National Weather Service Text Product Display

Flood Potential Outlook
Issued by NWS Denver/Boulder, CO
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FGUS75 KBOU 052027 RRA
ESFBOU
COC001-005-013-014-019-031-035-039-047-049-057-059-069-073-075-087-
093-095-115-117-121-123-252300-

WATER SUPPLY OUTLOOK
NATIONAL WEATHER SERVICE DENVER CO
227 PM MDT FRI APR 05 2013

NATIONAL WEATHER SERVICE STREAMFLOW FORECASTS FOR NORTH CENTRAL AND
NORTHEAST COLORADO AS OF APRIL 2013.

THE MOUNTAIN SNOWPACK REMAINED FAIRLY STEADY THE PAST MONTH.
HOWEVER...IT IS EXCEEDINGLY UNLIKELY IT WILL REACH ITS NORMAL PEAK.
THE APRIL 5TH SNOWPACK WAS 70 PERCENT OF AVERAGE IN THE SOUTH PLATTE
BASIN...74 PERCENT OF AVERAGE IN THE UPPER COLORADO RIVER BASIN AND
79 PERCENT OF AVERAGE IN THE NORTH PLATTE BASIN. THIS IS THE FIFTH
LOWEST APRIL 5TH SNOWPACK IN THE PAST 35 YEARS AND THE SECOND OF TWO
CONSECUTIVE YEARS WITH A LOW SNOWPACK IN THE NORTH CENTRAL COLORADO
MOUNTAINS.

COMBINED RESERVOIR STORAGE REMAINED NEARLY STEADY THE PAST MONTH.
END OF MARCH COMBINED STORAGE WAS ONLY 66 PERCENT OF AVERAGE IN THE
UPPER COLORADO RIVER BASIN AND 84 PERCENT OF AVERAGE IN THE SOUTH
PLATTE BASIN. SINCE 1997 THE ONLY END OF MARCH COMBINED RESERVOIR
STORAGE IN NORTH CENTRAL AND NORTHEAST COLORADO LOWER THAN THIS YEAR
WAS IN 2003.

STREAM VOLUME FORECASTS ACROSS NORTH CENTRAL COLORADO REMAIN MUCH
BELOW AVERAGE. FOLLOWING ARE THE FORECASTS FOR SELECTED LOCATIONS:

                             MOST PROBABLY FORECAST
                                      VOLUME      PERCENT
STREAM AND STATION         PERIOD     1000 AF      OF AVG
__________________         ______     _______     _______
SOUTH PLATTE RIVER
 ANTERO RESERVOIR INFLOW   APR-SEP       8.3        47
 SPINNEY MTN RES INFLOW    APR-SEP      33          54
 11-MILE CANYON RES INFLOW APR-SEP      33          52
 CHEESMAN LAKE INFLOW      APR-SEP      64          51
 SOUTH PLATTE              APR-SEP     111          49

BEAR CREEK
 EVERGREEN ABV             APR-SEP      12.5        60
 MORRISON                  APR-SEP      14.1        50

CLEAR CREEK
 GOLDEN                    APR-SEP      94          73

ST VRAIN CREEK
 LYONS                     APR-SEP      58          56

BOULDER CREEK
 ORODELL                   APR-SEP      43          68

SOUTH BOULDER CREEK
 ELDORADO SPRINGS          APR-SEP      59          65

BIG THOMPSON RIVER
 CANYON MOUTH              APR-SEP      59          55

CACHE LA POUDRE
 CANYON MOUTH              APR-SEP     166          66

NORTH PLATTE RIVER
 NORTHGATE                 APR-SEP     115          46

COLORADO RIVER
 LAKE GRANBY               APR-JUL     130          59
 KREMMLING                 APR-JUL     510          59

WILLOW CREEK
 WILLOW CREEK RES          APR-JUL      33          70

FRASER RIVER
 WINTER PARK               APR-JUL      12.5        64

WILLIAMS FORK RIVER
 WILLIAMS FORK RES         APR-JUL      63          66

BLUE RIVER
 DILLON RES                APR-JUL     100          61
 GREEN MTN RES             APR-JUL     172          63

MUDDY CREEK
 WOLFORD MTN RES BLW       APR-JUL      32          59

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

ADDITIONAL SUPPORTIVE INFORMATION (WEB ADDRESSES ARE IN LOWER CASE):
-VISIT OUR WEB SITE AT WWW.WEATHER.GOV/BOU FOR MORE LOCAL
WEATHER...CLIMATE AND STREAM INFORMATION.
-LONG RANGE PRECIPITATION AND TEMPERATURE OUTLOOKS ARE AVAILABLE AT
HTTP://WWW.CPC.NCEP.NOAA.GOV/PRODUCTS/PREDICTIONS/.
-SNOWPACK AND RESERVOIR DATA ARE AVAILABLE FROM THE NATURAL
RESOURCES CONSERVATIONS SERVICE AT HTTP://WWW.CO.NRCS.USDA.GOV/SNOW/.
-THE U.S. DROUGHT MONITOR IS AVAILABLE AT
HTTP://DROUGHT.UNL.EDU/DM/MONITOR.HTML.

$$
TH
National Weather Service Weather Forecast Office
