closegps_fixed
Elev 591 ft, 41.25 °N, 77.03 °W

Williamsport, PA Severe Weather Alertstar_ratehome

icon72 Â°F Williamsport Station|Report|Change
Current Station
Personal Weather Station
Location: Williamsport, PA
Elevation: 591ft
Nearby Weather Stations

Active Weather Alerts

Severe Thunderstorm Warning
Issued: 10:53 PM Aug. 27, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHERN COLUMBIA...EAST CENTRAL LYCOMING AND SOUTHEASTERN
SULLIVAN COUNTIES...

At 652 PM EDT, a severe thunderstorm was located over Lairdsville,
moving east at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.

Locations impacted include...
Hughesville, Jamison City, Waller, Fairmount Spgs, Biggertown,
Lairdsville, Ricketts Glen State Park, Central, Muncy Valley, Benton,
Picture Rocks, and Stillwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay inside a well built structure and keep away from windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&


HAIL THREAT...RADAR INDICATED;
MAX HAIL SIZE...1.25 IN;
WIND THREAT...RADAR INDICATED;
MAX WIND GUST...60 MPH

Severe Thunderstorm Watch
Issued: 10:43 PM Aug. 27, 2026 – National Weather Service
PA
.    PENNSYLVANIA COUNTIES INCLUDED ARE

ADAMS                CENTRE              CLINTON
COLUMBIA             CUMBERLAND          DAUPHIN
FRANKLIN             FULTON              HUNTINGDON
JUNIATA              LANCASTER           LEBANON
LYCOMING             MIFFLIN             MONTOUR
NORTHUMBERLAND       PERRY               SCHUYLKILL
SNYDER               SULLIVAN            UNION
YORK
Flash Flood Warning
Issued: 10:23 PM Aug. 27, 2026 – National Weather Service
The National Weather Service in State College has issued a

* Flash Flood Warning for...
East Central Lycoming County in north central Pennsylvania...
South Central Sullivan County in north central Pennsylvania...

* Until 1030 PM EDT.

* At 623 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts up to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.

* Some locations that will experience flash flooding include...
Hughesville, Muncy Valley, Lairdsville and Picture Rocks.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&


FLASH FLOOD...RADAR INDICATED

Local Radar
Local Radar ImageLocal Severe Image