Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 44, NWS State College, PA

May 20, 20224 counties in Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 20, 2022, 12:09 PM EDT for 4 counties in Pennsylvania. It was in force for 81 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 20, 2022, 12:09 PM EDT (16:09 UTC)
Expired
May 20, 2022, 1:30 PM EDT
In force
81 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Tornado
Possible
Damage threat
Considerable
Hail
0.75 in
Wind
70.0 mph

Counties Bedford County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA

The radar

The State College radar (KCCX), 95 km from the middle of the area, began a volume at 16:09 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
May 20, 11:35 AM EDTTornado WatchSPC7 hr

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 20, 11:46 AM EDT, 23 minutes earlier.

Area forecast discussion, May 20, 11:46 AM EDT, 23 minutes before
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Hazardous weather outlook, May 20, 5:25 AM EDT, 6 hours 44 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
525 AM EDT Fri May 20 2022

PAZ017-024-025-033>035-210930-
Clearfield-Cambria-Blair-Somerset-Bedford-Fulton-
525 AM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Thunderstorms may produce strong gusty winds and locally heavy
rainfall early today.

.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.

PAZ005-010-011-210930-
McKean-Elk-Cameron-
525 AM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Thunderstorms may produce strong gusty winds and locally heavy
rainfall early today.

.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.

PAZ028-036-045-046-049>053-056>059-063>066-210930-
Juniata-Franklin-Southern Clinton-Southern Lycoming-Union-Snyder-
Montour-Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-
Cumberland-Adams-York-Lancaster-
525 AM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Isolated severe storms are possible this afternoon into early
evening on the leading edge of a thunderstorm complex. Locally heavy
rainfall is also possible which could result in a few instances of
short-term flooding especially in urban areas.

.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.

PAZ004-210930-
Warren-
525 AM EDT Fri May 20 2022

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...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.

PAZ018-019-026-027-210930-
Northern Centre-Southern Centre-Huntingdon-Mifflin-
525 AM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Isolated severe storms are possible this afternoon on the leading
edge of a thunderstorm complex. Locally heavy rainfall is also
possible which could result in a few instances of short-term flooding
especially in urban areas.

.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.

PAZ006-012-037-041-042-210930-
Potter-Northern Clinton-Tioga-Northern Lycoming-Sullivan-
525 AM EDT Fri May 20 2022

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Isolated severe storms are possible this afternoon on the leading
edge of a thunderstorm complex. Locally heavy rainfall is also
possible which could result in a few instances of short-term flooding
especially in urban areas.

.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.

MRS

In the hours before

Special weather statement, May 20, 10:36 AM EDT, 1 hour 33 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, 39 minutes before
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Local storm report, May 20, 11:35 AM EDT, 34 minutes before
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Special weather statement, May 20, 11:53 AM EDT, 16 minutes before
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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, 12:45 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, 1:19 PM EDTSpecial Weather StatementCTPCumberland, Dauphin, Perry56 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

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; radar from the NEXRAD Level II archive.