# Presentation: 472396

## Brian McInerney

- Hydrologist

- Water Supply Outlook

- National Weather Service

- April 2008

## March Temperature - Precipitation

## Peak Flow Forecast

## Great Basin Peak Flow Forecast

## Upper Colorado Basin Peak Flow Forecast

## Upper Colorado Basin Peak Flow Forecast (Continued)

## Lower Colorado Basin Peak Flow Forecast

## SnowCourtesy NRCS

## Bear River Basin Snow

## Weber River Basin Snow

## Six Creeks River Basin Snow

## Provo River Basin Snow

## Duchesne River Basin Snow

## Green River Basin Snow

## Sevier River Basin Snow

## Virgin River Basin Snow

## Water Supply Forecast

## Forecasted Spring Runoff Volumes

- January/February/March/April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
- Utah Area River Basins

**>150%**

**129 – 150%**

**110 – 129%**

**  ****90 – 109%**

**  ****70 –   89%**

**  ****50 –   69%**

**<50%**

**Utah**

**Wyoming**

**Idaho**

**Colorado**

**Arizona**

## Evolution of Northern Utah Forecast

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Bear River Basin**

**>150%**

**129 – 150%**

**110 – 129%**

**  ****90 – 109%**

**  ****70 –   89%**

**  ****50 –   69%**

**<50%**

- Logan

**91%**

- Bear Lake

- Blacksmith Fork

**92%**

- Ut/Wy
- Stateline

**106%**

- Woodruff

**103%**

## Bear/Utah Wyoming State Line

## Bear River Basin Conditions

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Weber River Basin**

**>150%**

**130 – 159%**

**110 – 129%**

**  ****70 –   89%**

**  ****50 –   69%**

**<50%**

**  ****90 – 109%**

- Pineview Res.

**102%**

- Gateway

**103%**

- Chalk Creek

**100%**

- Weber River

- East Canyon Res.

**106%**

- Ogden River

- Lost Creek Res.

**102%**

- Oakley

**102%**

## Weber nr Oakley River Gage

## Weber River Basin Conditions

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Six Creeks River Basin**

- City Creek

**>150%**

**129 – 150%**

**110 – 129%**

**  ****50 –   69%**

**<50%**

**  ****70 –   89%**

**  ****90 – 109%**

**110%**

- Little Cottonwood Creek

**105%**

- Big Cottonwood Creek

**105%**

- Jordan River

- Mill Creek

**114%**

- Parleys Creek

**113%**

- Emigration Ck.

**111%**

- Dell Fk.

## Little Cottonwood Creek

## Six Creeks River Basin Conditions

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Provo River Basin**

**>150%**

**129 – 150%**

**110 – 129%**

**  ****90 – 109%**

**  ****70 –   89%**

**<50%**

**  ****50 –   69%**

- Utah Lake

- Jordanelle Res

**104%**

- Provo River

- Woodland

**104%**

- American Fork

**104%**

- Spanish Fork

**104%**

- Deer Creek Res

**103%**

## Provo nr Woodland

## Provo River Basin Conditions

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Green River Basin**

- Upper Stillwater

- Green River

**101%**

- Scofield Res.

- Lake Powell Res.

**120%**

**109%**

- Starvation Res.

**107%**

**115%**

- Randlett

**108%**

- Myton

- Red Fleet Res.

- Tabiona

**107%**

- Strawberry Res.

**106%**

**110%**

- Flaming Gorge Res.

**75%**

- Moon Lake

**106%**

**>150%**

**129 – 150%**

**110 – 129%**

**  ****90 – 109%**

**  ****50 –   69%**

**<50%**

**  ****70 –   89%**

**106%**

## Duchesne nr Tabiona

## Evolution of Green River Basin Forecast

## Green River  Basin Conditions

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Sevier River Basin**

**98%**

- Cedar City

- Hatch

**105%**

- Beaver River

**89%**

- Minersville

**90%**

- Kingston

**101%**

- Beaver

- Sevier River

- EF Sevier River

**108%**

- Piute Res.

**107%**

- Sevier

**100%**

- Gunnison

**110%**

**>150%**

**129 – 150%**

**110 – 129%**

**  ****50 –   69%**

**<50%**

**  ****90 – 109%**

**  ****70 –   89%**

- Kingston

## Sevier River near Hatch

## Evolution of Sevier River Basin Forecast

## Sevier River Basin Conditions

## Forecasted Utah Spring Snowmelt Runoff Volume

- April 1st, 2008
- April Through July Volume Forecast
- Percent of 30 Year Average Flows
**Virgin River Basin**

- Santa Clara River

- NF Virgin River

- EF Virgin River

- Pine Valley

- Littlefield, AZ

- Virgin

- Hurricane

**93%**

**80%**

**95%**

**91%**

**>150%**

**129 – 150%**

**110 – 129%**

**  ****70 –   89%**

**  ****50 –   69%**

**  ****90 – 109%**

**<50%**

## Evolution of Virgin Forecast

## Santa Clara River near Pine Valley

## Virgin Basin Conditions

## Long Term Forecast

## Current Conditions in the Equatorial Pacific

## Actual Temperature

## Temperature Anomalies

## Sea Surface Temperatures by Depth

## Short Term Forecast

## Click on logo for Salt Lake City Forecast

## Contact Information

- Contact Information

- Brian McInerney801.971.2033 cbrian.mcinerney@noaa.gov