Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS State College, PA

May 26, 2021Lancaster County, Pennsylvania

NWS State College, PA issued this special weather statement at May 26, 2021, 4:37 PM EDT for Lancaster County, Pennsylvania. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 26, 2021, 4:37 PM EDT (20:37 UTC)
Expired
May 26, 2021, 5:00 PM EDT
In force
23 min
Issued by
NWS State College, PA

County Lancaster County, PA

The radar

The Dover AFB radar (KDOX), 134 km from the middle of the area, began a volume at 20:37 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, 8.6 hours before the alert went out and 153 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 2021-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 478 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 2021-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
478 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
922 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 26, 4:17 PM EDT, 20 minutes earlier.

Area forecast discussion, May 26, 4:17 PM EDT, 20 minutes before
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Hazardous weather outlook, May 26, 4:16 PM EDT, 21 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
416 PM EDT Wed May 26 2021

PAZ005-006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-
056>059-063>066-272030-
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-
416 PM EDT Wed May 26 2021

...SEVERE THUNDERSTORM WATCH 205 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.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004-272030-
Warren-
416 PM EDT Wed May 26 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

In the hours before

Local storm report, May 26, 4:01 PM EDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
401 PM EDT WED MAY 26 2021

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

0212 PM     TSTM WND DMG     1 E STATE COLLEGE       40.79N 77.84W
05/26/2021                   CENTRE             PA   911 CALL CENTER

            TREES/WIRES DOWN IN STATE COLLEGE BOROUGH
            AND FERGUSON/COLLEGE TWPS.

0230 PM     TSTM WND DMG     1 NNE LIVERPOOL         40.58N 76.99W
05/26/2021                   PERRY              PA   911 CALL CENTER

            TREES/WIRES DOWN NEAR LIVERPOOL.

0235 PM     TSTM WND DMG     3 N LIVERPOOL           40.62N 77.00W
05/26/2021                   JUNIATA            PA   911 CALL CENTER

            TREES/WIRES DOWN ON LIGHT STREET IN
            SUSQUEHANNA TWP.

0247 PM     TSTM WND DMG     MILLERSTOWN             40.55N 77.15W
05/26/2021                   PERRY              PA   PUBLIC

            TREES/WIRES DOWN NEAR MILLERSTOWN.

0249 PM     TSTM WND DMG     1 N BERRYSBURG          40.61N 76.81W
05/26/2021                   DAUPHIN            PA   EMERGENCY MNGR

            MULTIPLE TREES AND A BARN BLOWN DOWN JUST
            NORTH OF BERRYSBURG OFF OF ROUTE 225.

0316 PM     TSTM WND DMG     2 WSW HALIFAX           40.46N 76.96W
05/26/2021                   PERRY              PA   911 CALL CENTER

            TREES/WIRES DOWN NEAR NEW BUFFALO.

0320 PM     TSTM WND DMG     1 N HALIFAX             40.48N 76.93W
05/26/2021                   DAUPHIN            PA   EMERGENCY MNGR

            TREES DOWN NEAR ROUTE 147 AND SEIDERS ROAD
            IN HALIFAX TOWNSHIP.

0347 PM     TSTM WND DMG     3 SW GETTYSBURG         39.80N 77.27W
05/26/2021                   ADAMS              PA   TRAINED SPOTTER

            TREES DOWN AND PEA-SIZED HAIL NEAR
            MILLERSTOWN ROAD AND BLACK HORSE TAVERN
            ROAD.

&&
Special weather statement, May 26, 4:03 PM EDT, 34 minutes before
Special Weather Statement
National Weather Service State College PA
403 PM EDT Wed May 26 2021

PAZ065-066-262030-
Lancaster PA-York PA-
403 PM EDT Wed May 26 2021

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF LANCASTER AND YORK
COUNTIES...

At 402 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Schuylkill Haven to Littlestown. Movement
was east at 30 mph.

Small hail and wind gusts of 50 to 55 mph are possible in spots.

Strong thunderstorms will be near...
  Codorus around 425 PM EDT.
  Glen Rock, Railroad and Shrewsbury around 430 PM EDT.

Other locations impacted by these storms include York Haven,
Smoketown, Washington Boro, Seven Valleys and East Prospect.

LAT...LON 3983 7700 3986 7696 3990 7698 4013 7675
      4012 7672 4015 7669 4015 7668 4016 7667
      4018 7661 4015 7644 4017 7635 4018 7602
      3972 7662 3972 7700
TIME...MOT...LOC 2002Z 270DEG 26KT 4057 7612 3976 7706

KF
Local storm report, May 26, 4:06 PM EDT, 31 minutes before
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Local storm report, May 26, 4:26 PM EDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
426 PM EDT WED MAY 26 2021

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

0350 PM     TSTM WND DMG     3 W NEW OXFORD          39.87N 77.11W
05/26/2021                   ADAMS              PA   FIRE DEPT/RESCUE

            TREES AND WIRES DOWN ON SWIFT RUN ROAD WEST
            OF NEW OXFORD.

&&
Local storm report, May 26, 4:33 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
433 PM EDT WED MAY 26 2021

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

0355 PM     TSTM WND DMG     2 SW LICKDALE           40.45N 76.51W
05/26/2021                   LEBANON            PA   FIRE DEPT/RESCUE

            TREES AND WIRES DOWN ALONG ROUTE 72 NORTH OF
            JONESTOWN.

&&
Special weather statement, May 26, 4:37 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service State College PA
437 PM EDT Wed May 26 2021

PAZ065-066-262100-
Lancaster PA-York PA-
437 PM EDT Wed May 26 2021

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF LANCASTER AND YORK
COUNTIES UNTIL 500 PM EDT...

At 436 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Brickerville to near Shrewsbury. Movement
was east at 30 mph.

Small hail and wind gusts of 50 to 55 mph are possible in spots.

Strong thunderstorms will be near...
  Akron and Rothsville around 440 PM EDT.
  Ephrata around 445 PM EDT.
  Leola around 450 PM EDT.
  New Holland and Terre Hill around 455 PM EDT.
  Churchtown around 500 PM EDT.

Other locations impacted by these storms include Buck, Peach Bottom,
Rawlinsville, Fawn Grove and Goodville.

LAT...LON 3972 7667 4015 7641 4018 7608 4018 7594
      4014 7588 4010 7594 4004 7594 3993 7600
      3987 7599 3987 7600 3985 7602 3976 7606
      3976 7608 3973 7610 3974 7611 3972 7614
TIME...MOT...LOC 2036Z 289DEG 27KT 4023 7622 3970 7666

KF

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 12:38 PM EDTSpecial Weather StatementCTPCambria52 min
May 26, 1:23 PM EDTSevere Thunderstorm WarningCTPClearfield, Elk41 min
May 26, 2:00 PM EDTSpecial Weather StatementCTPJuniata45 min
May 26, 2:07 PM EDTSpecial Weather StatementCTPFranklin23 min
May 26, 2:11 PM EDTSpecial Weather StatementCTPMifflin49 min
May 26, 2:16 PM EDTSevere Thunderstorm WarningCTPJuniata, Perry, Snyder44 min
May 26, 2:31 PM EDTSevere Thunderstorm WarningCTPColumbia, Lycoming, Sullivan39 min
May 26, 2:33 PM EDTSevere Thunderstorm WarningCTPDauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more57 min
May 26, 2:42 PM EDTSevere Thunderstorm WarningCTPCumberland, Franklin, Perry50 min
May 26, 2:46 PM EDTSevere Thunderstorm WarningCTPJuniata, Mifflin, Snyder20 min
May 26, 3:09 PM EDTSevere Thunderstorm WarningCTPDauphin, Perry51 min
May 26, 3:23 PM EDTSevere Thunderstorm WarningCTPDauphin, Lebanon, Schuylkill82 min
May 26, 3:35 PM EDTSevere Thunderstorm WarningCTPAdams44 min
May 26, 3:51 PM EDTSevere Thunderstorm WarningCTPDauphin, Lancaster, Lebanon54 min
May 26, 4:03 PM EDTSpecial Weather StatementCTPLancaster, York27 min
May 26, 4:47 PM EDTSevere Thunderstorm WarningCTPLancaster43 min
May 26, 5:00 PM EDTSpecial Weather StatementCTPAdams30 min
May 26, 5:02 PM EDTSpecial Weather StatementCTPLancaster28 min
May 26, 5:17 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, York43 min
May 26, 5:29 PM EDTSpecial Weather StatementCTPLancaster16 min
May 26, 5:37 PM EDTSevere Thunderstorm WarningCTPLancaster23 min
May 26, 6:13 PM EDTSpecial Weather StatementCTPCambria32 min
May 26, 6:30 PM EDTSevere Thunderstorm WarningCTPCambria15 min
May 26, 6:35 PM EDTSpecial Weather StatementCTPLebanon25 min
May 26, 6:44 PM EDTSevere Thunderstorm WarningCTPBlair37 min
May 26, 7:09 PM EDTSpecial Weather StatementCTPHuntingdon36 min
May 26, 7:22 PM EDTSpecial Weather StatementCTPLancaster23 min
May 26, 7:32 PM EDTSpecial Weather StatementCTPMifflin13 min
May 26, 7:42 PM EDTSpecial Weather StatementCTPJuniata, Mifflin33 min

Nearby

Special Weather Statements in Pennsylvania, 2021Every special weather statement in 2021

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.