cbrfc june 2014 water supply webinar
DESCRIPTION
CBRFC June 2014 Water Supply Webinar. June 5, 2014 Paul Miller. These slides: www.cbrfc.noaa.gov/present/present.php. June Water Supply Webinar. May Weather & Streamflow Snow Situation Water supply forecasts Upcoming weather and climate. May 2014 Upper Air Pattern. - PowerPoint PPT PresentationTRANSCRIPT
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CBRFCJune 2014
Water Supply Webinar
June 5, 2014
Paul Miller
These slides: www.cbrfc.noaa.gov/present/present.php
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June Water Supply Webinar
• May Weather & Streamflow• Snow Situation• Water supply forecasts• Upcoming weather and climate
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May 2014 Upper Air PatternWEEK-1: Calm weather and near average temps
WEEK-2: Colder weather and storm activity, particularly in GB and UC regions
WEEK-3: Warming temps in the north and less storm activity
WEEK-4: Well-above average temps drove increases to streamflow rates
Generally warmer and less stormy
Generally cooler and more stormy
Inconsistent geopotential heights across latitudes can mean:
Plots available via: http://www.esrl.noaa.gov/psd/data/composites/day/
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Tower SNOTEL – May Accumulated Precipitation
Storm activity in the region
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Tower SNOTEL – May Temperature
Warming in the region
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May Streamflow
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Precipitation
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Temperatures
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June 3rd Snow
• Snow still prevalent in the Upper Colorado Headwater and Green River Basins
• Not much snow left in Eastern Great Basin or San Juan regions.
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Snow in the CBRFC Hydrologic
Model
SWE as a percent of the model average
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Basin Snow Groups:
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Basin Snow Groups:
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April – May ObservationsApr-May Volumes / % Average
Lake Powell: 3050 KAF / 90%
Flaming Gorge: 460 KAF / 121%
Navajo Res: 300 KAF / 67%
Blue Mesa: 370 KAF / 126%
Colorado-Cameo: 1300 KAF / 138%
Yampa-Deerlodge:850 KAF / 115%
Weber-Oakley: 50 KAF / 92%
Virgin-Virgin: 10.9 KAF / 25%
McPhee Res: 120 KAF / 61%
Provo-Woodland: 57 KAF / 108%
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April – July ForecastsApr-July Volumes / % Average
Lake Powell: 7550 KAF / 105%
Flaming Gorge: 1320 KAF / 135%
Navajo Res: 455 KAF / 62%
Blue Mesa: 860 KAF / 128%
Colorado-Cameo: 3140 KAF / 133%
Yampa-Deerlodge:1550 KAF / 125%
Weber-Oakley: 92 KAF / 78%
Virgin-Virgin: 19 KAF / 32%
McPhee Res: 190 KAF / 64%
Provo-Woodland: 95 KAF / 95%
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10 %50%90%
June 1st Official Forecast
Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
7550 KAF/105%
ESP will be a combination of forecast + observed to date
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
1130 KAF/156 %
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
1550 KAF/125 %
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
3140 KAF/133%
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
118 KAF/119%
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
860 KAF/127%
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
455 KAF / 62%
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Daily Ensemble Streamflow Prediction (ESP) Model Run & Official Forecast
Available at: www.cbrfc.noaa.gov Select: Water Supply Click: Point of Interest
92 KAF/ 78 %
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April – July RankingsProjected Apr-Jul Volumes / Rank (1-Wettest)
Colorado River at Kremmling:1430 KAF/ 3
West Canyon Creek:0.16 KAF/ 38 (driest)
LambsCreek:1.25 KAF/ 42 ( 3rd driest)
Much of the Colorado Headwaters region above Kremmling is in the top 5
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Quantitative Precipitation ForecastWeather Prediction Center
June 4 – 11
www.hpc.ncep.noaa.gov
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Maximum Temperature Anomaly: June 7 – 11
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Long Term Precipitation OutlookClimate Prediction Center
www.cpc.ncep.noaa.gov
Jun 2014 Jun – Aug 2014
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• El Niño conditions expected to develop by summer– Correlation is not particularly strong over the
Upper Colorado River Basin– Correlation is with precipitation and temperatures,
which is not always directly reflected in streamflows
• Climate in our region is influenced by other teleconnections
• http://www.climate.gov/news-features/department/8443/all
Looking ahead
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Peak Flows
• Many sites are peaking this time of year• When sites are near peak do NOT check the
peak flow page– Daily forecasts updated more frequently– More responsive to changes in regulation and
weather conditions– Peak forecast page will not be updated again this
year
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• Key Water Supply Contacts:– Michelle Stokes ([email protected]) (Hydrologist in Charge)– Brenda Alcorn ([email protected]) (Upper Colorado)– Ashley Nielson ([email protected]) (Green + Yampa / White)– Greg Smith ([email protected]) (San Juan + Gunnison + Dolores)– Paul Miller ([email protected]) (Great Basin)– Tracy Cox ([email protected]) (Lower Colorado + Virgin + Sevier)
Please contact us with any specific questions