Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 19, NWS State College, PA

April 19, 20255 counties in Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Apr 19, 2025, 4:04 PM EDT for 5 counties in Pennsylvania. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 19, 2025, 4:04 PM EDT (20:04 UTC)
Expired: Apr 19, 2025, 4:28 PM EDT
In force: 24 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Columbia County, PA, Lycoming County, PA, Montour County, PA, Northumberland County, PA, Sullivan County, PA

The radar

The State College radar (KCCX), 115 km from the middle of the area, began a volume at 20:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.1 hours before the alert went out and 260 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 5 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 613 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 19, 3:21 PM EDT, 43 minutes earlier.

Area forecast discussion, Apr 19, 3:21 PM EDT, 43 minutes before

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Hazardous weather outlook, Apr 19, 4:11 AM EDT, 11 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
411 AM EDT Sat Apr 19 2025

PAZ028-033>036-050>053-056>059-063>066-200815-
Juniata-Somerset-Bedford-Fulton-Franklin-Snyder-Montour-
Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Adams-York-Lancaster-
411 AM EDT Sat Apr 19 2025

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ004>006-010>012-017>019-024>027-037-041-042-045-046-049-200815-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Tioga-Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-
Union-
411 AM EDT Sat Apr 19 2025

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

A cold front will push slowly Southeast across the region during the
late morning and afternoon hours. This airmass boundary will
combine with strong west-southwest winds present throughout a
deep layer of the atmosphere to bring the risk of gusty showers and
scattered strong to severe thunderstorms. Localized strong to
damaging straight-line winds over 60 mph are possible along with
small hail and occasional, dangerous cloud to ground lightning.

The storms will likely be moving to the east at 50 to 55 mph,
so stay closely follow NWS forecasts and any warnings and stay
aware of skies to the west and the quick approach of
thunderstorms.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

Lambert

In the hours before

Special weather statement, Apr 19, 2:34 PM EDT, 1 hour 30 minutes before

Special Weather Statement
National Weather Service State College PA
234 PM EDT Sat Apr 19 2025

PAZ017-191900-
Clearfield PA-
234 PM EDT Sat Apr 19 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN CLEARFIELD COUNTY
THROUGH 300 PM EDT...

At 233 PM EDT, Doppler radar was tracking a strong thunderstorm near
Punxsutawney, moving east at 55 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Rockton, Curwensville, Clearfield-Lawrence Airport, Grampian, Sandy,
Plymptonville, Clearfield, Penn State Dubois, Woodland, Hyde, DuBois,
Parker Dam State Park, Troutville, Lecontes Mills, S.B. Elliot State
Park, Treasure Lake, Penfield, Falls Creek, and Sykesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

If on or near Treasure Lake, get out of the water and move indoors
or inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.

&&

LAT...LON 4114 7880 4119 7877 4124 7827 4123 7827
      4123 7823 4101 7816 4094 7881
TIME...MOT...LOC 1833Z 260DEG 60KT 4099 7887

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

NPB

Local storm report, Apr 19, 3:21 PM EDT, 43 minutes before

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Special weather statement, Apr 19, 3:47 PM EDT, 17 minutes before

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Local storm report, Apr 19, 3:49 PM EDT, 15 minutes before

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Local storm report, Apr 19, 3:55 PM EDT, 9 minutes before

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The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 2:34 PM EDT	Special Weather Statement	CTP	Clearfield	26 min
Apr 19, 2:44 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	31 min
Apr 19, 2:56 PM EDT	Severe Thunderstorm Warning Destructive damage threat	CTP	Centre, Clearfield	19 min
Apr 19, 3:15 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	17 min
Apr 19, 3:47 PM EDT	Special Weather Statement	CTP	Union	28 min
Apr 19, 4:07 PM EDT	Special Weather Statement	CTP	Sullivan	23 min
Apr 19, 6:27 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	48 min
Apr 19, 7:12 PM EDT	Special Weather Statement	CTP	Somerset	33 min
Apr 19, 7:48 PM EDT	Special Weather Statement	CTP	Fulton	27 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2025 Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.