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DRY CREEK - GEYSERVILLE (DGYC1)
| Latitude: 38.70º N | Longitude: 122.96º W | Elevation: 158 Feet | | Forecast Type: Unofficial Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Aug 19 2026 at 6:45 AM PDT | Next Issuance: | Aug 20 2026 at 9:00 AM PDT
| |
| Action/Monitor: 10.0 Feet | Minor Flood: 15.0 Feet | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Dry Creek - Geyserville (DGYC1)
#
# File Generation Time: 08/19/2026 at 06:46 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/14/2026 at 11:00 AM PDT
# Maximum Observed Stage: 1.15 Feet
# Maximum Observed Flow: 100 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/19/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 0.94 Feet
# Maximum Forecast Flow: 87 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/14/2026 06 AM PDT 1.14 99 Normal
08/14/2026 07 AM PDT 1.14 99 0 Normal
08/14/2026 08 AM PDT 1.15 100 + Normal
08/14/2026 09 AM PDT 1.14 99 - Normal
08/14/2026 10 AM PDT 1.14 99 0 Normal
08/14/2026 11 AM PDT 1.15 100 + Normal
08/14/2026 12 PM PDT 1.13 99 - Normal
08/14/2026 01 PM PDT 1.14 99 + Normal
08/14/2026 02 PM PDT 1.14 99 0 Normal
08/14/2026 03 PM PDT 1.11 98 - Normal
08/14/2026 04 PM PDT 1.10 97 - Normal
08/14/2026 05 PM PDT 1.09 96 - Normal
08/14/2026 06 PM PDT 1.07 95 - Normal
08/14/2026 07 PM PDT 1.09 96 + Normal
08/14/2026 08 PM PDT 1.07 95 - Normal
08/14/2026 09 PM PDT 1.08 96 + Normal
08/14/2026 10 PM PDT 1.08 96 0 Normal
08/14/2026 11 PM PDT 1.07 95 - Normal
08/15/2026 12 AM PDT 1.08 96 + Normal
08/15/2026 01 AM PDT 1.09 96 + Normal
08/15/2026 02 AM PDT 1.08 96 - Normal
08/15/2026 03 AM PDT 1.07 95 - Normal
08/15/2026 04 AM PDT 1.08 96 + Normal
08/15/2026 05 AM PDT 1.09 96 + Normal
08/15/2026 06 AM PDT 1.08 96 - Normal
08/15/2026 07 AM PDT 1.07 95 - Normal
08/15/2026 08 AM PDT 1.07 95 0 Normal
08/15/2026 09 AM PDT 1.08 96 + Normal
08/15/2026 10 AM PDT 1.09 96 + Normal
08/15/2026 11 AM PDT 1.09 96 0 Normal
08/15/2026 12 PM PDT 1.08 96 - Normal
08/15/2026 01 PM PDT 1.08 96 0 Normal
08/15/2026 02 PM PDT 1.09 96 + Normal
08/15/2026 03 PM PDT 1.08 96 - Normal
08/15/2026 04 PM PDT 1.08 96 0 Normal
08/15/2026 05 PM PDT 1.08 96 0 Normal
08/15/2026 06 PM PDT 1.09 96 + Normal
08/15/2026 07 PM PDT 1.08 96 - Normal
08/15/2026 08 PM PDT 1.08 96 0 Normal
08/15/2026 09 PM PDT 1.09 96 + Normal
08/15/2026 10 PM PDT 1.08 96 - Normal
08/15/2026 11 PM PDT 1.08 96 0 Normal
08/16/2026 12 AM PDT 1.09 96 + Normal
08/16/2026 01 AM PDT 1.08 96 - Normal
08/16/2026 02 AM PDT 1.08 96 0 Normal
08/16/2026 03 AM PDT 1.09 96 + Normal
08/16/2026 04 AM PDT 1.09 96 0 Normal
08/16/2026 05 AM PDT 1.08 96 - Normal
08/16/2026 06 AM PDT 1.08 96 0 Normal
08/16/2026 07 AM PDT 1.09 96 + Normal
08/16/2026 08 AM PDT 1.09 96 0 Normal
08/16/2026 09 AM PDT 1.09 96 0 Normal
08/16/2026 10 AM PDT 1.09 96 0 Normal
08/16/2026 11 AM PDT 1.08 96 - Normal
08/16/2026 12 PM PDT 1.07 95 - Normal
08/16/2026 01 PM PDT 1.09 96 + Normal
08/16/2026 02 PM PDT 1.06 95 - Normal
08/16/2026 03 PM PDT 1.07 95 + Normal
08/16/2026 04 PM PDT 1.08 96 + Normal
08/16/2026 05 PM PDT 1.07 95 - Normal
08/16/2026 06 PM PDT 1.08 96 + Normal
08/16/2026 07 PM PDT 1.08 96 0 Normal
08/16/2026 08 PM PDT 1.07 95 - Normal
08/16/2026 09 PM PDT 1.08 96 + Normal
08/16/2026 10 PM PDT 1.09 96 + Normal
08/16/2026 11 PM PDT 1.07 95 - Normal
08/17/2026 12 AM PDT 1.09 96 + Normal
08/17/2026 01 AM PDT 1.08 96 - Normal
08/17/2026 02 AM PDT 1.08 96 0 Normal
08/17/2026 03 AM PDT 1.07 95 - Normal
08/17/2026 04 AM PDT 1.07 95 0 Normal
08/17/2026 05 AM PDT 1.07 95 0 Normal
08/17/2026 06 AM PDT 1.08 96 + Normal
08/17/2026 07 AM PDT 1.08 96 0 Normal
08/17/2026 08 AM PDT 1.08 96 0 Normal
08/17/2026 09 AM PDT 1.08 96 0 Normal
08/17/2026 10 AM PDT 1.08 96 0 Normal
08/17/2026 11 AM PDT 1.07 95 - Normal
08/17/2026 12 PM PDT 1.08 96 + Normal
08/17/2026 01 PM PDT 1.07 95 - Normal
08/17/2026 02 PM PDT 1.07 95 0 Normal
08/17/2026 03 PM PDT 1.07 95 0 Normal
08/17/2026 04 PM PDT 1.04 93 - Normal
08/17/2026 05 PM PDT 1.00 91 - Normal
08/17/2026 06 PM PDT 0.96 89 - Normal
08/17/2026 07 PM PDT 0.97 89 + Normal
08/17/2026 08 PM PDT 0.95 88 - Normal
08/17/2026 09 PM PDT 0.96 89 + Normal
08/17/2026 10 PM PDT 0.96 89 0 Normal
08/17/2026 11 PM PDT 0.95 88 - Normal
08/18/2026 12 AM PDT 0.95 88 0 Normal
08/18/2026 01 AM PDT 0.95 88 0 Normal
08/18/2026 02 AM PDT 0.95 88 0 Normal
08/18/2026 03 AM PDT 0.96 89 + Normal
08/18/2026 04 AM PDT 0.96 89 0 Normal
08/18/2026 05 AM PDT 0.95 88 - Normal
08/18/2026 06 AM PDT 0.95 88 0 Normal
08/18/2026 07 AM PDT 0.95 88 0 Normal
08/18/2026 08 AM PDT 0.95 88 0 Normal
08/18/2026 09 AM PDT 0.95 88 0 Normal
08/18/2026 10 AM PDT 0.95 88 0 Normal
08/18/2026 11 AM PDT 0.94 87 - Normal
08/18/2026 12 PM PDT 0.95 88 + Normal
08/18/2026 01 PM PDT 0.94 87 - Normal
08/18/2026 02 PM PDT 0.93 87 - Normal
08/18/2026 03 PM PDT 0.95 88 + Normal
08/18/2026 04 PM PDT 0.93 87 - Normal
08/18/2026 05 PM PDT 0.94 87 + Normal
08/18/2026 06 PM PDT 0.95 88 + Normal
08/18/2026 07 PM PDT 0.94 87 - Normal
08/18/2026 08 PM PDT 0.95 88 + Normal
08/18/2026 09 PM PDT 0.94 87 - Normal
08/18/2026 10 PM PDT 0.95 88 + Normal
08/18/2026 11 PM PDT 0.94 87 - Normal
08/19/2026 12 AM PDT 0.95 88 + Normal
08/19/2026 01 AM PDT 0.94 87 - Normal
08/19/2026 02 AM PDT 0.93 87 - Normal
08/19/2026 03 AM PDT 0.95 88 + Normal
08/19/2026 04 AM PDT 0.94 87 - Normal
08/19/2026 05 AM PDT 0.95 88 + Normal
08/19/2026 06 AM PDT 0.94 87 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/19/2026 07 AM PDT 0.94 87 Normal
08/19/2026 08 AM PDT 0.94 87 0 Normal
08/19/2026 09 AM PDT 0.94 87 0 Normal
08/19/2026 10 AM PDT 0.94 87 0 Normal
08/19/2026 11 AM PDT 0.94 87 0 Normal
08/19/2026 12 PM PDT 0.94 87 0 Normal
08/19/2026 01 PM PDT 0.94 87 0 Normal
08/19/2026 02 PM PDT 0.94 87 0 Normal
08/19/2026 03 PM PDT 0.94 87 0 Normal
08/19/2026 04 PM PDT 0.94 87 0 Normal
08/19/2026 05 PM PDT 0.94 87 0 Normal
08/19/2026 06 PM PDT 0.94 87 0 Normal
08/19/2026 07 PM PDT 0.94 87 0 Normal
08/19/2026 08 PM PDT 0.94 87 0 Normal
08/19/2026 09 PM PDT 0.94 87 0 Normal
08/19/2026 10 PM PDT 0.94 87 0 Normal
08/19/2026 11 PM PDT 0.94 87 0 Normal
08/20/2026 12 AM PDT 0.94 87 0 Normal
08/20/2026 01 AM PDT 0.94 87 0 Normal
08/20/2026 02 AM PDT 0.94 87 0 Normal
08/20/2026 03 AM PDT 0.94 87 0 Normal
08/20/2026 04 AM PDT 0.94 87 0 Normal
08/20/2026 05 AM PDT 0.94 87 0 Normal
08/20/2026 06 AM PDT 0.94 87 0 Normal
08/20/2026 07 AM PDT 0.94 87 0 Normal
08/20/2026 08 AM PDT 0.94 87 0 Normal
08/20/2026 09 AM PDT 0.94 87 0 Normal
08/20/2026 10 AM PDT 0.94 87 0 Normal
08/20/2026 11 AM PDT 0.94 87 0 Normal
08/20/2026 12 PM PDT 0.94 87 0 Normal
08/20/2026 01 PM PDT 0.94 87 0 Normal
08/20/2026 02 PM PDT 0.94 87 0 Normal
08/20/2026 03 PM PDT 0.94 87 0 Normal
08/20/2026 04 PM PDT 0.94 87 0 Normal
08/20/2026 05 PM PDT 0.94 87 0 Normal
08/20/2026 06 PM PDT 0.94 87 0 Normal
08/20/2026 07 PM PDT 0.94 87 0 Normal
08/20/2026 08 PM PDT 0.94 87 0 Normal
08/20/2026 09 PM PDT 0.94 87 0 Normal
08/20/2026 10 PM PDT 0.94 87 0 Normal
08/20/2026 11 PM PDT 0.94 87 0 Normal
08/21/2026 12 AM PDT 0.94 87 0 Normal
08/21/2026 01 AM PDT 0.94 87 0 Normal
08/21/2026 02 AM PDT 0.94 87 0 Normal
08/21/2026 03 AM PDT 0.94 87 0 Normal
08/21/2026 04 AM PDT 0.94 87 0 Normal
08/21/2026 05 AM PDT 0.94 87 0 Normal
08/21/2026 06 AM PDT 0.94 87 0 Normal
08/21/2026 07 AM PDT 0.94 87 0 Normal
08/21/2026 08 AM PDT 0.94 87 0 Normal
08/21/2026 09 AM PDT 0.94 87 0 Normal
08/21/2026 10 AM PDT 0.94 87 0 Normal
08/21/2026 11 AM PDT 0.94 87 0 Normal
08/21/2026 12 PM PDT 0.94 87 0 Normal
08/21/2026 01 PM PDT 0.94 87 0 Normal
08/21/2026 02 PM PDT 0.94 87 0 Normal
08/21/2026 03 PM PDT 0.94 87 0 Normal
08/21/2026 04 PM PDT 0.94 87 0 Normal
08/21/2026 05 PM PDT 0.94 87 0 Normal
08/21/2026 06 PM PDT 0.94 87 0 Normal
08/21/2026 07 PM PDT 0.94 87 0 Normal
08/21/2026 08 PM PDT 0.94 87 0 Normal
08/21/2026 09 PM PDT 0.94 87 0 Normal
08/21/2026 10 PM PDT 0.94 87 0 Normal
08/21/2026 11 PM PDT 0.94 87 0 Normal
08/22/2026 12 AM PDT 0.94 87 0 Normal
08/22/2026 01 AM PDT 0.94 87 0 Normal
08/22/2026 02 AM PDT 0.94 87 0 Normal
08/22/2026 03 AM PDT 0.94 87 0 Normal
08/22/2026 04 AM PDT 0.94 87 0 Normal
08/22/2026 05 AM PDT 0.94 87 0 Normal
08/22/2026 06 AM PDT 0.94 87 0 Normal
08/22/2026 07 AM PDT 0.94 87 0 Normal
08/22/2026 08 AM PDT 0.94 87 0 Normal
08/22/2026 09 AM PDT 0.94 87 0 Normal
08/22/2026 10 AM PDT 0.94 87 0 Normal
08/22/2026 11 AM PDT 0.94 87 0 Normal
08/22/2026 12 PM PDT 0.94 87 0 Normal
08/22/2026 01 PM PDT 0.94 87 0 Normal
08/22/2026 02 PM PDT 0.94 87 0 Normal
08/22/2026 03 PM PDT 0.94 87 0 Normal
08/22/2026 04 PM PDT 0.94 87 0 Normal
08/22/2026 05 PM PDT 0.94 87 0 Normal
08/22/2026 06 PM PDT 0.94 87 0 Normal
08/22/2026 07 PM PDT 0.94 87 0 Normal
08/22/2026 08 PM PDT 0.94 87 0 Normal
08/22/2026 09 PM PDT 0.94 87 0 Normal
08/22/2026 10 PM PDT 0.94 87 0 Normal
08/22/2026 11 PM PDT 0.94 87 0 Normal
08/23/2026 12 AM PDT 0.94 87 0 Normal
08/23/2026 01 AM PDT 0.94 87 0 Normal
08/23/2026 02 AM PDT 0.94 87 0 Normal
08/23/2026 03 AM PDT 0.94 87 0 Normal
08/23/2026 04 AM PDT 0.94 87 0 Normal
08/23/2026 05 AM PDT 0.94 87 0 Normal
08/23/2026 06 AM PDT 0.94 87 0 Normal
08/23/2026 07 AM PDT 0.94 87 0 Normal
08/23/2026 08 AM PDT 0.94 87 0 Normal
08/23/2026 09 AM PDT 0.94 87 0 Normal
08/23/2026 10 AM PDT 0.94 87 0 Normal
08/23/2026 11 AM PDT 0.94 87 0 Normal
08/23/2026 12 PM PDT 0.94 87 0 Normal
08/23/2026 01 PM PDT 0.94 87 0 Normal
08/23/2026 02 PM PDT 0.94 87 0 Normal
08/23/2026 03 PM PDT 0.94 87 0 Normal
08/23/2026 04 PM PDT 0.94 87 0 Normal
08/23/2026 05 PM PDT 0.94 87 0 Normal
08/23/2026 06 PM PDT 0.94 87 0 Normal
08/23/2026 07 PM PDT 0.94 87 0 Normal
08/23/2026 08 PM PDT 0.94 87 0 Normal
08/23/2026 09 PM PDT 0.94 87 0 Normal
08/23/2026 10 PM PDT 0.94 87 0 Normal
08/23/2026 11 PM PDT 0.94 87 0 Normal
08/24/2026 12 AM PDT 0.94 87 0 Normal
08/24/2026 01 AM PDT 0.94 87 0 Normal
08/24/2026 02 AM PDT 0.94 87 0 Normal
08/24/2026 03 AM PDT 0.94 87 0 Normal
08/24/2026 04 AM PDT 0.94 87 0 Normal
08/24/2026 05 AM PDT 0.94 87 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.
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