United StatesDelawareNWS, FEMA, USGSArchive to October 13, 2026
Delaware: warnings and declarations in 2026
The National Weather Service issued 147 warnings for Delaware in 2026 through September, 57% above the average of 94 for those months in 2008-2025. The most frequent was the severe thunderstorm warning (94). FEMA has made 1 declaration for Delaware this year.
Latest notices in Delaware
NWS Mount HollyWarningOctober 12, 2026
Flood Warning: New Castle, DE
Expired 10:00 p.m. EDT, October 12, 2026
NWS Mount HollyWarningSeptember 25, 2026
Coastal Flood Warning: New Castle and Salem, DE and NJ
Expired 3:00 a.m. EDT, September 27, 2026
NWS Mount HollyWarningSeptember 25, 2026
High Wind Warning: Delaware Beaches, Eastern Monmouth, Atlantic Coastal Cape May and 2 more, DE and NJ
Expired 6:00 a.m. EDT, September 27, 2026
NWS Mount HollyWarningSeptember 3, 2026
Flood Warning: New Castle, Burlington, Camden and 7 more, DE and NJ
Expired 9:15 a.m. EDT, September 3, 2026
NWS Mount HollyWarningSeptember 3, 2026
Flash Flood Warning: New Castle, Burlington, Camden and 6 more, DE and NJ
Expired 5:30 a.m. EDT, September 3, 2026
NWS Mount HollyWarningSeptember 3, 2026
Severe Thunderstorm Warning: Kent, Caroline, Kent and 2 more, DE and MD
Expired 12:45 a.m. EDT, September 3, 2026
NWS Mount HollyWarningSeptember 2, 2026
Severe Thunderstorm Warning: Kent, Sussex and Caroline, DE and MD
Expired 3:45 p.m. EDT, September 2, 2026
NWS Mount HollyWarningSeptember 2, 2026
Severe Thunderstorm Warning: Kent and New Castle, DE
Expired 2:15 p.m. EDT, September 2, 2026
Which warnings, watches and advisories does Delaware get?
| Product | Yearly average 2008-2025 | 2025 | 2026 through September | Average, same months |
|---|---|---|---|---|
| Severe Thunderstorm Warning | 56 | 63 | 94 | 54 |
| Flood Advisory | 40 | 0 | 0 | 38 |
| Coastal Flood Advisory | 26 | 22 | 19 | 18 |
| Flood Warning | 17 | 5 | 2 | 11 |
| Flash Flood Warning | 12 | 23 | 21 | 12 |
| Wind Advisory | 11 | 19 | 4 | 7 |
| Severe Thunderstorm Watch | 11 | 12 | 22 | 11 |
| Winter Weather Advisory | 8 | 9 | 2 | 7 |
| Dense Fog Advisory | 8 | 5 | 10 | 5 |
| Heat Advisory | 6 | 9 | 9 | 6 |
| Flood Watch | 5 | 9 | 10 | 4 |
| Flash Flood Watch | 5 | 0 | 0 | 5 |
| Tornado Warning | 4 | 8 | 11 | 4 |
| Coastal Flood Warning | 4 | 2 | 2 | 3 |
| Frost Advisory | 4 | 6 | 0 | 2 |
| Coastal Flood Watch | 3 | 2 | 2 | 2 |
| Winter Storm Warning | 3 | 2 | 2 | 3 |
| Extreme Heat Warning | 2 | 2 | 2 | 2 |
| Winter Storm Watch | 2 | 3 | 2 | 2 |
| Extreme Heat Watch | 2 | 2 | 2 | 2 |
| Tornado Watch | 2 | 1 | 5 | 2 |
| High Wind Warning | 2 | 3 | 2 | 1 |
| Red Flag Warning | 2 | 1 | 0 | 2 |
| Freeze Warning | 2 | 2 | 3 | 1 |
| High Surf Advisory | 2 | 1 | 2 | 1 |
| High Wind Watch | 1 | 2 | 2 | 1 |
| Freeze Watch | 1 | 1 | 3 | 1 |
| Fire Weather Watch | 1 | 1 | 0 | 1 |
| Cold Weather Advisory | 1 | 1 | 3 | 1 |
| Snow Squall Warning (since 2018) | 1 | 0 | 6 | 1 |
| Blizzard Warning | 0 | 0 | 1 | 0 |
| Extreme Cold Warning | 0 | 0 | 1 | 0 |
| Extreme Cold Watch | 0 | 0 | 1 | 0 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 13, 2026.
How many warnings does Delaware get each year?
Every NWS warning (VTEC significance W) that covered part of Delaware. 2026 is drawn as an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 148 |
| 2025 | 111 |
| 2024 | 98 |
| 2023 | 132 |
| 2022 | 67 |
| 2021 | 115 |
| 2020 | 163 |
| 2019 | 134 |
| 2018 | 109 |
| 2017 | 101 |
| 2016 | 100 |
| 2015 | 60 |
| 2014 | 74 |
| 2013 | 99 |
| 2012 | 92 |
| 2011 | 145 |
| 2010 | 105 |
| 2009 | 96 |
| 2008 | 85 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 13, 2026.
When in the year?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 13, 2026.
FEMA declarations for Delaware in 2026
FEMAMajor disasterMay 29, 2026
DR-4916-DE: Winter Storm, severe winter storm
2 designated areas
Source: FEMA, OpenFEMA Disaster Declarations Summaries. Data as of October 11, 2026.
Questions about Delaware's warnings
How many weather warnings does Delaware get a year?
An average of 105 NWS warnings a year in 2008-2025, and 111 in 2025.
What is the most common warning in Delaware?
The severe thunderstorm warning: 56 a year on average in 2008-2025.
Where do the live warnings come from?
From the National Weather Service's alert feed (api.weather.gov), which AreaZine reads every few minutes. For a warning in force now, the NWS office page and NOAA Weather Radio are the first source; phones receive only the most dangerous warnings as Wireless Emergency Alerts.