Peakflow Report

Northwest River Forecast Center Peak Flow Forecasts Ensemble Date: 2026-03-30 Forecast Period: March 30 to July 1
Sites in NWRFC Area:
Location	Flood Stage	Flood Flow	90% Flow	50% Flow	10% Flow	90% Stage	50% Stage	10% Stage

CEDAR - CHESTER MORSE LAKE			512	940	2384
TEANAWAY - BELOW FORKS			920	1235	1691	12.63	12.94	13.32
BAKER - UPPER BAKER LAKE			5055	9501	17628
SKAGIT - ROSS RESERVOIR			8796	10609	13673
COWLITZ - MOSSYROCK RESERVOIR			7568	10298	20337
GREEN - HOWARD HANSON DAM			1672	2253	3979
WHITE - AT MUD MOUNTAIN DAM		9000	2999	4208	5519
NISQUALLY - ALDER RESERVOIR			1921	3581	6976
SF COQUILLE - AT MYRTLE POINT	33.00	21398	4010	4136	8013	12.45	12.69	19.57
BULLY CREEK - BULLY CREEK DAM			33	33	846
SILVIES - NEAR BURNS	12.00	2565	337	337	340	3.53	3.53	3.54
DONNER UND BLITZEN - NR FRENCHGLEN	6.00	2141	196	293	621	2.65	2.95	3.72
NASELLE - NEAR NASELLE	15.00	7180	400	700	1444	5.72	6.42	7.61
WILLAPA - NEAR WILLAPA	21.00	11383	674	1151	2341	5.57	6.90	9.70
CHEHALIS - NEAR DOTY	318.00	12747	514	1147	2800	307.81	308.96	311.09
NEWAUKUM - NEAR CHEHALIS	202.50	5011	477	1078	2376	194.57	196.02	198.62
CHEHALIS - NEAR CENTRALIA	168.50	23709	1399	3371	7797	154.93	157.83	161.58
SKOOKUMCHUCK - NEAR BUCODA	211.50	2803	813	813	1375	206.35	206.35	208.07
SKOOKUMCHUCK - AT CENTRALIA	189.00	7672	868	896	1648	179.49	179.58	181.66
CHEHALIS - NEAR GRAND MOUND	141.00	19410	2513	4838	10286	132.25	134.01	137.24
CHEHALIS - AT PORTER	48.00	23088	4571	6113	12395	36.60	38.02	43.52
SATSOP - NEAR SATSOP	38.00	25801	2547	2971	7062	29.93	30.27	32.70
WYNOOCHEE - WYNOOCHEE DAM			574	1216	3170
CALAWAH - NEAR FORKS			1119	2575	7644	4.76	6.57	10.36
ELWHA - AT MCDONALD BRIDGE NEAR PORT ANGELES	20.00	18837	2061	2820	4290	11.27	11.85	12.80
DUNGENESS - NEAR SEQUIM	7.00	4279	676	985	1516	3.92	4.39	4.99
NF SKOKOMISH - BELOW STAIRCASE RAPIDS NEAR HOODSPORT			734	1332	3392	4.27	4.86	6.29
SF SKOKOMISH - NEAR UNION			839	1148	5059	1.19	1.46	3.74
DESCHUTES - NEAR RAINIER	11.00	5216	296	492	1179	4.33	4.88	6.28
NISQUALLY - NEAR NATIONAL	9.52	8000	1166	1969	4458	5.77	6.49	8.01
MINERAL CREEK - NEAR MINERAL			647	985	1941	10.11	10.57	11.53
PUYALLUP - NEAR ORTING	10.93	10000	1286	2306	3388	7.60	8.37	8.93
CARBON - NEAR FAIRFAX	13.50	7524	706	1388	2579	7.53	8.87	10.19
SOUTH PRAIRIE - AT SOUTH PRAIRIE	29.64	4000	455	719	1686	25.63	26.20	27.94
WHITE - AT R STREET	115.92	7500	4685	4685	5989	114.74	114.74	115.53
ISSAQUAH CREEK - NEAR MOUTH	10.69	2000	181	295	467	4.92	5.32	5.85
SKYKOMISH - NEAR GOLD BAR	15.00	32013	8332	13480	24740	9.23	10.91	13.67
MF SNOQUALMIE - NEAR TANNER			3087	5446	12812	5.58	7.18	10.55
NF SNOQUALMIE - NEAR SNOQUALMIE FALLS			1192	2246	3723	4.78	6.02	7.25
SF SNOQUALMIE - NEAR GARCIA			570	1107	1929	11.43	12.25	13.20
SNOQUALMIE - NEAR SNOQUALMIE	13.54	20000	5080	9659	19801	7.33	9.71	13.48
PILCHUCK - NEAR SNOHOMISH	18.00	6723	855	1346	2009	11.95	12.66	13.43
NF STILLAGUAMISH - NEAR ARLINGTON	13.00	22675	2507	4405	7670	4.16	4.99	6.76
STILLAGUAMISH - NEAR ARLINGTON	14.00	35100	7186	10596	18410	5.31	6.57	9.16
SAUK - NEAR SAUK			8469	12595	24264	6.58	7.58	9.51
SKAGIT - NEAR MT VERNON	28.00	65451	24138	31973	53499	17.70	20.05	25.43
SAMISH - NEAR BURLINGTON	11.24	3000	345	610	958	6.20	7.17	8.17
NF NOOKSACK - NEAR GLACIER			1929	2394	3165	4.68	5.23	6.06
MF NOOKSACK - NEAR DEMING			933	1500	2829	4.33	4.80	5.57
SF NOOKSACK - AT SAXON BRIDGE	8.00	12504	1679	2445	4903	2.54	3.08	4.48
NOOKSACK - AT CEDARVILLE	146.50	33121	5358	8949	12945	140.24	141.52	142.68
KOOTENAI - LIBBY DAM INFLOW			50927	61499	81791
FISHER - NEAR LIBBY	7.50	4389	1396	1508	2537	5.31	5.43	6.32
YAAK - NEAR TROY	8.00	6976	2941	3650	4990	6.30	6.73	7.32
MOYIE - AT EASTPORT	9.00	7024	3104	3743	4981	6.80	7.22	7.95
CLARK FORK - AT DEER LODGE	6.00		280	386	889	2.91	3.10	3.77
CLARK FORK - NR DRUMMOND	8.00	5036	1427	2177	4569	4.39	5.27	7.62
ROCK CREEK - NEAR CLINTON	9.00	6946	2427	2851	3750	7.26	7.47	7.86
BLACKFOOT - NEAR BONNER	10.00	15449	5415	7036	9245	5.93	6.74	7.72
CLARK FORK - ABOVE MISSOULA	7.50	12035	9598	11964	15888	6.57	7.47	8.86
BITTERROOT - NEAR DARBY	7.50	8122	3827	4821	5996	5.52	6.06	6.57
BITTERROOT - NEAR MISSOULA	11.00	16639	10245	12488	15437	8.58	9.46	10.56
CLARK FORK - BELOW MISSOULA	11.00	48282	19393	24004	29324	6.10	6.93	7.82
ST. REGIS - NEAR ST. REGIS	8.00	6151	1768	2399	3026	4.74	5.35	5.89
CLARK FORK - AT ST REGIS	19.00	60626	25051	30421	36429	12.75	13.89	15.05
NF FLATHEAD - NEAR COLUMBIA FALLS	13.00	35864	9657	12081	16181	6.46	7.26	8.48
MF FLATHEAD - NEAR WEST GLACIER	10.00	25750	11185	13679	16512	5.98	6.72	7.51
SF FLATHEAD - HUNGRY HORSE DAM			16569	19685	25774
FLATHEAD - AT COLUMBIA FALLS	13.00	41701	31298	35684	45961	11.17	11.97	13.70
STILLWATER - NEAR LAWRENCE PARK	7.50	2570	1155	1368	1683	5.33	5.67	6.16
WHITEFISH - NEAR KALISPELL	5.40	1502	551	735	1019	3.22	3.67	4.35
SWAN - NEAR BIGFORK	6.50	7054	3572	4716	6301	4.77	5.36	6.14
CLARK FORK - NEAR PLAINS	16.00	95805	54857	65358	75399	11.54	12.78	13.89
THOMPSON - NEAR THOMPSON FALLS	7.00	3668	1441	1930	2656	4.73	5.28	6.04
PROSPECT CREEK - AT THOMPSON FALLS	7.50	3242	956	1196	1737	4.09	4.52	5.38
PEND OREILLE - LAKE PEND OREILLE NR HOPE	2063.50					2062.20	2062.20	2063.00
PRIEST - NEAR PRIEST RIVER			4123	4396	5084	4.83	5.04	5.54
PEND OREILLE - ALBENI FALLS DAM		95000	65688	77386	91998
KETTLE - NEAR FERRY	18.50	14605	5397	8131	11016	14.18	15.61	16.91
KETTLE - AT LAURIER			8939	13767	18856	8.68	10.49	12.12
COLVILLE - AT KETTLE FALLS			347	428	1128	6.43	6.67	7.79
NF COEUR D ALENE - NEAR PRICHARD			2288	2737	4483	4.05	4.40	5.51
NF COEUR D ALENE - AT ENAVILLE	72.00	26813	5668	6850	9990	63.19	63.99	65.84
COEUR D ALENE - AT CATALDO	43.00	18298	7200	9084	13117	38.60	39.90	41.52
ST JOE - AT CALDER	13.00	19055	8081	10263	13479	10.08	10.84	11.83
ST MARIES - NEAR SANTA			1604	1604	3444	7.08	7.08	8.64
COEUR D ALENE - COEUR D ALENE LAKE	2133.00					2128.30	2128.30	2128.70
SPOKANE - AT SPOKANE	27.00	30670	18871	18871	20689	24.26	24.26	24.72
HANGMAN CREEK - AT SPOKANE	11.00	7957	1043	1043	3053	4.47	4.47	6.96
LITTLE SPOKANE - AT DARTFORD	6.50	2275	301	301	632	3.19	3.19	4.18
SIMILKAMEEN - NEAR NIGHTHAWK	14.00	24980	11702	14196	20342	9.87	10.78	12.73
OKANOGAN - NEAR TONASKET	15.00	18277	11844	15189	21067	12.15	13.70	16.10
OKANOGAN - AT MALOTT			11832	15182	21042	9.91	11.62	14.50
METHOW - AT WINTHROP			6332	8690	11386	15.15	16.36	17.60
METHOW - NEAR PATEROS	10.00	18282	7725	10774	14513	6.79	7.89	9.02
STEHEKIN - AT STEHEKIN	24.00	8725	4733	6713	9410	22.06	23.04	24.32
CHELAN - LAKE CHELAN DAM			8052	11733	17100
ENTIAT - NEAR ARDENVOIR	7.50	4109	1714	2151	2758	4.95	5.50	6.18
WENATCHEE - AT PESHASTIN	13.00	24180	9298	12058	15710	7.58	8.73	10.13
COLUMBIA - BLO PRIEST RAPIDS DAM	32.00	404000	198647	235115	282408	21.36	23.70	26.29
YAKIMA - NEAR HORLICK	36.00	13115	3882	5710	6712	31.77	32.91	33.45
NACHES - NEAR NACHES	17.80	6905	4267	5169	7382	16.43	16.91	18.04
YAKIMA - NEAR PARKER	10.00	19092	6342	8055	11132	6.00	6.72	7.80
YAKIMA - AT KIONA	13.00	16872	10475	10475	10885	9.43	9.43	9.65
SNAKE - AB JACKSON L AT FLAGG R	10.00	13099	3628	4584	6054	5.82	6.39	7.17
SNAKE - JACKSON LAKE AT DAM			5111	6299	8695
PACIFIC CREEK - AT MORAN	8.50	4743	1377	1733	2238	6.64	6.93	7.27
BUFFALO FK - AB LAVA CR NR MORAN	8.50	7000	2472	3333	3918	5.02	6.26	6.73
GROS VENTRE - AT ZENITH			1189	1513	2270	19.77	19.99	20.38
GREYS - AB RES NR ALPINE			1506	1823	2252	3.02	3.31	3.68
SALT - ABV PALISADES RES NR ETNA	5.50	3470	1153	1473	2002	3.00	3.42	4.01
SNAKE - NEAR HEISE	8.00	19882	15403	15963	17034	6.88	7.03	7.30
FALL RIVER - NEAR CHESTER	6.50	6668	1694	2266	3900	3.69	4.14	5.17
HENRYS FORK - AT ST. ANTHONY	7.00	9071	2835	4023	6303	4.47	5.01	5.91
TETON - AB S. LEIGH CR NR DRIGGS	4.20	1894	726	981	1549	2.40	2.82	3.70
TETON - NEAR ST. ANTHONY	6.00	4737	1743	2356	3471	3.90	4.44	5.25
HENRYS FORK - AT REXBURG	9.50	7297	3341	4697	7544	6.58	7.82	9.60
SNAKE - NEAR SHELLEY	12.50	29054	10509	12376	16312	8.30	8.78	9.75
SNAKE - NEAR BLACKFOOT	11.00	24233	7913	9699	13522	6.10	6.86	8.28
PORTNEUF - AT TOPAZ	4.00	498	196	202	289	3.02	3.05	3.38
PORTNEUF - AT POCATELLO	8.50	833	423	423	437	6.09	6.09	6.18
SALMON FALLS CREEK - NR SAN JACINTO	10.00	1210	176	368	620	6.20	7.08	8.06
BIG LOST - AT HOWELL RANCH NEAR CHILLY	4.00	2189	1007	1581	2404	2.85	3.47	4.16
BIG LOST - MACKAY RESERVOIR NEAR MACKAY			777	1405	2010
BIG WOOD - AT HAILEY	6.00	3416	1581	2024	2764	4.16	4.66	5.41
BIG WOOD - MAGIC DAM			1338	1806	2654
BRUNEAU - NEAR HOT SPRINGS	9.50	3265	375	437	774	5.53	5.64	6.22
OWYHEE - NEAR MTN CITY	8.00	1220	103	222	417	4.51	5.06	5.76
OWYHEE - OWYHEE DAM		3000	2147	2147	7144
BOISE - NR TWIN SPRINGS			6414	6414	6427	10.77	10.77	10.78
SF BOISE - NR FEATHERVILLE	7.20	7931	1860	2420	3577	3.87	4.31	5.08
SF BOISE - ANDERSON RANCH DAM			2330	2643	4008
MORES CREEK - NR ARROWROCK DAM	8.80	4845	1056	1056	1591	4.72	4.72	5.52
MALHEUR - NEAR DREWSEY			398	398	547	4.42	4.42	4.93
MALHEUR - NEAR VALE	19.50	3892	642	815	1190	13.24	13.75	14.71
SF PAYETTE - AT LOWMAN	7.50	6787	1914	2384	3472	4.92	5.24	5.90
MF PAYETTE - NEAR CROUCH	11.80	3318	1332	1332	2521	8.54	8.54	10.73
PAYETTE - NEAR EMMETT	10.50	15924	5159	7624	13037	5.54	6.95	9.38
WEISER - NEAR CAMBRIDGE	12.00	9278	2006	2006	3238	6.43	6.43	7.69
WEISER - NEAR WEISER	9.50	8663	2876	2876	4488	6.90	6.90	7.79
EAGLE CREEK - ABOVE SKULL CK			587	790	1362	1.85	2.13	2.80
SNAKE - BROWNLEE DAM			18080	22778	35446
IMNAHA - AT IMNAHA	5.50	3431	1096	1747	2730	3.61	4.28	5.05
SALMON - AT SALMON	7.50	11783	5276	6471	8955	4.88	5.44	6.47
LEMHI - NEAR LEMHI	6.50	1490	277	431	852	4.21	4.63	5.41
MF SALMON - MIDDLE FORK LODGE			5196	6792	9349	4.78	5.52	6.55
LITTLE SALMON - AT RIGGINS	10.00	7853	2277	3002	4709	5.92	6.62	8.01
SALMON - AT WHITEBIRD	32.00	97533	33014	41187	53212	21.83	23.48	25.65
GRANDE RONDE - NEAR PERRY	6.60	5440	414	1457	3484	2.32	3.71	5.33
MALHEUR - AGENCY VALLEY DAM			548	548	548
GRANDE RONDE - TROY	10.00	19242	5305	8933	18105	6.79	7.97	9.81
SNAKE - NEAR ANATONE	20.00	150000	52818	63361	92361	9.78	11.05	14.21
SELWAY - NEAR LOWELL	14.00	43181	15285	19074	23570	8.65	9.51	10.49
LOCHSA - NEAR LOWELL			10708	13705	17589	7.30	8.30	9.48
SNAKE - LOWER GRANITE DAM			93539	113485	163623
SF CLEARWATER - AT STITES	8.00	9846	3378	4759	7384	5.38	6.04	7.12
CLEARWATER - AT OROFINO	17.00	75187	31779	39603	51760	11.08	12.35	14.11
NF CLEARWATER - DWORSHAK DAM			17352	23710	33320
POTLATCH - BELOW LITTLE POTLATCH CR NR SPALDING			2017	2017	2952	8.96	8.96	9.97
CLEARWATER - AT SPALDING	18.00	107596	42479	56366	75423	11.18	12.91	14.98
PALOUSE - NEAR POTLATCH	15.00	3880	932	932	1335	9.43	9.43	10.43
SF PALOUSE - AT PULLMAN	7.00	2487	550	550	1005	3.72	3.72	4.87
PALOUSE - AT HOOPER			4510	4510	8193	10.57	10.57	12.75
MILL CREEK - NR WALLA WALLA			285	357	1124	14.38	14.53	15.78
WALLA WALLA - NEAR TOUCHET	13.00	7676	2102	2102	3524	7.71	7.71	9.47
UMATILLA - NEAR GIBBON	7.00	2611	608	699	1405	4.63	4.79	5.78
UMATILLA - AT PENDLETON	12.30	9550	1227	1543	4230	6.35	6.65	8.92
JOHN DAY - NEAR JOHN DAY	8.00	2596	396	396	664	4.55	4.55	5.07
NF JOHN DAY - AT MONUMENT	14.00	19143	2469	2566	6644	5.95	6.03	8.39
JOHN DAY - AT SERVICE CK	11.50	15961	3275	3275	7608	5.75	5.75	8.27
DESCHUTES - AT MOODY NR BIGGS	8.00	31801	6118	6133	6954	3.43	3.43	3.64
KLICKITAT - NEAR PITT	9.00	8900	2735	3382	4212	5.88	6.28	6.73
HOOD - NEAR TUCKER BRIDGE	13.00	13504	1357	1790	3290	5.04	5.60	7.09
WHITE SALMON - NEAR UNDERWOOD			1838	1993	2759	4.80	4.92	5.55
SANDY - NEAR MARMOT			2286	3548	5280	691.54	692.28	693.08
SANDY - SANDY	19.30	40323	3451	5076	9615	10.55	11.32	12.89
MF WILLAMETTE - HILLS CREEK DAM			1498	2341	4435
FALL CREEK - FALL CREEK RESERVOIR			1285	2274	4060
COAST FORK WILLAMETTE - COTTAGE GROVE DAM			559	607	1161
ROW - DORENA DAM			1716	2756	5612
MCKENZIE - BELOW TRAIL BRIDGE DAM			1163	1250	1800	6.91	7.01	7.59
SF MCKENZIE - COUGAR DAM			1056	1753	3034
BLUE - BLUE RESERVOIR			1295	1937	4511
MOHAWK - NEAR SPRINGFIELD	15.00	6363	1319	1581	2753	5.64	6.37	9.12
LONG TOM - FERN RIDGE DAM			901	1083	2164
MARYS - NEAR PHILOMATH	20.00	4304	354	752	1419	6.12	8.82	12.61
LITTLE N SANTIAM - NEAR MEHAMA			1452	2197	5483	5.28	5.95	7.84
THOMAS CREEK - NEAR SCIO	18.00	14297	1029	1364	3200	7.30	7.86	10.58
LUCKIAMUTE - NEAR SUVER	27.00	6488	919	1267	2227	9.27	11.08	15.20
S YAMHILL - NEAR WILLAMINA			710	1076	1703	3.77	4.44	5.00
S YAMHILL - AT MCMINNVILLE	50.00	17632	1256	2346	3830	16.24	20.12	24.40
MOLALLA - NEAR CANBY	23.00	27547	1849	2650	5057	11.72	12.42	14.05
PUDDING - AT AURORA	22.00	6076	1198	1766	3251	10.44	12.16	16.02
CLACKAMAS - THREE LYNX			2795	3695	5519	3.06	3.85	5.22
CLACKAMAS - AT ESTACADA	20.00	24793	3632	5160	8404	13.37	14.18	15.45
CLACKAMAS - NEAR OREGON CITY	39.00	40050	4732	6803	10776	26.64	27.81	29.64
JOHNSON CREEK - AT SYCAMORE	11.00	1250	59	178	362	2.52	3.98	5.62
COWLITZ - AT PACKWOOD	10.50	24411	3350	4690	10162	3.32	4.04	6.22
COWLITZ - AT RANDLE	18.00	17568	5101	6706	14076	8.79	10.03	15.50
CISPUS - NEAR RANDLE			1858	2441	4245	15.53	16.15	17.12
COWLITZ - NEAR KOSMOS			7578	10075	19682	69.86	71.32	75.49
TILTON - NEAR CINEBAR			1264	1731	2993	4.66	5.12	6.17
TOUTLE - AT TOWER ROAD NEAR SILVER LAKE	137.00	44162	2934	4764	8307	122.58	123.59	125.57
NEHALEM - FOSS	15.00	23364	2093	4106	7609	5.42	7.07	9.25
WILSON - NEAR TILLAMOOK	12.00	14054	1094	2241	4092	5.18	6.02	7.01
TRASK - TILLAMOOK	16.50	12678	989	1903	3275	7.71	8.89	10.31
NESTUCCA - NEAR BEAVER	18.00	20010	1032	2072	3731	5.99	7.07	8.43
SILETZ - AT SILETZ	16.00	18873	1398	2382	4851	4.78	5.88	7.99
ALSEA - NEAR TIDEWATER	18.00	20106	1457	2172	3127	4.39	5.34	6.42
SIUSLAW - NEAR MAPLETON	18.00	22123	2566	3219	4838	6.48	7.04	8.32
S UMPQUA - AT TILLER	18.00	29761	1411	2713	5277	4.01	5.55	7.73
DEER CREEK - NEAR ROSEBURG	10.00	2100	49	151	924	3.00	4.00	7.00
STEAMBOAT CREEK - NEAR GLIDE			1274	2665	5409	3.09	4.85	7.54
N UMPQUA - AT WINCHESTER	26.00	82464	5114	7781	12492	4.93	6.10	7.76
ELK CREEK - NEAR DRAIN	16.00	7253	404	519	1001	3.81	4.37	6.06
SF COQUILLE - AT POWERS			1464	1713	3470	4.20	4.58	6.51
NF COQUILLE - NEAR MYRTLE POINT	35.00	11958	1781	1781	3042	12.92	12.92	18.55
BIG BUTTE CREEK - NEAR MCLEOD			179	305	638	3.41	3.85	4.77
ELK CREEK - NEAR TRAIL			237	374	974	4.91	5.40	6.75
BEAR CREEK - AT MEDFORD	10.00	5265	176	203	580	3.29	3.37	4.39
ILLINOIS - AT KERBY	35.00	49076	2815	2949	6982	8.35	8.55	13.12
CHETCO - NEAR BROOKINGS			3520	4824	21003	3.67	4.56	12.09

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