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

 | 

MIDDLE FORK AMERICAN RIVER - FORESTHILL (MFAC1)
Latitude: 39.01º NLongitude: 120.76º WElevation: 1070 FeetForecast Type: Unofficial Location
Location: Placer County in CaliforniaBulletin Group: Lower SacramentoRiver Group: American
Issuance Time: Aug 16 2026 at 7:09 AM PDTNext Issuance: Aug 17 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: Middle Fork American River - Foresthill (MFAC1)
#
# File Generation Time:  08/16/2026 at 07:11 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  08/15/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       9.89 Feet
# Maximum Observed Flow:                        1042 cfs
#
# Earliest Date & Time of Maximum Forecast:     08/16/2026 at 01:00 PM PDT
# Maximum Forecast Stage:                       9.63 Feet
# Maximum Forecast Flow:                        878 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/11/2026 07 AM PDT            9.77            966                Not Applicable
  08/11/2026 08 AM PDT            9.78            972         +      Not Applicable
  08/11/2026 09 AM PDT            9.76            959         -      Not Applicable
  08/11/2026 10 AM PDT            9.83           1004         +      Not Applicable
  08/11/2026 11 AM PDT            9.85           1017         +      Not Applicable
  08/11/2026 12 PM PDT            9.79            979         -      Not Applicable
  08/11/2026 01 PM PDT            9.81            991         +      Not Applicable
  08/11/2026 02 PM PDT            9.78            972         -      Not Applicable
  08/11/2026 03 PM PDT            9.81            991         +      Not Applicable
  08/11/2026 04 PM PDT            9.77            966         -      Not Applicable
  08/11/2026 05 PM PDT            9.83           1004         +      Not Applicable
  08/11/2026 06 PM PDT            9.80            985         -      Not Applicable
  08/11/2026 07 PM PDT            9.74            947         -      Not Applicable
  08/11/2026 08 PM PDT            9.75            953         +      Not Applicable
  08/11/2026 09 PM PDT            9.75            953         0      Not Applicable
  08/11/2026 10 PM PDT            9.80            985         +      Not Applicable
  08/11/2026 11 PM PDT            9.81            991         +      Not Applicable
  08/12/2026 12 AM PDT            9.78            972         -      Not Applicable
  08/12/2026 01 AM PDT            9.77            966         -      Not Applicable
  08/12/2026 02 AM PDT            9.75            953         -      Not Applicable
  08/12/2026 03 AM PDT            9.78            972         +      Not Applicable
  08/12/2026 04 AM PDT            9.78            972         0      Not Applicable
  08/12/2026 05 AM PDT            9.77            966         -      Not Applicable
  08/12/2026 06 AM PDT            9.77            966         0      Not Applicable
  08/12/2026 07 AM PDT            9.79            979         +      Not Applicable
  08/12/2026 08 AM PDT            9.73            941         -      Not Applicable
  08/12/2026 09 AM PDT            9.78            972         +      Not Applicable
  08/12/2026 10 AM PDT            9.77            966         -      Not Applicable
  08/12/2026 11 AM PDT            9.79            979         +      Not Applicable
  08/12/2026 12 PM PDT            9.80            985         +      Not Applicable
  08/12/2026 01 PM PDT            9.77            966         -      Not Applicable
  08/12/2026 02 PM PDT            9.66            897         -      Not Applicable
  08/12/2026 03 PM PDT            9.68            909         +      Not Applicable
  08/12/2026 04 PM PDT            9.59            854         -      Not Applicable
  08/12/2026 05 PM PDT            9.60            860         +      Not Applicable
  08/12/2026 06 PM PDT            9.08            607         -      Not Applicable
  08/12/2026 07 PM PDT            8.98            565         -      Not Applicable
  08/12/2026 08 PM PDT            9.00            572         +      Not Applicable
  08/12/2026 09 PM PDT            9.02            581         +      Not Applicable
  08/12/2026 10 PM PDT            8.95            554         -      Not Applicable
  08/12/2026 11 PM PDT            8.91            540         -      Not Applicable
  08/13/2026 12 AM PDT            8.92            544         +      Not Applicable
  08/13/2026 01 AM PDT            8.92            544         0      Not Applicable
  08/13/2026 02 AM PDT            9.41            758         +      Not Applicable
  08/13/2026 03 AM PDT            9.37            739         -      Not Applicable
  08/13/2026 04 AM PDT            9.38            744         +      Not Applicable
  08/13/2026 05 AM PDT            9.37            739         -      Not Applicable
  08/13/2026 06 AM PDT            9.38            744         +      Not Applicable
  08/13/2026 07 AM PDT            9.40            753         +      Not Applicable
  08/13/2026 08 AM PDT            9.39            748         -      Not Applicable
  08/13/2026 09 AM PDT            9.84           1010         +      Not Applicable
  08/13/2026 10 AM PDT            9.82            998         -      Not Applicable
  08/13/2026 11 AM PDT            9.81            991         -      Not Applicable
  08/13/2026 12 PM PDT            9.85           1017         +      Not Applicable
  08/13/2026 01 PM PDT            9.82            998         -      Not Applicable
  08/13/2026 02 PM PDT            9.30            707         -      Not Applicable
  08/13/2026 03 PM PDT            8.78            494         -      Not Applicable
  08/13/2026 04 PM PDT            8.81            505         +      Not Applicable
  08/13/2026 05 PM PDT            8.79            498         -      Not Applicable
  08/13/2026 06 PM PDT            8.74            477         -      Not Applicable
  08/13/2026 07 PM PDT            8.76            485         +      Not Applicable
  08/13/2026 08 PM PDT            8.74            477         -      Not Applicable
  08/13/2026 09 PM PDT            8.72            469         -      Not Applicable
  08/13/2026 10 PM PDT            8.74            477         +      Not Applicable
  08/13/2026 11 PM PDT            8.72            469         -      Not Applicable
  08/14/2026 12 AM PDT            8.77            489         +      Not Applicable
  08/14/2026 01 AM PDT            9.37            739         +      Not Applicable
  08/14/2026 02 AM PDT            9.84           1010         +      Not Applicable
  08/14/2026 03 AM PDT            9.78            972         -      Not Applicable
  08/14/2026 04 AM PDT            9.83           1004         +      Not Applicable
  08/14/2026 05 AM PDT            9.84           1010         +      Not Applicable
  08/14/2026 06 AM PDT            9.85           1017         +      Not Applicable
  08/14/2026 07 AM PDT            9.86           1023         +      Not Applicable
  08/14/2026 08 AM PDT            9.85           1017         -      Not Applicable
  08/14/2026 09 AM PDT            9.88           1036         +      Not Applicable
  08/14/2026 10 AM PDT            9.87           1029         -      Not Applicable
  08/14/2026 11 AM PDT            9.85           1017         -      Not Applicable
  08/14/2026 12 PM PDT            9.81            991         -      Not Applicable
  08/14/2026 01 PM PDT            9.86           1023         +      Not Applicable
  08/14/2026 02 PM PDT            9.53            818         -      Not Applicable
  08/14/2026 03 PM PDT            9.55            830         +      Not Applicable
  08/14/2026 04 PM PDT            9.58            848         +      Not Applicable
  08/14/2026 05 PM PDT            9.51            806         -      Not Applicable
  08/14/2026 06 PM PDT            9.55            830         +      Not Applicable
  08/14/2026 07 PM PDT            9.16            643         -      Not Applicable
  08/14/2026 08 PM PDT            9.14            634         -      Not Applicable
  08/14/2026 09 PM PDT            9.12            625         -      Not Applicable
  08/14/2026 10 PM PDT            9.13            629         +      Not Applicable
  08/14/2026 11 PM PDT            9.09            611         -      Not Applicable
  08/15/2026 12 AM PDT            9.11            620         +      Not Applicable
  08/15/2026 01 AM PDT            9.12            625         +      Not Applicable
  08/15/2026 02 AM PDT            9.65            891         +      Not Applicable
  08/15/2026 03 AM PDT            9.83           1004         +      Not Applicable
  08/15/2026 04 AM PDT            9.88           1036         +      Not Applicable
  08/15/2026 05 AM PDT            9.88           1036         0      Not Applicable
  08/15/2026 06 AM PDT            9.87           1029         -      Not Applicable
  08/15/2026 07 AM PDT            9.89           1042         +      Not Applicable
  08/15/2026 08 AM PDT            9.81            991         -      Not Applicable
  08/15/2026 09 AM PDT            9.82            998         +      Not Applicable
  08/15/2026 10 AM PDT            9.85           1017         +      Not Applicable
  08/15/2026 11 AM PDT            9.86           1023         +      Not Applicable
  08/15/2026 12 PM PDT            9.84           1010         -      Not Applicable
  08/15/2026 01 PM PDT            9.58            848         -      Not Applicable
  08/15/2026 02 PM PDT            8.82            509         -      Not Applicable
  08/15/2026 03 PM PDT            8.63            427         -      Not Applicable
  08/15/2026 04 PM PDT            8.55            389         -      Not Applicable
  08/15/2026 05 PM PDT            8.54            385         -      Not Applicable
  08/15/2026 06 PM PDT            8.52            376         -      Not Applicable
  08/15/2026 07 PM PDT            8.53            380         +      Not Applicable
  08/15/2026 08 PM PDT            8.53            380         0      Not Applicable
  08/15/2026 09 PM PDT            8.51            371         -      Not Applicable
  08/15/2026 10 PM PDT            8.87            526         +      Not Applicable
  08/15/2026 11 PM PDT            8.97            561         +      Not Applicable
  08/16/2026 12 AM PDT            8.90            537         -      Not Applicable
  08/16/2026 01 AM PDT            8.86            523         -      Not Applicable
  08/16/2026 02 AM PDT            8.90            537         +      Not Applicable
  08/16/2026 03 AM PDT            8.94            551         +      Not Applicable
  08/16/2026 04 AM PDT            8.88            530         -      Not Applicable
  08/16/2026 05 AM PDT            8.88            530         0      Not Applicable
  08/16/2026 06 AM PDT            8.90            537         +      Not Applicable
  08/16/2026 07 AM PDT            9.03            585         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  08/16/2026 08 AM PDT            9.14            634                Not Applicable
  08/16/2026 09 AM PDT            9.25            684         +      Not Applicable
  08/16/2026 10 AM PDT            9.35            730         +      Not Applicable
  08/16/2026 11 AM PDT            9.46            781         +      Not Applicable
  08/16/2026 12 PM PDT            9.55            830         +      Not Applicable
  08/16/2026 01 PM PDT            9.63            878         +      Not Applicable
  08/16/2026 02 PM PDT            9.19            656         -      Not Applicable
  08/16/2026 03 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 04 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 05 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 06 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 07 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 08 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 09 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 10 PM PDT            9.19            656         0      Not Applicable
  08/16/2026 11 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 12 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 01 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 02 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 03 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 04 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 05 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 06 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 07 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 08 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 09 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 10 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 11 AM PDT            9.19            656         0      Not Applicable
  08/17/2026 12 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 01 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 02 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 03 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 04 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 05 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 06 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 07 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 08 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 09 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 10 PM PDT            9.19            656         0      Not Applicable
  08/17/2026 11 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 12 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 01 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 02 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 03 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 04 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 05 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 06 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 07 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 08 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 09 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 10 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 11 AM PDT            9.19            656         0      Not Applicable
  08/18/2026 12 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 01 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 02 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 03 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 04 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 05 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 06 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 07 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 08 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 09 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 10 PM PDT            9.19            656         0      Not Applicable
  08/18/2026 11 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 12 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 01 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 02 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 03 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 04 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 05 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 06 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 07 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 08 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 09 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 10 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 11 AM PDT            9.19            656         0      Not Applicable
  08/19/2026 12 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 01 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 02 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 03 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 04 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 05 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 06 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 07 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 08 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 09 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 10 PM PDT            9.19            656         0      Not Applicable
  08/19/2026 11 PM PDT            9.19            656         0      Not Applicable
  08/20/2026 12 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 01 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 02 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 03 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 04 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 05 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 06 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 07 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 08 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 09 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 10 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 11 AM PDT            9.19            656         0      Not Applicable
  08/20/2026 12 PM PDT            9.19            656         0      Not Applicable
  08/20/2026 01 PM PDT            9.18            652         -      Not Applicable
  08/20/2026 02 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 03 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 04 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 05 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 06 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 07 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 08 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 09 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 10 PM PDT            9.18            652         0      Not Applicable
  08/20/2026 11 PM PDT            9.18            652         0      Not Applicable
  08/21/2026 12 AM PDT            9.18            652         0      Not Applicable
  08/21/2026 01 AM PDT            9.18            652         0      Not Applicable
  08/21/2026 02 AM PDT            9.18            652         0      Not Applicable
  08/21/2026 03 AM PDT            9.18            652         0      Not Applicable
  08/21/2026 04 AM PDT            9.18            652         0      Not Applicable
  08/21/2026 05 AM PDT            9.18            652         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.