Lehigh County weather alerts
There are no active weather alerts for Lehigh County, PA right now.
Since 2016 the National Weather Service has issued about 1,278 alerts that included Lehigh County, roughly 128 a year. The most common is the severe thunderstorm warning (258 from 2016 to 2025). The last tornado warning was issued on July 2, 2023. 16 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 Lehigh County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Bucks County, Carbon County, Northampton County, Schuylkill County.
Lehigh County alert history
Alert events that included Lehigh County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 258 | 35 | October 16, 2026 |
| Flood Advisory | 211 | 0 | March 23, 2024 |
| Severe Thunderstorm Watch | 106 | 16 | October 16, 2026 |
| Flood Watch | 91 | 6 | August 27, 2026 |
| Winter Weather Advisory | 82 | 4 | March 3, 2026 |
| Flood Warning | 75 | 1 | July 29, 2026 |
| Wind Advisory | 69 | 4 | September 25, 2026 |
| Flash Flood Warning | 67 | 7 | August 7, 2026 |
| Dense Fog Advisory | 54 | 9 | November 6, 2026 |
| Frost Advisory | 39 | 2 | October 19, 2026 |
| Heat Advisory | 35 | 5 | August 6, 2026 |
| Snow Squall Warning | 26 | 3 | January 1, 2026 |
| Freeze Warning | 25 | 3 | October 24, 2026 |
| Winter Storm Warning | 19 | 2 | February 22, 2026 |
| Winter Storm Watch | 18 | 2 | February 22, 2026 |
| Freeze Watch | 14 | 3 | October 24, 2026 |
| Tornado Watch | 14 | 4 | November 12, 2026 |
| Red Flag Warning | 12 | 0 | November 16, 2024 |
| Tornado Warning | 11 | 0 | July 2, 2023 |
| Extreme Heat Watch | 10 | 1 | July 1, 2026 |
| Fire Weather Watch | 10 | 0 | November 16, 2024 |
| High Wind Warning | 8 | 0 | December 19, 2025 |
| Extreme Heat Warning | 7 | 1 | July 1, 2026 |
| High Wind Watch | 7 | 0 | November 6, 2025 |
| Cold Weather Advisory | 7 | 4 | February 8, 2026 |
| Blizzard Warning | 2 | 0 | March 14, 2017 |
| Ice Storm Warning | 1 | 0 | February 15, 2021 |
| Extreme Cold Watch | 0 | 1 | February 7, 2026 |
| Extreme Cold Warning | 0 | 1 | February 7, 2026 |
Tornado history in Lehigh County
16 tornadoes have been recorded in Lehigh County since 1950, injuring 4 people. That ranks 25 of 67 counties in Pennsylvania. The most recent was on August 7, 2023 (rated EF1).
Strongest tornadoes in Lehigh County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 5, 1950 | F2 | Lehigh County | 12.9 mi | 10 yd | 0 | 2 |
| July 5, 1984 | F2 | Berks County | 8 mi | 300 yd | 0 | 0 |
| July 5, 1984 | F2 | Berks County | 5 mi | 300 yd | 0 | 0 |
| August 11, 1983 | F1 | Lehigh County | 11 mi | 150 yd | 0 | 2 |
| March 21, 1976 | F1 | Lehigh County | 4.6 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 7, 2023 | EF1 | Lehigh County | 0.3 mi | 160 yd | 0 | 0 |
| July 29, 2021 | EF1 | Lehigh County | 1.2 mi | 75 yd | 0 | 0 |
| July 29, 2021 | EF1 | Berks County | 2.9 mi | 90 yd | 0 | 0 |
| May 29, 2019 | EF0 | Lehigh County | 2.3 mi | 50 yd | 0 | 0 |
| July 22, 2018 | EF0 | Lehigh County | 0.8 mi | 20 yd | 0 | 0 |
About Lehigh County
- Population: 385,655 (2024 estimate)
- State: Pennsylvania
- NOAA Weather Radio SAME code: 042077 (how to use it)
- Cities: Allentown