Alert archive / Pennsylvania / Special Weather Statements in 2021
Special Weather Statement, NWS State College, PA
NWS State College, PA issued this special weather statement at Apr 11, 2021, 9:03 PM EDT for York County, Pennsylvania. It was in force for 42 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
- Apr 11, 2021, 9:03 PM EDT (01:03 UTC)
- Expired
- Apr 11, 2021, 9:45 PM EDT
- In force
- 42 min
- Issued by
- NWS State College, PA
County York County, PA
The radar
The Sterling radar (KLWX), 120 km from the middle of the area, began a volume at 01:04 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 00:00Z, 1.1 hours before the alert went out and 121 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.
- Mixed-layer CAPE
- 154 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 2014 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</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 Apr 11, 6:42 PM EDT, 2 hours 21 minutes earlier.
Area forecast discussion, Apr 11, 6:42 PM EDT, 2 hours 21 minutes before
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<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.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Hazardous weather outlook, Apr 11, 3:08 AM EDT, 17 hours 55 minutes before
Hazardous Weather Outlook National Weather Service State College PA 308 AM EDT Sun Apr 11 2021 PAZ004>006-010>012-017>019-024>026-033>035-037-041-042-045-046-049- 051>053-058-120715- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Somerset- Bedford-Fulton-Tioga-Northern Lycoming-Sullivan-Southern Clinton- Southern Lycoming-Union-Montour-Northumberland-Columbia-Schuylkill- 308 AM EDT Sun Apr 11 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...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ027-028-036-050-056-057-059-063>066-120715- Mifflin-Juniata-Franklin-Snyder-Perry-Dauphin-Lebanon-Cumberland- Adams-York-Lancaster- 308 AM EDT Sun Apr 11 2021 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Isolated strong to marginally severe thunderstorms with gusty winds and small hail are possible this afternoon into early evening. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather.
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 8:00 PM EDT | Special Weather Statement | CTP | Perry | 15 min |
| Apr 11, 8:28 PM EDT | Special Weather Statement | CTP | Franklin | 17 min |
| Apr 11, 8:47 PM EDT | Special Weather Statement | CTP | Franklin | 13 min |
| Apr 11, 9:10 PM EDT | Special Weather Statement | CTP | Cumberland | 35 min |
| Apr 11, 9:29 PM EDT | Areal Flood Advisory | CTP | Adams, Cumberland, Lancaster, York | 2 hr |
| Apr 11, 11:28 PM EDT | Areal Flood Advisory | CTP | Lancaster | 2 hr |
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.