Alert archive / Pennsylvania / River Flood Warnings in 2023

River Flood Warning 3, NWS State College, PA

December 18, 2023Lancaster County, Pennsylvania

NWS State College, PA issued this river flood warning at Dec 18, 2023, 11:53 AM EST for Lancaster County, Pennsylvania. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Dec 18, 2023, 11:53 AM EST (16:53 UTC)
Expired: Dec 19, 2023, 1:33 AM EST
In force: 14 hr
Issued by: NWS State College, PA
Area: Storm-based polygon
Flood severity: Minor

County Lancaster County, PA

The radar

The Dover AFB radar (KDOX), 152 km from the middle of the area, began a volume at 16:55 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 river

Written for the forecast point Conestoga River at Lancaster (LNCP1). The gauge peaked at 13.24 ft at Dec 18, 2023, 6:00 PM EST.

Action stage: 9 ft
Minor stage: 11 ft
Moderate stage: 13 ft
Major stage: 15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01576500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at Dec 18, 7:22 AM EST, 4 hours 31 minutes earlier.

Area forecast discussion, Dec 18, 7:22 AM EST, 4 hours 31 minutes before

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Hazardous weather outlook, Dec 18, 11:41 AM EST, 12 minutes before

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In the hours before

Local storm report, Dec 18, 7:36 AM EST, 4 hours 17 minutes before

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Local storm report, Dec 18, 7:43 AM EST, 4 hours 10 minutes before

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Local storm report, Dec 18, 7:45 AM EST, 4 hours 8 minutes before

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</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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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 18, 12:37 AM EST	Areal Flood Advisory	CTP	Adams, Columbia, Cumberland, Dauphin, Juniata, Lancaster and 10 more	6 hr
Dec 18, 2:21 AM EST	Areal Flood Warning	CTP	Columbia, Lancaster, Lebanon, Schuylkill, Sullivan, York	14 hr
Dec 18, 5:37 AM EST	River Flood Warning	CTP	Lebanon, Schuylkill	29 hr
Dec 18, 11:08 AM EST	River Flood Warning	CTP	Dauphin, Lebanon	29 hr
Dec 18, 6:22 PM EST	Special Weather Statement	CTP	Cumberland	38 min

Nearby

River Flood Warnings in Pennsylvania, 2023 Every river flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.