Every watch, warning and advisory the National Weather Service has in force over Mercer County, Illinois. Open it for the live map, where it pans and zooms.
Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.
Alerts in force2
Every product in force for Mercer County, worst first, with its full text.
Flood Watch
Severe
Flood Watch issued September 20 at 11:18AM CDT until September 25 at 10:00AM CDT by NWS Quad Cities IA IL
Begins Until 5 days left
Areas Louisa, IA; Des Moines, IA; Mercer, IL; Henderson, IL
Full text
...The Flood Watch continues for the following rivers in Illinois...
Iowa...
Mississippi River at Keithsburg affecting Louisa, Des Moines,
Mercer and Henderson Counties.
Mississippi River at Gladstone LD18 affecting Des Moines and
Henderson Counties.
Mississippi River at Burlington affecting Hancock, Des Moines, Lee
and Henderson Counties.
.Additional rainfall from today through Monday night is expected to
be considerably lighter than what fell Thursday through Saturday
night. This helps provide higher confidence in these river forecasts
compared to 24 hours ago.
* WHAT...Flooding is possible.
* WHERE...Mississippi River at Keithsburg.
* WHEN...From Tuesday evening to Friday morning.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Sunday the stage was 8.9 feet and rising.
- Forecast...Flood stage may be reached late Tuesday evening.
- Flood stage is 14.0 feet.
What to do
If you are in the watch area, remain alert to possible flooding.
Residents and those with interests near the river should monitor
rising water levels and be prepared for possible Flood Warnings.
The next statement will be issued by Monday morning.
Flood Watch issued September 19 at 10:12PM CDT until September 25 at 1:00PM CDT by NWS Quad Cities IA IL
Begins Until 5 days left
Areas Louisa, IA; Mercer, IL
Full text
...The National Weather Service in Quad Cities has issued a Flood
Watch for the following rivers in Illinois...Iowa...Missouri...
Mississippi River at Rock Island LD15 affecting Scott, Muscatine
and Rock Island zones.
Mississippi River at Muscatine affecting Mercer, Muscatine, Rock
Island and Louisa Counties.
Mississippi River at New Boston LD17 affecting Mercer and Louisa
Counties.
Mississippi River at Gladstone LD18 affecting Des Moines and
Henderson Counties.
Mississippi River at Keithsburg affecting Henderson, Des Moines,
Louisa and Mercer Counties.
Mississippi River at Ill. City LD16 affecting Muscatine and Rock
Island zones.
Mississippi River at Burlington affecting Hancock, Des Moines,
Henderson and Lee Counties.
Mississippi River at Gregory Landing affecting Hancock and Clark
Counties.
* WHAT...Flooding is possible.
* WHERE...Mississippi River at New Boston LD17.
* WHEN...From late Monday night to Friday afternoon.
* ADDITIONAL DETAILS...
- At 9:10 PM CDT Saturday the stage was 7.2 feet.
- Forecast...Flood stage may be reached early Tuesday morning.
- Flood stage is 15.0 feet.
What to do
If you are in the watch area, remain alert to possible flooding.
Residents and those with interests near the river should monitor
rising water levels and be prepared for possible Flood Warnings.
Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.
The next statement will be issued by Sunday evening.
In the past year the National Weather Service issued 132 alerts for Mercer County, including 30 severe thunderstorm warnings, 7 flash flood warnings, 4 tornado warnings and 3 extreme heat warnings.
From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.
Nearby
The counties around Mercer County, with what is in force in each.
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.
Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.
Sources
Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.
