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Elev 837 ft, 41.66 °N, 92.02 °W

Williamsburg, IA Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Williamsburg, IA
Elevation: 837ft
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Active Weather Alerts

Flood Watch
Issued: 4:53 PM Sep. 30, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE THURSDAY NIGHT...

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of northwest Illinois, including the following
areas, Carroll, Henry IL, Mercer, Rock Island and Whiteside and
Iowa, including the following areas, Benton, Cedar, Clinton, Des
Moines, Henry IA, Iowa, Jackson, Jefferson, Johnson, Jones, Keokuk,
Linn, Louisa, Muscatine, Scott, Van Buren and Washington.

* WHEN...Through late Thursday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Low-water crossings may be
flooded.

* ADDITIONAL DETAILS...
- Widespread rainfall is expected through Thursday night, with
rainfall totals reaching upwards to 2 to 3 inches. There will be
the potential for swaths of rainfall greater than 3 inches as
well in some areas. The cumulative effects of this rainfall will
result in rises along area rivers, along with the potential for
areal flooding as well. The threat for flash flooding is low.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

River Flood Warning
Issued: 4:01 PM Sep. 30, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM THURSDAY MORNING UNTIL FURTHER
NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Iowa River at Marengo.

* WHEN...From Thursday morning until further notice.

* IMPACTS...At 18.0 feet, water breaches the mill race dikes near
Middle Amana.

* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday, the stage was 13.1 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow morning and continue rising to a crest of 18.2 feet
Saturday evening.
- Flood stage is 15.0 feet.


&&



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