Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS Pittsburgh, PA

September 28, 2021Westmoreland County, Pennsylvania

NWS Pittsburgh, PA issued this special weather statement at Sep 28, 2021, 3:38 AM EDT for Westmoreland County, Pennsylvania. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 28, 2021, 3:38 AM EDT (07:38 UTC)
Expired: Sep 28, 2021, 4:15 AM EDT
In force: 37 min
Issued by: NWS Pittsburgh, PA
Hail: 0.75 in
Wind: 30

County Westmoreland County, PA

The radar

The Pittsburgh radar (KPBZ), 73 km from the middle of the area, began a volume at 07:37 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, 7.6 hours before the alert went out and 61 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: 137 J/kg
Mixed-layer CIN: -355 J/kg
Mixed-layer LCL: 1552 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 528 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 28, 3:02 AM EDT, 36 minutes earlier.

Area forecast discussion, Sep 28, 3:02 AM EDT, 36 minutes before

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In the hours before

Special weather statement, Sep 28, 3:31 AM EDT, 7 minutes before

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Special weather statement, Sep 28, 3:38 AM EDT, 0 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        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.

Issued	Product	Office	Counties	Lasted
Sep 28, 3:31 AM EDT	Special Weather Statement	PBZ	Westmoreland	29 min
Sep 28, 4:04 AM EDT	Special Weather Statement	PBZ	Washington	26 min
Sep 28, 4:40 AM EDT	Special Weather Statement	PBZ	Allegheny	35 min
Sep 28, 5:14 AM EDT	Special Weather Statement	PBZ	Allegheny	31 min
Sep 28, 5:46 AM EDT	Special Weather Statement	PBZ	Allegheny	29 min
Sep 28, 6:01 AM EDT	Special Weather Statement	PBZ	Washington	29 min
Sep 28, 6:20 AM EDT	Special Weather Statement	PBZ	Greene	25 min
Sep 28, 6:46 AM EDT	Special Weather Statement	PBZ	Greene	29 min
Sep 28, 7:09 AM EDT	Special Weather Statement	PBZ	Westmoreland	36 min
Sep 28, 7:18 AM EDT	Special Weather Statement	PBZ	Greene	27 min
Sep 28, 7:44 AM EDT	Special Weather Statement	PBZ	Greene	31 min
Sep 28, 4:44 AM EDT	Special Weather Statement	PBZ	Brooke	31 min
Sep 28, 5:10 AM EDT	Special Weather Statement	PBZ	Ohio	35 min
Sep 28, 5:30 AM EDT	Special Weather Statement	PBZ	Ohio	30 min
Sep 28, 8:13 AM EDT	Special Weather Statement	PBZ	Monongalia	32 min
Sep 28, 9:41 AM EDT	Special Weather Statement	PBZ	Preston	34 min
Sep 28, 10:25 AM EDT	Special Weather Statement	PBZ	Tucker	35 min
Sep 28, 10:49 AM EDT	Severe Thunderstorm Warning	PBZ	Tucker	26 min
Sep 28, 11:14 AM EDT	Special Weather Statement	PBZ	Tucker	31 min
Sep 28, 6:42 AM EDT	Special Weather Statement	PBZ	Monroe	33 min

Nearby

Special Weather Statements in Pennsylvania, 2021 Every special weather statement in 2021

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.