Lycoming County, Pennsylvania severe weather history spans 631 recorded events between 1956 and 2026. The dominant hazard is thunderstorm wind, accounting for 68.5% of all recorded events. It ranks #510 nationally and #20 in Pennsylvania.
631
Recorded events
10
Direct deaths
26
Direct injuries
$70.0M
Property damage
The record
What the Lycoming County, Pennsylvania severe weather history record shows
Across the archive, Lycoming County, Pennsylvania severe weather history averages 9.0 recorded events a year. The busiest stretch on record is the 2010s, with 155 events logged in that decade alone. Roughly 70 events fall before 1990 and 561 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The deadliest hazard in the Lycoming County, Pennsylvania record is flash flood, responsible for 6 direct deaths. The costliest is tornado, with $28.5M in reported property damage. In total, 7 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Lycoming County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 432 | 2 | $3.0M | 87 | 1966–2026 |
| Hail | 112 | 0 | $350K | 3 | 1956–2024 |
| Flash Flood | 38 | 6 | $27.2M | 0 | 1996–2025 |
| Tornado | 29 | 2 | $28.5M | F3 | 1966–2022 |
| Flood | 17 | 0 | $11.0M | 0 | 2008–2025 |
| Funnel Cloud | 2 | 0 | $0 | 0 | 2018–2024 |
| Lightning | 1 | 0 | $10K | 0 | 2024–2024 |
Decade by decade
Lycoming County, Pennsylvania severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
30 mapped tornado paths intersect this county: 27 touched down inside it and 3 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1985-05-31 | EF4 | 0 | 0 | 69.0 mi | Crossed in |
| 1985-05-31 | EF3 | 6 | 60 | 19.0 mi | Touched down here |
| 1976-07-29 | EF3 | 0 | 0 | 25.0 mi | Touched down here |
| 2018-10-02 | EF2 | 0 | 0 | 2.2 mi | Touched down here |
| 1966-08-16 | EF2 | 0 | 1 | 4.5 mi | Touched down here |
| 2022-03-31 | EF1 | 0 | 1 | 9.1 mi | Crossed in |
| 2015-07-09 | EF1 | 0 | 0 | 0.9 mi | Touched down here |
| 2011-05-26 | EF1 | 0 | 0 | 5.6 mi | Touched down here |
| 2011-05-26 | EF1 | 0 | 0 | 2.0 mi | Touched down here |
| 2005-06-06 | EF1 | 0 | 0 | 1.5 mi | Touched down here |
Significant events
Deadliest events on record in Lycoming County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jan 19, 1996 | Flash Flood | COUNTYWIDE | 6 | 0 | $0 |
| Jun 1, 1985 | Tornado | 2 | 20 | $25.0M | |
| Sep 22, 2010 | Thunderstorm Wind | MUNCY | 2 | 0 | $15K |
| Jun 30, 1998 | Thunderstorm Wind | JERSEY SHR | 0 | 2 | $0 |
| Mar 31, 2022 | Tornado | CLARKSTOWN | 0 | 1 | $300K |
| Aug 13, 2021 | Thunderstorm Wind | QUENASHAUKNE | 0 | 1 | $5K |
| Aug 13, 2021 | Thunderstorm Wind | SLATE RUN | 0 | 1 | $0 |
| Aug 16, 1966 | Tornado | 0 | 1 | $25K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
NWS meteorologists confirmed a microburst near Muncy in southern Lycoming County around 1640 EDT. Peak thunderstorm winds were estimated near 80 mph based on extensive tree and roof damage. The intense, straight-line downburst winds uprooted or snapped numerous trees, causing structural damage to several homes. One very large tree landed on a vehicle traveling along S. Main Street and resulted in two fatalities.
A severe thunderstorm produced winds around 100 mph near Muncy in Moreland Township. The winds destroyed a large chicken coop, nearly 600 feet by 70 feet, capable of housing over 80,000 chickens (there were no chickens in the structure when the storm hit). A NWS storm survey observed that the sturdy construction was completely uplifted and destroyed by a microburst. There were 6 persons in the structure, but none were injured.
The remnants of Hurricane Dennis produced 4 to 8 inches of rain across the southeast parts of Lycoming County. Particularly hard hit was Montgomery where flooding was compared to Agnes in 1972. Major flooding hit around 3:00 a.m. EDT. Thirty homes were damaged and one bridge was out of service. Around 80 people were evacuated between 2:00 a.m. and 4:00 a.m., with a large number of residents abandoning their homes at the lower end of West Houston Avenue and Brook Street. Others left homes on Main Street and the campground. One person told of leaving his home, only to find his car had been overturned by the water.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
113,489
Population (ACS)
$202K
Median home value
21
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Sep 11, 2024 | Tropical Storm | TROPICAL STORM DEBBY | DR |
| Mar 30, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Nov 27, 2018 | Severe Storm | SEVERE STORMS AND FLOODING | DR |
| Dec 2, 2016 | Flood | SEVERE STORMS AND FLOODING | DR |
| Oct 29, 2012 | Hurricane | HURRICANE SANDY | EM |
Quick answers
Frequently asked
How many severe weather events have been recorded in Lycoming County, Pennsylvania?
631 events are on record between 1956 and 2026, causing 10 direct deaths and $70.0M in property damage.
What is the most common severe weather hazard in Lycoming County?
Thunderstorm Wind, with 432 recorded events — 68.5% of everything in the archive for this county.
How many tornadoes have crossed Lycoming County?
30 mapped tornado paths intersect the county boundary; 27 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Lycoming County?
21 federal disaster declarations from FEMA include Lycoming County, each tied to a specific incident period.
How risky is Lycoming County compared with the rest of the country?
FEMA's National Risk Index rates Lycoming County as relatively low risk, placing it in the 80 percentile of its state for expected annual loss.
Where does the Lycoming County, Pennsylvania 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
- Luzerne County 599
- McKean County 348
- Lehigh County 694
- Mercer County 808
- Lebanon County 427
- Mifflin County 197
Cite this page
“Lycoming County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/lycoming-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.