0              Normal
  03/09/2026 10 AM PDT           27.39           1363         -              Normal
  03/09/2026 11 AM PDT           27.39           1363         0              Normal
  03/09/2026 12 PM PDT           27.38           1357         -              Normal
  03/09/2026 01 PM PDT           27.38           1357         0              Normal
  03/09/2026 02 PM PDT           27.37           1351         -              Normal
  03/09/2026 03 PM PDT           27.37           1351         0              Normal
  03/09/2026 04 PM PDT           27.36           1345         -              Normal
  03/09/2026 05 PM PDT           27.36           1345         0              Normal
  03/09/2026 06 PM PDT           27.35           1339         -              Normal
  03/09/2026 07 PM PDT           27.35           1339         0              Normal
  03/09/2026 08 PM PDT           27.34           1334         -              Normal
  03/09/2026 09 PM PDT           27.34           1334         0              Normal
  03/09/2026 10 PM PDT           27.33           1328         -              Normal
  03/09/2026 11 PM PDT           27.33           1328         0              Normal
  03/10/2026 12 AM PDT           27.32           1322         -              Normal
  03/10/2026 01 AM PDT           27.32           1322         0              Normal
  03/10/2026 02 AM PDT           27.31           1316         -              Normal
  03/10/2026 03 AM PDT           27.31           1316         0              Normal
  03/10/2026 04 AM PDT           27.30           1310         -              Normal
  03/10/2026 05 AM PDT           27.30           1310         0              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.