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: Feb 18 2026 at 1:50 PM PSTNext Issuance: Feb 19 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:  02/18/2026 at 01:51 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/16/2026 at 04:00 AM PST
# Maximum Observed Stage:                       31.24 Feet
# Maximum Observed Flow:                        4086 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/23/2026 at 04:00 AM PST
# Maximum Forecast Stage:                       35.20 Feet
# Maximum Forecast Flow:                        9665 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/13/2026 01 PM PST           25.42            452                        Normal
  02/13/2026 02 PM PST           25.42            452         0              Normal
  02/13/2026 03 PM PST           25.42            452         0              Normal
  02/13/2026 04 PM PST           25.42            452         0              Normal
  02/13/2026 05 PM PST           25.42            452         0              Normal
  02/13/2026 06 PM PST           25.41            450         -              Normal
  02/13/2026 07 PM PST           25.40            447         -              Normal
  02/13/2026 08 PM PST           25.40            447         0              Normal
  02/13/2026 09 PM PST           25.41            450         +              Normal
  02/13/2026 10 PM PST           25.40            447         -              Normal
  02/13/2026 11 PM PST           25.40            447         0              Normal
  02/14/2026 12 AM PST           25.40            447         0              Normal
  02/14/2026 01 AM PST           25.40            447         0              Normal
  02/14/2026 02 AM PST           25.39            444         -              Normal
  02/14/2026 03 AM PST           25.39            444         0              Normal
  02/14/2026 04 AM PST           25.39            444         0              Normal
  02/14/2026 05 AM PST           25.39            444         0              Normal
  02/14/2026 06 AM PST           25.38            441         -              Normal
  02/14/2026 07 AM PST           25.39            444         +              Normal
  02/14/2026 08 AM PST           25.39            444         0              Normal
  02/14/2026 09 AM PST           25.39            444         0              Normal
  02/14/2026 10 AM PST           25.38            441         -              Normal
  02/14/2026 11 AM PST           25.39            444         +              Normal
  02/14/2026 12 PM PST           25.38            441         -              Normal
  02/14/2026 01 PM PST           25.38            441         0              Normal
  02/14/2026 02 PM PST           25.38            441         0              Normal
  02/14/2026 03 PM PST           25.39            444         +              Normal
  02/14/2026 04 PM PST           25.38            441         -              Normal
  02/14/2026 05 PM PST           25.38            441         0              Normal
  02/14/2026 06 PM PST           25.38            441         0              Normal
  02/14/2026 07 PM PST           25.37            438         -              Normal
  02/14/2026 08 PM PST           25.37            438         0              Normal
  02/14/2026 09 PM PST           25.37            438         0              Normal
  02/14/2026 10 PM PST           25.37            438         0              Normal
  02/14/2026 11 PM PST           25.37            438         0              Normal
  02/15/2026 12 AM PST           25.37            438         0              Normal
  02/15/2026 01 AM PST           25.38            441         +              Normal
  02/15/2026 02 AM PST           25.38            441         0              Normal
  02/15/2026 03 AM PST           25.37            438         -              Normal
  02/15/2026 04 AM PST           25.39            444         +              Normal
  02/15/2026 05 AM PST           25.40            447         +              Normal
  02/15/2026 06 AM PST           25.39            444         -              Normal
  02/15/2026 07 AM PST           25.41            450         +              Normal
  02/15/2026 08 AM PST           25.41            450         0              Normal
  02/15/2026 09 AM PST           25.42            452         +              Normal
  02/15/2026 10 AM PST           25.44            458         +              Normal
  02/15/2026 11 AM PST           25.45            461         +              Normal
  02/15/2026 12 PM PST           25.46            464         +              Normal
  02/15/2026 01 PM PST           25.48            470         +              Normal
  02/15/2026 02 PM PST           25.50            476         +              Normal
  02/15/2026 03 PM PST           25.57            497         +              Normal
  02/15/2026 04 PM PST           25.63            515         +              Normal
  02/15/2026 05 PM PST           25.69            533         +              Normal
  02/15/2026 06 PM PST           25.76            555         +              Normal
  02/15/2026 07 PM PST           26.13            701         +              Normal
  02/15/2026 08 PM PST           27.24           1275         +              Normal
  02/15/2026 09 PM PST           27.64           1515         +              Normal
  02/15/2026 10 PM PST           28.02           1758         +              Normal
  02/15/2026 11 PM PST           28.59           2100         +              Normal
  02/16/2026 12 AM PST           29.50           2698         +              Normal
  02/16/2026 01 AM PST           30.29           3286         +              Normal
  02/16/2026 02 AM PST           30.83           3725         +              Normal
  02/16/2026 03 AM PST           31.13           3987         +              Normal
  02/16/2026 04 AM PST           31.24           4086         +              Normal
  02/16/2026 05 AM PST           31.23           4077         -              Normal
  02/16/2026 06 AM PST           31.12           3978         -              Normal
  02/16/2026 07 AM PST           30.91           3794         -              Normal
  02/16/2026 08 AM PST           30.76           3665         -              Normal
  02/16/2026 09 AM PST           30.67           3591         -              Normal
  02/16/2026 10 AM PST           30.64           3566         -              Normal
  02/16/2026 11 AM PST           30.62           3550         -              Normal
  02/16/2026 12 PM PST           30.60           3534         -              Normal
  02/16/2026 01 PM PST           30.57           3509         -              Normal
  02/16/2026 02 PM PST           30.50           3453         -              Normal
  02/16/2026 03 PM PST           30.36           3341         -              Normal
  02/16/2026 04 PM PST           30.21           3223         -              Normal
  02/16/2026 05 PM PST           29.99           3053         -              Normal
  02/16/2026 06 PM PST           29.77           2887         -              Normal
  02/16/2026 07 PM PST           29.50           2698         -              Normal
  02/16/2026 08 PM PST           29.28           2548         -              Normal
  02/16/2026 09 PM PST           29.09           2421         -              Normal
  02/16/2026 10 PM PST           28.92           2310         -              Normal
  02/16/2026 11 PM PST           28.75           2201         -              Normal
  02/17/2026 12 AM PST           28.60           2107         -              Normal
  02/17/2026 01 AM PST           28.46           2020         -              Normal
  02/17/2026 02 AM PST           28.38           1971         -              Normal
  02/17/2026 03 AM PST           28.28           1911         -              Normal
  02/17/2026 04 AM PST           28.17           1845         -              Normal
  02/17/2026 05 AM PST           28.09           1799         -              Normal
  02/17/2026 06 AM PST           28.00           1746         -              Normal
  02/17/2026 07 AM PST           27.96           1720         -              Normal
  02/17/2026 08 AM PST           27.95           1713         -              Normal
  02/17/2026 09 AM PST           28.04           1769         +              Normal
  02/17/2026 10 AM PST           28.06           1781         +              Normal
  02/17/2026 11 AM PST           28.16           1840         +              Normal
  02/17/2026 12 PM PST           28.31           1929         +              Normal
  02/17/2026 01 PM PST           28.49           2038         +              Normal
  02/17/2026 02 PM PST           28.69           2163         +              Normal
  02/17/2026 03 PM PST           28.86           2271         +              Normal
  02/17/2026 04 PM PST           28.97           2342         +              Normal
  02/17/2026 05 PM PST           29.07           2408         +              Normal
  02/17/2026 06 PM PST           29.17           2474         +              Normal
  02/17/2026 07 PM PST           29.24           2521         +              Normal
  02/17/2026 08 PM PST           29.29           2555         +              Normal
  02/17/2026 09 PM PST           29.34           2589         +              Normal
  02/17/2026 10 PM PST           29.44           2657         +              Normal
  02/17/2026 11 PM PST           29.55           2733         +              Normal
  02/18/2026 12 AM PST           29.61           2774         +              Normal
  02/18/2026 01 AM PST           29.69           2831         +              Normal
  02/18/2026 02 AM PST           29.76           2880         +              Normal
  02/18/2026 03 AM PST           29.84           2940         +              Normal
  02/18/2026 04 AM PST           29.86           2955         +              Normal
  02/18/2026 05 AM PST           29.86           2955         0              Normal
  02/18/2026 06 AM PST           29.83           2932         -              Normal
  02/18/2026 07 AM PST           29.78           2895         -              Normal
  02/18/2026 08 AM PST           29.71           2845         -              Normal
  02/18/2026 09 AM PST           29.67           2816         -              Normal
  02/18/2026 10 AM PST           29.63           2788         -              Normal
  02/18/2026 11 AM PST           29.58           2754         -              Normal
  02/18/2026 12 PM PST           29.52           2712         -              Normal
  02/18/2026 01 PM PST           29.46           2670         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/18/2026 02 PM PST           29.38           2616                        Normal
  02/18/2026 03 PM PST           29.31           2568         -              Normal
  02/18/2026 04 PM PST           29.23           2514         -              Normal
  02/18/2026 05 PM PST           29.16           2468         -              Normal
  02/18/2026 06 PM PST           29.09           2421         -              Normal
  02/18/2026 07 PM PST           29.04           2388         -              Normal
  02/18/2026 08 PM PST           29.00           2362         -              Normal
  02/18/2026 09 PM PST           28.98           2349         -              Normal
  02/18/2026 10 PM PST           28.97           2342         -              Normal
  02/18/2026 11 PM PST           28.97           2342         0              Normal
  02/19/2026 12 AM PST           28.95           2329         -              Normal
  02/19/2026 01 AM PST           28.93           2316         -              Normal
  02/19/2026 02 AM PST           28.89           2291         -              Normal
  02/19/2026 03 AM PST           28.87           2278         -              Normal
  02/19/2026 04 AM PST           28.89           2291         +              Normal
  02/19/2026 05 AM PST           29.00           2362         +              Normal
  02/19/2026 06 AM PST           29.21           2501         +              Normal
  02/19/2026 07 AM PST           29.46           2670         +              Normal
  02/19/2026 08 AM PST           29.78           2895         +              Normal
  02/19/2026 09 AM PST           30.00           3061         +              Normal
  02/19/2026 10 AM PST           30.19           3207         +              Normal
  02/19/2026 11 AM PST           30.36           3341         +              Normal
  02/19/2026 12 PM PST           30.57           3509         +              Normal
  02/19/2026 01 PM PST           30.79           3691         +              Normal
  02/19/2026 02 PM PST           31.01           3881         +              Normal
  02/19/2026 03 PM PST           31.20           4050         +              Normal
  02/19/2026 04 PM PST           31.31           4150         +              Normal
  02/19/2026 05 PM PST           31.33           4168         +              Normal
  02/19/2026 06 PM PST           31.27           4113         -              Normal
  02/19/2026 07 PM PST           31.17           4023         -              Normal
  02/19/2026 08 PM PST           31.07           3934         -              Normal
  02/19/2026 09 PM PST           30.96           3837         -              Normal
  02/19/2026 10 PM PST           30.84           3734         -              Normal
  02/19/2026 11 PM PST           30.71           3624         -              Normal
  02/20/2026 12 AM PST           30.57           3509         -              Normal
  02/20/2026 01 AM PST           30.43           3397         -              Normal
  02/20/2026 02 AM PST           30.29           3286         -              Normal
  02/20/2026 03 AM PST           30.16           3184         -              Normal
  02/20/2026 04 AM PST           30.04           3091         -              Normal
  02/20/2026 05 AM PST           29.91           2992         -              Normal
  02/20/2026 06 AM PST           29.79           2902         -              Normal
  02/20/2026 07 AM PST           29.67           2816         -              Normal
  02/20/2026 08 AM PST           29.55           2733         -              Normal
  02/20/2026 09 AM PST           29.46           2670         -              Normal
  02/20/2026 10 AM PST           29.35           2595         -              Normal
  02/20/2026 11 AM PST           29.24           2521         -              Normal
  02/20/2026 12 PM PST           29.14           2454         -              Normal
  02/20/2026 01 PM PST           29.03           2382         -              Normal
  02/20/2026 02 PM PST           28.93           2316         -              Normal
  02/20/2026 03 PM PST           28.84           2258         -              Normal
  02/20/2026 04 PM PST           28.75           2201         -              Normal
  02/20/2026 05 PM PST           28.66           2144         -              Normal
  02/20/2026 06 PM PST           28.58           2094         -              Normal
  02/20/2026 07 PM PST           28.50           2045         -              Normal
  02/20/2026 08 PM PST           28.43           2002         -              Normal
  02/20/2026 09 PM PST           28.39           1977         -              Normal
  02/20/2026 10 PM PST           28.33           1941         -              Normal
  02/20/2026 11 PM PST           28.27           1905         -              Normal
  02/21/2026 12 AM PST           28.20           1863         -              Normal
  02/21/2026 01 AM PST           28.15           1834         -              Normal
  02/21/2026 02 AM PST           28.09           1799         -              Normal
  02/21/2026 03 AM PST           28.04           1769         -              Normal
  02/21/2026 04 AM PST           27.99           1740         -              Normal
  02/21/2026 05 AM PST           27.94           1707         -              Normal
  02/21/2026 06 AM PST           27.90           1681         -              Normal
  02/21/2026 07 AM PST           27.86           1655         -              Normal
  02/21/2026 08 AM PST           27.82           1629         -              Normal
  02/21/2026 09 AM PST           27.78           1604         -              Normal
  02/21/2026 10 AM PST           27.74           1578         -              Normal
  02/21/2026 11 AM PST           27.71           1559         -              Normal
  02/21/2026 12 PM PST           27.67           1534         -              Normal
  02/21/2026 01 PM PST           27.64           1515         -              Normal
  02/21/2026 02 PM PST           27.61           1497         -              Normal
  02/21/2026 03 PM PST           27.58           1478         -              Normal
  02/21/2026 04 PM PST           27.55           1460         -              Normal
  02/21/2026 05 PM PST           27.52           1442         -              Normal
  02/21/2026 06 PM PST           27.49           1423         -              Normal
  02/21/2026 07 PM PST           27.47           1411         -              Normal
  02/21/2026 08 PM PST           27.45           1399         -              Normal
  02/21/2026 09 PM PST           27.43           1387         -              Normal
  02/21/2026 10 PM PST           27.42           1381         -              Normal
  02/21/2026 11 PM PST           27.43           1387         +              Normal
  02/22/2026 12 AM PST           27.48           1417         +              Normal
  02/22/2026 01 AM PST           27.57           1472         +              Normal
  02/22/2026 02 AM PST           27.69           1547         +              Normal
  02/22/2026 03 AM PST           27.87           1661         +              Normal
  02/22/2026 04 AM PST           28.13           1822         +              Normal
  02/22/2026 05 AM PST           28.70           2169         +              Normal
  02/22/2026 06 AM PST           29.47           2677         +              Normal
  02/22/2026 07 AM PST           30.42           3389         +              Normal
  02/22/2026 08 AM PST           31.05           3916         +              Normal
  02/22/2026 09 AM PST           31.60           4420         +              Normal
  02/22/2026 10 AM PST           32.04           4920         +              Normal
  02/22/2026 11 AM PST           32.47           5444         +              Normal
  02/22/2026 12 PM PST           32.86           5951         +              Normal
  02/22/2026 01 PM PST           33.20           6418         +              Normal
  02/22/2026 02 PM PST           33.50           6850         +              Normal
  02/22/2026 03 PM PST           33.76           7239         +              Normal
  02/22/2026 04 PM PST           33.98           7580         +              Normal
  02/22/2026 05 PM PST           34.19           7915         +              Normal
  02/22/2026 06 PM PST           34.38           8227         +              Normal
  02/22/2026 07 PM PST           34.54           8495         +              Normal
  02/22/2026 08 PM PST           34.67           8718         +              Normal
  02/22/2026 09 PM PST           34.78           8909         +              Normal
  02/22/2026 10 PM PST           34.88           9086         +              Normal
  02/22/2026 11 PM PST           34.96           9228         +              Normal
  02/23/2026 12 AM PST           35.03           9354         +              Normal
  02/23/2026 01 AM PST           35.09           9463         +              Normal
  02/23/2026 02 AM PST           35.13           9537         +              Normal
  02/23/2026 03 AM PST           35.17           9610         +              Normal
  02/23/2026 04 AM PST           35.20           9665         +              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.