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COSUMNES RIVER - MICHIGAN BAR (MHBC1)
| Latitude: 38.50º N | Longitude: 121.04º W | Elevation: 168 Feet | | Forecast Type: Official Location |
| Location: Sacramento County in California | Bulletin Group: San Joaquin | River Group: North San Joaquin |
| Issuance Time: | May 15 2026 at 7:53 AM PDT | Next Issuance: | May 16 2026 at 9:00 AM PDT
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| Action/Monitor: 7.0 Feet | Minor Flood: 12.0 Feet | Moderate Flood: 16.0 Feet | Major Flood: 18.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Cosumnes River - Michigan Bar (MHBC1)
#
# File Generation Time: 05/15/2026 at 07:55 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/10/2026 at 08:00 AM PDT
# Maximum Observed Stage: 4.39 Feet
# Maximum Observed Flow: 457 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/15/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 4.05 Feet
# Maximum Forecast Flow: 305 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/10/2026 07 AM PDT 4.39 457 Normal
05/10/2026 08 AM PDT 4.39 457 0 Normal
05/10/2026 09 AM PDT 4.38 452 - Normal
05/10/2026 10 AM PDT 4.37 447 - Normal
05/10/2026 11 AM PDT 4.37 447 0 Normal
05/10/2026 12 PM PDT 4.37 447 0 Normal
05/10/2026 01 PM PDT 4.36 442 - Normal
05/10/2026 02 PM PDT 4.36 442 0 Normal
05/10/2026 03 PM PDT 4.35 437 - Normal
05/10/2026 04 PM PDT 4.35 437 0 Normal
05/10/2026 05 PM PDT 4.35 437 0 Normal
05/10/2026 06 PM PDT 4.35 437 0 Normal
05/10/2026 07 PM PDT 4.35 437 0 Normal
05/10/2026 08 PM PDT 4.35 437 0 Normal
05/10/2026 09 PM PDT 4.34 432 - Normal
05/10/2026 10 PM PDT 4.35 437 + Normal
05/10/2026 11 PM PDT 4.35 437 0 Normal
05/11/2026 12 AM PDT 4.34 432 - Normal
05/11/2026 01 AM PDT 4.34 432 0 Normal
05/11/2026 02 AM PDT 4.34 432 0 Normal
05/11/2026 03 AM PDT 4.33 427 - Normal
05/11/2026 04 AM PDT 4.33 427 0 Normal
05/11/2026 05 AM PDT 4.32 422 - Normal
05/11/2026 06 AM PDT 4.33 427 + Normal
05/11/2026 07 AM PDT 4.32 422 - Normal
05/11/2026 08 AM PDT 4.31 418 - Normal
05/11/2026 09 AM PDT 4.31 418 0 Normal
05/11/2026 10 AM PDT 4.30 413 - Normal
05/11/2026 11 AM PDT 4.30 413 0 Normal
05/11/2026 12 PM PDT 4.29 408 - Normal
05/11/2026 01 PM PDT 4.35 437 + Normal
05/11/2026 02 PM PDT 4.34 432 - Normal
05/11/2026 03 PM PDT 4.34 432 0 Normal
05/11/2026 04 PM PDT 4.29 408 - Normal
05/11/2026 05 PM PDT 4.28 403 - Normal
05/11/2026 06 PM PDT 4.29 408 + Normal
05/11/2026 07 PM PDT 4.28 403 - Normal
05/11/2026 08 PM PDT 4.29 408 + Normal
05/11/2026 09 PM PDT 4.28 403 - Normal
05/11/2026 10 PM PDT 4.28 403 0 Normal
05/11/2026 11 PM PDT 4.28 403 0 Normal
05/12/2026 12 AM PDT 4.27 399 - Normal
05/12/2026 01 AM PDT 4.27 399 0 Normal
05/12/2026 02 AM PDT 4.26 394 - Normal
05/12/2026 03 AM PDT 4.26 394 0 Normal
05/12/2026 04 AM PDT 4.26 394 0 Normal
05/12/2026 05 AM PDT 4.25 389 - Normal
05/12/2026 06 AM PDT 4.25 389 0 Normal
05/12/2026 07 AM PDT 4.25 389 0 Normal
05/12/2026 08 AM PDT 4.24 385 - Normal
05/12/2026 09 AM PDT 4.24 385 0 Normal
05/12/2026 10 AM PDT 4.24 385 0 Normal
05/12/2026 11 AM PDT 4.23 380 - Normal
05/12/2026 12 PM PDT 4.23 380 0 Normal
05/12/2026 01 PM PDT 4.22 376 - Normal
05/12/2026 02 PM PDT 4.22 376 0 Normal
05/12/2026 03 PM PDT 4.22 376 0 Normal
05/12/2026 04 PM PDT 4.21 371 - Normal
05/12/2026 05 PM PDT 4.20 367 - Normal
05/12/2026 06 PM PDT 4.20 367 0 Normal
05/12/2026 07 PM PDT 4.19 363 - Normal
05/12/2026 08 PM PDT 4.18 358 - Normal
05/12/2026 09 PM PDT 4.18 358 0 Normal
05/12/2026 10 PM PDT 4.18 358 0 Normal
05/12/2026 11 PM PDT 4.18 358 0 Normal
05/13/2026 12 AM PDT 4.18 358 0 Normal
05/13/2026 01 AM PDT 4.18 358 0 Normal
05/13/2026 02 AM PDT 4.18 358 0 Normal
05/13/2026 03 AM PDT 4.17 354 - Normal
05/13/2026 04 AM PDT 4.17 354 0 Normal
05/13/2026 05 AM PDT 4.17 354 0 Normal
05/13/2026 06 AM PDT 4.16 350 - Normal
05/13/2026 07 AM PDT 4.16 350 0 Normal
05/13/2026 08 AM PDT 4.16 350 0 Normal
05/13/2026 09 AM PDT 4.15 346 - Normal
05/13/2026 10 AM PDT 4.15 346 0 Normal
05/13/2026 11 AM PDT 4.15 346 0 Normal
05/13/2026 12 PM PDT 4.14 341 - Normal
05/13/2026 01 PM PDT 4.14 341 0 Normal
05/13/2026 02 PM PDT 4.14 341 0 Normal
05/13/2026 03 PM PDT 4.13 337 - Normal
05/13/2026 04 PM PDT 4.13 337 0 Normal
05/13/2026 05 PM PDT 4.13 337 0 Normal
05/13/2026 06 PM PDT 4.13 337 0 Normal
05/13/2026 07 PM PDT 4.13 337 0 Normal
05/13/2026 08 PM PDT 4.13 337 0 Normal
05/13/2026 09 PM PDT 4.12 333 - Normal
05/13/2026 10 PM PDT 4.12 333 0 Normal
05/13/2026 11 PM PDT 4.11 329 - Normal
05/14/2026 12 AM PDT 4.11 329 0 Normal
05/14/2026 01 AM PDT 4.11 329 0 Normal
05/14/2026 02 AM PDT 4.11 329 0 Normal
05/14/2026 03 AM PDT 4.11 329 0 Normal
05/14/2026 04 AM PDT 4.11 329 0 Normal
05/14/2026 05 AM PDT 4.11 329 0 Normal
05/14/2026 06 AM PDT 4.10 325 - Normal
05/14/2026 07 AM PDT 4.10 325 0 Normal
05/14/2026 08 AM PDT 4.13 337 + Normal
05/14/2026 09 AM PDT 4.12 333 - Normal
05/14/2026 10 AM PDT 4.11 329 - Normal
05/14/2026 11 AM PDT 4.11 329 0 Normal
05/14/2026 12 PM PDT 4.11 329 0 Normal
05/14/2026 01 PM PDT 4.11 329 0 Normal
05/14/2026 02 PM PDT 4.11 329 0 Normal
05/14/2026 03 PM PDT 4.10 325 - Normal
05/14/2026 04 PM PDT 4.10 325 0 Normal
05/14/2026 05 PM PDT 4.10 325 0 Normal
05/14/2026 06 PM PDT 4.09 321 - Normal
05/14/2026 07 PM PDT 4.09 321 0 Normal
05/14/2026 08 PM PDT 4.09 321 0 Normal
05/14/2026 09 PM PDT 4.09 321 0 Normal
05/14/2026 10 PM PDT 4.09 321 0 Normal
05/14/2026 11 PM PDT 4.08 317 - Normal
05/15/2026 12 AM PDT 4.08 317 0 Normal
05/15/2026 01 AM PDT 4.08 317 0 Normal
05/15/2026 02 AM PDT 4.08 317 0 Normal
05/15/2026 03 AM PDT 4.07 313 - Normal
05/15/2026 04 AM PDT 4.06 309 - Normal
05/15/2026 05 AM PDT 4.06 309 0 Normal
05/15/2026 06 AM PDT 4.06 309 0 Normal
05/15/2026 07 AM PDT 4.05 305 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/15/2026 08 AM PDT 4.05 305 Normal
05/15/2026 09 AM PDT 4.05 305 0 Normal
05/15/2026 10 AM PDT 4.05 305 0 Normal
05/15/2026 11 AM PDT 4.05 305 0 Normal
05/15/2026 12 PM PDT 4.04 301 - Normal
05/15/2026 01 PM PDT 4.04 301 0 Normal
05/15/2026 02 PM PDT 4.04 301 0 Normal
05/15/2026 03 PM PDT 4.04 301 0 Normal
05/15/2026 04 PM PDT 4.03 297 - Normal
05/15/2026 05 PM PDT 4.03 297 0 Normal
05/15/2026 06 PM PDT 4.03 297 0 Normal
05/15/2026 07 PM PDT 4.03 297 0 Normal
05/15/2026 08 PM PDT 4.02 293 - Normal
05/15/2026 09 PM PDT 4.02 293 0 Normal
05/15/2026 10 PM PDT 4.02 293 0 Normal
05/15/2026 11 PM PDT 4.01 290 - Normal
05/16/2026 12 AM PDT 4.01 290 0 Normal
05/16/2026 01 AM PDT 4.01 290 0 Normal
05/16/2026 02 AM PDT 4.01 290 0 Normal
05/16/2026 03 AM PDT 4.00 286 - Normal
05/16/2026 04 AM PDT 4.00 286 0 Normal
05/16/2026 05 AM PDT 4.00 286 0 Normal
05/16/2026 06 AM PDT 4.00 286 0 Normal
05/16/2026 07 AM PDT 3.99 282 - Normal
05/16/2026 08 AM PDT 3.99 282 0 Normal
05/16/2026 09 AM PDT 3.99 282 0 Normal
05/16/2026 10 AM PDT 3.99 282 0 Normal
05/16/2026 11 AM PDT 3.98 278 - Normal
05/16/2026 12 PM PDT 3.98 278 0 Normal
05/16/2026 01 PM PDT 3.98 278 0 Normal
05/16/2026 02 PM PDT 3.98 278 0 Normal
05/16/2026 03 PM PDT 3.98 278 0 Normal
05/16/2026 04 PM PDT 3.97 275 - Normal
05/16/2026 05 PM PDT 3.97 275 0 Normal
05/16/2026 06 PM PDT 3.97 275 0 Normal
05/16/2026 07 PM PDT 3.97 275 0 Normal
05/16/2026 08 PM PDT 3.96 271 - Normal
05/16/2026 09 PM PDT 3.96 271 0 Normal
05/16/2026 10 PM PDT 3.96 271 0 Normal
05/16/2026 11 PM PDT 3.96 271 0 Normal
05/17/2026 12 AM PDT 3.96 271 0 Normal
05/17/2026 01 AM PDT 3.95 267 - Normal
05/17/2026 02 AM PDT 3.95 267 0 Normal
05/17/2026 03 AM PDT 3.95 267 0 Normal
05/17/2026 04 AM PDT 3.95 267 0 Normal
05/17/2026 05 AM PDT 3.94 264 - Normal
05/17/2026 06 AM PDT 3.94 264 0 Normal
05/17/2026 07 AM PDT 3.94 264 0 Normal
05/17/2026 08 AM PDT 3.94 264 0 Normal
05/17/2026 09 AM PDT 3.94 264 0 Normal
05/17/2026 10 AM PDT 3.93 260 - Normal
05/17/2026 11 AM PDT 3.93 260 0 Normal
05/17/2026 12 PM PDT 3.93 260 0 Normal
05/17/2026 01 PM PDT 3.93 260 0 Normal
05/17/2026 02 PM PDT 3.93 260 0 Normal
05/17/2026 03 PM PDT 3.92 257 - Normal
05/17/2026 04 PM PDT 3.92 257 0 Normal
05/17/2026 05 PM PDT 3.92 257 0 Normal
05/17/2026 06 PM PDT 3.92 257 0 Normal
05/17/2026 07 PM PDT 3.92 257 0 Normal
05/17/2026 08 PM PDT 3.91 253 - Normal
05/17/2026 09 PM PDT 3.91 253 0 Normal
05/17/2026 10 PM PDT 3.91 253 0 Normal
05/17/2026 11 PM PDT 3.91 253 0 Normal
05/18/2026 12 AM PDT 3.90 250 - Normal
05/18/2026 01 AM PDT 3.90 250 0 Normal
05/18/2026 02 AM PDT 3.90 250 0 Normal
05/18/2026 03 AM PDT 3.90 250 0 Normal
05/18/2026 04 AM PDT 3.90 250 0 Normal
05/18/2026 05 AM PDT 3.90 250 0 Normal
05/18/2026 06 AM PDT 3.89 247 - Normal
05/18/2026 07 AM PDT 3.89 247 0 Normal
05/18/2026 08 AM PDT 3.89 247 0 Normal
05/18/2026 09 AM PDT 3.89 247 0 Normal
05/18/2026 10 AM PDT 3.89 247 0 Normal
05/18/2026 11 AM PDT 3.88 243 - Normal
05/18/2026 12 PM PDT 3.88 243 0 Normal
05/18/2026 01 PM PDT 3.88 243 0 Normal
05/18/2026 02 PM PDT 3.88 243 0 Normal
05/18/2026 03 PM PDT 3.88 243 0 Normal
05/18/2026 04 PM PDT 3.88 243 0 Normal
05/18/2026 05 PM PDT 3.87 240 - Normal
05/18/2026 06 PM PDT 3.87 240 0 Normal
05/18/2026 07 PM PDT 3.87 240 0 Normal
05/18/2026 08 PM PDT 3.87 240 0 Normal
05/18/2026 09 PM PDT 3.87 240 0 Normal
05/18/2026 10 PM PDT 3.86 237 - Normal
05/18/2026 11 PM PDT 3.86 237 0 Normal
05/19/2026 12 AM PDT 3.86 237 0 Normal
05/19/2026 01 AM PDT 3.86 237 0 Normal
05/19/2026 02 AM PDT 3.86 237 0 Normal
05/19/2026 03 AM PDT 3.85 233 - Normal
05/19/2026 04 AM PDT 3.85 233 0 Normal
05/19/2026 05 AM PDT 3.85 233 0 Normal
05/19/2026 06 AM PDT 3.85 233 0 Normal
05/19/2026 07 AM PDT 3.85 233 0 Normal
05/19/2026 08 AM PDT 3.85 233 0 Normal
05/19/2026 09 AM PDT 3.85 233 0 Normal
05/19/2026 10 AM PDT 3.84 230 - Normal
05/19/2026 11 AM PDT 3.84 230 0 Normal
05/19/2026 12 PM PDT 3.84 230 0 Normal
05/19/2026 01 PM PDT 3.84 230 0 Normal
05/19/2026 02 PM PDT 3.84 230 0 Normal
05/19/2026 03 PM PDT 3.84 230 0 Normal
05/19/2026 04 PM PDT 3.83 227 - Normal
05/19/2026 05 PM PDT 3.83 227 0 Normal
05/19/2026 06 PM PDT 3.83 227 0 Normal
05/19/2026 07 PM PDT 3.83 227 0 Normal
05/19/2026 08 PM PDT 3.83 227 0 Normal
05/19/2026 09 PM PDT 3.83 227 0 Normal
05/19/2026 10 PM PDT 3.82 224 - Normal
05/19/2026 11 PM PDT 3.82 224 0 Normal
05/20/2026 12 AM PDT 3.82 224 0 Normal
05/20/2026 01 AM PDT 3.82 224 0 Normal
05/20/2026 02 AM PDT 3.82 224 0 Normal
05/20/2026 03 AM PDT 3.82 224 0 Normal
05/20/2026 04 AM PDT 3.81 220 - Normal
05/20/2026 05 AM PDT 3.81 220 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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