Extended Streamflow Guidance
Issued by NWS

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FGUS65 KSTR 121545
ESGCO

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


                      SPRING FLOOD POTENTIAL
             FOR THE COLORADO RIVER BASIN WITHIN COLORADO

                         MARCH 12, 2025


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)
  -------                     --------    -------------
Green-La Barge                 Bankfull        25
Yampa-Steamboat Springs        Bankfull        10
Yampa-Maybell                  Bankfull        10
Elk-Milner                     Flood           10
Yampa-Maybell                  Bankfull        10
Yampa-Deerlodge                Bankfull        25
Green-Jensen                   Bankfull        10
Eagle-Gypsum                   Bankfull        25
Colorado-Cameo                 Bankfull        10
Colorado-CO-UT Stateline       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-February) (% Average)
Green River                100%
Duchesne                    80%
Yampa/White                100%
Upper CO Mainstem           95%
Gunnison                    90%
Dolores/San Miguel          80%
San Juan                    70%

Snow Water Equivalent: March 10 (% Median)
Green River                100%
Duchesne                    90%
Yampa/White                100%
Upper CO Mainstem          105%
Gunnison                    90%
Dolores/San Miguel          65%
San Juan                    60%

April-July Water Supply Volumes: March 1 (% Average)
Green River                 65-85%
Duchesne                    45-80%
Yampa/White                 75-100%
Upper CO Mainstem           80-115%
Gunnison                    45-95%
Dolores/San Miguel          50-80%
San Juan                    30-75%

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 2025-03-01  11000  12500  14000  16500  21000
GREEN - GREEN RIVER, UT    37000 2025-03-01  12000  14000  16000  20000  26000
EAGLE - GYPSUM, BLO         6000 2025-03-01   2400   2900   3400   4100   5300
COLORADO - DOTSERO, NR     17000 2025-03-01   4900   6500   7500   9000  12500
ROARING FORK - GLENWOOD S  13000 2025-03-01   2900   3600   4200   4700   6000
COLORADO - CAMEO, NR       26000 2025-03-01   9000  11500  13500  16000  22000
GUNNISON - GRAND JUNCTION  20524 2025-03-01   7000   7500   8000   9000  11000
COLORADO - CO-UT STATE LI  46000 2025-03-01  12000  17000  20000  24000  33000
COLORADO - CISCO, NR       55000 2025-03-01  13500  18500  22000  26000  35000
SAN JUAN - BLUFF, NR       36000 2025-03-01   2700   3100   3800   4300   4800
COLORADO - CATARACT CANYO   -999 2025-03-01  24000  31000  37000  45000  60000


DAILY ESP MEAN DAILY PEAK FLOW FORECASTS IN CFS

LOCATION                    FLOOD  FORECAST FLOWS
                             FLOW     90%    75%    50%    25%    10%
----------------------------------------------------------------------
FISH CK - UPPER STN, STEA     -99     470    530    710    790    900
YAMPA - STEAMBOAT SPRINGS    5922    2350   2800   3000   3500   4400
ELK - MILNER, NR             5535    2900   3100   3600   4200   5500
ELKHEAD CK - LONG GULCH,     2759     880   1050   1100   1250   1350
WILLIAMS FORK - MOUTH, AT     -99     960   1250   1450   1600   2100
YAMPA - MAYBELL, NR         22799    7500   8500   9500  10500  14000
LITTLE SNAKE - SLATER, NR    5796    1200   1400   1650   2000   2800
SLATER FORK - SLATER, NR      -99     450    570    630    760    970
LITTLE SNAKE - LILY, NR     18450    2500   2700   3300   4000   5500
YAMPA - DEERLODGE PARK      20313   10000  11000  13000  14500  18500
WHITE - MEEKER, NR           8949    1750   1950   2150   2600   3100
WHITE - WATSON, NR           9372    1650   1950   2150   2600   3200
BIG BRUSH CK - RED FLEET      -99     140    170    210    270    310
ASHLEY CK - VERNAL, NR        -99     330    400    570    710    880
WHITEROCKS - WHITEROCKS,     4363     220    260    370    480    630
SNAKE - MONTEZUMA, NR        2195     310    340    380    450    540
TENMILE CK - FRISCO, N TE    2005     580    620    710    770    900
STRAIGHT CK - LASKEY GULC     299      75     80     95    110    140
PINEY - STATE BRIDGE, NR    10369     430    500    580    660    850
CROSS CK - MINTURN, NR        -99     310    350    370    440    520
GORE CK - VAIL, RED SANDS     -99     770    940   1050   1200   1600
CRYSTAL - REDSTONE, NR, A    2931    1150   1300   1400   1550   1850
TAYLOR - TAYLOR PARK        31893     390    450    520    620    690
EAST - ALMONT                3119    1300   1450   1600   1950   2350
OHIO CK - MOUTH, ABV          -99     300    320    360    460    540
TOMICHI CK - SARGENTS         -99     260    310    350    430    530
LAKE FORK - GATEVIEW          -99    1050   1150   1300   1550   1800
COCHETOPA CK - ROCK CK, B     -99      80     90    130    150    200
ANTHRACITE CK - MOUTH, AB     -99    1350   1650   1800   2300   3000
NF GUNNISON - SOMERSET, N    7478    1700   2250   2400   2900   3700
SURFACE CK - CEDAREDGE       1177      50     75     95    130    190
DALLAS CK - RIDGWAY, NR      1039      60     70     90    110    140
UNCOMPAHGRE - RIDGWAY, NR    1996     610    690    740    900   1050
COW CK - RIDGWAY RESERVOI     -99     310    340    370    540    750
DOLORES - RICO, BLO          1563     490    590    680    780    900
LOST CANYON CK - DOLORES,     666      25     40     75    110    150
DOLORES - DOLORES            7337    1300   1700   2050   2200   2500
SAN MIGUEL - PLACERVILLE,     -99     750    860    970   1100   1300
SAN JUAN - PAGOSA SPRINGS    4864    1100   1250   1500   1750   2400
PIEDRA - ARBOLES, NR          -99     870    990   1150   1350   1800
VALLECITO CK - BAYFIELD,      -99     540    630    710    810   1050
ANIMAS - SILVERTON, BLO       -99    1050   1250   1400   1600   1800
ANIMAS - DURANGO            10337    2450   2600   3200   3600   4000
LA PLATA - HESPERUS           685     100    120    150    170    200

CBRFC/Moser