Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 231, NWS State College, PA

August 15, 2019Bedford County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Aug 15, 2019, 3:00 PM EDT for Bedford County, Pennsylvania. It was in force for 60 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: Aug 15, 2019, 3:00 PM EDT (19:00 UTC)
Expired: Aug 15, 2019, 4:00 PM EDT
In force: 60 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Bedford County, PA

The radar

The State College radar (KCCX), 110 km from the middle of the area, began a volume at 19:03 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

Pittsburgh, PA (KPIT), launched 12:00Z, 7.0 hours before the alert went out and 144 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 101 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Aug 15, 1:52 PM EDT, 1 hour 8 minutes earlier.

Area forecast discussion, Aug 15, 1:52 PM EDT, 1 hour 8 minutes before

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Hazardous weather outlook, Aug 15, 6:06 AM EDT, 8 hours 54 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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In the hours before

Special weather statement, Aug 15, 1:29 PM EDT, 1 hour 31 minutes before

Special Weather Statement
National Weather Service State College PA
129 PM EDT Thu Aug 15 2019

PAZ017-018-151815-
Northern Centre PA-Clearfield PA-
129 PM EDT Thu Aug 15 2019

...SPECIAL WEATHER STATEMENT...

At 128 PM EDT, Doppler radar indicated a strong thunderstorm 7 miles
northwest of Prince Gallitzin State Park, moving northeast at 10 mph.

Pea size hail, wind gusts to 40 mph and heavy downpours are expected.

Locations impacted include...
Osceola Mills, Chester Hill, Houtzdale, South Philipsburg, Jeffries,
Irvona, West Decatur, Coalport, Ramey, Brisbin, Westover, Wallaceton
and Glen Hope.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4100 7832 4087 7821 4078 7826 4073 7837
      4073 7867 4078 7871
TIME...MOT...LOC 1728Z 244DEG 8KT 4077 7862

DeVoir

Special weather statement, Aug 15, 2:13 PM EDT, 47 minutes before

Special Weather Statement
National Weather Service State College PA
213 PM EDT Thu Aug 15 2019

PAZ033-034-151900-
Bedford PA-Somerset PA-
213 PM EDT Thu Aug 15 2019

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF BEDFORD AND SOMERSET
COUNTIES UNTIL 300 PM EDT...

At 212 PM EDT, Doppler radar indicated a strong thunderstorm 7 miles
east of Berlin, moving east at 10 mph.

Wind gusts 40 to 50 mph and penny size hail are possible.

Locations impacted include...
Buffalo Mills, Schellsburg, Manns Choice and New Baltimore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3986 7886 3997 7888 4007 7857 3989 7853
TIME...MOT...LOC 1812Z 258DEG 11KT 3993 7881

La Corte

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 1:29 PM EDT	Special Weather Statement	CTP	Clearfield	46 min
Aug 15, 2:10 PM EDT	Areal Flood Advisory	CTP	Columbia	3 hr
Aug 15, 2:13 PM EDT	Special Weather Statement	CTP	Bedford	47 min
Aug 15, 3:11 PM EDT	Tornado Warning	CTP	Bedford	49 min
Aug 15, 3:39 PM EDT	Special Weather Statement	CTP	Clearfield	51 min
Aug 15, 3:47 PM EDT	Special Weather Statement	CTP	Clinton	28 min
Aug 15, 3:47 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	58 min
Aug 15, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	94 min
Aug 15, 4:03 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	57 min
Aug 15, 4:06 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	27 min
Aug 15, 4:19 PM EDT	Flash Flood Warning	CTP	Lycoming	3 hr
Aug 15, 4:47 PM EDT	Special Weather Statement	CTP	Lycoming	28 min
Aug 15, 4:52 PM EDT	Areal Flood Advisory	CTP	Centre, Clearfield	113 min
Aug 15, 5:08 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	67 min
Aug 15, 5:10 PM EDT	Special Weather Statement	CTP	Potter	35 min
Aug 15, 5:11 PM EDT	Special Weather Statement	CTP	Blair	49 min
Aug 15, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	56 min
Aug 15, 5:22 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	53 min
Aug 15, 5:28 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	62 min
Aug 15, 5:44 PM EDT	Special Weather Statement	CTP	Centre	46 min
Aug 15, 5:53 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	67 min
Aug 15, 6:16 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	59 min
Aug 15, 6:32 PM EDT	Areal Flood Advisory	CTP	McKean, Potter	3 hr
Aug 15, 6:44 PM EDT	Special Weather Statement	CTP	McKean, Potter	31 min
Aug 15, 6:51 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	54 min
Aug 15, 6:55 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Juniata, Mifflin, Perry, Snyder	65 min
Aug 15, 7:08 PM EDT	Special Weather Statement	CTP	Blair	37 min
Aug 15, 7:18 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	72 min
Aug 15, 7:27 PM EDT	Flash Flood Warning	CTP	McKean, Potter	3 hr
Aug 15, 7:33 PM EDT	Severe Thunderstorm Warning	CTP	Potter	57 min
Aug 15, 7:38 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	67 min
Aug 15, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Huntingdon, Juniata, Perry	61 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2019 Every 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.