Every watch, warning and advisory the National Weather Service has in force over Mercer County, Ohio. 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 Warning
Severe
Flood Warning issued September 20 at 5:21PM EDT until September 21 at 8:00AM EDT by NWS Wilmington OH
Issued Until 14 hr 35 min left
Areas Auglaize, OH; Mercer, OH
Full text
...The Flood Warning continues for the following rivers...
St. Marys River at Rockford.
* WHAT...Minor flooding is forecast.
* WHERE...St. Marys River at Rockford.
* WHEN...Until Monday morning.
* IMPACTS...At 13.0 feet, State Route 117 near Route 118 north of
Rockford is water-covered and closed.
* ADDITIONAL DETAILS...
- At 4:40 PM EDT Sunday the stage was 12.9 feet.
- Forecast...The river is expected to rise to a crest of 13.0 feet
this evening. It will then fall below flood stage just after
midnight tonight.
- Flood stage is 13.0 feet.
What to do
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov/iln.
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of Indiana, including the following counties,
Dearborn, Fayette, Franklin, Ripley, Union and Wayne and Ohio,
including the following counties, Adams, Auglaize, Brown, Butler,
Champaign, Clark, Clermont, Clinton, Darke, Delaware, Fairfield,
Fayette, Franklin, Greene, Hamilton, Hardin, Highland, Hocking,
Licking, Logan, Madison, Mercer, Miami, Montgomery, Pickaway, Pike,
Preble, Ross, Scioto, Shelby, Union and Warren.
* WHEN...From 7 PM EDT this evening through Monday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms producing heavy rain will impact the
area overnight. Rainfall totals of 1 to 3 inches are expected
with locally higher amounts. The heavy rain combined with
saturated ground will lead to potential flash flooding.
What to do
People in the watch area should keep an eye on the weather and be
prepared for immediate action should heavy rains and flooding occur
or a Flash Flood Warning be issued. Avoid low-lying areas and be
careful when approaching highway dips and underpasses.
In the past year the National Weather Service issued 126 alerts for Mercer County, including 24 severe thunderstorm warnings, 5 freeze warnings, 4 flood warnings and 3 tornado 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.
