Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 39, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at May 19, 1997, 6:46 PM EDT for Westmoreland County, Pennsylvania. It was in force for 3 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 19, 1997, 6:46 PM EDT (22:46 UTC)
- Expired
- May 19, 1997, 9:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
County Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 68 km from the middle of the area, began a volume at 22:49 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 |
|---|---|---|---|
| May 19, 5:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 10.8 hours before the alert went out and 55 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
- 10 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Local storm report, May 19, 5:32 PM EDT, 1 hour 14 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH, PA
532 PM EDT MON MAY 19 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0527 PM SEWICKLEY HEIGHTS PA WIND GUST 66 MPH.
05/19/97 ALLEGHENYLocal storm report, May 19, 5:33 PM EDT, 1 hour 13 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH, PA
532 PM EDT MON MAY 19 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0527 PM SEWICKLEY HEIGHTS PA WIND GUST 66 MPH.
05/19/97 ALLEGHENYLocal storm report, May 19, 6:13 PM EDT, 33 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
613 PM EDT MON MAY 19 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0559 PM NEW KENSINGTON PA WIND DAMAGE
05/19/97 WESTMORELAND NUMEROUS TREES AND POWER LINES
BLOWN DOWN.
0556 PM MC CANDLESS TWP PA WIND DAMAGE
05/19/97 ALLEGHENY TREES DOWN SEVERAL LOCATIONS
SUCH AS NORTH PARK.
0606 PM OAKMONT PA 0.75 INCH HAIL
05/19/97 ALLEGHENYLocal storm report, May 19, 6:16 PM EDT, 30 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
613 PM EDT MON MAY 19 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0559 PM NEW KENSINGTON PA WIND DAMAGE
05/19/97 WESTMORELAND NUMEROUS TREES AND POWER LINES
BLOWN DOWN.
0556 PM MC CANDLESS TWP PA WIND DAMAGE
05/19/97 ALLEGHENY l TREES DOWN SEVERAL LOCATIONS
SUCH AS NORTH PARK.
0606 PM OAKMONT PA 0.75 INCH HAIL
05/19/97 ALLEGHENYLocal storm report, May 19, 6:17 PM EDT, 29 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
618 PM EDT MON MAY 19 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0614 PM WHEELING r WV WIND DAMAGE
05/19/97 OHIO TREES DOWN AND WINDOWS BLOWN OUT.Local storm report, May 19, 6:18 PM EDT, 28 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
618 PM EDT MON MAY 19 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0614 PM WHEELING WV WIND DAMAGE
05/19/97 OHIO TREES DOWN AND WINDOWS BLOWN OUT.The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 8:33 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 27 min |
| May 18, 9:19 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 41 min |
| May 18, 11:26 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 64 min |
| May 19, 12:06 AM EDT | Severe Thunderstorm Warning | PBZ | Venango | 69 min |
| May 19, 12:36 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 69 min |
| May 19, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 26 min |
| May 19, 5:24 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 51 min |
| May 19, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 49 min |
| May 19, 6:19 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 41 min |
| May 19, 6:21 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 54 min |
| May 19, 6:37 PM EDT | Flash Flood Warning | PBZ | Allegheny | 53 min |
| May 19, 6:37 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 53 min |
| May 19, 6:40 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| May 19, 6:46 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| May 19, 6:57 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 33 min |
| May 19, 7:07 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 68 min |
| May 19, 7:36 PM EDT | Flash Flood Warning | PBZ | Allegheny | 2 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1997Every severe thunderstorm warning in 1997
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.