National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 | 

NORTH FORK STANISLAUS RIVER - AVERY (AVYC1)
Latitude: 38.24º NLongitude: 120.29º WElevation: 3388 FeetForecast Type: Unofficial Location
Location: Calaveras County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: May 01 2026 at 8:06 AM PDTNext Issuance: May 02 2026 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: N Fork Stanislaus River - Avery (AVYC1)
#
# File Generation Time:  05/01/2026 at 08:08 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/27/2026 at 04:00 AM PDT
# Maximum Observed Stage:                       3.70 Feet
# Maximum Observed Flow:                        599 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/04/2026 at 01:00 AM PDT
# Maximum Forecast Stage:                       3.83 Feet
# Maximum Forecast Flow:                        658 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/26/2026 08 AM PDT            3.70            599                Not Applicable
  04/26/2026 09 AM PDT            3.66            581         -      Not Applicable
  04/26/2026 10 AM PDT            3.63            568         -      Not Applicable
  04/26/2026 11 AM PDT            3.64            572         +      Not Applicable
  04/26/2026 12 PM PDT            3.62            564         -      Not Applicable
  04/26/2026 01 PM PDT            3.59            551         -      Not Applicable
  04/26/2026 02 PM PDT            3.58            547         -      Not Applicable
  04/26/2026 03 PM PDT            3.58            547         0      Not Applicable
  04/26/2026 04 PM PDT            3.59            551         +      Not Applicable
  04/26/2026 05 PM PDT            3.58            547         -      Not Applicable
  04/26/2026 06 PM PDT            3.56            538         -      Not Applicable
  04/26/2026 07 PM PDT            3.58            547         +      Not Applicable
  04/26/2026 08 PM PDT            3.58            547         0      Not Applicable
  04/26/2026 09 PM PDT            3.60            555         +      Not Applicable
  04/26/2026 10 PM PDT            3.63            568         +      Not Applicable
  04/26/2026 11 PM PDT            3.66            581         +      Not Applicable
  04/27/2026 12 AM PDT            3.65            577         -      Not Applicable
  04/27/2026 01 AM PDT            3.65            577         0      Not Applicable
  04/27/2026 02 AM PDT            3.66            581         +      Not Applicable
  04/27/2026 03 AM PDT            3.64            572         -      Not Applicable
  04/27/2026 04 AM PDT            3.70            599         +      Not Applicable
  04/27/2026 05 AM PDT            3.69            594         -      Not Applicable
  04/27/2026 06 AM PDT            3.69            594         0      Not Applicable
  04/27/2026 07 AM PDT            3.64            572         -      Not Applicable
  04/27/2026 08 AM PDT            3.63            568         -      Not Applicable
  04/27/2026 09 AM PDT            3.63            568         0      Not Applicable
  04/27/2026 10 AM PDT            3.61            559         -      Not Applicable
  04/27/2026 11 AM PDT            3.60            555         -      Not Applicable
  04/27/2026 12 PM PDT            3.56            538         -      Not Applicable
  04/27/2026 01 PM PDT            3.54            530         -      Not Applicable
  04/27/2026 02 PM PDT            3.55            534         +      Not Applicable
  04/27/2026 03 PM PDT            3.54            530         -      Not Applicable
  04/27/2026 04 PM PDT            3.50            514         -      Not Applicable
  04/27/2026 05 PM PDT            3.50            514         0      Not Applicable
  04/27/2026 06 PM PDT            3.52            522         +      Not Applicable
  04/27/2026 07 PM PDT            3.52            522         0      Not Applicable
  04/27/2026 08 PM PDT            3.54            530         +      Not Applicable
  04/27/2026 09 PM PDT            3.52            522         -      Not Applicable
  04/27/2026 10 PM PDT            3.52            522         0      Not Applicable
  04/27/2026 11 PM PDT            3.54            530         +      Not Applicable
  04/28/2026 12 AM PDT            3.54            530         0      Not Applicable
  04/28/2026 01 AM PDT            3.54            530         0      Not Applicable
  04/28/2026 02 AM PDT            3.54            530         0      Not Applicable
  04/28/2026 03 AM PDT            3.58            547         +      Not Applicable
  04/28/2026 04 AM PDT            3.52            522         -      Not Applicable
  04/28/2026 05 AM PDT            3.54            530         +      Not Applicable
  04/28/2026 06 AM PDT            3.52            522         -      Not Applicable
  04/28/2026 07 AM PDT            3.52            522         0      Not Applicable
  04/28/2026 08 AM PDT            3.48            506         -      Not Applicable
  04/28/2026 09 AM PDT            3.46            498         -      Not Applicable
  04/28/2026 10 AM PDT            3.46            498         0      Not Applicable
  04/28/2026 11 AM PDT            3.45            494         -      Not Applicable
  04/28/2026 12 PM PDT            3.43            486         -      Not Applicable
  04/28/2026 01 PM PDT            3.43            486         0      Not Applicable
  04/28/2026 02 PM PDT            3.40            475         -      Not Applicable
  04/28/2026 03 PM PDT            3.41            479         +      Not Applicable
  04/28/2026 04 PM PDT            3.40            475         -      Not Applicable
  04/28/2026 05 PM PDT            3.39            471         -      Not Applicable
  04/28/2026 06 PM PDT            3.39            471         0      Not Applicable
  04/28/2026 07 PM PDT            3.36            460         -      Not Applicable
  04/28/2026 08 PM PDT            3.37            463         +      Not Applicable
  04/28/2026 09 PM PDT            3.35            456         -      Not Applicable
  04/28/2026 10 PM PDT            3.35            456         0      Not Applicable
  04/28/2026 11 PM PDT            3.34            452         -      Not Applicable
  04/29/2026 12 AM PDT            3.35            456         +      Not Applicable
  04/29/2026 01 AM PDT            3.35            456         0      Not Applicable
  04/29/2026 02 AM PDT            3.37            463         +      Not Applicable
  04/29/2026 03 AM PDT            3.38            467         +      Not Applicable
  04/29/2026 04 AM PDT            3.40            475         +      Not Applicable
  04/29/2026 05 AM PDT            3.40            475         0      Not Applicable
  04/29/2026 06 AM PDT            3.41            479         +      Not Applicable
  04/29/2026 07 AM PDT            3.38            467         -      Not Applicable
  04/29/2026 08 AM PDT            3.39            471         +      Not Applicable
  04/29/2026 09 AM PDT            3.36            460         -      Not Applicable
  04/29/2026 10 AM PDT            3.37            463         +      Not Applicable
  04/29/2026 11 AM PDT            3.38            467         +      Not Applicable
  04/29/2026 12 PM PDT            3.35            456         -      Not Applicable
  04/29/2026 01 PM PDT            3.33            448         -      Not Applicable
  04/29/2026 02 PM PDT            3.32            445         -      Not Applicable
  04/29/2026 03 PM PDT            3.31            441         -      Not Applicable
  04/29/2026 04 PM PDT            3.30            438         -      Not Applicable
  04/29/2026 05 PM PDT            3.29            434         -      Not Applicable
  04/29/2026 06 PM PDT            3.29            434         0      Not Applicable
  04/29/2026 07 PM PDT            3.28            430         -      Not Applicable
  04/29/2026 08 PM PDT            3.28            430         0      Not Applicable
  04/29/2026 09 PM PDT            3.27            427         -      Not Applicable
  04/29/2026 10 PM PDT            3.25            420         -      Not Applicable
  04/29/2026 11 PM PDT            3.25            420         0      Not Applicable
  04/30/2026 12 AM PDT            3.25            420         0      Not Applicable
  04/30/2026 01 AM PDT            3.27            427         +      Not Applicable
  04/30/2026 02 AM PDT            3.27            427         0      Not Applicable
  04/30/2026 03 AM PDT            3.29            434         +      Not Applicable
  04/30/2026 04 AM PDT            3.33            448         +      Not Applicable
  04/30/2026 05 AM PDT            3.35            456         +      Not Applicable
  04/30/2026 06 AM PDT            3.35            456         0      Not Applicable
  04/30/2026 07 AM PDT            3.33            448         -      Not Applicable
  04/30/2026 08 AM PDT            3.32            445         -      Not Applicable
  04/30/2026 09 AM PDT            3.30            438         -      Not Applicable
  04/30/2026 10 AM PDT            3.29            434         -      Not Applicable
  04/30/2026 11 AM PDT            3.29            434         0      Not Applicable
  04/30/2026 12 PM PDT            3.29            434         0      Not Applicable
  04/30/2026 01 PM PDT            3.29            434         0      Not Applicable
  04/30/2026 02 PM PDT            3.27            427         -      Not Applicable
  04/30/2026 03 PM PDT            3.24            416         -      Not Applicable
  04/30/2026 04 PM PDT            3.25            420         +      Not Applicable
  04/30/2026 05 PM PDT            3.23            413         -      Not Applicable
  04/30/2026 06 PM PDT            3.21            406         -      Not Applicable
  04/30/2026 07 PM PDT            3.21            406         0      Not Applicable
  04/30/2026 08 PM PDT            3.19            399         -      Not Applicable
  04/30/2026 09 PM PDT            3.19            399         0      Not Applicable
  04/30/2026 10 PM PDT            3.18            395         -      Not Applicable
  04/30/2026 11 PM PDT            3.17            392         -      Not Applicable
  05/01/2026 12 AM PDT            3.20            402         +      Not Applicable
  05/01/2026 01 AM PDT            3.21            406         +      Not Applicable
  05/01/2026 02 AM PDT            3.21            406         0      Not Applicable
  05/01/2026 03 AM PDT            3.24            416         +      Not Applicable
  05/01/2026 04 AM PDT            3.24            416         0      Not Applicable
  05/01/2026 05 AM PDT            3.25            420         +      Not Applicable
  05/01/2026 06 AM PDT            3.27            427         +      Not Applicable
  05/01/2026 07 AM PDT            3.27            427         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/01/2026 08 AM PDT            3.27            427                Not Applicable
  05/01/2026 09 AM PDT            3.26            423         -      Not Applicable
  05/01/2026 10 AM PDT            3.25            420         -      Not Applicable
  05/01/2026 11 AM PDT            3.25            420         0      Not Applicable
  05/01/2026 12 PM PDT            3.24            416         -      Not Applicable
  05/01/2026 01 PM PDT            3.24            416         0      Not Applicable
  05/01/2026 02 PM PDT            3.24            416         0      Not Applicable
  05/01/2026 03 PM PDT            3.24            416         0      Not Applicable
  05/01/2026 04 PM PDT            3.25            420         +      Not Applicable
  05/01/2026 05 PM PDT            3.25            420         0      Not Applicable
  05/01/2026 06 PM PDT            3.26            423         +      Not Applicable
  05/01/2026 07 PM PDT            3.26            423         0      Not Applicable
  05/01/2026 08 PM PDT            3.27            427         +      Not Applicable
  05/01/2026 09 PM PDT            3.30            438         +      Not Applicable
  05/01/2026 10 PM PDT            3.34            452         +      Not Applicable
  05/01/2026 11 PM PDT            3.37            463         +      Not Applicable
  05/02/2026 12 AM PDT            3.38            467         +      Not Applicable
  05/02/2026 01 AM PDT            3.39            471         +      Not Applicable
  05/02/2026 02 AM PDT            3.40            475         +      Not Applicable
  05/02/2026 03 AM PDT            3.40            475         0      Not Applicable
  05/02/2026 04 AM PDT            3.40            475         0      Not Applicable
  05/02/2026 05 AM PDT            3.40            475         0      Not Applicable
  05/02/2026 06 AM PDT            3.39            471         -      Not Applicable
  05/02/2026 07 AM PDT            3.39            471         0      Not Applicable
  05/02/2026 08 AM PDT            3.38            467         -      Not Applicable
  05/02/2026 09 AM PDT            3.35            456         -      Not Applicable
  05/02/2026 10 AM PDT            3.32            445         -      Not Applicable
  05/02/2026 11 AM PDT            3.30            438         -      Not Applicable
  05/02/2026 12 PM PDT            3.28            430         -      Not Applicable
  05/02/2026 01 PM PDT            3.27            427         -      Not Applicable
  05/02/2026 02 PM PDT            3.26            423         -      Not Applicable
  05/02/2026 03 PM PDT            3.25            420         -      Not Applicable
  05/02/2026 04 PM PDT            3.25            420         0      Not Applicable
  05/02/2026 05 PM PDT            3.24            416         -      Not Applicable
  05/02/2026 06 PM PDT            3.24            416         0      Not Applicable
  05/02/2026 07 PM PDT            3.23            413         -      Not Applicable
  05/02/2026 08 PM PDT            3.23            413         0      Not Applicable
  05/02/2026 09 PM PDT            3.23            413         0      Not Applicable
  05/02/2026 10 PM PDT            3.23            413         0      Not Applicable
  05/02/2026 11 PM PDT            3.23            413         0      Not Applicable
  05/03/2026 12 AM PDT            3.23            413         0      Not Applicable
  05/03/2026 01 AM PDT            3.23            413         0      Not Applicable
  05/03/2026 02 AM PDT            3.23            413         0      Not Applicable
  05/03/2026 03 AM PDT            3.23            413         0      Not Applicable
  05/03/2026 04 AM PDT            3.22            409         -      Not Applicable
  05/03/2026 05 AM PDT            3.22            409         0      Not Applicable
  05/03/2026 06 AM PDT            3.22            409         0      Not Applicable
  05/03/2026 07 AM PDT            3.22            409         0      Not Applicable
  05/03/2026 08 AM PDT            3.22            409         0      Not Applicable
  05/03/2026 09 AM PDT            3.22            409         0      Not Applicable
  05/03/2026 10 AM PDT            3.23            413         +      Not Applicable
  05/03/2026 11 AM PDT            3.23            413         0      Not Applicable
  05/03/2026 12 PM PDT            3.24            416         +      Not Applicable
  05/03/2026 01 PM PDT            3.26            423         +      Not Applicable
  05/03/2026 02 PM PDT            3.29            434         +      Not Applicable
  05/03/2026 03 PM PDT            3.38            467         +      Not Applicable
  05/03/2026 04 PM PDT            3.48            506         +      Not Applicable
  05/03/2026 05 PM PDT            3.55            534         +      Not Applicable
  05/03/2026 06 PM PDT            3.61            559         +      Not Applicable
  05/03/2026 07 PM PDT            3.63            568         +      Not Applicable
  05/03/2026 08 PM PDT            3.67            585         +      Not Applicable
  05/03/2026 09 PM PDT            3.72            607         +      Not Applicable
  05/03/2026 10 PM PDT            3.76            625         +      Not Applicable
  05/03/2026 11 PM PDT            3.80            644         +      Not Applicable
  05/04/2026 12 AM PDT            3.82            653         +      Not Applicable
  05/04/2026 01 AM PDT            3.83            658         +      Not Applicable
  05/04/2026 02 AM PDT            3.83            658         0      Not Applicable
  05/04/2026 03 AM PDT            3.81            649         -      Not Applicable
  05/04/2026 04 AM PDT            3.78            635         -      Not Applicable
  05/04/2026 05 AM PDT            3.76            625         -      Not Applicable
  05/04/2026 06 AM PDT            3.74            616         -      Not Applicable
  05/04/2026 07 AM PDT            3.73            612         -      Not Applicable
  05/04/2026 08 AM PDT            3.71            603         -      Not Applicable
  05/04/2026 09 AM PDT            3.70            599         -      Not Applicable
  05/04/2026 10 AM PDT            3.68            590         -      Not Applicable
  05/04/2026 11 AM PDT            3.66            581         -      Not Applicable
  05/04/2026 12 PM PDT            3.65            577         -      Not Applicable
  05/04/2026 01 PM PDT            3.65            577         0      Not Applicable
  05/04/2026 02 PM PDT            3.65            577         0      Not Applicable
  05/04/2026 03 PM PDT            3.67            585         +      Not Applicable
  05/04/2026 04 PM PDT            3.68            590         +      Not Applicable
  05/04/2026 05 PM PDT            3.70            599         +      Not Applicable
  05/04/2026 06 PM PDT            3.71            603         +      Not Applicable
  05/04/2026 07 PM PDT            3.71            603         0      Not Applicable
  05/04/2026 08 PM PDT            3.73            612         +      Not Applicable
  05/04/2026 09 PM PDT            3.75            621         +      Not Applicable
  05/04/2026 10 PM PDT            3.77            630         +      Not Applicable
  05/04/2026 11 PM PDT            3.79            639         +      Not Applicable
  05/05/2026 12 AM PDT            3.80            644         +      Not Applicable
  05/05/2026 01 AM PDT            3.80            644         0      Not Applicable
  05/05/2026 02 AM PDT            3.81            649         +      Not Applicable
  05/05/2026 03 AM PDT            3.81            649         0      Not Applicable
  05/05/2026 04 AM PDT            3.81            649         0      Not Applicable
  05/05/2026 05 AM PDT            3.81            649         0      Not Applicable
  05/05/2026 06 AM PDT            3.81            649         0      Not Applicable
  05/05/2026 07 AM PDT            3.81            649         0      Not Applicable
  05/05/2026 08 AM PDT            3.80            644         -      Not Applicable
  05/05/2026 09 AM PDT            3.79            639         -      Not Applicable
  05/05/2026 10 AM PDT            3.77            630         -      Not Applicable
  05/05/2026 11 AM PDT            3.76            625         -      Not Applicable
  05/05/2026 12 PM PDT            3.75            621         -      Not Applicable
  05/05/2026 01 PM PDT            3.75            621         0      Not Applicable
  05/05/2026 02 PM PDT            3.74            616         -      Not Applicable
  05/05/2026 03 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 04 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 05 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 06 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 07 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 08 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 09 PM PDT            3.74            616         0      Not Applicable
  05/05/2026 10 PM PDT            3.73            612         -      Not Applicable
  05/05/2026 11 PM PDT            3.73            612         0      Not Applicable
  05/06/2026 12 AM PDT            3.72            607         -      Not Applicable
  05/06/2026 01 AM PDT            3.72            607         0      Not Applicable
  05/06/2026 02 AM PDT            3.71            603         -      Not Applicable
  05/06/2026 03 AM PDT            3.69            594         -      Not Applicable
  05/06/2026 04 AM PDT            3.66            581         -      Not Applicable
  05/06/2026 05 AM PDT            3.64            572         -      Not Applicable
#
# 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.