Flood Warning Systems and CRS Credit · 2017. 3. 22. · Models run every two hours. ... Sisar Creek Upland Rain Intensity Rain 065, 163, 173 Obs 37 Adams Barranca Upland Rain Intensity

Public Works Agency

Ventura County

Watershed

Protection District

Watershed

Resources and

Technology Division

Flood Warning Systems and

CRS Credit

Presented to:

AUG 2016 Workshop

Bruce Rindahl, Manager – WR&T Division

Visual 320.2Visual 600-2

610 Flood Warning and Response

611.b Activity credit criteria

(1) First four elements: must have credit from each

(2) Description of the flood hazard

(Could be in floodplain management/mitigation plan)

(3) Flood inundation map

(4) Adopted warning and response plan

(5) Outreach project

Manual Pages 610-3 – 4

610 – Flood Warning and Response

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Slide 3

VCAHPS(Ventura County Advanced Hydrological Prediction System)

NWS River Forecast Center stream

forecasts at 5 locations

QPF estimates at 92 locations in Ventura

County (private contract).

HEC-1/HEC-HMS Hydrologic Model

HSPF Hydrologic Model

Flood Warning System Network

Graphical Decision Support Tools

Ventura County Watershed Protection District – Watershed Resources and Technology DivisionThursday, Oct. 20 2016

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Slide 4

Flood Warning System Network


Automated rainfall, stream flow and weather stations.

ALERT, APCD, and GOES communication.

Data is processed every two minutes for models and display.

Models run every two hours.

Multiple displays use the same data set.

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Slide 5

Precipitation Display


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Slide 6

Document Institutional

Knowledge


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Slide 7

Flood Threat Recognition


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Slide 8

Flood Threat Recognition


Watercourse Hazard Warning Criteria VCAHPS/Gages F/O Structures

Santa Clara River Floodplain River Stage/Flow 707, 723, 724, 725 Both 302

Hopper Canyon Floodplain/Alluvial River Stage/Flow, Rain Intensity 701, Rain 409 Both 11

Pole Creek Upland/Floodplain River Stage/Flow 713 Both 0

Santa Paula Creek Upland/Floodplain River Stage/Flow 709 Both 7

Fagan Canyon Upland/Urban Rain Intensity 725, Rain 245, 406 Both 0

Todd Barranca Upland/Floodplain River Stage/Flow, Rain Intensity 738, Rain 175, 225 Fcst 65

Ellsworth Barranca Upland/Floodplain River Stage/Flow 731 Both 24

Harmon Barranca Upland/Floodplain River Stage/Flow 732 Fcst 0

Moon Ditch Urban/Upland River Stage/Flow, Rain Intensity MO-VEN, Rain 222 Both 0

El Rio Drain Urban/Upland River Stage/Flow, Rain Intensity MO-OXN, Rain 239 Both 0

Edwards Canyon Upland Rain Intensity Rain 106 Obs 8

Real-Warring Cyn Upland Rain Intensity Rain 106 Obs 15

Torrey Canyon Upland Rain Intensity Rain 242 Obs 5

Shields Canyon Upland Rain Intensity Rain 171 Obs 6

Bosolo Ditch Upland Rain Intensity Rain 199, 171 Obs 4

Grimes Canyon Upland Rain Intensity Rain 199, 171 Obs 40

Bardsdale Ditch Upland Rain Intensity Rain 199, 171 Obs 41

Reimer Ditch Upland Rain Intensity Rain 199 Obs 13

O’Leary Creek Upland Rain Intensity Rain 199 Obs 8

Balcom Cyn Wash Upland Rain Intensity Rain 238 Obs 5

Boisey/Timber Cyn Upland Rain Intensity Rain 245 Obs 12

Orcutt Canyon Upland Rain Intensity Rain 245 Obs 24

Sisar Creek Upland Rain Intensity Rain 065, 163, 173 Obs 37

Adams Barranca Upland Rain Intensity Rain 245, 406 Obs 13

Haines Barranca Upland Rain Intensity Rain 406, 175 Obs 10

All other Creeks Upland Rain Intensity Various Rain Obs 7

Total 657

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Slide 9

VCAHPS Displays


Color coded threat levels.

Rainfall, streamflow and forecasts

Color coded action levels and SOP.

Interactive mapping.

Links to supplemental information

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Slide 10

Streamflow Displays


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Slide 11Ventura County Watershed Protection District – Watershed Resources and Technology DivisionThursday, Oct. 20 2016





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Slide 14Ventura County Watershed Protection District – Watershed Resources and Technology DivisionThursday, Oct. 20 2016

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Slide 15Ventura County Watershed Protection District – Watershed Resources and Technology DivisionWednesday, Sept. 21 2016


612.b Emergency warning dissemination (EWD)

Credit criteria

(1) Meet activity credit criteria

(2) Must reach people in a timely manner

(3) Testing

Credit points

Cumulative

Max: 75

Manual Pages 610-8 – 9


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Slide 17

Twitter Alarm Notification


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Slide 18

Twitter Alarm Notification


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Slide 19

Twitter Alarm Heatmap


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Slide 20

Getting the word out


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Slide 21

What can go wrong?


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Slide 22

What can go wrong?


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Slide 23

What can go wrong?

Ventura County Watershed Protection District – Watershed Resources and Technology DivisionWednesday, Sept 21, 2016

Public Works Agency

Ventura County

Watershed

Protection District

Watershed

Resources and

Technology Division

Flood Warning Systems and

CRS Credit

Presented to:

AUG 2016 Workshop

Bruce Rindahl, Manager – WR&T Division

Documents

Flood Warning Systems and CRS Credit · 2017. 3. 22. · Models run every two hours. ... Sisar Creek Upland Rain Intensity Rain 065, 163, 173 Obs 37 Adams Barranca Upland Rain Intensity