Water Supply Outlook

WATER SUPPLY OUTLOOK
NATIONAL WEATHER SERVICE PUEBLO CO
430 PM MST FRI MAR 5 2010

...WATER SUPPLY OUTLOOK FOR SOUTH CENTRAL AND SOUTHEAST COLORADO AS
OF MARCH 1 2010...

AS OF MARCH 1...THE 2010 SNOWPACK IS GENERALLY RUNNING IN THE
BALLPARK OF AVERAGE. IN THE UPPER RIO GRANDE BASIN...THE SNOWPACK
WAS AT 109 PERCENT OF AVERAGE OVERALL...DOWN FROM 113 PERCENT OF
AVERAGE LAST MONTH AT THIS TIME...AND TRACKING A LITTLE BEHIND LAST
YEAR`S 114 PERCENT OF AVERAGE AT THIS TIME. IN THE ARKANSAS
BASIN...THE SNOWPACK WAS AT 95 PERCENT OF AVERAGE OVERALL...UP FROM
89 PERCENT OF AVERAGE LAST MONTH AT THIS TIME...BUT TRACKING BELOW
THE SNOWPACK LAST YEAR AT THIS TIME WHICH WAS 109 PERCENT OF AVERAGE.

BOTH THE RIO GRANDE BASIN AND ARKANSAS BASIN SAW NEAR AVERAGE
PRECIPITATION LAST MONTH. THE RIO GRANDE BASIN REPORTED OVER 90
PERCENT OF AVERAGE PRECIPITATION...WHILE THE ARKANSAS BASIN REPORTED
105 PERCENT OF AVERAGE PRECIPITATION. WATER YEAR PRECIPITATION IN
THE RIO GRANDE AND ARKANSAS BASINS IS NOW AT 105 PERCENT OF
AVERAGE...AND 92 PERCENT OF AVERAGE...RESPECTIVELY.

OVERALL RESERVOIR STORAGE IS GENERALLY RUNNING NEAR AVERAGE ACROSS
SOUTHERN COLORADO. STORAGE IN THE RIO GRANDE BASIN ON MARCH 1ST WAS
AT 94 PERCENT OF AVERAGE OVERALL...COMPARED TO 86 PERCENT OF AVERAGE
LAST YEAR AT THIS TIME. IN THE ARKANSAS BASIN...STORAGE WAS AT 103
PERCENT OF AVERAGE OVERALL...COMPARED TO 93 PERCENT OF AVERAGE LAST
YEAR AT THIS TIME.

STREAMFLOW VOLUMES FOR THE RUNOFF SEASON ARE GENERALLY OUTLOOKED TO
BE NEAR AVERAGE IN THE RIO GRANDE BASIN. FOLLOWING ARE STREAMFLOW
FORECASTS FOR SELECTED LOCATIONS IN THE UPPER RIO GRANDE BASIN
ASSUMING NORMAL PRECIPITATION DURING THE NEXT FEW MONTHS:

LOCATION                   % OF AVERAGE     RUNOFF PERIOD

RIO GRANDE RIVER
THIRTY MILE BRIDGE 94 APR-SEP
WAGON WHEEL GAP 96 APR-SEP
NEAR DEL NORTE 100 APR-SEP
SOUTH FORK RIO GRANDE RIVER
SOUTH FORK 104 APR-SEP
SAGUACHE CREEK
NEAR SAGUACHE 85 APR-SEP
ALAMOSA CREEK
TERRACE RESERVOIR INFLOW 104 APR-SEP
LA JARA CREEK
NEAR CAPULIN 103 MAR-JUL
TRINCHERA CREEK
ABOVE TURNERS RANCH 100 APR-SEP
CONEJOS RIVER
PLATORO RESERVOIR INFLOW 96 APR-SEP
NEAR MOGOTE 108 APR-SEP
CULEBRA CREEK
SAN LUIS 96 APR-SEP
SAN ANTONIO RIVER
ORTIZ 110 APR-SEP
LOS PINOS
ORTIZ 110 APR-SEP

STREAMFLOW VOLUMES FOR THE RUNOFF SEASON ARE GENERALLY OUTLOOKED TO
BE NEAR AVERAGE IN THE ARKANSAS BASIN. FOLLOWING ARE STREAMFLOW
FORECASTS FOR SELECTED LOCATIONS IN THE UPPER ARKANSAS BASIN
ASSUMING NORMAL PRECIPITATION DURING THE NEXT FEW MONTHS:

LOCATION                   % OF AVERAGE     RUNOFF PERIOD

ARKANSAS RIVER
GRANITE 90 APR-SEP
SALIDA 94 APR-SEP
CANON CITY 93 APR-SEP
ABOVE PUEBLO 90 APR-SEP
CHALK CREEK
NEAR NATHROP 89 APR-SEP
GRAPE CREEK
NEAR WESTCLIFFE 102 APR-SEP
HUERFANO RIVER
NEAR REDWING 111 APR-SEP
CUCHARAS RIVER
NEAR LA VETA 107 APR-SEP
PURGATOIRE RIVER
TRINIDAD 91 APR-SEP

THESE FORECASTS REFLECT NATURAL FLOW ONLY.  ACTUAL OBSERVED FLOW
WILL LIKELY BE AFFECTED BY UPSTREAM WATER MANAGEMENT.

THIS OUTLOOK IS BASED ON RECENT OBSERVATIONS OF SNOWPACK AND ASSUMES
NORMAL PRECIPITATION FOR THE REMAINDER OF THE SNOW SEASON. IF THE
ACTUAL OBSERVED PRECIPITATION DEVIATES FROM NORMAL...THEN THE ACTUAL
OBSERVED RUNOFF WILL LIKELY BE DIFFERENT THAN THE FORECASTS IN THIS
OUTLOOK. AN UPDATED OUTLOOK WILL BE ISSUED IN EARLY APRIL.

USERS OF THIS PRODUCT ARE ENCOURAGED TO CONTACT THE NATIONAL WEATHER
SERVICE IN PUEBLO FOR CONTINUED UPDATES ON THE WATER SUPPLY
SITUATION. METEOROLOGICAL CONDITIONS COULD DEVELOP THAT WOULD HAVE
A SIGNIFICANT IMPACT ON WATER SUPPLY FORECASTS.

FOR ADDITIONAL HYDROLOGIC PRODUCTS AVAILABLE ON THE WORLD WIDE
WEB...VISIT THE PUEBLO NATIONAL WEATHER SERVICE WEB SITE AT
WEATHER.GOV/PUB.

THIS MESSAGE IS THE RESULT OF COORDINATED ACTIVITY BETWEEN THE
NATIONAL WEATHER SERVICE AND THE NATURAL RESOURCES CONSERVATION
SERVICE.

$$

LW


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