Lake County weather alerts
There are no active weather alerts for Lake County, IN right now.
Since 2016 the National Weather Service has issued about 914 alerts that included Lake County, roughly 91 a year. The most common is the severe thunderstorm warning (147 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 41 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Lake County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Cook County, Kankakee County, Newton County, Will County.
Lake County alert history
Alert events that included Lake County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 147 | 36 | August 12, 2026 |
| Flood Advisory | 126 | 35 | November 13, 2026 |
| Dense Fog Advisory | 88 | 8 | September 28, 2026 |
| Winter Weather Advisory | 82 | 5 | November 13, 2026 |
| Flood Warning | 81 | 22 | September 20, 2026 |
| Wind Advisory | 77 | 5 | April 27, 2026 |
| Severe Thunderstorm Watch | 54 | 19 | August 21, 2026 |
| Flood Watch | 37 | 15 | October 1, 2026 |
| Frost Advisory | 27 | 3 | October 18, 2026 |
| Flash Flood Warning | 22 | 12 | August 12, 2026 |
| Tornado Watch | 20 | 3 | June 11, 2026 |
| Heat Advisory | 19 | 5 | September 4, 2026 |
| Winter Storm Watch | 19 | 1 | January 30, 2026 |
| Tornado Warning | 19 | 11 | August 11, 2026 |
| Winter Storm Warning | 18 | 2 | January 31, 2026 |
| Cold Weather Advisory | 16 | 3 | January 26, 2026 |
| Freeze Warning | 12 | 1 | April 20, 2026 |
| High Wind Warning | 10 | 2 | March 15, 2026 |
| Red Flag Warning | 7 | 0 | March 14, 2025 |
| High Wind Watch | 6 | 2 | March 15, 2026 |
| Fire Weather Watch | 5 | 0 | March 14, 2025 |
| Extreme Heat Watch | 4 | 0 | August 27, 2024 |
| Extreme Heat Warning | 4 | 1 | June 30, 2026 |
| Freeze Watch | 4 | 1 | April 20, 2026 |
| Extreme Cold Warning | 2 | 0 | January 14, 2024 |
| Snow Squall Warning | 2 | 1 | January 14, 2026 |
| Dust Storm Warning | 2 | 0 | May 16, 2025 |
| Blizzard Warning | 1 | 0 | February 24, 2016 |
| Lake Effect Snow Warning | 1 | 0 | March 14, 2017 |
| Ice Storm Warning | 1 | 0 | February 12, 2019 |
| Extreme Cold Watch | 1 | 0 | January 30, 2019 |
Tornado history in Lake County
41 tornadoes have been recorded in Lake County since 1950, injuring 24 people. That ranks 3 of 92 counties in Indiana. The most recent was on March 19, 2025 (rated EF0).
Strongest tornadoes in Lake County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 20, 1974 | F3 | Lake County | 4.5 mi | 150 yd | 0 | 5 |
| November 12, 1965 | F3 | Lake County | 4.1 mi | 40 yd | 0 | 14 |
| October 24, 1967 | F3 | Porter County | 0.1 mi | 10 yd | 0 | 0 |
| July 20, 1962 | F2 | Lake County | 14.9 mi | 10 yd | 0 | 0 |
| June 30, 1977 | F2 | Lake County | 6.8 mi | 300 yd | 0 | 1 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 19, 2025 | EF0 | Lake County | 1.8 mi | 50 yd | 0 | 0 |
| March 19, 2025 | EF1 | Lake County | 0.7 mi | 50 yd | 0 | 1 |
| March 19, 2025 | EF0 | Lake County | 0.4 mi | 50 yd | 0 | 0 |
| March 19, 2025 | EF0 | Lake County | 1.9 mi | 50 yd | 0 | 0 |
| March 15, 2025 | EF0 | Lake County | 4.9 mi | 200 yd | 0 | 0 |
About Lake County
- Population: 502,955 (2024 estimate)
- State: Indiana
- NOAA Weather Radio SAME code: 018089 (how to use it)