Calvert County, Maryland tornadoes
19 confirmed tornadoes since NOAA records began in 1950 (the first here in 1978). Most recent: August 4, 2020, EF1. 2026 so far: 1 preliminary report preliminary
Every tornado path in the county
Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.
At a glance
Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Calvert County.
When tornadoes hit here
By month
April is the peak month, with 4 of 19 tornadoes.
By time of day
Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.
By year, 1950 to 2025
The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 1 preliminary reports.
By rating
Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.
Notable tornadoes
All 19 tornadoes, newest first
| Date | Rating | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|
| Aug 4, 2020 | EF1 | 3.01 mi | 100 yd | 0 | 0 |
| Aug 4, 2020 | EF0 | 0.82 mi | 175 yd | 0 | 0 |
| Feb 21, 2014 | EF0 | 23.63 mi | 75 yd | 0 | 0 |
| Aug 7, 2012 | EF0 | 0.69 mi | 25 yd | 0 | 0 |
| Apr 28, 2011 | EF0 | 1.71 mi | 50 yd | 0 | 0 |
| Jun 4, 2008 | EF0 | 1.64 mi | 75 yd | 0 | 0 |
| Sep 28, 2004 | F0 | 0.3 mi | 50 yd | 0 | 0 |
| Apr 28, 2002 | F1 | 5 mi | 50 yd | 0 | 0 |
| Apr 28, 2002 | F4 | 38 mi | 650 yd | 3 | 122 |
| May 22, 2001 | F0 | 1 mi | 50 yd | 0 | 0 |
| May 13, 2000 | F1 | 12 mi | 150 yd | 0 | 0 |
| Apr 21, 2000 | F1 | 1.5 mi | 70 yd | 0 | 0 |
| Jul 13, 1996 | F1 | 1.2 mi | 50 yd | 0 | 0 |
| Aug 17, 1994 | F0 | 2 mi | 50 yd | 0 | 0 |
| Jul 27, 1994 | F1 | 3 mi | 120 yd | 0 | 0 |
| May 8, 1984 | F0 | 0.3 mi | 17 yd | 0 | 0 |
| Oct 13, 1983 | F2 | 4 mi | 37 yd | 0 | 0 |
| Sep 5, 1979 | F1 | 0.5 mi | 30 yd | 0 | 1 |
| Jun 27, 1978 | F2 | 6.9 mi | 50 yd | 0 | 0 |
2026 preliminary reports not yet confirmed
| Report date | Location | Rating |
|---|---|---|
| Jun 22, 2026 | 4 NNE Sandgates | Not yet rated |
Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.
Nearby counties
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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 12, 2026.