Check Delaware's three counties for coastal flood, wind and thunderstorm warnings now
No active warnings or watches in Delaware
Nothing is listed right now. Check your exact location for the latest.
Delaware severe weather alerts by type
What each kind of alert means and where to see it for Delaware.
Delaware tornado watches and warnings
None active in Delaware right now. A tornado watch means tornadoes are possible.
Delaware severe thunderstorm watches and warnings
None active in Delaware right now. A severe thunderstorm has winds of 58 mph or higher, hail 1 inch across or larger, or both.
Delaware flood watches and flash flood warnings
None active in Delaware right now. A flood watch means flooding is possible.
Delaware winter storm, ice storm, snow and blizzard warnings
None active in Delaware right now. Winter alerts run from a watch (possible within about 48 hours) to a warning (occurring or imminent) and an advisory for less serious but still inconvenient conditions.
Delaware heat advisories and extreme heat warnings
None active in Delaware right now. A heat advisory is the lower level and an extreme heat warning the higher level; both based on the heat index.
Delaware wind advisories and high wind warnings
None active in Delaware right now. A wind advisory is for strong winds; a high wind warning is for damaging winds.
Delaware tropical storm and hurricane alerts
None active in Delaware right now. Tropical alerts name the wind or surge threat and how soon it is expected: a watch means conditions are possible, generally within 48 hours; a warning means they are expected within about 36 hours.
Other alert types: Fire weather · Coastal · Marine
Delaware tornado history: last tornado, strongest and worst on record
From the NOAA Storm Prediction Center database, 1950 through 2025.
Delaware has 74 tornadoes on record, about 1 a year, and 21 of them since 2000. That ranks Delaware number 46 among the 50 states by count. 2 were rated EF3 or stronger. They caused 3 deaths and 66 injuries.
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 0 | 2 | 4 | 2 | 0 | 3 | 1 | 1 |
Most Delaware tornadoes have come from June through August. The single busiest month is July (30% of the total).
Counts use each tornado's starting state. Ratings before 2007 use the original Fujita scale. The database ends in 2025, so more recent tornadoes are not included.
Delaware flood map and flood warnings
No flood watch or warning is active in Delaware right now. Flood zones are mapped by FEMA street by street. FEMA's Flood Map Service Center lets you search an address and see its flood zone.
Delaware storm tracker: storms and events
No tracked events involve Delaware right now.
Common questions
Is there a tornado warning, winter storm warning or other weather warning in Delaware right now?
We do not see an active tornado, winter storm or other warning or watch for Delaware in the latest National Weather Service data. Conditions change quickly, so check your ZIP code for the latest.
When was the last tornado in Delaware, and how many have there been since 2000?
The most recent tornado in the NOAA Storm Prediction Center database for Delaware is June 30, 2025, rated EF0. The database lists 21 Delaware tornadoes since 2000 and 74 since 1950. It runs through 2025, so it does not include later tornadoes.
What was the deadliest tornado in Delaware, and what was the strongest?
By rating, the strongest in the record is April 1, 2023, rated EF3, 1 death. The deadliest is July 21, 1983, rated EF2, 2 deaths. Ratings before 2007 use the original Fujita scale.
How does Delaware rank for tornadoes among the states?
Delaware ranks 46th of 50 states by the number of tornadoes since 1950: 74 in all, about 1 a year. 2 were rated EF3 or stronger. They caused 3 deaths and 66 injuries, and the busiest year was 1992 with 6. Each tornado is counted in the state where it started.
When is tornado season in Delaware?
Most Delaware tornadoes in the record came from June through August. July is the busiest single month, with 30% of the total. Tornadoes can happen in any month.
Where do I find Delaware emergency management and National Weather Service offices?
The state agency is Delaware Emergency Management Agency (https://dema.delaware.gov/). The National Weather Service offices that cover Delaware include NWS Philadelphia/Mt Holly. Evacuation zones and orders come from your county or state emergency management office, not from this site.
Which Delaware cities and counties have their own alert pages?
This site has city pages for New Castle County (Wilmington). Each city page shows the alerts for the center of that city.
Be ready in Delaware
Official-source guides for the weather Delaware sees most.
Cities and counties in Delaware
Live alerts and local storm history for each city, grouped by the county it is in.
New Castle County: Wilmington
Alert data comes from the National Weather Service and is refreshed every 15 minutes.