March 1, 2022 Spring and Summer Streamflow Forecasts
Upper Missouri Basin
The high elevation snow pack in the Upper Missouri Basin as of March 1
was near to above average. The snow pack in the St. Mary Basin was 107 percent,
and the Milk River Basin was 79 percent.
February precipitation across the Upper Missouri Basin ranged from above to below
average. Basin precipitation summaries for the Missouri Basin include: Milk St. Mary,
115 percent; Milk Canada, 106 percent; Lower Milk, 69 percent; above Toston,
66 percent; Toston to Ft. Peck, 118 percent.
February 2022 Upper Missouri Mean Precip Oct-Feb WY2022 Upper Missouri Mean Precip
Stream flow in the Upper Missouri Basin is forecast to be
below average during the upcoming Spring and Summer.
The St. Mary River is forecast to have 67 percent of average
April-September flows. Runoff is expected to range around
65 percent of average for the Missouri Basin above Fort Peck,
Montana.
Upper Missouri March 1, 2022 Spring and Summer Streamflow Forecasts
Of the four major irrigation reservoirs in Montana; Lima
Reservoir had 69 percent average storage, Clark Canyon was
holding 74 percent of average water, Gibson Reservoir had 49
percent of average stored water, and Fresno Reservoir had
62 percent of average stored water.
Yellowstone Basin
The high elevation snow pack in the Yellowstone Basin was near to below average
on March 1. The snow pack in the Upper Yellowstone Basin was 80 percent
of average. The snow packs in the Wind, Bighorn, and Shoshone Basins were 92,
87, and 83 percent of average, respectively. The snow packs in the Tongue
and Powder basins were 93 and 83 percent of average, respectively.
Precipitation during February ranged from above to below average. The
upper Yellowstone River Basin received 93 percent of average precipitation
while the Lower Yellowstone River Basin reported 124 percent of average. The
Bighorn Basin received 89 percent of average precipitation while the
Wind River Basin received 87 percent of average. The Little Bighorn -
Upper Tongue Basin received 123 percent of average and the Powder River
had 102 percent of average precipitation.
February 2022 Yellowstone Mean Precip Oct-Feb WY2022 Yellowstone Mean Precip
Forecast stream flow in the Yellowstone Basin is below average
for the upcoming Spring and Summer. Stream flow for the
Yellowstone River above Sidney, Montana is forecast to be about
68 percent of average. Flow in the Tongue Basin is expected to be
60 percent of average. Flows in the Powder River are expected
to be about 47 percent of average.
Monthend storage at Boysen Reservoir was 106 percent of average.
Stored water in Buffalo Bill Reservoir was 87 percent of average.
Monthend storage was 96 percent of average at Bighorn Reservoir.
Yellowstone March 1, 2022 Spring and Summer Streamflow Forecasts
Platte Basin
The high elevation snow pack in the Upper North Platte Basin was
91 percent of average on March 1. The snow pack in the North Platte
Basin below Seminoe Reservoir was 97 percent of average. The snow
pack in the South Platte Basin was 101 percent of average.
Precipitation during February in the Upper North Platte Basin was 48
percent of average. In the Lower North Platte Basin, precipitation
was 71 percent of average. The North Platte Plains below Guernsy
Reservoir had 103 percent. The South Platte Mountains had 171
percent whereas the Plains had 137 percent of average February
precipitation.
February 2022 Platte Mean Precip Oct-Feb WY2022 Platte Mean Precip
Stream flow in the Platte Basin is forecast to be below
average during the upcoming Spring and Summer. Runoff
for streams above Seminoe Reservoir are expected to be
about 98 percent of average. Streams in the South Platte
Basin above South Platte, Colorado can expect 80 percent
of average flow. For the remainder of the South Platte
basin, flows are expected near 84 percent.
Stored water in the South Platte Basin was 101 percent of average
on March 1.
North Platte Streamflow Fcst South Platte Streamflow Fcst
FGUS63 KKRF 021430
ESPKRF
WATER SUPPLY FORECAST
NWS MISSOURI BASIN RIVER FORECAST CENTER
PLEASANT HILL MISSOURI
0754 CST WEDNESDAY MARCH 02, 2022
DATA CURRENT AS OF: MARCH 01, 2022
MISSOURI/YELLOWSTONE/PLATTE RIVER BASIN FORECASTS
50% % 10% 90% AVG
FORECAST POINT PERIOD (KAF) AVG (KAF) (KAF) (KAF)
--------------------------------------------------------------------
Boysen Resvr Inflow Apr-Sep 530 74 1051 214 720
SBDW4
Boysen Resvr Inflow Apr-Sep 969 109 1585 581 890
SBDW4N
Bighorn R at Kane Apr-Sep 872 89 1575 561 985
LVEW4
Bighorn R at Kane Apr-Sep 1554 108 2382 889 1440
LVEW4N
Greybull R at Meeteetse Apr-Sep 142 72 222 63 196
MEEW4
Greybull R at Meeteetse Apr-Sep 142 69 222 63 205
MEEW4N
Buffalo Bill Resvr Inflow Apr-Sep 393 48 555 260 815
CDYW4
Buffalo Bill Resvr Inflow Apr-Sep 462 51 634 332 910
CDYW4N
St. Mary R nr Babb Apr-Sep 380 83 437 338 460
SMYM8
St. Mary R nr Babb Apr-Sep 357 67 415 314 535
SMYM8N
St. Mary R at Intl Boundary Apr-Sep 300 77 389 248 390
SMBM8
St. Mary R at Intl Boundary Apr-Sep 414 63 490 366 660
SMBM8N
Milk R nr Western Crossing Apr-Sep 12 11 29 7 113
PDBM8
Milk R nr Western Crossing Apr-Sep 19 45 42 10 41
PDBM8N
Milk R nr Eastern Crossing Apr-Sep 146 68 208 135 215
ERNM8
Milk R nr Eastern Crossing Apr-Sep 35 31 132 18 112
ERNM8N
North Platte R nr Northgate Apr-Sep 263 107 423 158 245
NGTC2
North Platte R nr Northgate Apr-Sep 317 107 476 207 295
NGTC2N
Encampment R nr Encampment Apr-Sep 105 67 169 74 156
ECRW4
Encampment R nr Encampment Apr-Sep 116 70 179 87 166
ECRW4N
Rock Cr nr Arlington Apr-Sep 43 81 57 33 53
KCRW4
Rock Cr nr Arlington Apr-Sep 43 81 57 33 53
KCRW4N
Seminoe Resvr Inflow Apr-Sep 655 86 1040 450 765
SETW4
Seminoe Resvr Inflow Apr-Sep 817 89 1200 615 920
SETW4N
Laramie R nr Woods Landing Apr-Sep 55 51 104 25 108
WODW4
Laramie R nr Woods Landing Apr-Sep 91 64 140 56 142
WODW4N
Little Laramie R nr Filmore Apr-Sep 50 91 75 35 55
SMTW4
Little Laramie R nr Filmore Apr-Sep 52 92 77 37 57
SMTW4N
Antero Resvr Inflow Apr-Sep 11 75 18 5 14
ANRC2
Antero Resvr Inflow Apr-Sep 11 75 18 5 14
ANRC2N
Spinney Mountain Resvr Inflow Apr-Sep 39 68 60 28 57
SPYC2
Spinney Mountain Resvr Inflow Apr-Sep 29 66 53 17 45
SPYC2N
Elevenmile Canyon Resvr Inflow Apr-Sep 37 63 47 31 59
EVNC2
Elevenmile Canyon Resvr Inflow Apr-Sep 33 66 57 18 50
EVNC2N
Cheesman Lk Inflow Apr-Sep 65 65 101 48 100
CHEC2
Cheesman Lk Inflow Apr-Sep 67 72 114 36 93
CHEC2N
S Platte R at S Platte Apr-Sep 314 131 393 291 240
SPTC2
S Platte R at S Platte Apr-Sep 136 66 224 73 205
SPTC2N
Bear Cr at Morrison Apr-Sep 13 50 30 6 26
MRRC2
Bear Cr at Morrison Apr-Sep 13 50 30 6 26
MRRC2N
Clear Cr at Golden Apr-Sep 71 61 111 48 118
GLDC2
Clear Cr at Golden Apr-Sep 82 63 124 56 131
GLDC2N
St. Vrain Cr at Lyons Apr-Sep 65 83 95 46 79
LNSC2
St. Vrain Cr at Lyons Apr-Sep 92 85 146 67 109
LNSC2N
Boulder Cr nr Orodell Apr-Sep 37 78 57 25 47
OROC2
Boulder Cr nr Orodell Apr-Sep 52 101 74 39 52
OROC2N
S Boulder Cr nr Eldorado Sprgs Apr-Sep 29 83 40 18 35
BELC2
S Boulder Cr nr Eldorado Sprgs Apr-Sep 30 74 49 18 40
BELC2N
Cache La Poudre at Canyon Mouth Apr-Sep 197 183 299 113 108
FTDC2
Cache La Poudre at Canyon Mouth Apr-Sep 231 110 341 138 210
FTDC2N
Lima Resvr Inflow Apr-Sep 25 33 43 16 76
LRRM8
Lima Resvr Inflow Apr-Sep 25 32 43 16 79
LRRM8N
Clark Canyon Resvr Inflow Apr-Sep 34 31 46 26 110
CLKM8
Clark Canyon Resvr Inflow Apr-Sep 62 31 101 41 198
CLKM8N
Beaverhead R at Barretts Apr-Sep 111 56 126 103 199
BARM8
Beaverhead R at Barretts Apr-Sep 86 31 130 65 280
BARM8N
Ruby R Resvr Inflow Apr-Sep 60 68 77 47 88
ALRM8
Ruby R Resvr Inflow Apr-Sep 60 62 77 47 97
ALRM8N
Big Hole R nr Melrose Apr-Sep 398 67 647 294 595
MLRM8
Big Hole R nr Melrose Apr-Sep 463 70 714 356 660
MLRM8N
Hebgen Resvr Inflow Apr-Sep 298 64 350 245 465
HBDM8
Hebgen Resvr Inflow Apr-Sep 298 64 350 245 465
HBDM8N
Ennis Resvr Inflow Apr-Sep 438 61 512 369 715
ELMM8
Ennis Resvr Inflow Apr-Sep 464 64 545 376 730
ELMM8N
Gallatin R nr Gateway Apr-Sep 250 53 319 217 475
GLGM8
Gallatin R nr Gateway Apr-Sep 250 53 319 217 475
GLGM8N
Gallatin R at Logan Apr-Sep 240 48 348 172 505
LOGM8
Gallatin R at Logan Apr-Sep 365 56 481 301 650
LOGM8N
Missouri R at Toston Apr-Sep 1072 52 1657 781 2060
TOSM8
Missouri R at Toston Apr-Sep 1691 60 2244 1328 2830
TOSM8N
Missouri R at Fort Benton Apr-Sep 1716 56 1885 1585 3060
FBNM8
Missouri R at Fort Benton Apr-Sep 2571 63 3267 2022 4100
FBNM8N
Missouri R nr Virgelle Apr-Sep 1855 54 2133 1689 3420
VRGM8
Missouri R nr Virgelle Apr-Sep 3085 68 3819 2371 4560
VRGM8N
Missouri R nr Landusky Apr-Sep 1939 53 2275 1733 3680
LDKM8
Missouri R nr Landusky Apr-Sep 3238 66 3997 2464 4890
LDKM8N
Missouri R below Fort Peck Dam Apr-Sep 2004 52 2365 1746 3840
FPKM8
Missouri R below Fort Peck Dam Apr-Sep 3294 64 4229 2498 5180
FPKM8N
Gibson Resvr Inflow Apr-Sep 315 70 450 231 450
AGSM8
Gibson Resvr Inflow Apr-Sep 315 70 450 231 450
AGSM8N
Marias R nr Shelby Apr-Sep 295 68 494 214 435
SHLM8
Marias R nr Shelby Apr-Sep 354 72 551 264 490
SHLM8N
Musselshell R at Harlowton Apr-Sep 15 19 30 13 80
HLWM8
Musselshell R at Harlowton Apr-Sep 21 22 37 18 95
HLWM8N
Yellowstone R at Yellowstone Lk Apr-Sep 539 66 682 431 815
YLOW4
Yellowstone R at Yellowstone Lk Apr-Sep 709 84 879 578 840
YLOW4N
Yellowstone R at Corwin Sprgs Apr-Sep 1244 63 1514 1011 1980
CORM8
Yellowstone R at Corwin Sprgs Apr-Sep 1503 73 1800 1220 2070
CORM8N
Yellowstone R at Livingston Apr-Sep 1389 61 1736 1147 2290
LIVM8
Yellowstone R at Livingston Apr-Sep 1736 71 2081 1422 2440
LIVM8N
Yellowstone R at Billings Apr-Sep 1926 47 2569 1438 4070
BILM8
Yellowstone R at Billings Apr-Sep 2910 61 3544 2348 4790
BILM8N
Yellowstone R at Miles City Apr-Sep 3056 52 4039 2506 5850
MILM8
Yellowstone R at Miles City Apr-Sep 5220 68 6598 4343 7690
MILM8N
Yellowstone R at Sidney Apr-Sep 2934 51 4023 2300 5710
SIDM8
Yellowstone R at Sidney Apr-Sep 5394 67 6913 4414 8060
SIDM8N
Boulder R at Big Timber Apr-Sep 159 48 219 115 335
BTMM8
Boulder R at Big Timber Apr-Sep 202 54 260 156 375
BTMM8N
Stillwater R nr Absarokee Apr-Sep 310 57 399 246 540
SRAM8
Stillwater R nr Absarokee Apr-Sep 368 62 450 304 595
SRAM8N
Clks Fk Yellowstone R nr Belfry Apr-Sep 335 54 425 244 620
BFYM8
Clks Fk Yellowstone R nr Belfry Apr-Sep 408 59 495 317 695
BFYM8N
Bighorn R nr St. Xavier Apr-Sep 992 69 1583 773 1430
STXM8
Bighorn R nr St. Xavier Apr-Sep 2132 87 3054 1380 2460
STXM8N
Little Bighorn R nr Hardin Apr-Sep 77 61 147 45 127
HRDM8
Little Bighorn R nr Hardin Apr-Sep 77 61 147 45 127
HRDM8N
Tongue R nr Dayton Apr-Sep 58 61 75 38 96
DAYW4
Tongue R nr Dayton Apr-Sep 64 63 81 43 101
DAYW4N
Tongue R nr Decker Apr-Sep 96 41 154 45 235
DSLM8
Tongue R nr Decker Apr-Sep 142 59 201 84 240
DSLM8N
Tongue R Resvr Inflow Apr-Sep 97 41 162 45 235
DKRM8
Tongue R Resvr Inflow Apr-Sep 144 59 209 84 245
DKRM8N
Powder R at Moorhead Apr-Sep 93 41 211 36 225
MHDM8
Powder R at Moorhead Apr-Sep 129 48 267 63 270
MHDM8N
Powder R nr Locate Apr-Sep 99 38 265 40 260
LOCM8
Powder R nr Locate Apr-Sep 134 44 306 66 305
LOCM8N
Locations with an `N` suffix indicate natural flows excluding
stream augmentations.
KAF: Thousands of Acre-feet
%AVG: Current 50%/AVG
AVG: Average(50%) seasonal runoff voulme as simulated by the river
forecast model considering acontinuous simulation of the basin
response to historic climate data (observed precipitation and
temperatures) over the period of 1981-2010.
The 50%, 10% and 90% columns indicate the probability that the
actual volume will exceed the forecast for the valid time perion
for more information, please visit: www.weather.gov/mbrfc/water
$$
