Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 78, NWS State College, PA

May 26, 2019Juniata County, Snyder County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 26, 2019, 1:23 PM EDT for Juniata County, Snyder County, Pennsylvania. It was in force for 22 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
May 26, 2019, 1:23 PM EDT (17:23 UTC)
Expired
May 26, 2019, 1:45 PM EDT
In force
22 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Juniata County, PA, Snyder County, PA

The radar

The State College radar (KCCX), 71 km from the middle of the area, began a volume at 17:25 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 5.4 hours before the alert went out and 190 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 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2019-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.19395878Sfc1 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
7 J/kg
Mixed-layer CIN
-231 J/kg
Mixed-layer LCL
1274 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
13 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 May 26, 11:30 AM EDT, 1 hour 53 minutes earlier.

Area forecast discussion, May 26, 11:30 AM EDT, 1 hour 53 minutes before
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Hazardous weather outlook, May 26, 4:46 AM EDT, 8 hours 37 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
446 AM EDT Sun May 26 2019

PAZ004>006-010>012-017>019-024>028-037-041-042-045-046-049>053-
270900-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Juniata-Tioga-Northern Lycoming-Sullivan-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
446 AM EDT Sun May 26 2019

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...Monday through Saturday.

A few rounds of showers and potentially strong to severe thunderstorms
with gusty winds and hail are possible Tuesday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ033>036-056>059-063>066-270900-
Somerset-Bedford-Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-
Cumberland-Adams-York-Lancaster-
446 AM EDT Sun May 26 2019

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Severe thunderstorms with damaging winds 60 mph or greater and large
hail exceeding 1 inch in diameter are possible this afternoon and
evening. Locally heavy rain is also possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

A few rounds of showers and potentially strong to severe thunderstorms
with gusty winds and hail are possible Tuesday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

Martin

In the hours before

Special weather statement, May 26, 7:24 AM EDT, 5 hours 59 minutes before
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Special weather statement, May 26, 11:07 AM EDT, 2 hours 16 minutes before
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Special weather statement, May 26, 12:38 PM EDT, 45 minutes before
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Special weather statement, May 26, 12:40 PM EDT, 43 minutes before
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Special weather statement, May 26, 12:57 PM EDT, 26 minutes before
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Special weather statement, May 26, 1:04 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
May 25, 8:09 PM EDTSevere Thunderstorm WarningCTPMcKean, Potter51 min
May 25, 8:25 PM EDTSpecial Weather StatementCTPCameron35 min
May 25, 8:31 PM EDTSpecial Weather StatementCTPClearfield44 min
May 25, 8:45 PM EDTSevere Thunderstorm WarningCTPCambria45 min
May 25, 8:47 PM EDTSpecial Weather StatementCTPTioga43 min
May 25, 8:57 PM EDTSpecial Weather StatementCTPClinton, Lycoming, Potter63 min
May 25, 9:10 PM EDTSpecial Weather StatementCTPSomerset50 min
May 25, 9:27 PM EDTSpecial Weather StatementCTPBlair48 min
May 26, 11:07 AM EDTSpecial Weather StatementCTPCambria38 min
May 26, 12:38 PM EDTSpecial Weather StatementCTPFulton37 min
May 26, 12:40 PM EDTSpecial Weather StatementCTPMifflin35 min
May 26, 12:57 PM EDTSpecial Weather StatementCTPFranklin33 min
May 26, 1:04 PM EDTSpecial Weather StatementCTPSnyder41 min
May 26, 1:38 PM EDTSpecial Weather StatementCTPTioga37 min
May 26, 1:43 PM EDTSpecial Weather StatementCTPDauphin32 min
May 26, 1:47 PM EDTSpecial Weather StatementCTPLycoming43 min
May 26, 1:59 PM EDTSpecial Weather StatementCTPSullivan31 min
May 26, 2:13 PM EDTSpecial Weather StatementCTPLebanon47 min
May 26, 2:45 PM EDTSpecial Weather StatementCTPLycoming30 min
May 26, 3:48 PM EDTSpecial Weather StatementCTPDauphin27 min
May 26, 4:12 PM EDTSpecial Weather StatementCTPLebanon33 min
May 26, 4:31 PM EDTSevere Thunderstorm WarningCTPLebanon29 min
May 26, 4:47 PM EDTSpecial Weather StatementCTPLancaster43 min
May 26, 4:55 PM EDTSevere Thunderstorm WarningCTPLancaster, Lebanon35 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2019Every severe thunderstorm warning in 2019

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.