Alert archive / Pennsylvania / Areal Flood Warnings in 2022

Areal Flood Warning 21, NWS Pittsburgh, PA

May 7, 2022Indiana County, Jefferson County, Pennsylvania

NWS Pittsburgh, PA issued this areal flood warning at May 7, 2022, 12:27 AM EDT for Indiana County, Jefferson County, Pennsylvania. It was in force for 20 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
May 7, 2022, 12:27 AM EDT (04:27 UTC)
Expired
May 7, 2022, 8:00 PM EDT
In force
20 hr
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
None

Counties Indiana County, PA, Jefferson County, PA

The radar

The State College radar (KCCX), 87 km from the middle of the area, began a volume at 04:29 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, 4.5 hours before the alert went out and 104 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 2022-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2022-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
460 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 9:11 PM EDTAreal Flood WarningPBZWestmoreland6 hr
May 6, 10:28 PM EDTAreal Flood WarningPBZWashington5 hr
May 7, 3:52 AM EDTAreal Flood WarningPBZIndiana16 hr
May 7, 6:07 AM EDTAreal Flood WarningPBZBeaver, Butler, Lawrence14 hr
May 6, 8:59 PM EDTAreal Flood WarningPBZBelmont, Monroe, Noble6 hr
May 7, 2:58 AM EDTAreal Flood WarningPBZMonroe, Noble20 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2022Every areal flood warning in 2022

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.