LYTLE CREEK - COLTON (YTLC1)
Latitude: 34.08º NLongitude: 117.30º WElevation: 975 Feet
Location: San Bernardino County in CaliforniaBulletin Group: Southern CaliforniaRiver Group: Southern California
Issuance Time: Dec 25 2025 at 8:37 PM PSTNext Issuance: Dec 26 2025 at 9:00 AM PST
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Lytle Creek - Colton (YTLC1)
#
# File Generation Time:  12/25/2025 at 08:40 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/24/2025 at 06:00 PM PST
# Maximum Observed Stage:                       6.50 Feet
# Maximum Observed Flow:                        4569 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 12:00 PM PST
# Maximum Forecast Stage:                       2.77 Feet
# Maximum Forecast Flow:                        357 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/20/2025 08 PM PST            2.02              3                Not Applicable
  12/20/2025 09 PM PST            2.02              3         0      Not Applicable
  12/20/2025 10 PM PST            2.01              2         -      Not Applicable
  12/20/2025 11 PM PST            2.01              2         0      Not Applicable
  12/21/2025 12 AM PST            2.02              3         +      Not Applicable
  12/21/2025 01 AM PST            2.03              5         +      Not Applicable
  12/21/2025 02 AM PST            2.03              5         0      Not Applicable
  12/21/2025 03 AM PST            2.03              5         0      Not Applicable
  12/21/2025 04 AM PST            2.05              9         +      Not Applicable
  12/21/2025 05 AM PST            2.03              5         -      Not Applicable
  12/21/2025 06 AM PST            2.03              5         0      Not Applicable
  12/21/2025 07 AM PST            2.03              5         0      Not Applicable
  12/21/2025 08 AM PST            2.04              7         +      Not Applicable
  12/21/2025 09 AM PST            2.03              5         -      Not Applicable
  12/21/2025 10 AM PST            2.02              3         -      Not Applicable
  12/21/2025 11 AM PST            2.03              5         +      Not Applicable
  12/21/2025 12 PM PST            2.03              5         0      Not Applicable
  12/21/2025 01 PM PST            2.03              5         0      Not Applicable
  12/21/2025 02 PM PST            2.03              5         0      Not Applicable
  12/21/2025 03 PM PST            2.04              7         +      Not Applicable
  12/21/2025 04 PM PST            2.04              7         0      Not Applicable
  12/21/2025 05 PM PST            2.04              7         0      Not Applicable
  12/21/2025 06 PM PST            2.04              7         0      Not Applicable
  12/21/2025 07 PM PST            2.03              5         -      Not Applicable
  12/21/2025 08 PM PST            2.03              5         0      Not Applicable
  12/21/2025 09 PM PST            2.02              3         -      Not Applicable
  12/21/2025 10 PM PST            2.02              3         0      Not Applicable
  12/21/2025 11 PM PST            2.01              2         -      Not Applicable
  12/22/2025 12 AM PST            2.01              2         0      Not Applicable
  12/22/2025 01 AM PST            2.02              3         +      Not Applicable
  12/22/2025 02 AM PST            2.02              3         0      Not Applicable
  12/22/2025 03 AM PST            2.02              3         0      Not Applicable
  12/22/2025 04 AM PST            2.05              9         +      Not Applicable
  12/22/2025 05 AM PST            2.03              5         -      Not Applicable
  12/22/2025 06 AM PST            2.03              5         0      Not Applicable
  12/22/2025 07 AM PST            2.03              5         0      Not Applicable
  12/22/2025 08 AM PST            2.02              3         -      Not Applicable
  12/22/2025 09 AM PST            2.02              3         0      Not Applicable
  12/22/2025 10 AM PST            2.02              3         0      Not Applicable
  12/22/2025 11 AM PST            2.03              5         +      Not Applicable
  12/22/2025 12 PM PST            2.02              3         -      Not Applicable
  12/22/2025 01 PM PST            2.00              1         -      Not Applicable
  12/22/2025 02 PM PST            2.01              2         +      Not Applicable
  12/22/2025 03 PM PST            2.03              5         +      Not Applicable
  12/22/2025 04 PM PST            2.03              5         0      Not Applicable
  12/22/2025 05 PM PST            2.03              5         0      Not Applicable
  12/22/2025 06 PM PST            2.03              5         0      Not Applicable
  12/22/2025 07 PM PST            2.03              5         0      Not Applicable
  12/22/2025 08 PM PST            2.03              5         0      Not Applicable
  12/22/2025 09 PM PST            2.02              3         -      Not Applicable
  12/22/2025 10 PM PST            2.02              3         0      Not Applicable
  12/22/2025 11 PM PST            2.02              3         0      Not Applicable
  12/23/2025 12 AM PST            2.02              3         0      Not Applicable
  12/23/2025 01 AM PST            2.02              3         0      Not Applicable
  12/23/2025 02 AM PST            2.02              3         0      Not Applicable
  12/23/2025 03 AM PST            2.02              3         0      Not Applicable
  12/23/2025 04 AM PST            2.02              3         0      Not Applicable
  12/23/2025 05 AM PST            2.02              3         0      Not Applicable
  12/23/2025 06 AM PST            2.02              3         0      Not Applicable
  12/23/2025 07 AM PST            2.03              5         +      Not Applicable
  12/23/2025 08 AM PST            2.02              3         -      Not Applicable
  12/23/2025 09 AM PST            2.01              2         -      Not Applicable
  12/23/2025 10 AM PST            2.02              3         +      Not Applicable
  12/23/2025 11 AM PST            2.02              3         0      Not Applicable
  12/23/2025 12 PM PST            2.02              3         0      Not Applicable
  12/23/2025 01 PM PST            2.02              3         0      Not Applicable
  12/23/2025 02 PM PST            2.02              3         0      Not Applicable
  12/23/2025 03 PM PST            2.01              2         -      Not Applicable
  12/23/2025 04 PM PST            2.01              2         0      Not Applicable
  12/23/2025 05 PM PST            2.02              3         +      Not Applicable
  12/23/2025 06 PM PST            2.02              3         0      Not Applicable
  12/23/2025 07 PM PST            2.03              5         +      Not Applicable
  12/23/2025 08 PM PST            2.03              5         0      Not Applicable
  12/23/2025 09 PM PST            2.02              3         -      Not Applicable
  12/23/2025 10 PM PST            2.03              5         +      Not Applicable
  12/23/2025 11 PM PST            2.03              5         0      Not Applicable
  12/24/2025 12 AM PST            2.03              5         0      Not Applicable
  12/24/2025 01 AM PST            2.02              3         -      Not Applicable
  12/24/2025 02 AM PST            2.03              5         +      Not Applicable
  12/24/2025 03 AM PST            2.03              5         0      Not Applicable
  12/24/2025 04 AM PST            2.03              5         0      Not Applicable
  12/24/2025 05 AM PST            2.03              5         0      Not Applicable
  12/24/2025 06 AM PST            2.04              7         +      Not Applicable
  12/24/2025 07 AM PST            2.03              5         -      Not Applicable
  12/24/2025 08 AM PST            2.24             69         +      Not Applicable
  12/24/2025 09 AM PST            2.12             27         -      Not Applicable
  12/24/2025 10 AM PST            2.05              9         -      Not Applicable
  12/24/2025 11 AM PST            4.26           1688         +      Not Applicable
  12/24/2025 12 PM PST            4.53           1987         +      Not Applicable
  12/24/2025 01 PM PST            4.63           2102         +      Not Applicable
  12/24/2025 02 PM PST            5.31           2931         +      Not Applicable
  12/24/2025 03 PM PST            5.82           3605         +      Not Applicable
  12/24/2025 04 PM PST            5.92           3742         +      Not Applicable
  12/24/2025 05 PM PST            5.94           3770         +      Not Applicable
  12/24/2025 06 PM PST            6.50           4569         +      Not Applicable
  12/24/2025 07 PM PST            5.56           3256         -      Not Applicable
  12/24/2025 08 PM PST            4.89           2409         -      Not Applicable
  12/24/2025 09 PM PST            4.19           1613         -      Not Applicable
  12/24/2025 10 PM PST            3.67           1090         -      Not Applicable
  12/24/2025 11 PM PST            3.25            717         -      Not Applicable
  12/25/2025 12 AM PST            3.44            880         +      Not Applicable
  12/25/2025 01 AM PST            3.11            604         -      Not Applicable
  12/25/2025 02 AM PST            2.79            371         -      Not Applicable
  12/25/2025 03 AM PST            2.57            233         -      Not Applicable
  12/25/2025 04 AM PST            2.58            239         +      Not Applicable
  12/25/2025 05 AM PST            2.51            199         -      Not Applicable
  12/25/2025 06 AM PST            2.45            167         -      Not Applicable
  12/25/2025 07 AM PST            2.31             99         -      Not Applicable
  12/25/2025 08 AM PST            2.29             90         -      Not Applicable
  12/25/2025 09 AM PST            2.26             77         -      Not Applicable
  12/25/2025 10 AM PST            2.19             50         -      Not Applicable
  12/25/2025 11 AM PST            2.19             50         0      Not Applicable
  12/25/2025 12 PM PST            2.15             36         -      Not Applicable
  12/25/2025 01 PM PST            2.11             24         -      Not Applicable
  12/25/2025 02 PM PST            2.12             27         +      Not Applicable
  12/25/2025 03 PM PST            2.12             27         0      Not Applicable
  12/25/2025 04 PM PST            2.08             16         -      Not Applicable
  12/25/2025 05 PM PST            2.05              9         -      Not Applicable
  12/25/2025 06 PM PST            2.06             11         +      Not Applicable
  12/25/2025 07 PM PST            2.07             13         +      Not Applicable
  12/25/2025 08 PM PST            2.08             16         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/25/2025 09 PM PST            2.11             24                Not Applicable
  12/25/2025 10 PM PST            2.12             27         +      Not Applicable
  12/25/2025 11 PM PST            2.12             27         0      Not Applicable
  12/26/2025 12 AM PST            2.13             30         +      Not Applicable
  12/26/2025 01 AM PST            2.15             36         +      Not Applicable
  12/26/2025 02 AM PST            2.22             61         +      Not Applicable
  12/26/2025 03 AM PST            2.29             90         +      Not Applicable
  12/26/2025 04 AM PST            2.32            103         +      Not Applicable
  12/26/2025 05 AM PST            2.33            108         +      Not Applicable
  12/26/2025 06 AM PST            2.36            122         +      Not Applicable
  12/26/2025 07 AM PST            2.48            183         +      Not Applicable
  12/26/2025 08 AM PST            2.64            275         +      Not Applicable
  12/26/2025 09 AM PST            2.71            318         +      Not Applicable
  12/26/2025 10 AM PST            2.74            338         +      Not Applicable
  12/26/2025 11 AM PST            2.76            351         +      Not Applicable
  12/26/2025 12 PM PST            2.77            357         +      Not Applicable
  12/26/2025 01 PM PST            2.77            357         0      Not Applicable
  12/26/2025 02 PM PST            2.76            351         -      Not Applicable
  12/26/2025 03 PM PST            2.76            351         0      Not Applicable
  12/26/2025 04 PM PST            2.77            357         +      Not Applicable
  12/26/2025 05 PM PST            2.76            351         -      Not Applicable
  12/26/2025 06 PM PST            2.73            331         -      Not Applicable
  12/26/2025 07 PM PST            2.64            275         -      Not Applicable
  12/26/2025 08 PM PST            2.52            204         -      Not Applicable
  12/26/2025 09 PM PST            2.45            167         -      Not Applicable
  12/26/2025 10 PM PST            2.41            146         -      Not Applicable
  12/26/2025 11 PM PST            2.38            131         -      Not Applicable
  12/27/2025 12 AM PST            2.35            117         -      Not Applicable
  12/27/2025 01 AM PST            2.32            103         -      Not Applicable
  12/27/2025 02 AM PST            2.27             81         -      Not Applicable
  12/27/2025 03 AM PST            2.22             61         -      Not Applicable
  12/27/2025 04 AM PST            2.18             46         -      Not Applicable
  12/27/2025 05 AM PST            2.16             39         -      Not Applicable
  12/27/2025 06 AM PST            2.14             33         -      Not Applicable
  12/27/2025 07 AM PST            2.12             27         -      Not Applicable
  12/27/2025 08 AM PST            2.11             24         -      Not Applicable
  12/27/2025 09 AM PST            2.10             21         -      Not Applicable
  12/27/2025 10 AM PST            2.10             21         0      Not Applicable
  12/27/2025 11 AM PST            2.09             18         -      Not Applicable
  12/27/2025 12 PM PST            2.09             18         0      Not Applicable
  12/27/2025 01 PM PST            2.09             18         0      Not Applicable
  12/27/2025 02 PM PST            2.08             16         -      Not Applicable
  12/27/2025 03 PM PST            2.08             16         0      Not Applicable
  12/27/2025 04 PM PST            2.08             16         0      Not Applicable
  12/27/2025 05 PM PST            2.08             16         0      Not Applicable
  12/27/2025 06 PM PST            2.08             16         0      Not Applicable
  12/27/2025 07 PM PST            2.08             16         0      Not Applicable
  12/27/2025 08 PM PST            2.08             16         0      Not Applicable
  12/27/2025 09 PM PST            2.08             16         0      Not Applicable
  12/27/2025 10 PM PST            2.08             16         0      Not Applicable
  12/27/2025 11 PM PST            2.08             16         0      Not Applicable
  12/28/2025 12 AM PST            2.08             16         0      Not Applicable
  12/28/2025 01 AM PST            2.08             16         0      Not Applicable
  12/28/2025 02 AM PST            2.08             16         0      Not Applicable
  12/28/2025 03 AM PST            2.08             16         0      Not Applicable
  12/28/2025 04 AM PST            2.08             16         0      Not Applicable
  12/28/2025 05 AM PST            2.08             16         0      Not Applicable
  12/28/2025 06 AM PST            2.07             13         -      Not Applicable
  12/28/2025 07 AM PST            2.07             13         0      Not Applicable
  12/28/2025 08 AM PST            2.07             13         0      Not Applicable
  12/28/2025 09 AM PST            2.07             13         0      Not Applicable
  12/28/2025 10 AM PST            2.07             13         0      Not Applicable
  12/28/2025 11 AM PST            2.07             13         0      Not Applicable
  12/28/2025 12 PM PST            2.07             13         0      Not Applicable
  12/28/2025 01 PM PST            2.07             13         0      Not Applicable
  12/28/2025 02 PM PST            2.07             13         0      Not Applicable
  12/28/2025 03 PM PST            2.07             13         0      Not Applicable
  12/28/2025 04 PM PST            2.07             13         0      Not Applicable
  12/28/2025 05 PM PST            2.07             13         0      Not Applicable
  12/28/2025 06 PM PST            2.07             13         0      Not Applicable
  12/28/2025 07 PM PST            2.07             13         0      Not Applicable
  12/28/2025 08 PM PST            2.07             13         0      Not Applicable
  12/28/2025 09 PM PST            2.07             13         0      Not Applicable
  12/28/2025 10 PM PST            2.07             13         0      Not Applicable
  12/28/2025 11 PM PST            2.07             13         0      Not Applicable
  12/29/2025 12 AM PST            2.07             13         0      Not Applicable
  12/29/2025 01 AM PST            2.07             13         0      Not Applicable
  12/29/2025 02 AM PST            2.07             13         0      Not Applicable
  12/29/2025 03 AM PST            2.07             13         0      Not Applicable
  12/29/2025 04 AM PST            2.07             13         0      Not Applicable
  12/29/2025 05 AM PST            2.07             13         0      Not Applicable
  12/29/2025 06 AM PST            2.07             13         0      Not Applicable
  12/29/2025 07 AM PST            2.07             13         0      Not Applicable
  12/29/2025 08 AM PST            2.07             13         0      Not Applicable
  12/29/2025 09 AM PST            2.07             13         0      Not Applicable
  12/29/2025 10 AM PST            2.07             13         0      Not Applicable
  12/29/2025 11 AM PST            2.07             13         0      Not Applicable
  12/29/2025 12 PM PST            2.07             13         0      Not Applicable
  12/29/2025 01 PM PST            2.07             13         0      Not Applicable
  12/29/2025 02 PM PST            2.07             13         0      Not Applicable
  12/29/2025 03 PM PST            2.07             13         0      Not Applicable
  12/29/2025 04 PM PST            2.07             13         0      Not Applicable
  12/29/2025 05 PM PST            2.06             11         -      Not Applicable
  12/29/2025 06 PM PST            2.06             11         0      Not Applicable
  12/29/2025 07 PM PST            2.06             11         0      Not Applicable
  12/29/2025 08 PM PST            2.06             11         0      Not Applicable
  12/29/2025 09 PM PST            2.06             11         0      Not Applicable
  12/29/2025 10 PM PST            2.06             11         0      Not Applicable
  12/29/2025 11 PM PST            2.06             11         0      Not Applicable
  12/30/2025 12 AM PST            2.06             11         0      Not Applicable
  12/30/2025 01 AM PST            2.06             11         0      Not Applicable
  12/30/2025 02 AM PST            2.06             11         0      Not Applicable
  12/30/2025 03 AM PST            2.06             11         0      Not Applicable
  12/30/2025 04 AM PST            2.06             11         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.