Alert archive / Pennsylvania / Flash Flood Warnings in 2025

Flash Flood Warning 31, NWS State College, PA

June 18, 2025Clearfield County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jun 18, 2025, 11:20 AM EDT for Clearfield 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 18, 2025, 11:20 AM EDT (15:20 UTC)
Expired: Jun 18, 2025, 2:30 PM EDT
In force: 3 hr
Issued by: NWS State College, PA
Area: Storm-based polygon
Flood severity: None

County Clearfield County, PA

The radar

The State College radar (KCCX), 40 km from the middle of the area, began a volume at 15:19 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 12:00Z, 3.3 hours before the alert went out and 152 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 315 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 491 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 18, 11:00 AM EDT, 20 minutes earlier.

Area forecast discussion, Jun 18, 11:00 AM EDT, 20 minutes before

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Hazardous weather outlook, Jun 17, 10:53 PM EDT, 12 hours 27 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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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
Jun 17, 8:08 PM EDT	Flash Flood Warning	CTP	Bedford, Blair	3 hr
Jun 18, 4:55 PM EDT	Severe Thunderstorm Warning	CTP	Warren	65 min
Jun 18, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Warren	46 min
Jun 18, 5:39 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean, Warren	66 min
Jun 18, 6:56 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	19 min
Jun 18, 7:08 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	52 min
Jun 18, 7:15 PM EDT	Flash Flood Warning	CTP	Clearfield, Elk	2 hr
Jun 18, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	41 min
Jun 18, 7:51 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Clearfield, Clinton, Huntingdon	39 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.