Every watch, warning and advisory the National Weather Service has in force over Lewis County, Missouri. 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 Lewis County, worst first, with its full text.
Flood Warning
Severe
Flood Warning issued September 20 at 11:48AM CDT until September 27 at 3:00AM CDT by NWS St Louis MO
Begins Until 7 days left
Areas Adams, IL; Lewis, MO
Full text
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Missouri...Illinois...
Mississippi River at Canton.
Mississippi River at Clarksville.
Mississippi River at Saverton.
Mississippi River at LaGrange.
Mississippi River at Hannibal.
Mississippi River at Winfield.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at LaGrange.
* WHEN...From Wednesday evening to late Saturday night.
* IMPACTS...At 18.0 feet, The entrance to the lower parking lot at
the Mark Twain Casino begins flooding near this height, requiring
the use of an alternate entrance.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Sunday the stage was 8.6 feet.
- Forecast...The river is expected to rise above flood stage
Wednesday evening to a crest of 17.9 feet early Thursday
afternoon. It will then fall below flood stage Friday evening.
- Flood stage is 17.0 feet.
What to do
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
Flood Warning issued September 20 at 11:48AM CDT until September 27 at 12:00PM CDT by NWS St Louis MO
Begins Until 7 days left
Areas Adams, IL; Lewis, MO
Full text
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Missouri...Illinois...
Mississippi River at Canton.
Mississippi River at Clarksville.
Mississippi River at Saverton.
Mississippi River at LaGrange.
Mississippi River at Hannibal.
Mississippi River at Winfield.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Canton.
* WHEN...From Wednesday morning to Sunday afternoon.
* IMPACTS...At 16.6 feet, Front Street leading to the campground and
Corps park campgrounds flood at this height.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 7.0 feet.
- Forecast...The river is expected to rise above flood stage late
Wednesday morning to a crest of 16.6 feet Thursday evening. It
will then fall below flood stage early Saturday morning.
- Flood stage is 15.0 feet.
What to do
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
In the past year the National Weather Service issued 95 alerts for Lewis County, including 13 severe thunderstorm warnings, 7 flood warnings, 3 extreme heat warnings and 3 flash flood 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 Lewis 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.
