Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS State College, PA

September 28, 2021Cambria County, Pennsylvania

NWS State College, PA issued this special weather statement at Sep 28, 2021, 5:36 AM EDT for Cambria County, Pennsylvania. It was in force for 39 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: Sep 28, 2021, 5:36 AM EDT (09:36 UTC)
Expired: Sep 28, 2021, 6:15 AM EDT
In force: 39 min
Issued by: NWS State College, PA
Hail: 0.25 in
Wind: 50

County Cambria County, PA

The radar

The State College radar (KCCX), 96 km from the middle of the area, began a volume at 09:35 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 00:00Z, 9.6 hours before the alert went out and 112 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: 137 J/kg
Mixed-layer CIN: -355 J/kg
Mixed-layer LCL: 1552 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 528 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Sep 28, 4:12 AM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Sep 28, 4:12 AM EDT, 1 hour 24 minutes before

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  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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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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Hazardous weather outlook, Sep 28, 4:19 AM EDT, 1 hour 17 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
419 AM EDT Tue Sep 28 2021

PAZ004>006-012-028-035-037-041-042-045-046-049>053-290830-
Warren-McKean-Potter-Northern Clinton-Juniata-Fulton-Tioga-
Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-Union-
Snyder-Montour-Northumberland-Columbia-
419 AM EDT Tue Sep 28 2021

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...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ010-011-017>019-024>027-033-034-290830-
Elk-Cameron-Clearfield-Northern Centre-Southern Centre-Cambria-Blair-
Huntingdon-Mifflin-Somerset-Bedford-
419 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Isolated hail is possible in scattered thunderstorms this morning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ036-056>059-063>066-290830-
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-
Lancaster-
419 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Isolated hail and gusty winds are possible in strong thunderstorms
this afternoon and early evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Sep 28, 5:36 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service State College PA
536 AM EDT Tue Sep 28 2021

PAZ024-025-033-034-281015-
Bedford PA-Somerset PA-Blair PA-Cambria PA-
536 AM EDT Tue Sep 28 2021

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN BEDFORD...
NORTHEASTERN SOMERSET...SOUTHWESTERN BLAIR AND SOUTHWESTERN CAMBRIA
COUNTIES THROUGH 615 AM EDT...

At 535 AM EDT, Doppler radar was tracking a strong thunderstorm over
Geistown, moving east at 25 mph.

HAZARD...Wind gusts up to 45 mph, heavy rain and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to vegetation possible.

Locations impacted include...
Johnstown, Westmont, Windber, Belmont, Portage, Geistown, Southmont,
Vinco, Dale, East Conemaugh, Osterburg, Salix-Beauty Line Park,
Davidsville, Beaverdale-Lloydell, Paint, Lilly, South Fork, Scalp
Level, Sidman and St. Michael.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4022 7899 4039 7896 4045 7848 4017 7849
TIME...MOT...LOC 0935Z 271DEG 21KT 4032 7884

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

DeVoir

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 28, 5:45 AM EDT	Special Weather Statement	CTP	Blair, Cambria, Huntingdon	45 min
Sep 28, 6:14 AM EDT	Special Weather Statement	CTP	Franklin	46 min
Sep 28, 7:07 AM EDT	Areal Flood Advisory	CTP	Blair, Cambria, Centre, Clearfield	3 hr
Sep 28, 7:43 AM EDT	Special Weather Statement	CTP	Potter	32 min
Sep 28, 7:54 AM EDT	Special Weather Statement	CTP	Tioga	36 min
Sep 28, 8:22 AM EDT	Special Weather Statement	CTP	Tioga	23 min
Sep 28, 8:33 AM EDT	Special Weather Statement	CTP	Clinton	27 min
Sep 28, 8:51 AM EDT	Special Weather Statement	CTP	Tioga	24 min
Sep 28, 8:54 AM EDT	Special Weather Statement	CTP	Mifflin	36 min

Nearby

Special Weather Statements in Pennsylvania, 2021 Every 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.