Alert archive / Pennsylvania / Special Weather Statements in 2022

Special Weather Statement, NWS State College, PA

May 20, 2022Cumberland County, Dauphin County, Perry County, Pennsylvania

NWS State College, PA issued this special weather statement at May 20, 2022, 1:19 PM EDT for Cumberland County, Dauphin County, Perry County, Pennsylvania. It was in force for 56 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 20, 2022, 1:19 PM EDT (17:19 UTC)
Expired
May 20, 2022, 2:15 PM EDT
In force
56 min
Issued by
NWS State College, PA
Hail
0.25 in
Wind
50

Counties Cumberland County, PA, Dauphin County, PA, Perry County, PA

The radar

The State College radar (KCCX), 107 km from the middle of the area, began a volume at 17:19 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, 5.3 hours before the alert went out and 156 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 2022-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2022-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1 J/kg
Mixed-layer CIN
-226 J/kg
Mixed-layer LCL
1469 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
169 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 20, 11:46 AM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, May 20, 11:46 AM EDT, 1 hour 33 minutes before
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Hazardous weather outlook, May 20, 12:57 PM EDT, 22 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
1257 PM EDT Fri May 20 2022

PAZ017-024-033-211700-
Clearfield-Cambria-Somerset-
1257 PM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Very warm and humid conditions are expected Saturday. Maximum heat
index values are forecast in the low to mid 90s. Be mindful of heat
stress impacts given limited heat exposure and acclimation this
early
in the year.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ025-034-035-211700-
Blair-Bedford-Fulton-
1257 PM EDT Fri May 20 2022

...TORNADO WATCH 251 IN EFFECT UNTIL 7 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.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Very warm and humid conditions are expected Saturday. Maximum heat
index values are forecast in the low to mid 90s. Be mindful of heat
stress impacts given limited heat exposure and acclimation this
early
in the year.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ005-010-011-211700-
McKean-Elk-Cameron-
1257 PM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ028-036-049>053-056>059-063>066-211700-
Juniata-Franklin-Union-Snyder-Montour-Northumberland-Columbia-Perry-
Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
1257 PM EDT Fri May 20 2022

...TORNADO WATCH 251 IN EFFECT UNTIL 7 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.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Hot and humid conditions are expected Saturday. Maximum heat index
values are forecast in the mid to upper 90s and approaching 100
degrees in some areas. Be mindful of heat stress impacts given
limited heat exposure and acclimation this early in the year.

Isolated severe storms with wind damage and hail will be possible
Sunday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ045-046-211700-
Southern Clinton-Southern Lycoming-
1257 PM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Hot and humid conditions are expected Saturday. Maximum heat index
values are forecast in the mid to upper 90s and approaching 100
degrees in some areas. Be mindful of heat stress impacts given
limited heat exposure and acclimation this early in the year.

Isolated severe storms with wind damage and hail will be possible
Sunday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004-211700-
Warren-
1257 PM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

A marginal hail and wind-damage threat will be possible Saturday
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ018-019-026-027-211700-
Northern Centre-Southern Centre-Huntingdon-Mifflin-
1257 PM EDT Fri May 20 2022

...TORNADO WATCH 251 IN EFFECT UNTIL 7 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.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Very warm and humid conditions are expected Saturday. Maximum heat
index values are forecast in the low to mid 90s. Be mindful of heat
stress impacts given limited heat exposure and acclimation this
early
in the year.

Isolated severe storms with wind damage and hail will be possible
Sunday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ006-012-037-041-042-211700-
Potter-Northern Clinton-Tioga-Northern Lycoming-Sullivan-
1257 PM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Isolated severe storms with wind damage and hail will be possible
Sunday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

Lambert

In the hours before

Special weather statement, May 20, 10:36 AM EDT, 2 hours 43 minutes before
Special Weather Statement
National Weather Service State College PA
1036 AM EDT Fri May 20 2022

PAZ024-025-033-034-201515-
Bedford PA-Somerset PA-Blair PA-Cambria PA-
1036 AM EDT Fri May 20 2022

...STRONG THUNDERSTORMS WILL IMPACT WESTERN BEDFORD...SOMERSET...
SOUTHWESTERN BLAIR AND SOUTH CENTRAL CAMBRIA COUNTIES THROUGH 1115 AM
EDT...

At 1035 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 15 miles east of Connellsville to 10 miles
southwest of Somerset to 12 miles northwest of Bittinger. Movement
was northeast at 55 mph.

HAZARD...Winds up to 45 mph and pea 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...
Somerset, Windber, Bedford, Belmont, Portage, Geistown, Meyersdale,
Berlin, Claysburg, Friedens, Boswell, Osterburg, Salix-Beauty Line
Park, Davidsville, Central City, Beaverdale-Lloydell, Paint, Jerome,
Buffalo Mills and Scalp Level.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 3978 7939 3978 7935 3984 7939 3992 7939
      4009 7926 4012 7921 4011 7919 4012 7917
      4016 7916 4018 7913 4020 7912 4047 7849
      4020 7843 3987 7850 3973 7939
TIME...MOT...LOC 1435Z 241DEG 57KT 4006 7931 3991 7922 3977 7932

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Lambert
Local storm report, May 20, 11:30 AM EDT, 1 hour 49 minutes before
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Local storm report, May 20, 11:35 AM EDT, 1 hour 44 minutes before
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Special weather statement, May 20, 11:53 AM EDT, 1 hour 26 minutes before
Special Weather Statement
National Weather Service State College PA
1153 AM EDT Fri May 20 2022

PAZ065-066-201630-
Lancaster PA-York PA-
1153 AM EDT Fri May 20 2022

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN LANCASTER AND CENTRAL
YORK COUNTIES THROUGH 1230 PM EDT...

At 1153 AM EDT, Doppler radar was tracking a strong thunderstorm near
York, moving northeast at 50 mph.

HAZARD...Wind gusts up to 50 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.

This strong thunderstorm will be near...
  Columbia, Elizabethtown and Rheems around 1200 PM EDT.
  Mount Joy, Salunga-Landisville and Mountville around 1205 PM EDT.
  Manheim and East Petersburg around 1210 PM EDT.
  Lititz around 1215 PM EDT.
  Akron, Brickerville and Rothsville around 1220 PM EDT.
  Ephrata, Reamstown and Denver around 1225 PM EDT.

Other locations impacted by this storm include York Haven, Schoeneck,
Penryn, Reinholds and Lancaster Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 700 PM EDT for south central
Pennsylvania.

&&

LAT...LON 3992 7670 4008 7683 4013 7674 4012 7673
      4012 7672 4014 7671 4017 7666 4017 7664
      4019 7661 4019 7657 4024 7644 4025 7631
      4031 7616 4021 7599
TIME...MOT...LOC 1553Z 239DEG 49KT 4005 7668

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Jurewicz
Special weather statement, May 20, 12:45 PM EDT, 34 minutes before
Special Weather Statement
National Weather Service State College PA
1245 PM EDT Fri May 20 2022

PAZ065-066-201730-
Lancaster PA-York PA-
1245 PM EDT Fri May 20 2022

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN LANCASTER AND
CENTRAL YORK COUNTIES THROUGH 130 PM EDT...

At 1245 PM EDT, Doppler radar was tracking a strong thunderstorm over
York, moving northeast at 40 mph.

HAZARD...Wind gusts up to 50 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...
Lancaster, York, Elizabethtown, Columbia, Lititz, Mount Joy, Manheim,
East Petersburg, Shiloh, East York, Leola, Stonybrook-Wilshire,
Salunga-Landisville, Maytown, Rothsville, Mountville, Manchester,
Hallam, Emigsville and Marietta.

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.

A Tornado Watch remains in effect until 700 PM EDT for south central
Pennsylvania.

&&

LAT...LON 3997 7668 3998 7677 4004 7679 4024 7638
      4009 7616
TIME...MOT...LOC 1645Z 250DEG 35KT 4001 7672

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Lambert
Special weather statement, May 20, 1:19 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service State College PA
119 PM EDT Fri May 20 2022

PAZ056-057-063-201815-
Perry PA-Cumberland PA-Dauphin PA-
119 PM EDT Fri May 20 2022

...STRONG THUNDERSTORMS WILL IMPACT DAUPHIN...NORTHERN CUMBERLAND AND
EASTERN PERRY COUNTIES THROUGH 215 PM EDT...

At 118 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 17 miles northwest of Enola to 15 miles west of
Mechanicsburg to near Carlisle. Movement was northeast at 50 mph.

HAZARD...Wind gusts up to 50 mph and pea 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...
Harrisburg, Carlisle, Lower Allen, Hershey, Colonial Park, Progress,
Mechanicsburg, Camp Hill, Palmyra, New Cumberland, Linglestown,
Enola, Steelton, Lemoyne, Hummelstown, Plainfield, Paxtonia,
Schlusser, Rutherford and Skyline View.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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.

A Tornado Watch remains in effect until 700 PM EDT for south central
and central Pennsylvania.

&&

LAT...LON 4025 7746 4052 7715 4066 7670 4047 7668
      4029 7661 4021 7689 4023 7690 4021 7691
      4008 7736
TIME...MOT...LOC 1718Z 248DEG 43KT 4051 7710 4030 7729 4013 7731

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Lambert

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 10:36 AM EDTSpecial Weather StatementCTPBedford, Somerset39 min
May 20, 10:56 AM EDTSevere Thunderstorm WarningCTPBedford, Blair, Cambria, Fulton, Huntingdon, Somerset49 min
May 20, 11:20 AM EDTSevere Thunderstorm Warning Considerable damage threatCTPBedford, Somerset55 min
May 20, 11:53 AM EDTSpecial Weather StatementCTPLancaster37 min
May 20, 12:09 PM EDTSevere Thunderstorm Warning Considerable damage threatCTPBedford, Franklin, Fulton, Huntingdon81 min
May 20, 12:45 PM EDTSpecial Weather StatementCTPLancaster45 min
May 20, 1:14 PM EDTSevere Thunderstorm WarningCTPLancaster61 min
May 20, 1:18 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, Franklin, York42 min
May 20, 1:41 PM EDTSpecial Weather StatementCTPFranklin, Fulton34 min
May 20, 1:41 PM EDTSevere Thunderstorm WarningCTPCumberland, Dauphin, Lebanon, Perry34 min
May 20, 1:55 PM EDTSpecial Weather StatementCTPColumbia20 min
May 20, 1:58 PM EDTSevere Thunderstorm WarningCTPLancaster, York47 min
May 20, 2:11 PM EDTSevere Thunderstorm WarningCTPDauphin, Lebanon34 min
May 20, 2:16 PM EDTSevere Thunderstorm WarningCTPYork29 min
May 20, 2:30 PM EDTSpecial Weather StatementCTPSchuylkill60 min
May 20, 2:33 PM EDTSevere Thunderstorm Warning Considerable damage threatCTPLancaster42 min

Nearby

Special Weather Statements in Pennsylvania, 2022Every special weather statement 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.