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

 | 

SAN JOAQUIN RIVER - GRAVELLY FORD (GVAC1)
Latitude: 36.80º NLongitude: 120.16º WElevation: 170 FeetForecast Type: Unofficial Location
Location: Fresno County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: May 15 2026 at 7:53 AM PDTNext Issuance: May 16 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: San Joaquin River - Gravelly Ford (GVAC1)
#
# File Generation Time:  05/15/2026 at 07:56 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/12/2026 at 08:00 AM PDT
# Maximum Observed Stage:                       3.88 Feet
# Maximum Observed Flow:                        374 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/15/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       3.80 Feet
# Maximum Forecast Flow:                        353 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/10/2026 07 AM PDT            3.85            366                Not Applicable
  05/10/2026 08 AM PDT            3.86            369         +      Not Applicable
  05/10/2026 09 AM PDT            3.86            369         0      Not Applicable
  05/10/2026 10 AM PDT            3.86            369         0      Not Applicable
  05/10/2026 11 AM PDT            3.86            369         0      Not Applicable
  05/10/2026 12 PM PDT            3.86            369         0      Not Applicable
  05/10/2026 01 PM PDT            3.85            366         -      Not Applicable
  05/10/2026 02 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 03 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 04 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 05 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 06 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 07 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 08 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 09 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 10 PM PDT            3.85            366         0      Not Applicable
  05/10/2026 11 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 12 AM PDT            3.85            366         0      Not Applicable
  05/11/2026 01 AM PDT            3.85            366         0      Not Applicable
  05/11/2026 02 AM PDT            3.85            366         0      Not Applicable
  05/11/2026 03 AM PDT            3.86            369         +      Not Applicable
  05/11/2026 04 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 05 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 06 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 07 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 08 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 09 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 10 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 11 AM PDT            3.86            369         0      Not Applicable
  05/11/2026 12 PM PDT            3.85            366         -      Not Applicable
  05/11/2026 01 PM PDT            3.86            369         +      Not Applicable
  05/11/2026 02 PM PDT            3.85            366         -      Not Applicable
  05/11/2026 03 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 04 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 05 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 06 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 07 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 08 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 09 PM PDT            3.85            366         0      Not Applicable
  05/11/2026 10 PM PDT            3.86            369         +      Not Applicable
  05/11/2026 11 PM PDT            3.86            369         0      Not Applicable
  05/12/2026 12 AM PDT            3.85            366         -      Not Applicable
  05/12/2026 01 AM PDT            3.86            369         +      Not Applicable
  05/12/2026 02 AM PDT            3.87            371         +      Not Applicable
  05/12/2026 03 AM PDT            3.87            371         0      Not Applicable
  05/12/2026 04 AM PDT            3.87            371         0      Not Applicable
  05/12/2026 05 AM PDT            3.87            371         0      Not Applicable
  05/12/2026 06 AM PDT            3.87            371         0      Not Applicable
  05/12/2026 07 AM PDT            3.87            371         0      Not Applicable
  05/12/2026 08 AM PDT            3.88            374         +      Not Applicable
  05/12/2026 09 AM PDT            3.84            363         -      Not Applicable
  05/12/2026 10 AM PDT            3.81            356         -      Not Applicable
  05/12/2026 11 AM PDT            3.81            356         0      Not Applicable
  05/12/2026 12 PM PDT            3.80            353         -      Not Applicable
  05/12/2026 01 PM PDT            3.80            353         0      Not Applicable
  05/12/2026 02 PM PDT            3.80            353         0      Not Applicable
  05/12/2026 03 PM PDT            3.80            353         0      Not Applicable
  05/12/2026 04 PM PDT            3.81            356         +      Not Applicable
  05/12/2026 05 PM PDT            3.81            356         0      Not Applicable
  05/12/2026 06 PM PDT            3.81            356         0      Not Applicable
  05/12/2026 07 PM PDT            3.80            353         -      Not Applicable
  05/12/2026 08 PM PDT            3.80            353         0      Not Applicable
  05/12/2026 09 PM PDT            3.80            353         0      Not Applicable
  05/12/2026 10 PM PDT            3.79            351         -      Not Applicable
  05/12/2026 11 PM PDT            3.79            351         0      Not Applicable
  05/13/2026 12 AM PDT            3.79            351         0      Not Applicable
  05/13/2026 01 AM PDT            3.79            351         0      Not Applicable
  05/13/2026 02 AM PDT            3.79            351         0      Not Applicable
  05/13/2026 03 AM PDT            3.78            348         -      Not Applicable
  05/13/2026 04 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 05 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 06 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 07 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 08 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 09 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 10 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 11 AM PDT            3.78            348         0      Not Applicable
  05/13/2026 12 PM PDT            3.78            348         0      Not Applicable
  05/13/2026 01 PM PDT            3.78            348         0      Not Applicable
  05/13/2026 02 PM PDT            3.78            348         0      Not Applicable
  05/13/2026 03 PM PDT            3.77            346         -      Not Applicable
  05/13/2026 04 PM PDT            3.77            346         0      Not Applicable
  05/13/2026 05 PM PDT            3.78            348         +      Not Applicable
  05/13/2026 06 PM PDT            3.77            346         -      Not Applicable
  05/13/2026 07 PM PDT            3.77            346         0      Not Applicable
  05/13/2026 08 PM PDT            3.77            346         0      Not Applicable
  05/13/2026 09 PM PDT            3.77            346         0      Not Applicable
  05/13/2026 10 PM PDT            3.77            346         0      Not Applicable
  05/13/2026 11 PM PDT            3.77            346         0      Not Applicable
  05/14/2026 12 AM PDT            3.76            343         -      Not Applicable
  05/14/2026 01 AM PDT            3.76            343         0      Not Applicable
  05/14/2026 02 AM PDT            3.77            346         +      Not Applicable
  05/14/2026 03 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 04 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 05 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 06 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 07 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 08 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 09 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 10 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 11 AM PDT            3.77            346         0      Not Applicable
  05/14/2026 12 PM PDT            3.77            346         0      Not Applicable
  05/14/2026 01 PM PDT            3.77            346         0      Not Applicable
  05/14/2026 02 PM PDT            3.76            343         -      Not Applicable
  05/14/2026 03 PM PDT            3.76            343         0      Not Applicable
  05/14/2026 04 PM PDT            3.77            346         +      Not Applicable
  05/14/2026 05 PM PDT            3.78            348         +      Not Applicable
  05/14/2026 06 PM PDT            3.78            348         0      Not Applicable
  05/14/2026 07 PM PDT            3.78            348         0      Not Applicable
  05/14/2026 08 PM PDT            3.78            348         0      Not Applicable
  05/14/2026 09 PM PDT            3.79            351         +      Not Applicable
  05/14/2026 10 PM PDT            3.79            351         0      Not Applicable
  05/14/2026 11 PM PDT            3.79            351         0      Not Applicable
  05/15/2026 12 AM PDT            3.80            353         +      Not Applicable
  05/15/2026 01 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 02 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 03 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 04 AM PDT            3.81            356         +      Not Applicable
  05/15/2026 05 AM PDT            3.80            353         -      Not Applicable
  05/15/2026 06 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 07 AM PDT            3.80            353         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/15/2026 08 AM PDT            3.80            353                Not Applicable
  05/15/2026 09 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 10 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 11 AM PDT            3.80            353         0      Not Applicable
  05/15/2026 12 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 01 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 02 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 03 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 04 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 05 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 06 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 07 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 08 PM PDT            3.80            353         0      Not Applicable
  05/15/2026 09 PM PDT            3.79            351         -      Not Applicable
  05/15/2026 10 PM PDT            3.79            351         0      Not Applicable
  05/15/2026 11 PM PDT            3.79            351         0      Not Applicable
  05/16/2026 12 AM PDT            3.78            348         -      Not Applicable
  05/16/2026 01 AM PDT            3.77            346         -      Not Applicable
  05/16/2026 02 AM PDT            3.77            346         0      Not Applicable
  05/16/2026 03 AM PDT            3.77            346         0      Not Applicable
  05/16/2026 04 AM PDT            3.76            343         -      Not Applicable
  05/16/2026 05 AM PDT            3.76            343         0      Not Applicable
  05/16/2026 06 AM PDT            3.75            341         -      Not Applicable
  05/16/2026 07 AM PDT            3.75            341         0      Not Applicable
  05/16/2026 08 AM PDT            3.75            341         0      Not Applicable
  05/16/2026 09 AM PDT            3.74            338         -      Not Applicable
  05/16/2026 10 AM PDT            3.74            338         0      Not Applicable
  05/16/2026 11 AM PDT            3.73            336         -      Not Applicable
  05/16/2026 12 PM PDT            3.73            336         0      Not Applicable
  05/16/2026 01 PM PDT            3.73            336         0      Not Applicable
  05/16/2026 02 PM PDT            3.73            336         0      Not Applicable
  05/16/2026 03 PM PDT            3.72            333         -      Not Applicable
  05/16/2026 04 PM PDT            3.72            333         0      Not Applicable
  05/16/2026 05 PM PDT            3.72            333         0      Not Applicable
  05/16/2026 06 PM PDT            3.72            333         0      Not Applicable
  05/16/2026 07 PM PDT            3.71            331         -      Not Applicable
  05/16/2026 08 PM PDT            3.71            331         0      Not Applicable
  05/16/2026 09 PM PDT            3.71            331         0      Not Applicable
  05/16/2026 10 PM PDT            3.71            331         0      Not Applicable
  05/16/2026 11 PM PDT            3.71            331         0      Not Applicable
  05/17/2026 12 AM PDT            3.70            328         -      Not Applicable
  05/17/2026 01 AM PDT            3.70            328         0      Not Applicable
  05/17/2026 02 AM PDT            3.70            328         0      Not Applicable
  05/17/2026 03 AM PDT            3.70            328         0      Not Applicable
  05/17/2026 04 AM PDT            3.70            328         0      Not Applicable
  05/17/2026 05 AM PDT            3.69            326         -      Not Applicable
  05/17/2026 06 AM PDT            3.69            326         0      Not Applicable
  05/17/2026 07 AM PDT            3.69            326         0      Not Applicable
  05/17/2026 08 AM PDT            3.69            326         0      Not Applicable
  05/17/2026 09 AM PDT            3.69            326         0      Not Applicable
  05/17/2026 10 AM PDT            3.69            326         0      Not Applicable
  05/17/2026 11 AM PDT            3.68            324         -      Not Applicable
  05/17/2026 12 PM PDT            3.68            324         0      Not Applicable
  05/17/2026 01 PM PDT            3.68            324         0      Not Applicable
  05/17/2026 02 PM PDT            3.68            324         0      Not Applicable
  05/17/2026 03 PM PDT            3.68            324         0      Not Applicable
  05/17/2026 04 PM PDT            3.68            324         0      Not Applicable
  05/17/2026 05 PM PDT            3.68            324         0      Not Applicable
  05/17/2026 06 PM PDT            3.67            321         -      Not Applicable
  05/17/2026 07 PM PDT            3.67            321         0      Not Applicable
  05/17/2026 08 PM PDT            3.67            321         0      Not Applicable
  05/17/2026 09 PM PDT            3.67            321         0      Not Applicable
  05/17/2026 10 PM PDT            3.67            321         0      Not Applicable
  05/17/2026 11 PM PDT            3.67            321         0      Not Applicable
  05/18/2026 12 AM PDT            3.67            321         0      Not Applicable
  05/18/2026 01 AM PDT            3.67            321         0      Not Applicable
  05/18/2026 02 AM PDT            3.67            321         0      Not Applicable
  05/18/2026 03 AM PDT            3.67            321         0      Not Applicable
  05/18/2026 04 AM PDT            3.67            321         0      Not Applicable
  05/18/2026 05 AM PDT            3.66            319         -      Not Applicable
  05/18/2026 06 AM PDT            3.66            319         0      Not Applicable
  05/18/2026 07 AM PDT            3.66            319         0      Not Applicable
  05/18/2026 08 AM PDT            3.66            319         0      Not Applicable
  05/18/2026 09 AM PDT            3.66            319         0      Not Applicable
  05/18/2026 10 AM PDT            3.66            319         0      Not Applicable
  05/18/2026 11 AM PDT            3.66            319         0      Not Applicable
  05/18/2026 12 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 01 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 02 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 03 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 04 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 05 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 06 PM PDT            3.66            319         0      Not Applicable
  05/18/2026 07 PM PDT            3.65            316         -      Not Applicable
  05/18/2026 08 PM PDT            3.65            316         0      Not Applicable
  05/18/2026 09 PM PDT            3.65            316         0      Not Applicable
  05/18/2026 10 PM PDT            3.65            316         0      Not Applicable
  05/18/2026 11 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 12 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 01 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 02 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 03 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 04 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 05 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 06 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 07 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 08 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 09 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 10 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 11 AM PDT            3.65            316         0      Not Applicable
  05/19/2026 12 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 01 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 02 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 03 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 04 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 05 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 06 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 07 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 08 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 09 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 10 PM PDT            3.65            316         0      Not Applicable
  05/19/2026 11 PM PDT            3.65            316         0      Not Applicable
  05/20/2026 12 AM PDT            3.65            316         0      Not Applicable
  05/20/2026 01 AM PDT            3.65            316         0      Not Applicable
  05/20/2026 02 AM PDT            3.65            316         0      Not Applicable
  05/20/2026 03 AM PDT            3.65            316         0      Not Applicable
  05/20/2026 04 AM PDT            3.65            316         0      Not Applicable
  05/20/2026 05 AM PDT            3.65            316         0      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.