Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Pittsburgh, PA

July 1, 2012Mercer County, Pennsylvania

NWS Pittsburgh, PA issued this special weather statement at Jul 1, 2012, 9:32 PM EDT for Mercer County, Pennsylvania. It was in force for 58 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
Jul 1, 2012, 9:32 PM EDT (01:32 UTC)
Expired
Jul 1, 2012, 10:30 PM EDT
In force
58 min
Issued by
NWS Pittsburgh, PA

County Mercer County, PA

The radar

The Pittsburgh radar (KPBZ), 83 km from the middle of the area, began a volume at 01:35 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, 1.5 hours before the alert went out and 97 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 2012-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 334 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 2012-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939587897Sfc1 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
334 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
2439 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jul 1, 9:25 PM EDT, 7 minutes earlier.

Area forecast discussion, Jul 1, 9:25 PM EDT, 7 minutes before
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Hazardous weather outlook, Jul 1, 3:26 AM EDT, 18 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PITTSBURGH PA
326 AM EDT SUN JUL 1 2012

MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-
029-031-073>076-WVZ001>004-012-021>023-041-021200-
GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-
JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO-
FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY-
ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES-
FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION-
MONONGALIA-PRESTON-TUCKER-
326 AM EDT SUN JUL 1 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST
CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST
PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA
AND NORTHERN PANHANDLE OF WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 1, 9:04 PM EDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
904 PM EDT SUN JUL 01 2012

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

0855 PM     TSTM WND DMG     4 NW BOWERSTON          40.47N  81.24W
07/01/2012                   CARROLL            OH   911 CALL CENTER

            TREES DOWN

&&

EVENT NUMBER PBZ1200604

RG
Local storm report, Jul 1, 9:06 PM EDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
906 PM EDT SUN JUL 01 2012

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

0855 PM     TSTM WND DMG     5 NE MINERAL CITY       40.65N  81.29W
07/01/2012                   CARROLL            OH   911 CALL CENTER

            TREES DOWN ON ROUTE 524

&&

EVENT NUMBER PBZ1200605

RG
Special weather statement, Jul 1, 9:20 PM EDT, 12 minutes before
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Local storm report, Jul 1, 9:21 PM EDT, 11 minutes before
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Local storm report, Jul 1, 9:24 PM EDT, 8 minutes before
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Special weather statement, Jul 1, 9:32 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 9:06 PM EDTSevere Thunderstorm WarningPBZWashington39 min
Jul 1, 9:43 PM EDTSpecial Weather StatementPBZGreene, Washington47 min
Jul 1, 10:22 PM EDTSpecial Weather StatementPBZButler38 min
Jul 1, 8:11 PM EDTSpecial Weather StatementPBZCarroll34 min
Jul 1, 8:30 PM EDTSevere Thunderstorm WarningPBZCarroll, Harrison, Jefferson, Tuscarawas60 min
Jul 1, 8:44 PM EDTSevere Thunderstorm WarningPBZCoshocton, Guernsey, Tuscarawas29 min
Jul 2, 2:24 PM EDTHeat AdvisoryPBZBelmont, Coshocton, Guernsey, Monroe, Muskingum, Noble and 1 more6 hr
Jul 2, 3:03 PM EDTHeat AdvisoryPBZBelmont, Coshocton, Guernsey, Monroe, Muskingum, Noble and 1 more28 hr
Jul 1, 9:20 PM EDTSpecial Weather StatementPBZHancock40 min
Jul 1, 10:25 PM EDTSpecial Weather StatementPBZMarion, Monongalia, Preston, Tucker35 min
Jul 1, 11:19 PM EDTSpecial Weather StatementPBZGarrett56 min

Nearby

Special Weather Statements in Pennsylvania, 2012Every special weather statement in 2012

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.