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Flow report

Michigan River Levels & Streamflow

As of Sep 15, 2026, Michigan rivers are running at 81% of normal across 125 USGS gauges — the highest is 2,210 cfs on the St. Joseph River At Niles. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Michigan.

USGS gauges
125
State percent normal
81%
Paddle runs
0
Updated
Sep 15
Open the Michigan flow layer on the map Every USGS streamgauge filtered to Michigan.
Open the map →
September
15
2026
Flow briefing

Streamflow levels across Michigan are currently 81% of normal, with the St. Joseph River At Niles reporting the highest discharge in the state at 2,210 cfs and a gauge stage of 5.18 ft.

Meanwhile, the Escanaba River At Cornell is seeing a spike today — up 13% since yesterday and currently running near peak.

Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Michigan's named rivers.

Active weather warnings for Michigan

# Michigan Natural Disaster Report – September 15, 2026

Multiple Beach Hazards Statements are in effect across Michigan through this evening, with dangerous swimming conditions expected statewide. West Michigan counties including Mason, Oceana, Muskegon, Ottawa, Allegan, and Van Buren face high wave action and strong currents through 5-11 PM. Northern Michigan is experiencing more severe conditions, with waves reaching 4-10 feet in Chippewa and Mackinac counties, and 4-8 feet in Emmet, Leelanau, and Charlevoix counties. The Upper Peninsula's Alger and Southern Schoolcraft counties also face life-threatening swimming conditions; specific hazard areas include Pictured Rocks National Lakeshore, Grand Marais Harbor, and Seul Choix Point. Additionally, a Wind Advisory is active in Keweenaw and Northern Houghton counties with gusts up to 45-55 mph expected through 8 PM. Residents should avoid water recreation, stay away from piers and breakwalls, and secure loose outdoor items.

Source: National Weather Service

Michigan at a glance

State-wide streamflow overview

The Michigan flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.

Percent of normal

81%

100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.

Highest discharge

St. Joseph River At Niles 2,210 cfs

Gauge stage 5.18 ft

Biggest 24h spike

Escanaba River At Cornell +13%

Now 269 cfs

Network coverage

Gauges + rivers tracked 125 + 0

USGS gauges feeding 0 named rivers in Michigan.

Where every gauge actually sits

One dot per Michigan streamgauge, placed by its own percent of normal. The state average is a single line through all of it.

State average 81%
0% 50% 100% · normal 150% 200%+
Much below normalunder 50% Below normal50–90% Near normal90–110% Above normal110–150% Much above normalover 150%

Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.

Michigan streamflow, three water years

Statewide percent of normal, every day since Sep 2023. The dotted line is normal.

81% of normal today
-13pts vs this day last year (94%)
261of 366 days below normal, past year
250% 3-year peak · Apr 2026 · above the axis
50% 100% normal 150%
Sep 2023 202420252026 Sep 15, 2026

799 daily readings from 125 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The axis tops out at 175%: 14 readings above that — including the 250% peak in Apr 2026 — are drawn along the top edge, so a few flood days cannot flatten three years of everything else. The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.

Full streamgauge inventory

Michigan USGS streamgauges

Every USGS gauge Snoflo tracks in Michigan. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.

125 gauges
Streamgage Streamflow Gage height Water temp Air temp Elevation Watershed
St. Joseph River At Niles, Mi
19 hours ago · USGS 04101500
2,210 cfs 5.18 ft 71°F 61°F 664 ft St. Joseph
Grand River At Grand Rapids, Mi
19 hours ago · USGS 04119000
1,970 cfs 1.87 ft · 61°F 587 ft Lower Grand
Manistee River Near Wellston, Mi
18 hours ago · USGS 04125550
1,550 cfs 8.73 ft 67°F 55°F 621 ft Manistee
Menominee River At Koss, Mi
19 hours ago · USGS 04066800
1,250 cfs 9.85 ft · 55°F 663 ft Menominee
Au Sable River Near Au Sable, Mi
18 hours ago · USGS 04137500
1,190 cfs 8.57 ft 70°F 54°F 587 ft Au Sable
Au Sable River Near Curtisville, Mi
18 hours ago · USGS 04137005
1,180 cfs 8.27 ft 65°F 51°F 803 ft Au Sable
Manistee River Near Mesick, Mi
18 hours ago · USGS 04124200
1,100 cfs 3.59 ft 66°F 55°F 754 ft Manistee
Muskegon River Near Croton, Mi
18 hours ago · USGS 04121970
1,080 cfs 4.50 ft 70°F 58°F 685 ft Muskegon
Au Sable River Near Mc Kinley, Mi
18 hours ago · USGS 04136900
1,040 cfs 7.51 ft 62°F 51°F 853 ft Au Sable
Kalamazoo River At New Richmond, Mi
19 hours ago · USGS 04108660
1,020 cfs 10.19 ft 71°F 60°F 605 ft Kalamazoo
Menominee River Near Vulcan, Mi
20 hours ago · USGS 04065722
999 cfs 4.90 ft · 55°F 807 ft Menominee
St. Joseph River At Mottville, Mi
18 hours ago · USGS 04099000
991 cfs 2.77 ft · 59°F 780 ft St. Joseph
Menominee River Below Pemene Creek Near Pembine, Mi
19 hours ago · USGS 04066003
960 cfs 6.85 ft · 55°F 748 ft Menominee
Menominee River At White Rapids Dam Near Banat, Mi
19 hours ago · USGS 04066030
959 cfs 6.17 ft · 55°F 689 ft Menominee
Au Sable River At Mio, Mi
18 hours ago · USGS 04136500
954 cfs 3.07 ft 62°F 50°F 946 ft Au Sable
Manistee River Near Sherman, Mi
18 hours ago · USGS 04124000
932 cfs 11.80 ft 58°F 54°F 820 ft Manistee
Grand River At Ionia, Mi
18 hours ago · USGS 04116000
875 cfs 8.74 ft · 57°F 620 ft Lower Grand
Au Sable River Near Red Oak, Mi
18 hours ago · USGS 04136000
803 cfs 3.15 ft 58°F 50°F 1,008 ft Au Sable
Menominee River Near Florence, Mi
20 hours ago · USGS 04063000
680 cfs 3.05 ft · 54°F 1,118 ft Brule
Kalamazoo River At Comstock, Mi
18 hours ago · USGS 04106000
662 cfs 4.14 ft · 60°F 792 ft Kalamazoo
St. Joseph River At Three Rivers, Mi
19 hours ago · USGS 04097500
618 cfs 3.17 ft · 59°F 800 ft St. Joseph
Ontonagon River Near Rockland, Mi
18 hours ago · USGS 04040000
512 cfs 5.30 ft 32°F 61°F 670 ft Ontonagon
Grand River At Portland, Mi
19 hours ago · USGS 04114000
512 cfs 6.12 ft · 57°F 719 ft Upper Grand
Manistique River Near Manistique, Mi
18 hours ago · USGS 04056500
502 cfs 2.43 ft · 56°F 617 ft Manistique
Muskegon River At Evart, Mi
18 hours ago · USGS 04121500
477 cfs 6.83 ft · 53°F 997 ft Muskegon
Tittabawassee River At Midland, Mi
18 hours ago · USGS 04156000
471 cfs 9.09 ft · 58°F 586 ft Tittabawassee
Pere Marquette River At Scottville, Mi
19 hours ago · USGS 04122500
415 cfs · · 57°F 625 ft Pere Marquette-White
Grand River At Lansing, Mi
19 hours ago · USGS 04113000
400 cfs 2.93 ft · 57°F 808 ft Upper Grand
Kalamazoo River Near Battle Creek, Mi
18 hours ago · USGS 04105500
396 cfs 2.96 ft · 58°F 804 ft Kalamazoo
Paw Paw River At Riverside, Mi
19 hours ago · USGS 04102500
290 cfs 5.61 ft · 60°F 610 ft St. Joseph
Michigamme River Near Crystal Falls, Mi
19 hours ago · USGS 04062500
287 cfs 2.81 ft · 56°F 1,305 ft Michigamme
Escanaba River At Cornell, Mi
19 hours ago · USGS 04059000
285 cfs 1.39 ft 60°F 57°F 735 ft Escanaba
Tahquamenon River Near Paradise, Mi
19 hours ago · USGS 04045500
282 cfs 3.26 ft · 51°F 729 ft Tahquamenon
Thunder Bay River At Herron Road Near Bolton, Mi
18 hours ago · USGS 04133501
278 cfs 11.42 ft · 53°F 704 ft Thunder Bay
Kalamazoo River At Marshall, Mi
19 hours ago · USGS 04103500
256 cfs 4.22 ft · 56°F 882 ft Kalamazoo
Paint River Nr Alpha, Mi
19 hours ago · USGS 04062000
253 cfs 3.28 ft · 53°F 1,271 ft Brule
Huron River At Ann Arbor, Mi
18 hours ago · USGS 04174500
246 cfs 12.19 ft 64°F 58°F 758 ft Huron
White River Near Whitehall, Mi
18 hours ago · USGS 04122200
230 cfs · · 59°F 619 ft Pere Marquette-White
Pine River At High School Bridge Nr Hoxeyville, Mi
18 hours ago · USGS 04125460
213 cfs 3.94 ft 54°F 54°F 856 ft Manistee
Sturgeon River At Wolverine, Mi
18 hours ago · USGS 04127997
207 cfs 2.88 ft · 50°F 778 ft Cheboygan
South Branch Au Sable River Near Luzerne, Mi
18 hours ago · USGS 04135700
196 cfs 4.82 ft 58°F 50°F 1,070 ft Au Sable
River Raisin Near Monroe, Mi
19 hours ago · USGS 04176500
193 cfs 2.44 ft 67°F 58°F 618 ft Raisin
Brule River At Us Highway 2 Near Florence, Mi
19 hours ago · USGS 04060993
192 cfs 3.50 ft · 55°F 1,241 ft Brule
Clinton River At Moravian Drive At Mt. Clemens, Mi
18 hours ago · USGS 04165500
192 cfs 5.81 ft 67°F 61°F 574 ft Clinton
Rifle River Near Sterling, Mi
18 hours ago · USGS 04142000
192 cfs 1.53 ft 53°F 57°F 639 ft Au Gres-Rifle
Shiawassee River At Owosso, Mi
18 hours ago · USGS 04144500
190 cfs 2.41 ft · 59°F 695 ft Shiawassee
Jordan River Near East Jordan, Mi
19 hours ago · USGS 04127800
178 cfs 3.43 ft · 54°F 629 ft Boardman-Charlevoix
Dowagiac River At Sumnerville, Mi
19 hours ago · USGS 04101800
175 cfs 5.03 ft · 61°F 716 ft St. Joseph
Tobacco River At Glidden Road At Beaverton, Mi
19 hours ago · USGS 04152500
174 cfs 2.29 ft · 56°F 715 ft Tittabawassee
Thornapple River Near Hastings, Mi
18 hours ago · USGS 04117500
155 cfs 3.19 ft · 57°F 803 ft Thornapple
Platte River At Honor, Mi
19 hours ago · USGS 04126740
154 cfs 1.36 ft · 55°F 606 ft Betsie-Platte
Huron River Near Hamburg, Mi
19 hours ago · USGS 04172000
150 cfs 4.68 ft · 57°F 852 ft Huron
Clinton River Near Fraser, Mi
18 hours ago · USGS 04164000
148 cfs 5.65 ft · 61°F 586 ft Clinton
Flint River Near Flint, Mi
19 hours ago · USGS 04148500
132 cfs 3.21 ft · 60°F 684 ft Flint
Little Muskegon River Near Oak Grove, Mi
18 hours ago · USGS 04121944
131 cfs 3.03 ft 60°F 58°F 756 ft Muskegon
Sturgeon River Near Alston, Mi
18 hours ago · USGS 04041500
127 cfs 3.89 ft 65°F 59°F 735 ft Sturgeon
River Raisin Near Adrian, Mi
18 hours ago · USGS 04176000
122 cfs 4.03 ft · 56°F 699 ft Raisin
Boardman R Above Brown Bridge Road Nr Mayfield, Mi
18 hours ago · USGS 04126970
119 cfs 3.24 ft · 54°F 826 ft Boardman-Charlevoix
Chippewa River Near Mount Pleasant, Mi
18 hours ago · USGS 04154000
115 cfs 3.14 ft · 55°F 730 ft Pine
Clinton River At Sterling Heights, Mi
19 hours ago · USGS 04161820
108 cfs 7.65 ft 65°F 60°F 612 ft Clinton
Rogue River Near Rockford, Mi
19 hours ago · USGS 04118500
102 cfs 3.64 ft · 59°F 665 ft Lower Grand
Battle Creek At Battle Creek, Mi
19 hours ago · USGS 04105000
101 cfs · · 58°F 824 ft Kalamazoo
Flint River Near Otisville, Mi
18 hours ago · USGS 04147500
100 cfs 2.73 ft · 58°F 728 ft Flint
Pine River Near Midland, Mi
19 hours ago · USGS 04155500
93 cfs 2.69 ft · 58°F 628 ft Pine
Middle Branch Ontonagon River Near Paulding, Mi
19 hours ago · USGS 04033000
87 cfs 4.07 ft · 53°F 1,500 ft Ontonagon
Middle Branch Escanaba River Nr Princeton, Mi
18 hours ago · USGS 04058100
74 cfs 1.48 ft · 57°F 1,114 ft Escanaba
Pigeon R At Sturgeon Valley Rd Near Vanderbilt, Mi
18 hours ago · USGS 04128990
72 cfs 2.21 ft · 50°F 914 ft Cheboygan
Grand River At Jackson, Mi
18 hours ago · USGS 04109000
71 cfs 9.05 ft · 55°F 911 ft Upper Grand
Red Cedar River At East Lansing, Mi
18 hours ago · USGS 04112500
70 cfs 3.36 ft · 57°F 829 ft Upper Grand
Cass River At Frankenmuth, Mi
19 hours ago · USGS 04151500
68 cfs 3.58 ft · 58°F 591 ft Cass
Looking Glass River Near Eagle, Mi
19 hours ago · USGS 04114498
68 cfs 2.89 ft · 57°F 754 ft Upper Grand
Sturgeon River Near Nahma Junction, Mi
19 hours ago · USGS 04057510
67 cfs 3.89 ft · 56°F 662 ft Fishdam-Sturgeon
Clinton River At Auburn Hills, Mi
19 hours ago · USGS 04161000
64 cfs 1.32 ft · 59°F 846 ft Clinton
Iron River At County Hwy-424 At Caspian, Mi
19 hours ago · USGS 04060500
60 cfs 4.06 ft · 52°F 1,446 ft Brule
Clam River At Vogel Center, Mi
18 hours ago · USGS 04121300
60 cfs 2.65 ft · 51°F 1,134 ft Muskegon
St. Joseph River At Burlington, Mi
19 hours ago · USGS 04096405
52 cfs 3.07 ft · 57°F 906 ft St. Joseph
Maple River At Maple Rapids, Mi
18 hours ago · USGS 04115000
52 cfs 2.94 ft · 57°F 646 ft Maple
South Branch Tobacco River Near Beaverton, Mi
18 hours ago · USGS 04152238
46 cfs 4.16 ft · 56°F 727 ft Tittabawassee
Lower River Rouge At Dearborn, Mi
19 hours ago · USGS 04168400
45 cfs 3.25 ft 66°F 61°F 582 ft Detroit
River Rouge At Detroit, Mi
19 hours ago · USGS 04166500
45 cfs 4.98 ft 65°F 61°F 591 ft Detroit
Ford River Near Hyde, Mi
19 hours ago · USGS 04059500
42 cfs 1.61 ft 46°F 58°F 707 ft Cedar-Ford
Red Cedar River Near Williamston, Mi
18 hours ago · USGS 04111379
39 cfs 2.48 ft · 56°F 865 ft Upper Grand
Prairie River Near Nottawa, Mi
19 hours ago · USGS 04097540
39 cfs 2.98 ft 36°F 59°F 872 ft St. Joseph
West Branch Ontonagon River Near Bergland, Mi
18 hours ago · USGS 04036000
37 cfs 1.28 ft · 55°F 1,304 ft Ontonagon
Middle River Rouge Near Garden City, Mi
18 hours ago · USGS 04167000
36 cfs 2.67 ft · 61°F 609 ft Detroit
Portage Creek At Kalamazoo, Mi
18 hours ago · USGS 04106500
34 cfs 2.15 ft · 59°F 766 ft Kalamazoo
Galien River Near Sawyer, Mi
18 hours ago · USGS 04096015
34 cfs 6.13 ft · 61°F 614 ft Little Calumet-Galien
South Branch Black River Near Bangor, Mi
19 hours ago · USGS 04102700
34 cfs 2.40 ft · 59°F 613 ft Black-Macatawa
South Branch Flint River Near Columbiaville, Mi
18 hours ago · USGS 04146063
33 cfs 1.35 ft · 57°F 768 ft Flint
Saline River Near Saline, Mi
19 hours ago · USGS 04176400
30 cfs 4.89 ft · 56°F 711 ft Raisin
Mill Creek Near Dexter, Mi
19 hours ago · USGS 04173500
29 cfs 5.66 ft · 57°F 856 ft Huron
Augusta Creek Near Augusta, Mi
19 hours ago · USGS 04105700
27 cfs · · 57°F 817 ft Kalamazoo
Greenwood Release Near Greenwood, Mi
18 hours ago · USGS 04057814
27 cfs 2.45 ft · 55°F 1,478 ft Escanaba
River Rouge At Southfield, Mi
18 hours ago · USGS 04166100
24 cfs 3.85 ft 64°F 60°F 618 ft Detroit
Greenwood Diversion Near Greenwood, Mi
19 hours ago · USGS 04057813
22 cfs 1.64 ft · 55°F 1,439 ft Escanaba
Black River Near Bessemer, Mi
20 hours ago · USGS 04031000
21 cfs 1.96 ft · 55°F 1,186 ft Black-Presque Isle
Rabbit River Near Hopkins, Mi
19 hours ago · USGS 04108600
20 cfs 2.69 ft · 59°F 717 ft Kalamazoo
Wanadoga Creek Near Battle Creek, Mi
19 hours ago · USGS 04104945
19 cfs 3.33 ft · 57°F 833 ft Kalamazoo
Silver River Near L'Anse, Mi
18 hours ago · USGS 04043150
19 cfs 6.34 ft · 58°F 625 ft Dead-Kelsey
Sycamore Creek At Holt Road Near Holt, Mi
19 hours ago · USGS 04112850
18 cfs 2.34 ft · 56°F 856 ft Upper Grand
Black River Near Jeddo, Mi
19 hours ago · USGS 04159492
16 cfs 3.00 ft · 56°F 664 ft St. Clair
Sturgeon River Near Sidnaw, Mi
18 hours ago · USGS 04040500
14 cfs 3.21 ft · 52°F 1,228 ft Sturgeon
North Branch Clinton River Near Mt. Clemens, Mi
19 hours ago · USGS 04164500
13 cfs 4.22 ft · 60°F 584 ft Clinton
Fish Creek Near Crystal, Mi
19 hours ago · USGS 04115265
12 cfs 1.98 ft · 56°F 802 ft Maple
East Branch Pine River Near Tustin, Mi
18 hours ago · USGS 04124500
12 cfs 2.40 ft · 52°F 1,149 ft Manistee
Belle River At Memphis, Mi
18 hours ago · USGS 04160600
11 cfs 1.02 ft · 52°F 713 ft St. Clair
Mill Creek Near Avoca, Mi
19 hours ago · USGS 04159900
11 cfs · · 52°F 714 ft St. Clair
Upper River Rouge At Farmington, Mi
18 hours ago · USGS 04166300
10 cfs 3.05 ft · 60°F 692 ft Detroit
Kearsley Creek Near Davison, Mi
19 hours ago · USGS 04148140
10 cfs 3.11 ft · 59°F 759 ft Flint
South Branch Hog Creek Near Allen, Mi
18 hours ago · USGS 04096515
8 cfs 1.64 ft · 55°F 1,013 ft St. Joseph
West Fork Portage Creek At Kalamazoo, Mi
19 hours ago · USGS 04106400
7 cfs 2.38 ft · 59°F 883 ft Kalamazoo
Middle Branch Clinton River At Macomb, Mi
19 hours ago · USGS 04164800
7 cfs 5.97 ft · 58°F 610 ft Clinton
West Fork Portage Creek Near Oshtemo, Mi
18 hours ago · USGS 04106320
7 cfs 1.55 ft · 58°F 875 ft Kalamazoo
Farmers Creek Near Lapeer, Mi
19 hours ago · USGS 04146000
7 cfs 15.24 ft · 54°F 827 ft Flint
Schweitzer Creek Near Palmer, Mi
19 hours ago · USGS 04058200
7 cfs 2.91 ft · 52°F 1,277 ft Escanaba
Black River Near Garnet, Mi
18 hours ago · USGS 04046000
6 cfs 2.38 ft · 54°F 655 ft Brevoort-Millecoquins
Macatawa River At State Road Near Zeeland, Mi
19 hours ago · USGS 04108800
5 cfs 2.09 ft · 60°F 598 ft Black-Macatawa
Middle Branch Escanaba River At Humboldt, Mi
18 hours ago · USGS 04057800
5 cfs 1.62 ft 56°F 54°F 1,526 ft Escanaba
East Pond Creek At Romeo, Mi
19 hours ago · USGS 04164100
4 cfs 1.03 ft · 54°F 778 ft Clinton
Bear Creek Near Muskegon, Mi
18 hours ago · USGS 04122100
4 cfs 10.47 ft · 60°F 609 ft Muskegon
Malletts Creek At Ann Arbor, Mi
18 hours ago · USGS 04174518
4 cfs 3.20 ft · 58°F 749 ft Huron
Plum Brook At Utica, Mi
18 hours ago · USGS 04163400
3 cfs 2.01 ft · 60°F 633 ft Clinton
Ecorse River At Dearborn Heights, Mi
19 hours ago · USGS 04168580
1 cfs 2.25 ft · 61°F 611 ft Detroit
Cisco Branch Ontonagon R At Cisco Lake Outlet, Mi
20 hours ago · USGS 04037500
1 cfs 3.87 ft · 53°F 1,688 ft Ontonagon
Sloan Creek Near Williamston, Mi
19 hours ago · USGS 04112000
0 cfs 1.50 ft · 56°F 870 ft Upper Grand
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Flow report FAQ

About Michigan streamflow

What are river levels like in Michigan right now?

As of September 15, 2026, Michigan rivers are running at 81% of normal across 125 USGS streamgauges, and the St. Joseph River At Niles is reporting the highest discharge at 2,210 cfs. The full sortable gauge table is below.

Which Michigan river is running highest right now?

As of September 15, 2026, the highest discharge in Michigan is 2,210 cfs on the St. Joseph River At Niles. See the sortable gauge table for the full statewide ranking.

Are Michigan rivers high or low right now?

Compare the statewide percent-of-normal on this page: above 100% means Michigan rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.

Where does the Michigan streamflow data come from?

The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.

What is cfs?

Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.

What does Gauge Height mean?

The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").

How fresh is the Michigan data?

USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.

Can I get a flow alert for a Michigan gauge?

Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.

Is this a substitute for an NWS flood warning?

No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.