Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 101, NWS Pittsburgh, PA

June 25, 2013Mercer County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 25, 2013, 9:34 PM EDT for Mercer County, Pennsylvania. It was in force for 56 min. 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 25, 2013, 9:34 PM EDT (01:34 UTC)
Expired: Jun 25, 2013, 10:30 PM EDT
In force: 56 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon

County Mercer County, PA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 25, 3:37 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 1.6 hours before the alert went out and 100 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: 300 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 422 m²/s²
0-3 km storm-relative helicity: 286 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 25, 7:41 PM EDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jun 25, 7:41 PM EDT, 1 hour 53 minutes before

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Hazardous weather outlook, Jun 25, 4:46 PM EDT, 4 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PITTSBURGH PA
ISSUED BY NATIONAL WEATHER SERVICE CHARLESTON WV
446 PM EDT TUE JUN 25 2013

MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-
029-031-073>076-WVZ001>004-012-021>023-041-262100-
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-
446 PM EDT TUE JUN 25 2013

...SEVERE THUNDERSTORM WATCH 362 IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

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...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SLIGHT RISK FOR SEVERE STORMS ON WEDNESDAY. THE MAIN THREAT WILL
BE LARGE HAIL AND DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jun 25, 9:23 PM EDT, 11 minutes before

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Local storm report, Jun 25, 9:25 PM EDT, 9 minutes before

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Local storm report, Jun 25, 9:26 PM EDT, 8 minutes before

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Local storm report, Jun 25, 9:27 PM EDT, 7 minutes before

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Local storm report, Jun 25, 9:30 PM EDT, 4 minutes before

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Local storm report, Jun 25, 9:33 PM EDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 8:00 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington	45 min
Jun 25, 10:12 PM EDT	Special Weather Statement	PBZ	Venango	63 min
Jun 25, 10:27 PM EDT	Special Weather Statement	PBZ	Armstrong	63 min
Jun 25, 10:34 PM EDT	Special Weather Statement	PBZ	Beaver	56 min
Jun 25, 10:52 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	38 min
Jun 25, 11:01 PM EDT	Special Weather Statement	PBZ	Jefferson	59 min
Jun 25, 11:09 PM EDT	Special Weather Statement	PBZ	Armstrong, Beaver, Butler	81 min
Jun 26, 12:06 AM EDT	Special Weather Statement	PBZ	Allegheny	69 min
Jun 26, 12:50 AM EDT	Areal Flood Warning	PBZ	Allegheny, Beaver, Washington, Westmoreland	6 hr
Jun 26, 1:45 AM EDT	Severe Thunderstorm Warning	PBZ	Washington	60 min
Jun 26, 11:34 AM EDT	Flash Flood Watch	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	14 hr
Jun 25, 8:23 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Muskingum	52 min
Jun 25, 8:29 PM EDT	Severe Thunderstorm Warning	PBZ	Guernsey, Muskingum, Noble	46 min
Jun 25, 9:16 PM EDT	Special Weather Statement	PBZ	Guernsey	29 min
Jun 25, 9:20 PM EDT	Severe Thunderstorm Warning	PBZ	Guernsey, Harrison, Noble	55 min
Jun 25, 9:49 PM EDT	Special Weather Statement	PBZ	Carroll, Tuscarawas	41 min
Jun 25, 10:56 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Harrison, Jefferson, Tuscarawas	49 min
Jun 25, 11:43 PM EDT	Special Weather Statement	PBZ	Jefferson	62 min
Jun 26, 12:02 AM EDT	Severe Thunderstorm Warning	PBZ	Harrison, Tuscarawas	43 min
Jun 26, 12:20 AM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Harrison, Jefferson	55 min
Jun 26, 12:28 AM EDT	Special Weather Statement	PBZ	Guernsey	62 min
Jun 26, 1:04 AM EDT	Special Weather Statement	PBZ	Coshocton	56 min
Jun 26, 1:21 AM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Harrison, Jefferson	39 min
Jun 26, 1:34 AM EDT	Special Weather Statement	PBZ	Harrison	56 min
Jun 26, 2:37 AM EDT	Special Weather Statement	PBZ	Harrison	38 min
Jun 26, 3:16 AM EDT	Special Weather Statement	PBZ	Belmont, Harrison	44 min
Jun 26, 11:37 AM EDT	River Flood Watch	PBZ	Tuscarawas	10 hr
Jun 26, 8:03 AM EDT	Special Weather Statement	PBZ	Tucker	42 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2013 Every severe thunderstorm warning in 2013

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.