Warren County, New Jersey severe weather history spans 467 recorded events between 1956 and 2025. The dominant hazard is thunderstorm wind, accounting for 64.7% of all recorded events. It ranks #993 nationally and #13 in New Jersey.
467
Recorded events
0
Direct deaths
21
Direct injuries
$41.2M
Property damage
The record
What the Warren County, New Jersey severe weather history record shows
Across the archive, Warren County, New Jersey severe weather history averages 6.8 recorded events a year. The busiest stretch on record is the 2010s, with 159 events logged in that decade alone. Roughly 16 events fall before 1990 and 451 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is flood, with $33.2M in reported property damage. In total, 8 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Warren County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 302 | 0 | $565K | 74 | 1987–2025 |
| Flash Flood | 56 | 0 | $7.2M | 0 | 1996–2025 |
| Heavy Rain | 38 | 0 | $0 | 0 | 1997–2017 |
| Hail | 33 | 0 | $0 | 1.75 | 1956–2024 |
| Flood | 18 | 0 | $33.2M | 0 | 2006–2017 |
| Lightning | 13 | 0 | $21K | 0 | 2000–2019 |
| Tornado | 6 | 0 | $250K | F2 | 1957–2016 |
| Wildfire | 1 | 0 | $0 | 0 | 2002–2002 |
Decade by decade
Warren County, New Jersey severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
6 mapped tornado paths intersect this county: 6 touched down inside it and 0 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1981-10-26 | EF2 | 0 | 0 | 0.8 mi | Touched down here |
| 1994-06-29 | EF1 | 0 | 0 | 14.0 mi | Touched down here |
| 1957-11-19 | EF1 | 0 | 0 | 0.8 mi | Touched down here |
| 2016-07-14 | EF0 | 0 | 0 | 2.8 mi | Touched down here |
| 1987-07-26 | EF0 | 0 | 0 | 0.2 mi | Touched down here |
| 1962-07-21 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
Significant events
Deadliest events on record in Warren County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| May 24, 2009 | Lightning | HAINESBURG | 0 | 4 | $0 |
| Jun 14, 2008 | Lightning | PHILLIPSBURG | 0 | 4 | $0 |
| Jul 21, 2006 | Lightning | BLAIRSTOWN | 0 | 3 | $0 |
| Jul 18, 1997 | Thunderstorm Wind | PHILLIPSBURG | 0 | 3 | $0 |
| Jul 15, 2016 | Lightning | BUTTZVILLE | 0 | 1 | $0 |
| Jun 6, 2005 | Lightning | TOWNSBURY | 0 | 1 | $0 |
| Aug 4, 2003 | Flash Flood | NORTHWEST PORTION | 0 | 1 | $0 |
| May 28, 2003 | Lightning | WASHINGTON | 0 | 1 | $10K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Both the Musconetcong and Paulinskill Rivers flooded. The Delaware Water Gap National Recreation Area was closed through Labor Day Weekend (September 5th). The Delaware River at Tocks Island had moderate flooding and was above its 21 foot flood stage from 1018 p.m. EDT on the 28th through 742 p.m. EDT on the 29th. It crested at 23.21 feet at 1245 p.m. EDT on the 29th. Farther downstream, the Delaware River at Phillipsburg had minor flooding and was above its 22 foot flood stage from 843 p.m. EDT on the 28th through 1210 a.m. EDT on the 30th. It crested at 25.15 feet at 5 a.m. EDT on the 29th. Farther downstream, the Delaware River at Reigelsville also had minor flooding and was above its 22 foot flood stage from 922 p.m. EDT on the 28th through 219 a.m. EDT on the 30th. It crested at 24.56 feet at 630 a.m. EDT on the 29th.||Event rainfall totals included 7.15 inches in Mansfield Township, 6.82 inches in White Township, 6.65 inches in Greenwich Township, 6.56 inches in Blairstown Township and 6.56 inches in Franklin Township.
The heavy rain caused several creeks and streams to flood in Warren County and forced the closure of eighteen major roadways. Even westbound Interstate 80 was closed in Knowlton Township because of a rockslide. There was one minor accident when this occurred. In Blairstown both the Paulins Kill and Blair Creek flooded. There were a few evacuations near the flooded creek and one home suffered flood damage. Paulins Kill overflowed a bridge in the township and forced the closure of State Route 94. Roads were also closed in White, Hardwick, Harmony, Pohatcong and Greenwich Townships. Flooding was also reported along the Pohatcong Creek and the Musconetcong River.|Precipitation totals included 5.74 inches in Stewartsville, 4.80 inches in Hackettstown, 4.61 inches in Hope, 4.51 inches in Pequest, 4.24 at Phillipsburg/Easton Bridge, and 3.41 inches in Belvidere.|
Thunderstorms with heavy downpours caused flash flooding along smaller streams and roadways in eastern Warren County mainly in Allamuchy, Franklin, Hackettstown, Independence and Mansfield Townships. In Franklin Township, residents of the Pohatcong Creek Mobile Home Adult Community were rescued by boat after that creek flooded. Schools were closed in Mansfield Township. Homes along State Route 57 were flooded. In Hackettstown, the Trout Brook flooded U.S. Route 46 and Stiger Street. A half dozen roads were closed in the town and at least three cars were damaged. Some basements were also flooded. Both the Pequest and Musconetcong Rivers flooded again. The flooding rains also damaged the apple, corn and sod crops. Event precipitation totals included 4.91 inches in Blairstown, 4.77 inches in Hackettstown, 4.47 inches in Allamuchy and 4.21 inches in Mansfield.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
110,849
Population (ACS)
$347K
Median home value
27
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Aug 11, 2023 | Severe Storm | SEVERE STORM AND FLOODING | DR |
| Sep 5, 2021 | Hurricane | REMNANTS OF HURRICANE IDA | DR |
| Sep 2, 2021 | Hurricane | REMNANTS OF HURRICANE IDA | EM |
| Apr 28, 2021 | Snowstorm | SEVERE WINTER STORM AND SNOWSTORM | DR |
| Mar 25, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
Quick answers
Frequently asked
How many severe weather events have been recorded in Warren County, New Jersey?
467 events are on record between 1956 and 2025, causing 0 direct deaths and $41.2M in property damage.
What is the most common severe weather hazard in Warren County?
Thunderstorm Wind, with 302 recorded events — 64.7% of everything in the archive for this county.
How many tornadoes have crossed Warren County?
6 mapped tornado paths intersect the county boundary; 6 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Warren County?
27 federal disaster declarations from FEMA include Warren County, each tied to a specific incident period.
How risky is Warren County compared with the rest of the country?
FEMA's National Risk Index rates Warren County as relatively low risk, placing it in the 81 percentile of its state for expected annual loss.
Where does the Warren County, New Jersey severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Union County 435
- Sussex County 471
- Somerset County 619
- Salem County 281
- Passaic County 394
- Ocean County 792
Cite this page
“Warren County, New Jersey.” Severe Weather History. severeweatherhistory.com/county/new-jersey/warren-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.