Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS State College, PA

July 29, 2021Tioga County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 29, 2021, 9:04 PM EDT for Tioga 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
Jul 29, 2021, 9:04 PM EDT (01:04 UTC)
Expired
Jul 29, 2021, 10:00 PM EDT
In force
56 min
Issued by
NWS State College, PA

County Tioga County, PA

The radar

The Binghamton radar (KBGM), 104 km from the middle of the area, began a volume at 01:06 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.1 hours before the alert went out and 167 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, Buffalo Intl Airport, NY at 00:00Z on 2021-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 857 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, Buffalo Intl Airport, NY at 00:00Z on 2021-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
857 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.1

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 29, 7:52 PM EDT, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 29, 7:52 PM EDT, 1 hour 12 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 29, 6:54 PM EDT, 2 hours 10 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>

In the hours before

Local storm report, Jul 29, 3:32 PM EDT, 5 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
332 PM EDT THU JUL 29 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0153 PM     TSTM WND DMG     3 SE GLEN HOPE          40.77N 78.45W
07/29/2021                   CLEARFIELD         PA   UTILITY COMPANY

            TREES ON WIRES.

&&

QRM
Local storm report, Jul 29, 3:33 PM EDT, 5 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
333 PM EDT THU JUL 29 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0222 PM     TSTM WND DMG     3 ESE SEVEN SPRINGS     40.02N 79.24W
07/29/2021                   SOMERSET           PA   911 CALL CENTER

            WIDESPREAD TREES DOWN IN LAUREL HILL STATE
            PARK.

&&

QRM
Special weather statement, Jul 29, 3:50 PM EDT, 5 hours 14 minutes before
Special Weather Statement
National Weather Service State College PA
350 PM EDT Thu Jul 29 2021

PAZ028-056-292015-
Perry PA-Juniata PA-
350 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF PERRY AND JUNIATA
COUNTIES UNTIL 415 PM EDT...

At 350 PM EDT, Doppler radar indicated a strong thunderstorm near
Ickesburg, moving east at 30 mph.

Wind gusts of 50 to 55 mph are possible.

Locations impacted include...
Newport, New Bloomfield, Spruce Hill, Mexico, Ickesburg and Port
Royal.

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 4048 7748 4054 7741 4051 7701 4032 7714
TIME...MOT...LOC 1950Z 285DEG 28KT 4049 7739

Banghoff
Special weather statement, Jul 29, 5:26 PM EDT, 3 hours 38 minutes before
Special Weather Statement
National Weather Service State College PA
526 PM EDT Thu Jul 29 2021

PAZ024-292200-
Cambria PA-
526 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF CAMBRIA COUNTY UNTIL
600 PM EDT...

At 526 PM EDT, Doppler radar indicated a strong thunderstorm near
Belsano, moving southeast at 45 mph.

Wind gusts up to 50 mph are possible.

Locations impacted include...
Ebensburg, Nanty-Glo, Portage, Cresson, Vinco, East Conemaugh,
Salix-Beauty Line Park, Beaverdale-Lloydell, Lilly, South Fork,
Sankertown, Sidman, St. Michael, Dunlo, Ehrenfeld, Belsano, Mundys
Corner, Colver, Spring Hill and Summerhill.

LAT...LON 4059 7887 4046 7855 4045 7856 4043 7855
      4036 7858 4035 7861 4031 7864 4028 7864
      4028 7865 4026 7864 4024 7866 4024 7874
      4040 7897
TIME...MOT...LOC 2126Z 305DEG 39KT 4047 7892

Travis
Special weather statement, Jul 29, 6:08 PM EDT, 2 hours 56 minutes before
Special Weather Statement
National Weather Service State College PA
608 PM EDT Thu Jul 29 2021

PAZ059-066-292300-
Lancaster PA-Lebanon PA-
608 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LANCASTER AND LEBANON
COUNTIES UNTIL 700 PM EDT...

At 607 PM EDT, Doppler radar indicated a strong thunderstorm over
Kleinfeltersville, moving southeast at 35 mph.

Pea size hail and wind gusts of 50 to 55 mph are possible.

Locations impacted include...
Ephrata, New Holland, Denver, Reamstown, Newmanstown, Adamstown,
Richland, Terre Hill, Schaefferstown, Churchtown, Kleinfeltersville,
Bowmansville, Reinholds, Fivepointville, Schoeneck, Blue Ball,
Farmersville, Goodville and White Horse.

LAT...LON 4010 7594 4004 7594 3997 7598 4029 7631
      4038 7626 4036 7623 4036 7620 4031 7614
      4014 7587
TIME...MOT...LOC 2207Z 300DEG 30KT 4029 7622

Travis

Nearby

Special Weather Statements in Pennsylvania, 2021Every 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.