Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 93, NWS State College, PA

June 29, 2024Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 29, 2024, 6:45 PM EDT for Schuylkill County, Pennsylvania. It was in force for 15 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
Jun 29, 2024, 6:45 PM EDT (22:45 UTC)
Expired
Jun 29, 2024, 7:00 PM EDT
In force
15 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Schuylkill County, PA

The radar

The State College radar (KCCX), 152 km from the middle of the area, began a volume at 22:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 29, 1:11 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.8 hours before the alert went out and 220 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2024-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2024-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
10 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
130 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 Jun 29, 6:31 PM EDT, 14 minutes earlier.

Area forecast discussion, Jun 29, 6:31 PM EDT, 14 minutes before
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Hazardous weather outlook, Jun 29, 5:58 PM EDT, 47 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
558 PM EDT Sat Jun 29 2024

PAZ004>006-010>012-017>019-024-025-033-034-037-041-042-045-046-
302200-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Somerset-Bedford-Tioga-
Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-
558 PM EDT Sat Jun 29 2024

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

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

Strong to severe thunderstorms with gusty winds and small hail are
possible again on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ026>028-035-036-049-050-056>059-063>066-302200-
Huntingdon-Mifflin-Juniata-Fulton-Franklin-Union-Snyder-Perry-
Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
558 PM EDT Sat Jun 29 2024

...TORNADO WATCH 482 IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Tornado Watch.

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

Strong to severe thunderstorms with gusty winds and small hail are
possible again on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ051>053-302200-
Montour-Northumberland-Columbia-
558 PM EDT Sat Jun 29 2024

...FLOOD WATCH REMAINS IN EFFECT UNTIL 2 AM EDT SUNDAY...
...TORNADO WATCH 482 IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Flood Watch.
   Tornado Watch.

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

Strong to severe thunderstorms with gusty winds and small hail are
possible again on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

In the hours before

Special weather statement, Jun 29, 5:04 PM EDT, 1 hour 41 minutes before
Special Weather Statement
National Weather Service State College PA
504 PM EDT Sat Jun 29 2024

PAZ026-028-034>036-056-063-292130-
Perry PA-Bedford PA-Fulton PA-Franklin PA-Cumberland PA-Juniata PA-
Huntingdon PA-
504 PM EDT Sat Jun 29 2024

...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL BEDFORD...SOUTHERN
HUNTINGDON...NORTHEASTERN FRANKLIN...NORTHEASTERN FULTON...
SOUTHWESTERN JUNIATA...WESTERN CUMBERLAND AND SOUTHWESTERN PERRY
COUNTIES THROUGH 530 PM EDT...

At 503 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 11 miles southeast of Huntingdon to 11 miles
northeast of Breezewood. Movement was east at 35 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Mount Union, Waterfall, Rockhill Furnace, Wells Tannery, Fort
Littleton, East Waterford, Dudley, Willow Hill, Fannettsburg,
Roxbury, Perulack, Big Spring State Park, Doylesburg, Upper
Strasburg, Saxton, Broad Top City, Three Springs, Orbisonia,
Saltillo, and Blain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Very heavy rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

A Tornado Watch remains in effect until 800 PM EDT for south central
and central Pennsylvania.

&&

LAT...LON 4009 7831 4022 7825 4028 7811 4037 7806
      4037 7786 4036 7782 4038 7776 4038 7747
      4003 7764
TIME...MOT...LOC 2103Z 263DEG 32KT 4036 7787 4011 7806

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Bauco
Local storm report, Jun 29, 6:00 PM EDT, 45 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
600 PM EDT Sat Jun 29 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0552 PM     Tstm Wnd Gst     2 ENE Elizabethville    40.56N 76.78W
06/29/2024  M65 MPH          Dauphin            PA   Trained Spotter

&&

NPB
Local storm report, Jun 29, 6:09 PM EDT, 36 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
609 PM EDT Sat Jun 29 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0552 PM     Tstm Wnd Dmg     2 E Berrysburg          40.61N 76.78W
06/29/2024                   Dauphin            PA   911 Call Center

            Tree down across Route 36 in the vicinity of
            North Crossroads Road.

&&

NPB
Local storm report, Jun 29, 6:11 PM EDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
611 PM EDT Sat Jun 29 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     Tstm Wnd Dmg     2 W Williamstown        40.58N 76.65W
06/29/2024                   Dauphin            PA   911 Call Center

            Tree down blocking one lane of West Market
            Street.

&&

NPB
Local storm report, Jun 29, 6:33 PM EDT, 12 minutes before
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Local storm report, Jun 29, 6:43 PM EDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 3:42 AM EDTFlood WatchCTPBlair, Cambria, Cameron, Centre, Clearfield, Clinton and 15 more15 hr
Jun 29, 2:10 PM EDTSpecial Weather StatementCTPWarren35 min
Jun 29, 3:08 PM EDTSpecial Weather StatementCTPCentre37 min
Jun 29, 3:20 PM EDTSpecial Weather StatementCTPCambria25 min
Jun 29, 3:32 PM EDTSevere Thunderstorm WarningCTPBlair, Centre, Clinton, Huntingdon43 min
Jun 29, 3:51 PM EDTSevere Thunderstorm WarningCTPBlair, Huntingdon, Mifflin39 min
Jun 29, 3:58 PM EDTTornado WarningCTPHuntingdon6 min
Jun 29, 4:03 PM EDTTornado WarningCTPHuntingdon27 min
Jun 29, 4:13 PM EDTSevere Thunderstorm WarningCTPCentre, Clinton, Huntingdon, Mifflin, Snyder, Union47 min
Jun 29, 4:28 PM EDTSevere Thunderstorm WarningCTPBlair, Huntingdon, Juniata, Mifflin47 min
Jun 29, 4:59 PM EDTSevere Thunderstorm WarningCTPJuniata, Mifflin, Snyder16 min
Jun 29, 5:04 PM EDTSpecial Weather StatementCTPHuntingdon26 min
Jun 29, 5:14 PM EDTSevere Thunderstorm WarningCTPDauphin, Juniata, Northumberland, Perry, Schuylkill, Snyder46 min
Jun 29, 5:28 PM EDTTornado WarningCTPJuniata, Northumberland, Snyder17 min
Jun 29, 5:40 PM EDTSevere Thunderstorm WarningCTPCumberland, Franklin, Huntingdon, Perry50 min
Jun 29, 5:57 PM EDTSevere Thunderstorm Warning Considerable damage threatCTPColumbia, Dauphin, Lebanon, Northumberland, Perry, Schuylkill48 min
Jun 29, 6:23 PM EDTTornado WarningCTPCumberland25 min
Jun 29, 6:44 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, Dauphin, York46 min
Jun 29, 7:48 PM EDTSpecial Weather StatementCTPYork27 min
Jun 29, 7:55 PM EDTSpecial Weather StatementCTPFranklin35 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2024Every severe thunderstorm warning in 2024

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.