Extended Streamflow Prediction
Issued by NWS Missouri Basin, Pleasant Hill

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10
000
FGUS63 KKRF 161820
ESPKRF

MISSOURI  BASIN RIVER  FORECAST  CENTER
WATER  SUPPLY  STATEMENT
ISSUED IN COOPERATION WITH NATURAL RESOURCES CONSERVATION SERVICE
ISSUED:  APRIL 16, 2014


UPPER MISSOURI BASIN

THE HIGH ELEVATION SNOW PACK IN THE UPPER MISSOURI BASIN AS OF
APRIL 1 WAS ABOVE AVERAGE.  THE SNOW PACK ABOVE TOSTON,  MONTANA
WAS 136 PERCENT OF AVERAGE.  THE SNOW PACK BETWEEN TOSTON AND FORT
PECK, MONTANA WAS 157 PERCENT.  THE SNOW PACK IN THE ST MARY AND
MILK RIVER BASINS WAS 132 PERCENT.

MARCH PRECIPITATION ACROSS THE UPPER MISSOURI BASIN WAS ABOVE
AVERAGE.  BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN
INCLUDE: MILK ST. MARY,  133 PERCENT; MILK CANADA, 107 PERCENT;
LOWER MILK, 105 PERCENT; ABOVE TOSTON, 144 PERCENT; TOSTON TO
FT. PECK, 147 PERCENT.

STREAM FLOW IN THE UPPER MISSOURI BASIN IS FORECAST TO BE ABOVE
AVERAGE DURING THE UPCOMING SPRING AND SUMMER.  THE ST. MARY
RIVER IS FORECAST TO HAVE 112 PERCENT OF AVERAGE APRIL-SEPTEMBER
FLOWS.  RUNOFF IS EXPECTED TO RANGE AROUND 137 PERCENT OF AVERAGE
FOR THE MISSOURI BASIN ABOVE FORT PECK, MONTANA.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA:  LIMA RESERVOIR
HAD 74 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 76 PERCENT
OF AVERAGE WATER, GIBSON RESERVOIR HAD 51 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 131 PERCENT OF AVERAGE STORED WATER.
THE  MAJOR  HYDROELECTRIC  RESERVOIRS  IN  MONTANA (CANYON  FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE NEAR AVERAGE RANGE; 97 AND 100
PERCENT OF AVERAGE WATER, RESPECTIVELY.

YELLOWSTONE BASIN

THE HIGH ELEVATION SNOW PACK IN THE YELLOWSTONE BASIN WAS ABOVE
AVERAGE ON APRIL 1.  THE SNOW PACK IN THE UPPER YELLOWSTONE
BASIN WAS 157 PERCENT OF AVERAGE OVERALL.  THE SNOW PACKS IN THE WIND,
BIGHORN, AND SHOSHONE BASINS WERE 121, 153, AND 150 PERCENT OF AVERAGE,
RESPECTIVELY.  THE SNOW PACKS IN THE TONGUE AND POWDER BASINS WERE
150 AND 163 PERCENT OF AVERAGE, RESPECTIVELY.

PRECIPITATION DURING MARCH WAS ABOVE AVERAGE.  THE UPPER
YELLOWSTONE RIVER BASIN RECEIVED 125 PERCENT OF AVERAGE PRECIPITATION
WHILE THE LOWER YELLOWSTONE BASIN REPORTED 104 PERCENT OF AVERAGE.
THE BIGHORN BASIN RECEIVED 132 PERCENT OF AVERAGE PRECIPITATION WHILE
THE WIND RIVER BASIN RECEIVED 121 PERCENT OF AVERAGE. THE LITTLE
BIGHORN - UPPER TONGUE BASIN RECEIVED 156 PERCENT OF AVERAGE
AND THE POWDER RIVER HAD 96 PERCENT OF AVERAGE PRECIPITATION.

FORECAST STREAM FLOW IN THE YELLOWSTONE BASIN IS ABOVE AVERAGE
FOR THE UPCOMING SPRING AND SUMMER.  STREAM FLOW FOR THE WIND-BIGHORN
BASIN ABOVE ST. XAVIER, MONTANA IS FORECAST TO BE ABOUT 170 PERCENT OF
AVERAGE.  FLOW IN THE TONGUE BASIN IS EXPECTED TO BE ABOUT 140 PERCENT
OF AVERAGE.  FLOWS IN THE POWDER RIVER ARE EXPECTED TO BE ABOUT 190
PERCENT OF AVERAGE.

MONTHEND STORAGE AT BOYSEN RESERVOIR WAS 116 PERCENT OF AVERAGE.
STORED WATER IN BUFFALO BILL RESERVOIR WAS 129 PERCENT OF AVERAGE.
MONTHEND STORAGE WAS 102 PERCENT OF AVERAGE AT BIGHORN RESERVOIR.

PLATTE BASIN

THE HIGH ELEVATION  SNOW PACK IN THE UPPER NORTH PLATTE BASIN WAS
124 PERCENT OF AVERAGE ON APRIL 1.  THE SNOW PACK IN THE NORTH
PLATTE  BASIN BELOW SEMINOE RESERVOIR WAS 131 PERCENT OF AVERAGE.
THE SNOW PACK IN THE SOUTH PLATTE BASIN WAS 136 PERCENT OF AVERAGE.

MARCH PRECIPITATION ACROSS THE PLATTE BASIN WAS NEAR TO ABOVE AVERAGE.
PRECIPITATION DURING MARCH IN THE NORTH PLATTE BASIN ABOVE SEMINOE
RESERVOIR WAS 117 PERCENT OF AVERAGE. IN THE NORTH PLATTE BASIN BETWEEN
SEMINOE RESERVOIR AND GUERNSY RESERVOIR PRECIPITATION WAS 136 PERCENT
OF AVERAGE. THE NORTH PLATTE BASIN BELOW GUERNSY RESERVOIR HAD 140 PERCENT
OF AVERAGE PRECIPITATION.  THE HIGH ELEVATIONS OF THE SOUTH PLATTE
BASIN HAD 85 PERCENT OF AVERAGE PRECIPITATION WHEREAS THE PLAINS HAD
63 PERCENT OF AVERAGE MARCH PRECIPITATION.

STREAM FLOW IN THE PLATTE BASIN IS FORECAST TO BE ABOVE AVERAGE
DURING THE UPCOMING SPRING AND SUMMER. RUNOFF FOR STREAMS
ABOVE SEMINOE RESERVOIR ARE EXPECTED TO BE NEAR 140 PERCENT
OF AVERAGE.  STREAM FLOWS FOR THE NORTH PLATTE BELOW SEMINOE
RESERVOIR ARE FORECAST TO BE NEAR 150 PERCENT OF AVERAGE. STREAMS
IN THE SOUTH PLATTE BASIN ABOVE SOUTH PLATTE, COLORADO CAN EXPECT
NEAR 120 PERCENT OF AVERAGE FLOW. FOR THE REMAINDER OF THE SOUTH
PLATTE BASIN FLOWS ARE EXPECTED NEAR 125 PERCENT OF AVERAGE.

STORED WATER IN THE SOUTH PLATTE BASIN WAS 103 PERCENT OF AVERAGE
ON APRIL 1.  STORED WATER IN THE NORTH PLATTE BASIN WAS 75
PERCENT OF AVERAGE


WATER SUPPLY FORECAST
NWS MISSOURI BASIN RIVER FORECAST CENTER PLEASANT HILL MO
1042 AM CDT TUE APR 8 2014

DISSEMINATED WITH PERMISSION OF THE
US NATURAL RESOURCES CONSERVATION SERVICE

DATA CURRENT AS OF: APRIL 04 2014
BASED ON APRIL 01 2014 FORECAST VALUES


FINAL MISSOURI/YELLOWSTONE/PLATTE RIVER BASIN FORECASTS
                                           50% % OF  MAX   MIN 30-YR
FORECAST POINT                    PERIOD  (KAF) AVG (KAF) (KAF) AVG
--------------                    ------  --------- ----- ----------
ST. MARY R NR BABB  2)            APR-JUL   410 111   475   345  370
                                  APR-SEP   475 112   550   400  425
LIMA RESERVOIR INFLOW  2)         APR-JUL    66  80    83    49   82
                                  APR-SEP    70  79    90    50   89
CLARK CANYON RESERVOIR INFLOW  2) APR-JUL    98  97   165    31  101
                                  APR-SEP   119  99   190    48  120
BEAVERHEAD R AT BARRETTS  2)      APR-JUL   131 102   235    27  129
                                  APR-SEP   159 102   285    35  156
BIG HOLE R NR MELROSE             APR-JUL   825 160   980   670  515
                                  APR-SEP   890 159  1060   715  560
RUBY R RESERVOIR INFLOW  2)       APR-JUL    77 100    99    54   77
                                  APR-SEP    91 100   117    65   91
HEBGEN RESERVOIR INFLOW  2)       APR-JUL   410 111   460   360  370
                                  APR-SEP   515 110   575   455  470
ENNIS RESERVOIR INFLOW  2)        APR-JUL   665 106   780   545  625
                                  APR-SEP   810 105   950   675  775
GALLATIN R NR GATEWAY             APR-JUL   495 124   580   405  400
                                  APR-SEP   570 121   675   470  470
GALLATIN R AT LOGAN               APR-JUL   590 134   745   430  440
                                  APR-SEP   665 132   850   485  505
MISSOURI R AT TOSTON  2)          APR-JUL  2470 138  3040  1900 1790
                                  APR-SEP  2810 136  3490  2120 2070
MISSOURI R AT FORT BENTON  2)     APR-JUL  3670 141  4530  2810 2610
                                  APR-SEP  4260 137  5320  3210 3110
MISSOURI R NR VIRGELLE  2)        APR-JUL  4190 140  5190  3200 3000
                                  APR-SEP  4800 136  6010  3580 3520
MISSOURI R NR LANDUSKY  2)        APR-JUL  4540 144  5550  3540 3160
                                  APR-SEP  5190 140  6440  3950 3720
MISSOURI R BL FT PECK DAM  2)     APR-JUL  4860 150  6000  3720 3240
                                  APR-SEP  5430 147  6890  3960 3700
LAKE SAKAKAWEA INFLOW  2)         APR-JUL 13000 156 15800 10200 8310
                                  APR-SEP 14600 155 18200 11100 9400
SHEEP CK NR WHITE SULPHUR SPRINGS APR-JUL    21 135    27  16.0 15.5
                                  APR-SEP    25 136    31  18.1 18.4
GIBSON RESERVOIR INFLOW  2)       APR-JUL   530 134   615   450  395
                                  APR-SEP   580 132   670   490  440
MARIAS R NR SHELBY  2)            APR-JUL   500 145   665   340  345
                                  APR-SEP   520 144   700   340  360
NF MUSSELSHELL R NR DELPINE       APR-JUL   6.1 179   8.0   4.2  3.4
                                  APR-SEP   7.2 180   9.4   5.0  4.0
SF MUSSELSHELL R AB MARTINSDALE   APR-JUL    60 171    87    33   35
                                  APR-SEP    65 171    95    35   38
MUSSELSHELL R AT HARLOWTON  2)    APR-JUL   142 249   193    91   57
                                  APR-SEP   146 247   200    91   59
MILK R AT WESTERN CROSSING        APR-SEP    31 119    56  17.6   26
MILK R AT EASTERN CROSSING        APR-SEP    60 118   124    36   51
YELLOWSTONE R AT YELLOWSTONE LAKE APR-JUL   715 124   810   620  575
                                  APR-SEP   945 123  1070   820  770
YELLOWSTONE R AT CORWIN SPRINGS   APR-JUL  2130 134  2410  1850 1590
                                  APR-SEP  2500 133  2850  2150 1880
YELLOWSTONE R AT LIVINGSTON       APR-JUL  2430 135  2790  2070 1800
                                  APR-SEP  2850 133  3280  2420 2140
YELLOWSTONE R AT BILLINGS         APR-JUL  4670 145  5510  3830 3230
                                  APR-SEP  5360 144  6370  4340 3730
YELLOWSTONE R AT MILES CITY  2)   APR-JUL  7320 153  8760  5890 4780
                                  APR-SEP  8340 153 10200  6520 5450
YELLOWSTONE R NR SIDNEY  2)       APR-JUL  7710 160  9390  6030 4830
                                  APR-SEP  8720 161 10900  6590 5430
BOULDER R AT BIG TIMBER           APR-JUL   390 139   455   320  280
                                  APR-SEP   425 142   505   350  300
STILLWATER R NR ABSAROKEE  2)     APR-JUL   590 133   685   495  445
                                  APR-SEP   695 134   810   580  520
CLARKS FK YELLOWSTONE R NR BELFRY APR-JUL   725 142   810   645  510
                                  APR-SEP   805 146   900   710  550
BOYSEN RESERVOIR INFLOW  2)       APR-JUL   945 155  1280   610  610
                                  APR-SEP  1040 156  1410   670  665
BIGHORN R AT KANE  2)             APR-JUL  1430 170  1940   910  840
                                  APR-SEP  1570 173  2140   995  905
BIGHORN R NR ST. XAVIER  2)       APR-JUL  2310 167  2920  1700 1380
                                  APR-SEP  2510 172  3210  1810 1460
GREYBULL R NR MEETEETSE           APR-JUL   195 149   240   151  131
                                  APR-SEP   265 150   320   210  177
SHELL CK NR SHELL                 APR-JUL    71 129    86    57   55
                                  APR-SEP    83 126    99    67   66
BUFFALO BILL RESERVOIR INFLOW  2) APR-JUL  1000 148  1130   865  675
                                  APR-SEP  1090 146  1250   935  745
LITTLE BIGHORN R NR HARDIN        APR-JUL   152 155   193   110   98
                                  APR-SEP   168 151   215   122  111
TONGUE R NR DAYTON  2)            APR-JUL   120 140   147    92   86
                                  APR-SEP   134 137   164   104   98
TONGUE RIVER RESERVOIR INFLOW  2) APR-JUL   295 153   395   197  193
                                  APR-SEP   330 153   435   225  215
ROCK CK NR BUFFALO                APR-JUL    29 156    37    22 18.6
                                  APR-SEP    34 155    42    27   22
NF POWDER R NR HAZELTON           APR-JUL  16.4 180  18.8  14.0  9.1
                                  APR-SEP  17.5 177    20  14.9  9.9
POWDER R AT MOORHEAD              APR-JUL   345 195   460   230  177
                                  APR-SEP   380 194   500   260  196
POWDER R NR LOCATE                APR-JUL   395 198   535   255  199
                                  APR-SEP   440 200   585   290  220


UPPER NORTH PLATTE RIVER BASIN
                                           50% % OF  MAX   MIN 30-YR
FORECAST POINT                    PERIOD  (KAF) AVG (KAF) (KAF) AVG
--------------                    ------  --------- ----- ----------
NORTH PLATTE R NR NORTHGATE       APR-JUL   350 156   445   255  225
                                  APR-SEP   390 156   495   285  250
ENCAMPMENT R NR ENCAMPMENT        APR-JUL   173 134   210   138  129
                                  APR-SEP   184 133   220   146  138
ROCK CK NR ARLINGTON              APR-JUL    68 139    81    55   49
                                  APR-SEP    72 138    86    58   52
SEMINOE RESERVOIR INFLOW  2)      APR-JUL  1020 143  1380   655  715
                                  APR-SEP  1100 143  1500   705  770


LOWER NORTH PLATTE, SWEETWATER & LARAMIE RIVER BASINS
                                           50% % OF  MAX   MIN 30-YR
FORECAST POINT                    PERIOD  (KAF) AVG (KAF) (KAF) AVG
--------------                    ------  --------- ----- ----------
SWEETWATER R NR ALCOVA            APR-JUL    54  92    82    26   59
                                  APR-SEP    59  92    90    28   64
LA PRELE CK AB LA PRELE RESERVOIR APR-JUL    25 126    38  12.2 19.9
                                  APR-SEP    25 126    38  12.1 19.9
NORTH PLATTE RALCOVA TO ORIN GAIN APR-JUL   126 247   255   7.0   51
                                  APR-SEP    91 455   220  12.0   20
NORTH PLATTE R BL GLENDO RES  2)  APR-JUL  1200 146  1460   940  820
                                  APR-SEP  1250 147  1520   970  850
NORTH PLATTE R BL GUERNSEY RES  2)APR-JUL  1240 151  1570   910  820
                                  APR-SEP  1300 153  1640   960  850
LARAMIE R NR WOODS                APR-JUL   174 151   215   135  115
                                  APR-SEP   190 151   235   146  126
LITTLE LARAMIE R NR FILMORE       APR-JUL    69 135    85    53   51
                                  APR-SEP    75 136    94    56   55


SOUTH PLATTE RIVER BASIN
                                           50% % OF  MAX   MIN 30-YR
FORECAST POINT                    PERIOD  (KAF) AVG (KAF) (KAF) AVG
--------------                    ------  --------- ----- ----------
ANTERO RESERVOIR INFLOW           APR-JUL  17.4 120    23  12.2 14.5
                                  APR-SEP    21 118    28  15.2 17.8
SPINNEY MOUNTAIN RES INFLOW  2)   APR-JUL    60 125   111    33   48
                                  APR-SEP    75 123   146    39   61
ELEVENMILE CANYON RES INFLOW  2)  APR-JUL    62 124   118    33   50
                                  APR-SEP    78 122   159    38   64
CHEESMAN LAKE INFLOW  2)          APR-JUL   126 126   250    64  100
                                  APR-SEP   160 127   325    79  126
SOUTH PLATTE R AT SOUTH PLATTE  2)APR-JUL   225 125   485   104  180
                                  APR-SEP   285 127   620   130  225
BEAR CK AB EVERGREEN              APR-JUL  19.5 119    42   9.0 16.4
                                  APR-SEP    25 119    53  11.8   21
BEAR CK AT MORRISON               APR-JUL    26 118    65  10.3   22
                                  APR-SEP    32 114    80  12.9   28
CLEAR CK AT GOLDEN                APR-JUL   137 130   168   106  105
                                  APR-SEP   166 130   210   124  128
ST. VRAIN CK AT LYONS  2)         APR-JUL   110 125   127    93   88
                                  APR-SEP   130 126   150   110  103
BOULDER CK NR ORODELL  2)         APR-JUL    69 128    80    58   54
                                  APR-SEP    79 125    94    64   63
S BOULDER CK NR ELDORADO SPRNGS 2)APR-JUL    49 126    58    40   39
                                  APR-SEP    53 123    64    42   43
BIG THOMPSON R AT CANYON MOUTH  2)APR-JUL   115 128   137    93   90
                                  APR-SEP   136 127   162   109  107
CACHE LA POUDRE AT CANYON MOUTH 2)APR-JUL   290 129   435   194  225
                                  APR-SEP   310 124   465   205  250

 MAX (10%), 30%, 50%, 70% AND MIN (90%) CHANCE THAT ACTUAL VOLUME
 WILL EXCEED FORECAST.

 AVERAGES ARE FOR THE 1981-2010 PERIOD.

 ALL VOLUMES ARE IN THOUSANDS OF ACRE-FEET.

 FOOTNOTES:
 1) MAX AND MIN ARE 5% AND 95% CHANCE THAT ACTUAL VOLUME WILL EXCEED
    FORECAST
 2) STREAMFLOW IS ADJUSTED FOR UPSTREAM STORAGE
 3) MEDIAN VALUE USED IN PLACE OF AVERAGE
 * MILK RIVER MEDIANS ARE FOR YEARS 1980-2008





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.