Alert archive / Pennsylvania / Flash Flood Warnings in 2025

Flash Flood Warning 45, NWS Pittsburgh, PA

June 14, 2025Allegheny County, Washington County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jun 14, 2025, 8:46 PM EDT for Allegheny County, Washington County, Pennsylvania. It was in force for 4 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 14, 2025, 8:46 PM EDT (00:46 UTC)
Expired
Jun 15, 2025, 1:00 AM EDT
In force
4 hr
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
None

Counties Allegheny County, PA, Washington County, PA

The radar

The Pittsburgh radar (KPBZ), 24 km from the middle of the area, began a volume at 00:45 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

Pittsburgh, PA (KPIT), launched 00:00Z, 0.8 hours before the alert went out and 9 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, Pittsburgh, PA at 00:00Z on 2025-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 560 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, Pittsburgh, PA at 00:00Z on 2025-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
560 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
696 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

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 14, 8:41 PM EDT, 5 minutes earlier.

Area forecast discussion, Jun 14, 8:41 PM EDT, 5 minutes before
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Hazardous weather outlook, Jun 14, 8:38 PM EDT, 8 minutes before
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In the hours before

Local storm report, Jun 14, 7:07 PM EDT, 1 hour 39 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
707 PM EDT Sat Jun 14 2025

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

0700 PM     Rain             2 NW Cheat Lake         39.71N 79.87W
06/14/2025  M1.45 Inch       Monongalia         WV   Public

            Rainfall from 8am-7pm.

&&

WM
Local storm report, Jun 14, 7:09 PM EDT, 1 hour 37 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
709 PM EDT Sat Jun 14 2025

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

0542 PM     Rain             1 ESE Star City         39.66N 79.97W
06/14/2025  M1.80 Inch       Monongalia         WV   Trained Spotter

            Rainfall since midnight.

&&

WM
Local storm report, Jun 14, 8:43 PM EDT, 3 minutes before
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<html lang="en">
<head>
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  <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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      <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 Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 8:06 PM EDTFlash Flood WarningPBZWashington5 hr
Jun 15, 3:21 AM EDTFlood WatchPBZAllegheny, Fayette, Greene, Washington, Westmoreland39 hr
Jun 15, 11:53 AM EDTFlash Flood WarningPBZFayette, Westmoreland3 hr
Jun 15, 1:20 PM EDTFlash Flood WarningPBZIndiana, Westmoreland117 min
Jun 15, 1:21 PM EDTFlash Flood WarningPBZFayette, Greene3 hr
Jun 15, 2:41 PM EDTFlash Flood WarningPBZFayette, Washington3 hr
Jun 15, 3:10 PM EDTFlash Flood WarningPBZGreene, Washington3 hr
Jun 15, 3:31 PM EDTFlash Flood WarningPBZAllegheny, Washington, Westmoreland4 hr
Jun 15, 4:11 PM EDTAreal Flood WarningPBZFayette6 hr
Jun 15, 4:18 PM EDTFlash Flood WarningPBZAllegheny, Washington3 hr
Jun 15, 5:06 PM EDTFlash Flood WarningPBZAllegheny, Armstrong, Butler, Indiana, Westmoreland3 hr
Jun 15, 12:07 AM EDTFlash Flood Warning EmergencyCatastrophic damage threatPBZOhio3 hr
Jun 15, 1:25 PM EDTFlash Flood WarningPBZMarion, Monongalia, Preston3 hr
Jun 15, 2:21 PM EDTFlash Flood Warning EmergencyPBZMarion, Monongalia5 hr
Jun 15, 2:39 PM EDTFlash Flood WarningPBZWetzel3 hr
Jun 15, 2:59 PM EDTFlash Flood WarningPBZOhio3 hr
Jun 15, 3:16 PM EDTFlash Flood WarningPBZOhio3 hr
Jun 15, 4:27 PM EDTAreal Flood WarningPBZMarion, Monongalia, Preston6 hr
Jun 15, 5:47 PM EDTAreal Flood WarningPBZOhio3 hr
Jun 15, 7:09 PM EDTAreal Flood WarningPBZMarion, Monongalia5 hr
Jun 15, 1:48 PM EDTFlash Flood WarningPBZBelmont, Monroe, Noble114 min
Jun 15, 1:58 PM EDTFlash Flood WarningPBZBelmont, Harrison83 min
Jun 15, 5:54 PM EDTFlash Flood WarningPBZBelmont, Guernsey, Harrison, Jefferson, Noble3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2025Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.