KinwarnMaryland tornado warnings
The National Weather Service issued 256 tornado warnings, 2,943 severe thunderstorm warnings and 453 flash flood warnings for Maryland from 2016 to 2025, about 26, 294 and 45 a year. That ranks 27th of 52 states and territories for tornado warnings. Baltimore County had the most of any county: 43 tornado warnings.
Maryland warnings and radar right now
Checking the National Weather Service for Maryland…
Maryland counties ranked by tornado warnings
Warnings that listed each county, 2016 to 2025, and tornadoes recorded in the county since 1950. A warning can list several counties, so the county numbers add up to more than the state total.
| County | Tornado warnings | Severe thunderstorm | Flash flood | Tornadoes since 1950 |
|---|---|---|---|---|
| Baltimore County | 43 | 419 | 109 | 31 |
| Prince George's County | 30 | 548 | 74 | 28 |
| Harford County | 26 | 291 | 40 | 26 |
| Carroll County | 26 | 281 | 17 | 28 |
| Saint Mary's County | 26 | 234 | 20 | 34 |
| Montgomery County | 25 | 496 | 84 | 29 |
| Charles County | 23 | 354 | 18 | 32 |
| Howard County | 22 | 294 | 37 | 20 |
| Anne Arundel County | 19 | 405 | 39 | 29 |
| Queen Anne's County | 19 | 285 | 31 | 13 |
| Cecil County | 19 | 237 | 28 | 19 |
| Kent County | 18 | 238 | 23 | 5 |
| Wicomico County | 18 | 142 | 23 | 11 |
| Worcester County | 17 | 115 | 15 | 15 |
| Frederick County | 16 | 399 | 29 | 38 |
| Caroline County | 14 | 295 | 31 | 9 |
| Calvert County | 13 | 248 | 13 | 20 |
| Dorchester County | 13 | 140 | 14 | 14 |
| Washington County | 12 | 339 | 17 | 15 |
| Somerset County | 11 | 110 | 12 | 6 |
| Talbot County | 10 | 217 | 21 | 4 |
| Allegany County | 8 | 178 | 18 | 9 |
| City of Baltimore | 7 | 185 | 63 | 6 |
| Garrett County | 1 | 111 | 22 | 12 |
Maryland warnings by year
Each warning counts once for the state, however many counties it covered. 2008 is the first full year the National Weather Service drew an outline around every warning.
Tornadoes since 1950
430 tornadoes have been recorded in Maryland since 1950, 2 of them rated 4 or 5 on the F or EF scale. They killed 9 people and injured 325. July had the most (86).
| Year | Tornado | Severe thunderstorm | Flash flood |
|---|---|---|---|
| 2026 to Oct 19 | 42 | 366 | 43 |
| 2025 | 28 | 287 | 67 |
| 2024 | 37 | 212 | 45 |
| 2023 | 12 | 298 | 36 |
| 2022 | 27 | 274 | 42 |
| 2021 | 47 | 360 | 42 |
| 2020 | 43 | 354 | 60 |
| 2019 | 29 | 462 | 29 |
| 2018 | 9 | 194 | 63 |
| 2017 | 10 | 261 | 44 |
| 2016 | 14 | 241 | 25 |
| 2015 | 17 | 192 | 52 |
| 2014 | 16 | 194 | 41 |
| 2013 | 22 | 167 | 49 |
| 2012 | 36 | 263 | 50 |
| 2011 | 57 | 303 | 110 |
| 2010 | 31 | 218 | 34 |
| 2009 | 16 | 196 | 41 |
| 2008 | 21 | 299 | 13 |
What stands out in Maryland
2011 was the busiest year for tornado warnings in Maryland since 2008, with 57 tornado warnings, and it was also the busiest year for flash flood warnings (110).
Since 2008, 15 flash flood warnings for Maryland were raised to a flash flood emergency for at least part of the warned area: the Weather Service’s rarest warning, used when a severe threat to life is happening or about to happen.
29 severe thunderstorm warnings for Maryland carried the “destructive” tag (winds of 80 mph or more, or hail 2.75 inches or larger) since the tag started in August 2021. Only those severe thunderstorm warnings set off Wireless Emergency Alerts on phones.
2 tornadoes in Maryland since 1950 were rated F4 or EF4, the strongest recorded there. The most recent was on April 28, 2002.
National Weather Service warnings from the Iowa Environmental Mesonet archive through October 19, 2026; tornado ratings from the Storm Prediction Center and NOAA Storm Events.
States next to Maryland
Tornado warnings for each neighboring state, 2016 to 2025.
- Virginia 621 tornado warnings
- Pennsylvania 445 tornado warnings
- West Virginia 162 tornado warnings
- Delaware 55 tornado warnings
- District of Columbia 6 tornado warnings
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Maryland tornado warnings: questions people ask
How many tornado warnings does Maryland get a year?
About 26 a year: the National Weather Service issued 256 tornado warnings for Maryland from 2016 to 2025, 27th of 52 states and territories.
Which Maryland county gets the most tornado warnings?
Baltimore County has the most: 43 tornado warnings listed it from 2016 to 2025, ahead of Prince George's County with 30. A warning can list several counties, so county counts add up to more than the state total.
Which Maryland city gets the most tornado warnings?
Columbia has the most among cities and towns with 10,000 people or more: the outlines of 10 tornado warnings covered its center from 2016 to 2025.
When is tornado season in Maryland?
July and June: 40% of the 430 tornadoes recorded in Maryland since 1950 came in those two months. Tornadoes have struck Maryland in every month of the year.
About these numbers
Counts are National Weather Service warnings that listed a Maryland county, through October 19, 2026. How Kinwarn counts · Maryland data (CSV)
Cite: Kinwarn. “Maryland tornado warnings.” kinwarn.com/maryland. National Weather Service data through October 19, 2026.
Sources: IEM warning archive · NWS 2007 outlines · SPC tornado database · Census places · Census population estimates · NWS tornado alerts