Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS State College, PA

July 2, 2021Union County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 2, 2021, 2:12 PM EDT for Union County, Pennsylvania. It was in force for 48 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: Jul 2, 2021, 2:12 PM EDT (18:12 UTC)
Expired: Jul 2, 2021, 3:00 PM EDT
In force: 48 min
Issued by: NWS State College, PA

County Union County, PA

The radar

The State College radar (KCCX), 85 km from the middle of the area, began a volume at 18:14 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, 6.2 hours before the alert went out and 231 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: 212 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 786 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: -17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 Jul 2, 2:06 PM EDT, 6 minutes earlier.

Area forecast discussion, Jul 2, 2:06 PM EDT, 6 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jul 2, 5:10 AM EDT, 9 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
510 AM EDT Fri Jul 2 2021

PAZ034>036-056-057-059-063>066-030915-
Bedford-Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-
Lancaster-
510 AM EDT Fri Jul 2 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ004>006-010>012-017>019-024>028-033-037-041-042-045-046-049>053-
058-030915-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Juniata-Somerset-Tioga-Northern Lycoming-Sullivan-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Schuylkill-
510 AM EDT Fri Jul 2 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...Saturday through Thursday.

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, Jul 2, 1:05 PM EDT, 1 hour 7 minutes before

Special Weather Statement
National Weather Service State College PA
105 PM EDT Fri Jul 2 2021

PAZ019-045-021730-
Southern Clinton PA-Southern Centre PA-
105 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF SOUTHERN CLINTON AND
SOUTHERN CENTRE COUNTIES UNTIL 130 PM EDT...

At 104 PM EDT, Doppler radar indicated a strong thunderstorm over
Madisonburg and Rebersburg, moving east at 25 mph.

Penny size hail and wind gusts up to 50 mph are possible.

Locations impacted include...
Woodward, Millheim, Aaronsburg and Loganton.

LAT...LON 4110 7726 4098 7721 4090 7729 4089 7753
      4097 7756
TIME...MOT...LOC 1704Z 254DEG 20KT 4095 7746

Dangelo

Special weather statement, Jul 2, 1:49 PM EDT, 23 minutes before

Special Weather Statement
National Weather Service State College PA
149 PM EDT Fri Jul 2 2021

PAZ049-021815-
Union PA-
149 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF UNION COUNTY UNTIL 215
PM EDT...

At 148 PM EDT, Doppler radar indicated a strong thunderstorm just to
the southeast of R.B. Winter State Park, moving east at 15 mph.

Penny size hail is possible.

Locations impacted include...
Mifflinburg, Forest Hill, R.B. Winter State Park and Sand Bridge
State Park.

LAT...LON 4092 7703 4093 7725 4094 7725 4099 7720
      4103 7705
TIME...MOT...LOC 1748Z 263DEG 15KT 4096 7721

Dangelo

Special weather statement, Jul 2, 2:12 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service State College PA
212 PM EDT Fri Jul 2 2021

PAZ049-052-021900-
Union PA-Northumberland PA-
212 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF UNION AND
NORTHUMBERLAND COUNTIES UNTIL 300 PM EDT...

At 211 PM EDT, Doppler radar indicated a strong thunderstorm
near Sand Bridge State Park, moving east at 20 mph.

Penny size hail and a brief wind gust are possible.

This strong thunderstorm will be near...
  Forest Hill around 215 PM EDT.
  Spruce Run Reservoir around 225 PM EDT.
  Linntown around 240 PM EDT.
  New Columbia, West Milton and Montandon around 245 PM EDT.
  Milton and Watsontown around 250 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4096 7714 4101 7716 4110 7686 4102 7680
      4096 7687
TIME...MOT...LOC 1811Z 259DEG 17KT 4099 7709

Dangelo

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 1:05 PM EDT	Special Weather Statement	CTP	Union	25 min
Jul 2, 1:49 PM EDT	Special Weather Statement	CTP	Union	26 min
Jul 2, 2:50 PM EDT	Special Weather Statement	CTP	Potter	25 min
Jul 2, 3:08 PM EDT	Special Weather Statement	CTP	Northumberland	37 min
Jul 2, 3:18 PM EDT	Special Weather Statement	CTP	Montour	27 min
Jul 2, 4:04 PM EDT	Special Weather Statement	CTP	Lebanon	26 min
Jul 2, 4:04 PM EDT	Special Weather Statement	CTP	Tioga	26 min
Jul 2, 4:18 PM EDT	Special Weather Statement	CTP	Columbia	27 min
Jul 2, 4:22 PM EDT	Special Weather Statement	CTP	Lycoming	23 min
Jul 2, 4:26 PM EDT	Special Weather Statement	CTP	Schuylkill	34 min
Jul 2, 4:34 PM EDT	Special Weather Statement	CTP	Tioga	26 min
Jul 2, 4:49 PM EDT	Special Weather Statement	CTP	Lycoming	26 min
Jul 2, 5:05 PM EDT	Special Weather Statement	CTP	Carbon	25 min
Jul 2, 5:52 PM EDT	Special Weather Statement	CTP	Union	38 min
Jul 2, 6:07 PM EDT	Special Weather Statement	CTP	Centre	23 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.