Extended Streamflow Guidance
Issued by NWS

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000
FGUS65 KSTR 172150
ESGCO

NATIONAL WEATHER SERVICE
COLORADO BASIN RIVER FORECAST CENTER
SALT LAKE CITY, UT


                      SPRING FLOOD POTENTIAL
             FOR THE COLORADO RIVER BASIN WITHIN COLORADO

                         APRIL 17, 2024


Currently, the following sites are forecast to have mean daily peak flows
at or above the listed threshold at the given exceedance level:

  Segment                     Threshold   Exceedance Value
                                          (probability)
  -------                     --------    -------------
Yampa-Maybell                  Bankfull        50
Green-Jensen                   Bankfull        50
Elk-Milner                     Bankfull        25
Yampa-Deerlodge                Bankfull        25
Eagle-Gypsum                   Bankfull        25
Colorado-Dotsero               Bankfull        10
Colorado-Cameo                 Bankfull        10
Gunnison-Grand Junction        Bankfull        10
Colorado-CO-UT Stateline       Bankfull        10
Lost Canyon Ck-Dolores         Bankfull        10

Peak flow procedures and flood flow levels do not exist for all streams.

It is important to keep in mind that an extended period of much
above normal temperatures or heavy rainfall during the melt period
can cause or exacerbate flooding problems in any year.

It should be emphasized that snow typically accumulates into April,
therefore conditions may change before the runoff begins.

Precipitation:Water Year(October-March)
Green River                105%
Duchesne                   105%
Yampa/White                110%
Upper CO Mainstem          105%
Gunnison                   100%
Dolores/San Miguel          90%
San Juan                    90%

Snow Water Equivalent:April 16
Green River                 95%
Duchesne                   115%
Yampa/White                115%
Upper CO Mainstem          105%
Gunnison                   100%
Dolores/San Miguel         105%
San Juan                    95%

April-July Water Supply Volumes:April 17
Green River                 75-105%
Duchesne                    75-145%
Yampa/White                 95-115%
Upper CO Mainstem           90-135%
Gunnison                    50-100%
Dolores/San Miguel          55-70%
San Juan                    65-75%

A list of specific spring peak flow forecasts is available at:
http://www.cbrfc.noaa.gov/dbdata/station/peakgraph/list/peaklist.html?type=rank

A map of the current spring peak flow forecasts is available at:
http://www.cbrfc.noaa.gov/lmap/lmap.php?interface=peakfp


SPECIAL MEAN DAILY PEAK FLOW FORECASTS IN CFS

LOCATION                   FLOOD     FCST   FORECAST FLOWS
                            FLOW     DATE      90%    75%    50%    25%    10%
--------------------------------------------------------------------------------
GREEN - JENSEN, NR         24100 2024-04-17  15000  17000  19000  22000  24000
GREEN - GREEN RIVER, UT    37000 2024-04-17  17500  20000  23000  27000  31000
EAGLE - GYPSUM, BLO         6000 2024-04-17   2200   2500   3100   3700   4600
COLORADO - DOTSERO, NR     17000 2024-04-17   5500   6500   7500   9000  11500
ROARING FORK - GLENWOOD S  13000 2024-04-17   3300   3700   4300   4900   6500
COLORADO - CAMEO, NR       26000 2024-04-17  10000  12000  13500  16000  21000
GUNNISON - GRAND JUNCTION  20524 2024-04-17   7000   8000   8000   8000  13000
COLORADO - CO-UT STATE LI  46000 2024-04-17  15000  18000  20000  23000  35000
COLORADO - CISCO, NR       55000 2024-04-17  16000  19500  22000  25000  37000
SAN JUAN - BLUFF, NR       36000 2024-04-17   3000   3300   3700   4200   4600
COLORADO - CATARACT CANYO   -999 2024-04-17  32000  38000  44000  51000  67000


DAILY ESP MEAN DAILY PEAK FLOW FORECASTS IN CFS

LOCATION                    FLOOD  FORECAST FLOWS
                             FLOW     90%    75%    50%    25%    10%
----------------------------------------------------------------------
BIG BRUSH CK - RED FLEET      -99     130    140    170    220    260
WHITEROCKS - WHITEROCKS,     4374     320    360    460    590    700
ASHLEY CK - VERNAL, NR        -99     360    390    440    560    730
YAMPA - STEAMBOAT SPRINGS    5922    2900   2900   3200   3400   4000
ELK - MILNER, NR             5535    3400   3600   3800   4400   5000
ELKHEAD CK - LONG GULCH,     2754     890   1050   1150   1200   1450
WILLIAMS FORK - MOUTH, AT     -99    1300   1500   1600   1750   2000
YAMPA - MAYBELL, NR         22799    9000  10000  10500  11500  13000
LITTLE SNAKE - LILY, NR     18522    3300   3500   3900   4200   5500
YAMPA - DEERLODGE PARK      20744   12000  13500  14500  16000  17500
WHITE - MEEKER, NR           8940    2050   2150   2300   2600   3200
WHITE - WATSON, NR           9568    2000   2150   2350   2600   3200
SLATER FORK - SLATER, NR      -99     580    630    750    810   1000
LITTLE SNAKE - SLATER, NR    5867    1700   1800   1950   2100   2450
FISH CK - UPPER STN, STEA     -99     450    490    520    680    830
SAN JUAN - PAGOSA SPRINGS    4864    1250   1450   1550   1700   2450
ANIMAS - DURANGO            10347    2350   2500   2900   3400   3600
LA PLATA - HESPERUS           680     130    150    170    210    250
PIEDRA - ARBOLES, NR          -99    1100   1250   1400   1700   2350
ANIMAS - SILVERTON, BLO       -99     940    970   1150   1300   1500
VALLECITO CK - BAYFIELD,      -99     540    580    640    740    880
CRYSTAL - REDSTONE, NR, A    3149    1100   1200   1300   1450   1700
CROSS CK - MINTURN, NR        -99     290    320    370    420    490
GORE CK - VAIL, RED SANDS     -99     580    730    810   1000   1200
PINEY - STATE BRIDGE, NR    10369     420    470    530    610    700
DOLORES - RICO, BLO          1667     470    530    620    730    780
DOLORES - DOLORES            6719    1450   1550   1800   2050   2450
SAN MIGUEL - PLACERVILLE,     -99     590    640    810    900   1100
LOST CANYON CK - DOLORES,     666     140    140    140    170    330
EAST - ALMONT                3119    1400   1450   1550   1850   2200
NF GUNNISON - SOMERSET, N   10845    1750   1950   2150   2400   3100
SURFACE CK - CEDAREDGE       1168      55     65     85    120    170
TAYLOR - TAYLOR PARK        30068     430    460    520    610    670
OHIO CK - MOUTH, ABV          -99     330    350    400    450    510
DALLAS CK - RIDGWAY, NR       903      40     50     65     95    110
UNCOMPAHGRE - RIDGWAY, NR    1999     490    550    640    740    920
LAKE FORK - GATEVIEW          -99     820    910   1050   1250   1450
COW CK - RIDGWAY RESERVOI     -99     230    250    300    380    540
ANTHRACITE CK - MOUTH, AB     -99    1300   1500   1600   1900   2500
SNAKE - MONTEZUMA, NR        2195     280    300    370    400    470
TENMILE CK - FRISCO, N TE    2004     500    540    620    700    840
STRAIGHT CK - LASKEY GULC     298      60     70     85     95    110
TOMICHI CK - SARGENTS         -99     310    330    360    420    590
COCHETOPA CK - ROCK CK, B     -99      65     80    100    140    190

CBRFC/Moser


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