Mercer County, IL

Alerts

Warning Area
County Line

Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.

In effect from Tuesday 04/21 11:09 AM CDT – Wednesday 04/22 11:15 AM CDT

Issued by NWS Quad Cities IA IL

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri...

Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties.

Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties.

Mississippi River at Muscatine affecting Louisa, Rock Island, Mercer and Muscatine Counties.

Mississippi River at Gregory Landing affecting Hancock and Clark Counties.

Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties.

Mississippi River at Keithsburg affecting Louisa, Mercer, Henderson and Des Moines Counties.

Mississippi River at Burlington affecting Hancock, Henderson, Lee and Des Moines Counties.

Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties.

What

Moderate flooding is occurring and is forecast to continue.

Where

Mississippi River at Keithsburg.

When

Until further notice.

Impacts

At 16.0 feet, Water is over the campground and boat ramp in Keithsburg.

Additional Details

- At 10:30 AM CDT Tuesday the stage was 15.8 feet. - Forecast...The river is expected to rise to a crest of 16.1 feet Thursday evening and fall slowly through early next week. - Flood stage is 14.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Caution is urged when walking near riverbanks.
The next statement will be issued by Wednesday morning at 1115 AM CDT.


Areas impacted

  • Des Moines, IA
  • Louisa, IA
  • Henderson, IL
  • Mercer, IL

Tips to stay safe

A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home. 

  • If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

In effect from Tuesday 04/21 11:09 AM CDT – Wednesday 04/22 11:15 AM CDT

Issued by NWS Quad Cities IA IL

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri...

Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties.

Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties.

Mississippi River at Muscatine affecting Louisa, Rock Island, Mercer and Muscatine Counties.

Mississippi River at Gregory Landing affecting Hancock and Clark Counties.

Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties.

Mississippi River at Keithsburg affecting Louisa, Mercer, Henderson and Des Moines Counties.

Mississippi River at Burlington affecting Hancock, Henderson, Lee and Des Moines Counties.

Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties.

What

Moderate flooding is occurring and is forecast to continue.

Where

Mississippi River at New Boston LD17.

When

Until further notice.

Impacts

At 18.1 feet, Lock and Dam 17 is closed.

Additional Details

- At 10:40 AM CDT Tuesday the stage was 16.7 feet. - Forecast...The river is expected to rise to a crest of 17.3 feet early Friday afternoon and slowly fall through early next week. - Flood stage is 15.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Caution is urged when walking near riverbanks.
The next statement will be issued by Wednesday morning at 1115 AM CDT.


Areas impacted

  • Louisa, IA
  • Mercer, IL

Tips to stay safe

A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home. 

  • If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

In effect from Tuesday 04/21 11:09 AM CDT – Tuesday 04/28 9:00 PM CDT

Issued by NWS Quad Cities IA IL

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri...

Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties.

Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties.

Mississippi River at Muscatine affecting Louisa, Rock Island, Mercer and Muscatine Counties.

Mississippi River at Gregory Landing affecting Hancock and Clark Counties.

Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties.

Mississippi River at Keithsburg affecting Louisa, Mercer, Henderson and Des Moines Counties.

Mississippi River at Burlington affecting Hancock, Henderson, Lee and Des Moines Counties.

Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties.

What

Minor flooding is occurring and is forecast to continue.

Where

Mississippi River at Muscatine.

When

Until early next week.

Impacts

At 18.0 feet, Water affects most of the Riverside Park parking lot.

Additional Details

- At 10:15 AM CDT Tuesday the stage was 16.8 feet. - Forecast...The river is expected to rise to a crest of 17.6 feet early Friday afternoon. It will then fall below flood on Tuesday. - Flood stage is 16.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Caution is urged when walking near riverbanks.
The next statement will be issued by Wednesday morning at 1115 AM CDT.


Areas impacted

  • Louisa, IA
  • Muscatine, IA
  • Mercer, IL
  • Rock Island, IL

Tips to stay safe

A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home. 

  • If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

From the forecaster

3 Day Outlook

Created by the NWS Quad Cities WFO

Warm and dry conditions are expected through Thursday with the next chance for showers and storms coming in Thursday night into Friday morning.

Seven-day weather risk overview

Daily weather risk summary

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