Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 84, NWS State College, PA

June 16, 20224 counties in Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 16, 2022, 9:59 PM EDT for 4 counties in Pennsylvania. It was in force for 46 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 16, 2022, 9:59 PM EDT (01:59 UTC)
Expired
Jun 16, 2022, 10:45 PM EDT
In force
46 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cumberland County, PA, Dauphin County, PA, Lancaster County, PA, York County, PA

The radar

The State College radar (KCCX), 137 km from the middle of the area, began a volume at 02:00 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 16, 2:43 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 2.0 hours before the alert went out and 143 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 00:00Z on 2022-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1923 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 00:00Z on 2022-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.193958Sfc1 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
1923 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.3

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 16, 9:50 PM EDT, 9 minutes earlier.

Area forecast discussion, Jun 16, 9:50 PM EDT, 9 minutes before
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Hazardous weather outlook, Jun 16, 2:59 PM EDT, 7 hours before
Hazardous Weather Outlook
National Weather Service State College PA
259 PM EDT Thu Jun 16 2022

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-
056>059-063>066-171900-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Juniata-Somerset-Bedford-Fulton-Franklin-Tioga-Northern Lycoming-
Sullivan-Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Adams-York-Lancaster-
259 PM EDT Thu Jun 16 2022

...TORNADO WATCH 376 IN EFFECT UNTIL 11 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and 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.

Severe thunderstorms with damaging winds 60 mph or greater and
large hail exceeding 1 inch in diameter are probable this afternoon
and will linger into tonight. A few tornadoes are also possible.

Have multiple ways to receive weather warnings today and tonight and
have a safety and sheltering plan prepared.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

In the hours before

Special weather statement, Jun 16, 8:12 PM EDT, 1 hour 47 minutes before
Special Weather Statement
National Weather Service State College PA
812 PM EDT Thu Jun 16 2022

PAZ028-056-170045-
Perry PA-Juniata PA-
812 PM EDT Thu Jun 16 2022

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN JUNIATA AND NORTH
CENTRAL PERRY COUNTIES THROUGH 845 PM EDT...

At 812 PM EDT, Doppler radar was tracking a strong thunderstorm near
Lewistown, moving southeast at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Mcalisterville, Mexico, Walnut, Ickesburg, Mifflintown, Port Royal,
Thompsontown, Millerstown, Mifflin and East Salem.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 1100 PM EDT for central and
south central Pennsylvania.

&&

LAT...LON 4056 7754 4058 7750 4061 7750 4062 7748
      4067 7735 4057 7703 4040 7734
TIME...MOT...LOC 0012Z 297DEG 22KT 4059 7740

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...55 MPH

KF
Local storm report, Jun 16, 8:56 PM EDT, 1 hour 3 minutes before
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Local storm report, Jun 16, 9:22 PM EDT, 37 minutes before
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Local storm report, Jun 16, 9:32 PM EDT, 27 minutes before
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Local storm report, Jun 16, 9:36 PM EDT, 23 minutes before
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Special weather statement, Jun 16, 9:40 PM EDT, 19 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 8:12 PM EDTSpecial Weather StatementCTPJuniata33 min
Jun 16, 8:17 PM EDTSevere Thunderstorm Warning Considerable damage threatCTPJuniata, Perry58 min
Jun 16, 8:21 PM EDTTornado WarningCTPJuniata, Perry54 min
Jun 16, 8:59 PM EDTSevere Thunderstorm WarningCTPCumberland, Dauphin61 min
Jun 16, 9:40 PM EDTSpecial Weather StatementCTPDauphin20 min
Jun 16, 9:56 PM EDTAreal Flood AdvisoryCTPDauphin82 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2022Every severe thunderstorm warning in 2022

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.