Live flood monitor

Real-time river flooding
across America.

Live USGS streamgauge readings, FEMA flood zones, NWS flood watches and warnings, and historical context — one map, refreshed throughout the day. Built for flood researchers, emergency managers, and outdoor recreationists.

Last updated June 30, 2026 · 118 sensors live
Rivers above flood
33
Watersheds elevated
83
Active flood sensors
118
USGS gauges tracked
10K+
Layers
Flow vs. normal
< 50%
~ 100%
200%
500%+
Tiles © Mapbox · Data USGS, NOAA NWS, FEMA, NRCS · Click any feature for details · Multiple layers under your click aggregate into one popup.
Today's flood briefing

What's happening right now

An AI-generated daily summary stitched from active streamgauge readings, NWS warnings, and watershed status.

June
30
2026
Flood report
# CRITICAL FLOODING EMERGENCY: Multiple States Face Catastrophic Water Levels as Rivers Surge to Dangerous Extremes

A severe flooding crisis is unfolding across the central and southern United States, with dozens of rivers and watersheds experiencing catastrophic streamflow levels—some exceeding 10,000% of normal capacity. The most dire situation is developing in north-central Texas, where the Wichita River near Wichita Falls has surged to an astronomical 10,802% of normal levels, while communities along the Illinois, Kentucky, and Wabash Rivers face immediate danger as water levels soar to nearly 900% above normal. This flooding emergency comes as federal disaster response teams continue cleanup efforts in Louisiana's Avoyelles Parish and as two flood-related fatalities have been confirmed in Madison County, Kentucky, underscoring the deadly nature of this rapidly evolving crisis.

The situation is particularly catastrophic in the Arkansas River basin and surrounding regions. In Kansas and Oklahoma, the Neosho River system is experiencing unprecedented flooding at 2,572% of normal flow, threatening communities near Coffeyville, Kansas and Miami, Oklahoma. The Arkansas River near Coon-Pickerel Creek has reached 4,130% of normal, putting Arkansas City, Kansas at extreme risk. Meanwhile, Texas communities face multiple threats: the Lampasas River near Lampasas has exploded to 4,723% of normal flow, the Richland Creek area near Corsicana shows 5,210% of normal, and the Frog-Mulberry watershed near Van Buren has reached an incomprehensible 5,100% of normal levels. In Louisiana, the Wichita River measurements indicate catastrophic conditions that could overwhelm levee systems and force mass evacuations.

The flooding extends throughout the Ohio and Mississippi River valleys, where critical infrastructure faces imminent failure. The Lower Kentucky River near Paducah is flowing at 884% of normal with over 75,000 cubic feet per second, while the Wabash River system—including areas near Vincennes, Indiana and the Illinois border—has surged to 189% of normal with flows exceeding 170,000 cfs. The Lower Ohio-Little Pigeon watershed near Evansville, Indiana shows the most alarming reading at 6,182% of normal flow. The Rolling Fork area near Hodgenville, Kentucky has reached 4,430% of normal, and the Rough River near Falls of Rough is at 4,468% of normal, threatening dam integrity and downstream communities. As Louisiana's agricultural commissioner outlines paths to federal aid for flood-damaged farms and low-income families remain trapped in repeatedly flooded areas with no evacuation options, authorities urge immediate action for residents in affected zones to seek higher ground before conditions deteriorate further.
Right now

Rivers currently flooding or rising

Live USGS streamgauge readings aggregated by river. Percent-of-normal compares current flow to the seasonal average.

River Observed (cfs) Seasonal avg (cfs) vs. Normal
Sangamon River 651 108 ↑ 603% of normal
Caney River 1,760 82 ↑ 2160% of normal
Black Warrior River 5,000 4,500 111% of normal
Satilla River 13,900 520 ↑ 2673% of normal
Little Wabash River 10,400 563 ↑ 1849% of normal
Verdigris River 10,708 1,169 ↑ 916% of normal
Salt River 554 62 ↑ 892% of normal
Chickasawhay River 17,200 1,160 ↑ 1483% of normal
Delaware River 1,790 189 ↑ 950% of normal
Wichita River 1,010 9 ↑ 10802% of normal
Embarras River 14,200 2,360 ↑ 602% of normal
White River 31,120 15,914 ↑ 196% of normal
Wolf River 643 71 ↑ 903% of normal
Sulphur River 6,530 661 ↑ 988% of normal
Wild Rice River 44 248 18% of normal
Wabash River 167,900 90,000 ↑ 187% of normal
Cedar River 369 143 ↑ 258% of normal
Arkansas River 2,230 54 ↑ 4130% of normal
Tombigbee River 20,501 25,885 79% of normal
Languille River 1,600 129 ↑ 1245% of normal
Tongue River 184 22 ↑ 834% of normal
Osage River 34,900 5,145 ↑ 678% of normal
Knife River 529 37 ↑ 1430% of normal
Alapaha River 1,130 43 ↑ 2613% of normal
Samish River 38 43 89% of normal
Patoka River 17,450 1,088 ↑ 1604% of normal
Pearl River 29,800 4,130 ↑ 722% of normal
Neosho River 124,806 4,853 ↑ 2572% of normal
Illinois River 82,210 39,775 ↑ 207% of normal
Lampasas River 397 8 ↑ 4723% of normal
Kentucky River 74,600 8,425 ↑ 885% of normal
Blue River 2,320 378 ↑ 614% of normal
Tradewater River 758 123 ↑ 616% of normal
By basin

Watersheds running elevated

Aggregated by HUC8 watershed code. Useful for catchment-level flood-risk assessment.

HUC8 code Watershed Observed (cfs) vs. Normal
h03160106 Middle Tombigbee-Lubbub 1,561 39%
h07140101 Cahokia-Joachim 4,340 ↑ 687%
h05120209 Patoka 17,450 ↑ 1604%
h07120004 Des Plaines 490 106%
h17110002 Strait Of Georgia 38 89%
h03110202 Alapaha 1,130 ↑ 2613%
h05120202 Lower White 30,100 ↑ 190%
h11070106 Caney 1,760 ↑ 2160%
h05100205 Lower Kentucky 75,191 ↑ 884%
h11070103 Middle Verdigris 9,750 ↑ 859%
h05120204 Driftwood 358 ↑ 767%
h11140203 Loggy Bayou 2,250 ↑ 9494%
h09020105 Western Wild Rice 44 18%
h10290111 Lower Osage 34,900 ↑ 678%
h12040104 Buffalo-San Jacinto 211 ↑ 3836%
h11070102 Fall 181 ↑ 2183%
h11140302 Lower Sulphur 7,800 ↑ 1115%
h10030201 Two Medicine 2,000 ↑ 871%
h11070206 Lake O'Cherokees 30,200 ↑ 1967%
h03170003 Lower Chickasawhay 17,200 ↑ 1483%
h10260008 Lower Smoky Hill 1,800 ↑ 1147%
h04010102 Beaver-Lester 529 ↑ 1430%
h10290101 Upper Marais Des Cygnes 1,056 ↑ 1985%
h11010001 Beaver Reservoir 1,753 ↑ 1394%
h11110201 Frog-Mulberry 153 ↑ 5100%
h05140205 Tradewater 758 ↑ 616%
h09020313 Pembina 548 ↑ 1837%
h11140103 Muddy Boggy 2,250 ↑ 955%
h11030014 North Fork Ninnescah 868 ↑ 2315%
h05140201 Lower Ohio-Little Pigeon 540 ↑ 6182%
h10020004 Big Hole 1,040 ↑ 759%
h12030103 Elm Fork Trinity 3,950 ↑ 895%
h05070101 Upper Guyandotte 504 ↑ 1383%
h05130105 Obey 643 ↑ 903%
h05130104 South Fork Cumberland 5,716 ↑ 740%
h11070104 Elk 409 ↑ 1981%
h03080103 Lower St. Johns 139,860 106%
h08080102 Bayou Teche 2,240 ↑ 3102%
h03170001 Chunky-Okatibbee 1,340 ↑ 740%
h03160201 Middle Tombigbee-Chickasaw 18,940 87%
h10270103 Delaware 1,790 ↑ 950%
h11120303 Lower North Fork Red 473 ↑ 672%
h15010015 Las Vegas Wash 212 ↑ 636%
h12030108 Richland 466 ↑ 5210%
h11130206 Wichita 1,010 ↑ 10802%
h03160113 Lower Black Warrior 5,000 111%
h11110104 Robert S. Kerr Reservoir 1,243 ↑ 1683%
h11070101 Upper Verdigris 958 ↑ 2851%
h11140208 Saline Bayou 303 ↑ 987%
h06010207 Lower Clinch 837 ↑ 792%
h11110103 Illinois 7,294 ↑ 2789%
h05020001 Tygart Valley 384 ↑ 698%
h05050009 Coal 1,010 ↑ 656%
h12070203 Lampasas 397 ↑ 4723%
h11070205 Middle Neosho 236 ↑ 1967%
h11070201 Neosho Headwaters 506 ↑ 2811%
h05120114 Little Wabash 10,400 ↑ 1849%
h05120113 Lower Wabash 170,226 ↑ 189%
h05120112 Embarras 14,200 ↑ 602%
h05120111 Middle Wabash-Busseron 1,600 ↑ 1151%
h11070209 Lower Neosho 94,536 ↑ 2855%
h09020201 Devils Lake 1,256 ↑ 2917%
h03180002 Middle Pearl-Strong 435 ↑ 7909%
h11030004 Coon-Pickerel 2,230 ↑ 4130%
h03180004 Lower Pearl. Mississippi 29,800 ↑ 722%
h07090001 Upper Rock 261 ↑ 668%
h11070208 Elk 176 ↑ 631%
h12070205 San Gabriel 337 ↑ 3547%
h07130011 Lower Illinois 75,500 ↑ 191%
h05110001 Upper Green 244 ↑ 935%
h05110004 Rough 5,250 ↑ 4468%
h05100102 South Fork Licking 2,990 ↑ 772%
h11140101 Bois D'Arc-Island 6,334 ↑ 1458%
h05140104 Blue-Sinking 2,654 ↑ 655%
h03130009 Ichawaynochaway 466 ↑ 687%
h05140102 Salt 1,778 ↑ 686%
h05140103 Rolling Fork 41,660 ↑ 4430%
h05140101 Silver-Little Kentucky 575 ↑ 810%
h07130006 Upper Sangamon 651 ↑ 603%
h17110012 Lake Washington 31 63%
h08020205 L'Anguille 1,600 ↑ 1245%
h03070201 Satilla 13,900 ↑ 2673%
h07140204 Lower Kaskaskia 2,097 ↑ 644%
Background

What causes river flooding

Flooding is rarely a single-cause event — multiple factors usually compound. The most common drivers across the U.S.

🌧

Heavy rainfall

Persistent rain saturates soils and overwhelms drainage networks. Tropical systems and atmospheric rivers are the worst culprits.

Rapid snowmelt

Spring melt pulses can deliver months of accumulated water in days — especially when warm rain falls on existing snowpack.

🧊

Ice jams

Breakup ice can block channels, forcing water to back up and inundate upstream banks. Common on northern rivers in early spring.

🌊

Storm surge

Coastal hurricanes push seawater inland. Surge combined with rainfall is the deadliest flood scenario in U.S. history.

🛡

Reservoir releases

Controlled dam releases can dramatically increase downstream flow. USACE and USBR publish release schedules, but conditions change fast.

🌌

Burn scars

Wildfire-stripped slopes can't absorb rainfall — even modest storms produce dangerous flash floods on burned watersheds for years afterward.

Safety

Flood preparedness checklist

Floodwaters rise faster than most people expect. The basics that save lives.

1
Never drive through floodwaterSix inches can stall a car; two feet floats most vehicles. Turn around — don't drown.
2
Monitor levels near youTrack the gauges upstream of your location. Snoflo's push alerts can ping you the moment a threshold is crossed.
3
Have an evacuation planKnow two routes out and where higher ground sits. If officials issue an evacuation order, leave — don't wait.
4
Move valuables upDocuments, electronics, and sentimentals to upper floors. Disconnect electrical at the main breaker if water enters the structure.
5
Trust official sourcesNWS warnings and local emergency management are the authoritative source. Snoflo data is informational; always cross-check.
6
After the water recedesDon't return until officials clear the area. Floodwater carries sewage, fuel, and downed power. Document damage before cleanup.
Frequently asked

Flood map & river monitoring FAQ

What does "percent of normal" mean?

The current flow at a gauge compared to its seasonal average for this date. 100% means flow is right at the historical norm. 200%+ means twice the typical flow — a strong indicator of flood conditions on small-to-medium rivers.

What's the difference between a flood watch and a flood warning?

Watch: conditions are favorable for flooding within the next 12–48 hours. Warning: flooding is happening or imminent. Both come from the National Weather Service. Snoflo overlays both as toggleable layers on the map above.

How often does Snoflo's data refresh?

USGS streamgauge readings update every 15 minutes; we re-pull every hour. NWS warning polygons update as the NWS issues them — usually within 5 minutes. FEMA flood zones are static (the National Flood Hazard Layer is updated quarterly).

What is the FEMA flood zone layer?

FEMA's National Flood Hazard Layer (NFHL) shows the 1%-annual-chance ("100-year") and 0.2%-annual-chance ("500-year") floodplains. These are based on long-term hydrologic modeling, not current conditions. Useful for property risk; not a real-time signal.

Can I get an alert when my local river floods?

Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a threshold (e.g. "alert me at 20 ft stage"), and you'll get a push the moment it crosses. Free with a Snoflo account.

Is Snoflo a substitute for official warnings?

No. Snoflo is informational. For life-safety decisions always follow guidance from local emergency management, the NWS, and law enforcement.