Water Supply Forecast Listing

Header for Water Supply Period Rankings Page

Summary for Water Year (2025)

Ensemble Date: 2025-06-30 Issued Date: 2025-06-30

#	ID	Servicing WFO	Forecast Period	Name	90% Exceedence KAF	50% Exceedence KAF	% Normal	10% Exceedence KAF	30 Year Normal
1	ABBM8	MSO	APR-SEP	CLARK FORK - ABOVE BLACKFOOT	400	407	60	420	680
2	ABOM8	MSO	APR-SEP	CLARK FORK - ABOVE MISSOULA	842	852	54	868	1571
3	ALFW1	OTX	APR-SEP	PEND OREILLE - ALBENI FALLS DAM	9205	9259	69	9429	13347
4	AMFI1	PIH	APR-SEP	SNAKE - AT AMERICAN FALLS DAM	1226	1262	48	1338	2624
5	ANTI1	PIH	APR-SEP	HENRYS FORK - AT ST. ANTHONY	526	538	68	556	794
6	ARAI1	BOI	APR-SEP	SF BOISE - ANDERSON RANCH DAM	434	436	88	441	495
7	ARDQ2	OTX	APR-SEP	COLUMBIA - ARROW LAKES (HUGH KEENLEYSIDE DAM)	19427	19776	82	20976	24059
8	BELM8	MSO	APR-SEP	CLARK FORK - BELOW MISSOULA	1651	1665	58	1694	2893
9	BEUO3	BOI	APR-SEP	NF MALHEUR - AT BEULAH	74.88	75.08	127	75.33	59.29
10	BFEI1	OTX	APR-SEP	KOOTENAI - AT BONNERS FERRY	5678	5770	68	5889	8463
11	BIRQ2	CAN	APR-SEP	COLUMBIA - AT BIRCHBANK	32546	33012	78	34537	42578
12	BITM8	MSO	APR-SEP	BITTERROOT - NEAR MISSOULA	870	875	68	883	1289
13	BONM8	MSO	APR-SEP	BLACKFOOT - NEAR BONNER	442	445	50	448	891
14	BONO3	PQR	APR-SEP	COLUMBIA - BONNEVILLE DAM	71489	72125	76	73916	95202
15	BRNI1	BOI	APR-SEP	SNAKE - BROWNLEE DAM	5539	5600	88	5745	6398
16	BUMW1	PDT	APR-SEP	BUMPING - BELOW BUMPING DAM	92.04	92.24	74	93.84	125
17	BUSO3	BOI	APR-SEP	SILVIES - NEAR BURNS	154	155	216	155	71.47
18	CABI1	OTX	APR-SEP	CLARK FORK - CABINET GORGE DAM	7477	7509	65	7641	11639
19	CASW1	PQR	APR-SEP	COWLITZ - AT CASTLE ROCK	1622	1637	65	1680	2504
20	CFMM8	MSO	APR-SEP	FLATHEAD - AT COLUMBIA FALLS	3957	3962	70	4019	5634
21	CHDW1	OTX	APR-SEP	CHELAN - LAKE CHELAN DAM	728	731	64	736	1139
22	CHEI1	PIH	APR-SEP	FALL RIVER - NEAR CHESTER	246	249	66	256	377
23	CIBW1	OTX	APR-SEP	COLUMBIA - AT INTL BOUNDARY	42666	43221	76	44708	56951
24	CLDI1	OTX	APR-SEP	ST JOE - AT CALDER	768	769	68	772	1138
25	CLEW1	PDT	APR-SEP	CLE ELUM - NEAR ROSLYN	281	281	67	289	419
26	COEI1	OTX	APR-SEP	COEUR D ALENE - COEUR D ALENE LAKE	1533	1534	61	1538	2504
27	CONW1	SEW	APR-SEP	SKAGIT - NEAR CONCRETE	4213	4290	72	4508	5955
28	CSCI1	BOI	APR-SEP	NF PAYETTE - CASCADE DAM	486	492	101	504	487
29	DARM8	MSO	APR-SEP	BITTERROOT - NEAR DARBY	340	344	66	351	519
30	DCDQ2	CAN	APR-SEP	DUNCAN - DUNCAN DAM	1779	1856	83	1916	2224
31	DONO3	BOI	APR-SEP	DONNER UND BLITZEN - NR FRENCHGLEN	80.13	80.23	128	80.98	62.51
32	DRBI1	BOI	APR-SEP	DEADWOOD - BELOW DEADWOOD RES	131	131	97	132	135
33	DRSW1	SEW	APR-SEP	DUNGENESS - NEAR SEQUIM	116	118	82	122	145
34	DWRI1	MSO	APR-SEP	NF CLEARWATER - DWORSHAK DAM	1899	1903	73	1919	2620
35	EASI1	OTX	APR-SEP	MOYIE - AT EASTPORT	256	257	65	259	395
36	EGCO3	BOI	APR-SEP	EAGLE CREEK - ABOVE SKULL CK	191	191	110	191	174
37	EMMI1	BOI	APR-SEP	PAYETTE - NEAR EMMETT	1339	1343	101	1350	1325
38	ENVI1	OTX	APR-SEP	NF COEUR D ALENE - AT ENAVILLE	480	481	65	481	743
39	ESTO3	PQR	APR-SEP	CLACKAMAS - AT ESTACADA	516	523	71	534	733
40	FCFM8	MSO	APR-SEP	NF FLATHEAD - NEAR COLUMBIA FALLS	1240	1240	71	1247	1750
41	GCDW1	OTX	APR-SEP	COLUMBIA - GRAND COULEE DAM	46388	47006	76	48478	61483
42	GIBO3	PDT	APR-SEP	UMATILLA - NEAR GIBBON	55.11	55.18	67	55.33	82.43
43	GREW4	RIW	APR-SEP	GREYS - AB RES NR ALPINE	327	328	88	329	371
44	HALI1	PIH	APR-SEP	BIG WOOD - AT HAILEY	180	180	70	182	257
45	HCDI1	PDT	APR-SEP	SNAKE - AT HELLS CANYON DAM	5753	5814	86	5959	6725
46	HEII1	PIH	APR-SEP	SNAKE - NEAR HEISE	2975	2990	78	3027	3849
47	HHWM8	MSO	APR-SEP	SF FLATHEAD - HUNGRY HORSE DAM	1473	1478	71	1506	2088
48	HLKW1	PDT	APR-SEP	YAKIMA - NEAR HORLICK	690	691	72	702	962
49	HOTI1	BOI	APR-SEP	BRUNEAU - NEAR HOT SPRINGS	117	118	64	119	183
50	HRSI1	BOI	APR-SEP	PAYETTE - NEAR HORSESHOE BEND	1642	1651	103	1670	1597
51	HWRI1	PIH	APR-SEP	BIG LOST - AT HOWELL RANCH NEAR CHILLY	116	117	68	118	172
52	IMNO3	PDT	APR-SEP	IMNAHA - AT IMNAHA	246	246	89	247	277
53	JDAO3	PDT	APR-SEP	COLUMBIA - JOHN DAY DAM	70426	71073	77	72860	92354
54	JLKW4	RIW	APR-SEP	SNAKE - JACKSON LAKE AT DAM	614	617	73	624	849
55	KACW1	PDT	APR-SEP	KACHESS - NEAR EASTON	73.83	74.08	65	76.48	114
56	KEEW1	PDT	APR-SEP	YAKIMA - NEAR MARTIN	89.29	89.96	70	94.07	129
57	KERM8	MSO	APR-SEP	FLATHEAD - SELI’Š KSANKA QLISPE’ DAM	4569	4580	70	4660	6577
58	KIOW1	PDT	APR-SEP	YAKIMA - AT KIONA	707	709	62	713	1149
59	LAUW1	OTX	APR-SEP	KETTLE - AT LAURIER	1673	1689	86	1740	1954
60	LEOI1	OTX	APR-SEP	KOOTENAI - AT LEONIA	5237	5329	68	5447	7803
61	LGDW1	OTX	APR-SEP	SNAKE - LOWER GRANITE DAM	17972	18045	81	18250	22232
62	LGNO3	PDT	APR-SEP	GRANDE RONDE - NEAR PERRY	83.43	83.89	48	85.26	176
63	LLKW1	OTX	APR-SEP	SPOKANE - AT LONGLAKE	1807	1808	62	1816	2901
64	LSTO3	PDT	APR-SEP	LOSTINE - NR LOSTINE	83.5	84.12	73	88.56	116
65	LUCI1	BOI	APR-SEP	BOISE - LUCKY PEAK DAM	1214	1218	92	1226	1329
66	LYDM8	MSO	APR-SEP	KOOTENAI - LIBBY DAM	4252	4343	68	4453	6429
67	MACI1	PIH	APR-SEP	BIG LOST - MACKAY RESERVOIR NEAR MACKAY	85.85	86.46	64	87.81	136
68	MADO3	BOI	APR-SEP	MALHEUR - NEAR DREWSEY	115	116	178	117	64.84
69	MAGI1	PIH	APR-SEP	BIG WOOD - MAGIC DAM	125	127	53	131	240
70	MCDQ2	CAN	APR-SEP	COLUMBIA - MICA DAM	9469	9831	80	10316	12296
71	MCDW1	PDT	APR-SEP	COLUMBIA - MCNARY DAM	68536	69176	75	70963	92790
72	MEHO3	PQR	APR-SEP	NORTH SANTIAM - AT MEHAMA	517	525	61	546	855
73	MEWW1	PQR	APR-SEP	LEWIS - MERWIN DAM	749	759	70	801	1082
74	MODO3	PDT	APR-SEP	DESCHUTES - AT MOODY NR BIGGS	1803	1803	95	1804	1902
75	MONO3	PDT	APR-SEP	NF JOHN DAY - AT MONUMENT	507	509	90	511	564
76	MYDW1	PQR	APR-SEP	COWLITZ - MAYFIELD RESERVOIR	1257	1268	68	1299	1864
77	NACW1	PDT	APR-SEP	NACHES - NEAR NACHES	611	616	76	624	807
78	NITW1	OTX	APR-SEP	SIMILKAMEEN - NEAR NIGHTHAWK	625	632	46	642	1366
79	ORFI1	MSO	APR-SEP	CLEARWATER - AT OROFINO	3579	3591	78	3612	4632
80	OWYO3	BOI	APR-SEP	OWYHEE - OWYHEE DAM	231	234	70	237	336
81	PALI1	PIH	APR-SEP	SNAKE - NEAR IRWIN	2949	2963	83	3000	3577
82	PARI1	BOI	APR-SEP	BOISE - NEAR PARMA	397	404	69	409	584
83	PARW1	PDT	APR-SEP	YAKIMA - NEAR PARKER	1551	1554	82	1562	1899
84	PATW1	OTX	APR-SEP	METHOW - NEAR PATEROS	697	698	72	700	965
85	PDTO3	PDT	APR-SEP	UMATILLA - AT PENDLETON	86.32	86.49	55	86.93	158
86	PESW1	OTX	APR-SEP	WENATCHEE - AT PESHASTIN	1131	1132	76	1140	1496
87	PLNM8	MSO	APR-SEP	CLARK FORK - NEAR PLAINS	7103	7132	67	7253	10574
88	PRDW1	OTX	APR-SEP	COLUMBIA - BLO PRIEST RAPIDS DAM	50649	51309	75	52767	68162
89	PRTI1	OTX	APR-SEP	PRIEST - NEAR PRIEST RIVER	685	695	82	708	843
90	QBYQ2	CAN	APR-SEP	KOOTENAI - KOOTENAY L AT QUEENS BAY	11274	11408	72	11642	15842
91	REVQ2	CAN	APR-SEP	COLUMBIA - REVELSTOKE DAM	13704	14035	81	14847	17242
92	REXI1	PIH	APR-SEP	HENRYS FORK - AT REXBURG	1060	1075	63	1100	1710
93	RIMW1	PDT	APR-SEP	TIETON - AT TIETON DAM	182	186	83	191	225
94	RIRI1	PIH	APR-SEP	WILLOW CREEK - NEAR RIRIE	34.62	35.07	58	36.02	60.33
95	RISW1	OTX	APR-SEP	COLUMBIA - BLO ROCK ISLAND DAM	50217	50876	75	52335	67524
96	RYGO3	MFR	APR-SEP	ROGUE - AT RAYGOLD	833	837	101	847	831
97	SALW4	RIW	APR-SEP	SALT - ABV PALISADES RES NR ETNA	303	308	84	318	368
98	SERO3	PDT	APR-SEP	JOHN DAY - AT SERVICE CK	772	775	97	779	798
99	SFLN2	PIH	APR-SEP	SALMON FALLS CREEK - NR SAN JACINTO	37.11	37.59	55	38.65	67.85
100	SHYI1	PIH	APR-SEP	SNAKE - NEAR SHELLEY	3612	3646	74	3710	4905
101	SKHI1	BOI	APR-SEP	SNAKE - AT KING HILL	2534	2607	76	2711	3412
102	SLCQ2	CAN	APR-SEP	SLOCAN - NEAR CRESCENT VALLEY	1402	1429	74	1597	1933
103	SLMO3	PQR	APR-SEP	WILLAMETTE - AT SALEM	3227	3265	69	3400	4754
104	SMKQ2	CAN	APR-SEP	SIMILKAMEEN - NEAR HEDLEY	461	471	47	480	1004
105	SMNI1	MSO	APR-SEP	SALMON - AT SALMON	752	758	82	772	929
106	SPDI1	OTX	APR-SEP	CLEARWATER - AT SPALDING	5584	5602	75	5632	7481
107	SPOW1	OTX	APR-SEP	SPOKANE - AT SPOKANE	1600	1602	62	1608	2587
108	SRGM8	MSO	APR-SEP	CLARK FORK - AT ST REGIS	2221	2236	59	2267	3771
109	STHW1	OTX	APR-SEP	STEHEKIN - AT STEHEKIN	544	547	67	552	814
110	SWAI1	BOI	APR-SEP	SNAKE - BELOW SWAN FALLS	2415	2480	76	2575	3258
111	TDAO3	PDT	APR-SEP	COLUMBIA - THE DALLES DAM	71000	71647	76	73434	94166
112	TEAI1	PIH	APR-SEP	TETON - NEAR ST. ANTHONY	367	372	83	382	447
113	TONW1	OTX	APR-SEP	OKANOGAN - NEAR TONASKET	852	863	50	890	1720
114	TOPI1	PIH	APR-SEP	PORTNEUF - AT TOPAZ	59.33	60.06	83	62.03	72.20
115	TRYO3	PDT	APR-SEP	GRANDE RONDE - TROY	984	987	74	992	1331
116	UNYO3	PDT	APR-SEP	BURNT - Unity Dam & Burnt RVR NR Hereford	37.92	38.26	123	38.98	31.00
117	VIDO3	PQR	APR-SEP	MCKENZIE - NEAR VIDA	949	956	80	971	1195
118	WDHN2	LKN	APR-SEP	OWYHEE - WILDHORSE DAM	11.95	12.15	76	12.5	15.92
119	WEII1	BOI	APR-SEP	SNAKE - AT WEISER	5034	5096	86	5238	5956
120	WGCM8	MSO	APR-SEP	MF FLATHEAD - NEAR WEST GLACIER	1255	1255	74	1270	1697
121	WHBI1	MSO	APR-SEP	SALMON - AT WHITEBIRD	5245	5256	85	5275	6158
122	WODI1	PIH	APR-SEP	LITTLE WOOD - NEAR CAREY	34.04	34.48	45	35.6	76.59
123	WSRI1	BOI	APR-SEP	WEISER - NEAR WEISER	381	382	98	383	389
124	WTLO3	PQR	APR-SEP	SOUTH SANTIAM - AT WATERLOO	308	311	53	327	590

Link to main Northwest River Forecast Center (NWRFC) web site

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