Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 127, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 30, 2015, 6:30 PM EDT for Allegheny County, Westmoreland County, Pennsylvania. It was in force for 30 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 30, 2015, 6:30 PM EDT (22:30 UTC)
- Expired
- Jun 30, 2015, 7:00 PM EDT
- In force
- 30 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Allegheny County, PA, Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 45 km from the middle of the area, began a volume at 22:31 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 30, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Pittsburgh, PA (KAGC), launched 12:00Z, 10.5 hours before the alert went out and 32 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.
- Mixed-layer CAPE
- 38 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 606 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 30, 6:11 PM EDT, 19 minutes earlier.
Area forecast discussion, Jun 30, 6:11 PM EDT, 19 minutes before
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</html>Hazardous weather outlook, Jun 30, 2:17 PM EDT, 4 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 217 PM EDT TUE JUN 30 2015 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-011830- 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- 217 PM EDT TUE JUN 30 2015 ...SEVERE THUNDERSTORM WATCH 371 IN EFFECT UNTIL 8 PM EDT THIS EVENING... 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. 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, Jun 30, 5:19 PM EDT, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
519 PM EDT TUE JUN 30 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0425 PM TSTM WND DMG 1 NE MOUNT EPHRAIM 39.85N 81.41W
06/30/2015 NOBLE OH 911 CALL CENTER
ONE TREE REPORTED DOWN ON SENECA LAKE ROAD BETWEEN
ROUTE 566 AND MT EPHRAIM
&&
EVENT NUMBER PBZ1502037
AMILLERSpecial weather statement, Jun 30, 5:32 PM EDT, 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
532 PM EDT TUE JUN 30 2015
PAZ013-014-020-302200-
LAWRENCE-BUTLER-BEAVER-
532 PM EDT TUE JUN 30 2015
...A STRONG THUNDERSTORM WILL AFFECT NORTHERN BEAVER...SOUTHWESTERN
BUTLER AND SOUTHEASTERN LAWRENCE COUNTIES...
AT 532 PM EDT...A STRONG THUNDERSTORM WAS OVER OHIOVILLE...OR NEAR
BEAVER FALLS...MOVING EAST AT 35 MPH.
WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
CRANBERRY...BEAVER FALLS...MONACA...ECONOMY...ELLWOOD CITY...NEW
BRIGHTON...BEAVER...ZELIENOPLE...ROCHESTER...OHIOVILLE...SEVEN
FIELDS...MIDLAND...INDUSTRY...EVANS CITY...MARS...SHIPPINGPORT...
PATTERSON TOWNSHIP...CONWAY...BIG BEAVER AND FREEDOM.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 11 AND 28.
INTERSTATE 79 IN PENNSYLVANIA BETWEEN MILE MARKERS 78 AND 95.
INTERSTATE 376 IN PENNSYLVANIA BETWEEN MILE MARKERS 31 AND 40.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
LAT...LON 4093 8007 4068 7995 4067 8015 4063 8047
4068 8052 4077 8052
TIME...MOT...LOC 2132Z 251DEG 29KT 4071 8043
24Special weather statement, Jun 30, 5:36 PM EDT, 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
536 PM EDT TUE JUN 30 2015
OHZ069-PAZ031-075-WVZ004-012-021-022-302215-
MONROE-GREENE-FAYETTE-MARION-MARSHALL-WETZEL-MONONGALIA-
536 PM EDT TUE JUN 30 2015
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE AREA...
AT 536 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM 6 MILES WEST OF FAIRVIEW TO NEAR MIDDLEBOURNE.
MOVEMENT WAS EAST AT 50 MPH.
WIND GUSTS UP TO 50 MPH AND DIME SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.
LOCATIONS IMPACTED INCLUDE...
MORGANTOWN...FAIRMONT...NEW MARTINSVILLE...WAYNESBURG...WESTOVER...
MANNINGTON...STAR CITY...PLEASANT VALLEY...PADEN CITY...WINFIELD...
FREDERICKTOWN-MILLSBORO...JEFFERSON BORO...FAIRDALE...BARRACKVILLE...
MONONGAH...GRANVILLE...PINE GROVE...FAIRVIEW...HUNDRED AND
JACKSONBURG.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
LAT...LON 3948 8067 3947 8071 3955 8079 3956 8082
3960 8085 3958 8088 3960 8096 3980 8099
4001 8017 3999 8013 4001 8006 3997 8004
3999 7999 4001 7999 4001 7996 3947 7990
3943 8027 3947 8049 3943 8054
TIME...MOT...LOC 2136Z 256DEG 49KT 3975 8091 3944 8087
07Local storm report, Jun 30, 5:57 PM EDT, 33 minutes before
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</html>Special weather statement, Jun 30, 5:58 PM EDT, 32 minutes before
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</html>Local storm report, Jun 30, 6:29 PM EDT, 1 minute before
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 1:02 PM EDT | Areal Flood Advisory | PBZ | Beaver, Butler | 118 min |
| Jun 30, 2:58 PM EDT | Areal Flood Advisory | PBZ | Armstrong, Jefferson | 2 hr |
| Jun 30, 4:55 PM EDT | Special Weather Statement | PBZ | Mercer | 35 min |
| Jun 30, 5:27 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 33 min |
| Jun 30, 5:32 PM EDT | Special Weather Statement | PBZ | Beaver | 28 min |
| Jun 30, 5:36 PM EDT | Special Weather Statement | PBZ | Greene | 39 min |
| Jun 30, 5:54 PM EDT | Areal Flood Advisory | PBZ | Mercer | 3 hr |
| Jun 30, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Butler, Westmoreland | 34 min |
| Jun 30, 5:58 PM EDT | Special Weather Statement | PBZ | Washington | 32 min |
| Jun 30, 6:49 PM EDT | Special Weather Statement | PBZ | Indiana | 26 min |
| Jun 30, 6:52 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Westmoreland | 3 hr |
| Jun 30, 7:01 PM EDT | Special Weather Statement | PBZ | Westmoreland | 29 min |
| Jun 30, 7:27 PM EDT | Special Weather Statement | PBZ | Jefferson | 33 min |
| Jun 30, 7:42 PM EDT | Special Weather Statement | PBZ | Fayette | 18 min |
| Jun 30, 7:48 PM EDT | Special Weather Statement | PBZ | Forest | 42 min |
| Jun 30, 2:38 PM EDT | Special Weather Statement | PBZ | Monroe | 22 min |
| Jun 30, 2:44 PM EDT | Special Weather Statement | PBZ | Coshocton | 31 min |
| Jun 30, 3:04 PM EDT | Special Weather Statement | PBZ | Coshocton | 26 min |
| Jun 30, 3:30 PM EDT | Special Weather Statement | PBZ | Coshocton | 30 min |
| Jun 30, 3:33 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Guernsey, Tuscarawas | 27 min |
| Jun 30, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Guernsey, Harrison, Tuscarawas | 27 min |
| Jun 30, 4:14 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Noble | 31 min |
| Jun 30, 4:31 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Harrison, Jefferson | 29 min |
| Jun 30, 4:34 PM EDT | Special Weather Statement | PBZ | Monroe | 26 min |
| Jun 30, 4:57 PM EDT | Areal Flood Advisory | PBZ | Columbiana | 3 hr |
| Jun 30, 4:58 PM EDT | Special Weather Statement | PBZ | Hancock | 32 min |
| Jun 30, 5:18 PM EDT | Special Weather Statement | PBZ | Hancock | 27 min |
| Jun 30, 6:47 PM EDT | Special Weather Statement | PBZ | Monongalia | 43 min |
| Jun 30, 7:20 PM EDT | Special Weather Statement | PBZ | Preston | 40 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2015Every severe thunderstorm warning in 2015
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.