Lewis and Clark County weather alerts
There are no active weather alerts for Lewis and Clark County, MT right now.
Since 2016 the National Weather Service has issued about 618 alerts that included Lewis and Clark County, roughly 62 a year. The most common is the winter weather advisory (177 from 2016 to 2025). No tornado warnings were recorded here in that period. 6 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 Lewis and Clark County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Flathead County, Broadwater County, Meagher County, Jefferson County.
Lewis and Clark County alert history
Alert events that included Lewis and Clark County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 177 | 0 | April 29, 2022 |
| Severe Thunderstorm Warning | 91 | 23 | September 7, 2026 |
| Flood Advisory | 67 | 5 | July 23, 2026 |
| High Wind Warning | 53 | 0 | July 18, 2022 |
| High Wind Watch | 41 | 0 | July 18, 2022 |
| Winter Storm Watch | 40 | 0 | April 29, 2022 |
| Winter Storm Warning | 39 | 0 | April 29, 2022 |
| Severe Thunderstorm Watch | 21 | 6 | September 6, 2026 |
| Cold Weather Advisory | 20 | 0 | March 9, 2022 |
| Flood Watch | 15 | 0 | August 24, 2022 |
| Flood Warning | 14 | 0 | June 9, 2023 |
| Flash Flood Warning | 11 | 3 | July 23, 2026 |
| Snow Squall Warning | 10 | 0 | December 27, 2025 |
| Dense Fog Advisory | 8 | 0 | March 3, 2022 |
| Heat Advisory | 7 | 0 | September 7, 2022 |
| Extreme Cold Warning | 3 | 0 | February 21, 2022 |
| Extreme Heat Watch | 1 | 0 | July 15, 2017 |
Tornado history in Lewis and Clark County
6 tornadoes have been recorded in Lewis and Clark County since 1950. That ranks 28 of 56 counties in Montana. The most recent was on June 27, 1997 (rated F0).
Strongest tornadoes in Lewis and Clark County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 22, 1960 | F0 | Lewis and Clark County | 1 mi | 10 yd | 0 | 0 |
| June 7, 1953 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| July 9, 1992 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| June 11, 1993 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| June 21, 1993 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 27, 1997 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| June 21, 1993 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| June 11, 1993 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| July 9, 1992 | F0 | Lewis and Clark County | 0.1 mi | 10 yd | 0 | 0 |
| July 22, 1960 | F0 | Lewis and Clark County | 1 mi | 10 yd | 0 | 0 |
About Lewis and Clark County
- Population: 75,129 (2024 estimate)
- State: Montana
- NOAA Weather Radio SAME code: 030049 (how to use it)