Alert archive / Pennsylvania / Flash Flood Warnings in 2025

Flash Flood Warning 63, NWS Pittsburgh, PA

June 17, 2025Allegheny County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jun 17, 2025, 12:34 PM EDT for Allegheny County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 17, 2025, 12:34 PM EDT (16:34 UTC)
Expired: Jun 17, 2025, 3:30 PM EDT
In force: 3 hr
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Flood severity: None

County Allegheny County, PA

The radar

The Pittsburgh radar (KPBZ), 21 km from the middle of the area, began a volume at 16:33 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 16, 3:17 PM EDT, 21 hours 17 minutes earlier.

Area forecast discussion, Jun 16, 3:17 PM EDT, 21 hours 17 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, Jun 16, 6:09 PM EDT, 18 hours 25 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 3:17 AM EDT	Flood Watch	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more	27 hr
Jun 17, 12:50 PM EDT	Flash Flood Warning	PBZ	Allegheny, Butler	5 hr
Jun 17, 1:06 PM EDT	Flash Flood Warning	PBZ	Allegheny	4 hr
Jun 17, 2:17 PM EDT	Flash Flood Warning	PBZ	Armstrong, Indiana, Jefferson, Westmoreland	7 hr
Jun 17, 5:44 PM EDT	Flash Flood Warning	PBZ	Clarion, Forest, Mercer, Venango	3 hr
Jun 17, 5:52 PM EDT	Tornado Warning	PBZ	Armstrong, Clarion	23 min
Jun 17, 6:09 PM EDT	Flash Flood Warning	PBZ	Westmoreland	3 hr
Jun 17, 7:13 PM EDT	Flash Flood Warning	PBZ	Armstrong, Clarion, Forest, Indiana, Jefferson	2 hr
Jun 17, 7:30 PM EDT	Flash Flood Warning	PBZ	Fayette, Westmoreland	3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2025 Every flash flood warning in 2025

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.