Indiana alerts

Allen County, Indiana weather alerts

3 National Weather Service alerts are in force for Allen County: 2 flood warnings and a flood watch.

Checked Sun, Sep 20, 2026, 4:38 PM EDT. Times are Eastern Daylight Time.

Allen County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Allen County, Indiana. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Allen County, Indiana Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force3

Every product in force for Allen County, worst first, with its full text.

Flood Warning

Severe

Flood Warning issued September 20 at 4:09PM EDT until September 24 at 10:24PM EDT by NWS Northern Indiana

Issued Until 4 days left

Areas Allen, IN

Full text

...The Flood Warning is extended for the following rivers in Indiana...Ohio... Saint Marys River at St. Mary's River near Fort Wayne affecting Allen IN County. Saint Marys River near Decatur affecting Adams, Allen IN and Van Wert Counties. ...The Flood Warning continues for the following rivers in Indiana... Wabash River near Bluffton IN affecting Wells County. Wabash River near Linn Grove affecting Adams and Wells Counties. Kankakee River at Davis affecting La Porte, Starke and St. Joseph Counties. For the Wabash River...including Linn Grove, Bluffton IN...Minor flooding is forecast. For the Kankakee River...including Davis...Minor flooding is forecast. For the Saint Marys River...including Decatur, St. Mary's River near Fort Wayne...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Saint Marys River at St. Mary's River near Fort Wayne. * WHEN...Until Thursday evening. * IMPACTS...At 17.0 feet, Some residents in the Winchester Road area may need to be evacuated. Property damage begins in some areas at this level. * ADDITIONAL DETAILS... - At 3:45 PM EDT Sunday the stage was 15.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:45 PM EDT Sunday was 16.0 feet. - Forecast...The river is expected to rise to a crest of 16.6 feet tomorrow morning. It will then fall below flood stage late Wednesday evening. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

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. Detailed river forecasts and additional information can be found at www.weather.gov/iwx under Rivers and Lakes. This statement will be updated within the next 12 to 24 hours.

NWS Northern IndianaShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 4:09PM EDT until September 25 at 10:24AM EDT by NWS Northern Indiana

Issued Until 5 days left

Areas Adams, IN; Allen, IN; Van Wert, OH

Full text

...The Flood Warning is extended for the following rivers in Indiana...Ohio... Saint Marys River at St. Mary's River near Fort Wayne affecting Allen IN County. Saint Marys River near Decatur affecting Adams, Allen IN and Van Wert Counties. ...The Flood Warning continues for the following rivers in Indiana... Wabash River near Bluffton IN affecting Wells County. Wabash River near Linn Grove affecting Adams and Wells Counties. Kankakee River at Davis affecting La Porte, Starke and St. Joseph Counties. For the Wabash River...including Linn Grove, Bluffton IN...Minor flooding is forecast. For the Kankakee River...including Davis...Minor flooding is forecast. For the Saint Marys River...including Decatur, St. Mary's River near Fort Wayne...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Saint Marys River near Decatur. * WHEN...Until Friday morning. * IMPACTS...At 23.5 feet, Many east side city streets and county roads are flooded. Evacuation of east side residents near Bellmont High School becomes necessary. * ADDITIONAL DETAILS... - At 3:30 PM EDT Sunday the stage was 23.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:30 PM EDT Sunday was 23.5 feet. - Forecast...The river is expected to fall below flood stage late Thursday morning and continue falling to 15.1 feet early Friday afternoon. - Flood stage is 17.0 feet. - http://www.weather.gov/safety/flood

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. Detailed river forecasts and additional information can be found at www.weather.gov/iwx under Rivers and Lakes. This statement will be updated within the next 12 to 24 hours.

NWS Northern IndianaShare this alert

Flood Watch

Severe

Flood Watch issued September 20 at 1:58PM EDT until September 21 at 2:00AM EDT by NWS Northern Indiana

Issued Until 9 hr 21 min left

Areas Whitley, IN; Allen, IN; Miami, IN; Wabash, IN; Huntington, IN; Wells, IN; Adams, IN; Grant, IN; Blackford, IN; Jay, IN; Paulding, OH; Van Wert, OH

Full text

FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT

What to do

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

NWS Northern IndianaShare this alert

The past year in Allen County

In the past year the National Weather Service issued 129 alerts for Allen County, including 28 severe thunderstorm warnings, 11 flood warnings, 3 freeze warnings and 2 winter storm warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning28Sep 15, 2026
Flood Warning11Sep 18, 2026
Freeze Warning3May 2, 2026
Winter Storm Warning2Jan 24, 2026
Extreme Heat Warning1Jun 29, 2026
High Wind Warning1Mar 13, 2026
Severe Thunderstorm Watch19Sep 5, 2026
Flood Watch10Sep 20, 2026
Freeze Watch2May 2, 2026
Winter Storm Watch2Jan 24, 2026
Extreme Heat Watch1Jun 29, 2026
High Wind Watch1Mar 13, 2026
Tornado Watch1Jun 11, 2026
Flood Advisory11Sep 17, 2026
Dense Fog Advisory10Aug 7, 2026
Wind Advisory8Jun 17, 2026
Frost Advisory6May 12, 2026
Heat Advisory6Sep 1, 2026
Cold Weather Advisory5Feb 1, 2026
Winter Weather Advisory1Dec 1, 2025

Warnings issued

  1. Flood Warning
  2. Flood Warning
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Flood Warning
  6. Flood Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Warning
  16. Extreme Heat Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Freeze Warning
  22. Freeze Warning
  23. Flood Warning
  24. Severe Thunderstorm Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Warning
  27. Flood Warning
  28. Flood Warning
  29. Flood Warning
  30. Flood Warning
  31. Flood Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Severe Thunderstorm Warning
  38. Severe Thunderstorm Warning
  39. High Wind Warning
  40. Flood Warning
  41. Severe Thunderstorm Warning
  42. Severe Thunderstorm Warning
  43. Severe Thunderstorm Warning
  44. Winter Storm Warning
  45. Winter Storm Warning
  46. Freeze Warning
Every alert, most recent first
  1. Flood Watch
  2. Flood Watch
  3. Flood Warning
  4. Flood Warning
  5. Flood Advisory
  6. Flood Advisory
  7. Flood Watch
  8. Flood Advisory
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Watch
  12. Heat Advisory
  13. Flood Warning
  14. Flood Warning
  15. Severe Thunderstorm Warning
  16. Severe Thunderstorm Watch
  17. Flood Watch
  18. Flood Advisory
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Watch
  23. Flood Watch
  24. Severe Thunderstorm Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Warning
  27. Severe Thunderstorm Warning
  28. Severe Thunderstorm Watch
  29. Dense Fog Advisory
  30. Flood Advisory
  31. Flood Advisory
  32. Flood Watch
  33. Severe Thunderstorm Watch
  34. Severe Thunderstorm Watch
  35. Heat Advisory
  36. Heat Advisory
  37. Flood Advisory
  38. Heat Advisory
  39. Severe Thunderstorm Warning
  40. Extreme Heat Watch

The 40 most recent of 129.

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 Allen County, with what is in force in each.

What this means

Warning
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.