Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 149, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jul 23, 2008, 1:42 PM EDT for Indiana County, Westmoreland County, Pennsylvania. It was in force for 63 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
- Jul 23, 2008, 1:42 PM EDT (17:42 UTC)
- Expired
- Jul 23, 2008, 2:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
Counties Indiana County, PA, Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 80 km from the middle of the area, began a volume at 17:43 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 5.7 hours before the alert went out and 234 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
- 156 J/kg
- Mixed-layer CIN
- -226 J/kg
- Mixed-layer LCL
- 992 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 Jul 23, 1:38 PM EDT, 4 minutes earlier.
Area forecast discussion, Jul 23, 1:38 PM EDT, 4 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 23, 5:04 AM EDT, 8 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 504 AM EDT WED JUL 23 2008 MDZ001-PAZ008-009-014>016-021>023-029>032-WVZ021>023-041-240915- GARRETT-VENANGO-FOREST-BUTLER-CLARION-JEFFERSON PA-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-WESTMORELAND-GREENE-FAYETTE-MARION- MONONGALIA-PRESTON-TUCKER- 504 AM EDT WED JUL 23 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY. THE PRIMARY SEVERE WEATHER THREAT WILL BE DAMAGING THUNDERTORM WINDS AND A CHANCE OF LARGE HAIL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. OHZ039>041-048>050-057>059-068-069-PAZ007-013-020-WVZ001>004-012- 240915- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-LAWRENCE-BEAVER- HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL- 504 AM EDT WED JUL 23 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR 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...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 23, 9:11 AM EDT, 4 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 911 AM EDT WED JUL 23 2008 MDZ001-WVZ023-041-231530- GARRETT-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...KINGWOOD... TERRA ALTA...PARSONS...DAVIS...THOMAS 911 AM EDT WED JUL 23 2008 SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE TO CROSS PRESTON...GARRETT...AND TUCKER COUNTIES FOR THE REMAINDER OF THIS MORNING. ADDITIONAL RAINFALL OF ONE HALF TO LOCALLY ONE INCH IS POSSIBLE. TRAVELERS SHOULD BE ALERT FOR RAPID REDUCTIONS IN VISIBILITY...AND FOR PONDING OF WATER ON ROADWAYS.
Special weather statement, Jul 23, 11:48 AM EDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1148 AM EDT WED JUL 23 2008 PAZ014-015-021-022-029>032-WVZ003-004-012-231700- BUTLER-CLARION-ALLEGHENY-ARMSTRONG-WASHINGTON-WESTMORELAND-GREENE- FAYETTE-OHIO-MARSHALL-WETZEL- INCLUDING THE CITIES OF...BUTLER...ZELIENOPLE...CLARION... PITTSBURGH METRO AREA...KITTANNING...FORD CITY...LEECHBURG... FREEPORT...APOLLO...WASHINGTON...CANONSBURG...DONORA... CALIFORNIA...CHARLEROI...MONONGAHELA...MCMURRAY...GREENSBURG... NEW KENSINGTON...JEANNETTE...LATROBE...MONESSEN...WAYNESBURG... FAIRDALE...UNIONTOWN...CONNELLSVILLE...OHIOPYLE...WHEELING... MOUNDSVILLE...NEW MARTINSVILLE 1148 AM EDT WED JUL 23 2008 A LINE OF SHOWERS AND ISOLATED THUNDERSTORMS WILL MOVE EAST AT 20 MPH EXTENDING FROM ARMSTRONG COUNTY PENNSYLVANIA SOUTH TO WETZEL COUNTY WEST VIRGINIA...INCLUDING THE PITTSBURGH METRO AREA. EXPECT BRIEF HEAVY RAIN...WIND GUSTS TO 30 MPH...AND OCCASIONAL LIGHTNING STRIKES.
Special weather statement, Jul 23, 11:59 AM EDT, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1159 AM EDT WED JUL 23 2008 PAZ014-015-021-022-029>032-WVZ003-004-012-231700- BUTLER-CLARION-ALLEGHENY-ARMSTRONG-WASHINGTON-WESTMORELAND-GREENE- FAYETTE-OHIO-MARSHALL-WETZEL- INCLUDING THE CITIES OF...BUTLER...ZELIENOPLE...CLARION... PITTSBURGH METRO AREA...KITTANNING...FORD CITY...LEECHBURG... FREEPORT...APOLLO...WASHINGTON...CANONSBURG...DONORA... CALIFORNIA...CHARLEROI...MONONGAHELA...MCMURRAY...GREENSBURG... NEW KENSINGTON...JEANNETTE...LATROBE...MONESSEN...WAYNESBURG... FAIRDALE...UNIONTOWN...CONNELLSVILLE...OHIOPYLE...WHEELING... MOUNDSVILLE...NEW MARTINSVILLE 1159 AM EDT WED JUL 23 2008 A LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE EAST AT 20 MPH EXTENDING FROM ARMSTRONG COUNTY PENNSYLVANIA SOUTH TO WETZEL COUNTY WEST VIRGINIA...INCLUDING THE PITTSBURGH METRO AREA. EXPECT BRIEF HEAVY RAIN...WIND GUSTS TO 40 MPH...AND PEA SIZED HAIL.
Special weather statement, Jul 23, 1:03 PM EDT, 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 103 PM EDT WED JUL 23 2008 PAZ015-016-021>023-029>032-WVZ012-022-231815- CLARION-JEFFERSON PA-ALLEGHENY-ARMSTRONG-INDIANA-WASHINGTON- WESTMORELAND-GREENE-FAYETTE-WETZEL-MONONGALIA- INCLUDING THE CITIES OF...CLARION...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...PITTSBURGH METRO AREA...KITTANNING... FORD CITY...LEECHBURG...FREEPORT...APOLLO...INDIANA... WASHINGTON...CANONSBURG...DONORA...CALIFORNIA...CHARLEROI... MONONGAHELA...MCMURRAY...GREENSBURG...NEW KENSINGTON... JEANNETTE...LATROBE...MONESSEN...WAYNESBURG...FAIRDALE... UNIONTOWN...CONNELLSVILLE...OHIOPYLE...NEW MARTINSVILLE... MORGANTOWN 103 PM EDT WED JUL 23 2008 A LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE EAST AT 20 MPH EXTENDING FROM JEFFERSON COUNTY PENNSYLVANIA SOUTH TO WETZEL COUNTY WEST VIRGINIA. THE STRONGER STORMS ARE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH AND DIME SIZED HAIL. RAINFALL OF ONE HALF TO ONE INCH IS LIKELY WITH THESE STORMS...PRODUCING SIGNIFICANT PONDING OF WATER ON ROADWAYS.
Local storm report, Jul 23, 1:31 PM EDT, 11 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 8:04 PM EDT | Tornado Warning | PBZ | Beaver, Lawrence | 41 min |
| Jul 22, 8:27 PM EDT | Tornado Warning | PBZ | Beaver, Butler, Lawrence | 48 min |
| Jul 23, 1:13 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Jul 23, 2:00 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 60 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008
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.