Alert archive / Pennsylvania / Special Weather Statements in 2012
Special Weather Statement, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this special weather statement at Aug 5, 2012, 5:14 PM EDT for Allegheny County, Pennsylvania. It was in force for 61 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
- Aug 5, 2012, 5:14 PM EDT (21:14 UTC)
- Expired
- Aug 5, 2012, 6:15 PM EDT
- In force
- 61 min
- Issued by
- NWS Pittsburgh, PA
County Allegheny County, PA
The radar
The Pittsburgh radar (KPBZ), 43 km from the middle of the area, began a volume at 21:15 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 (KAGC), launched 12:00Z, 9.2 hours before the alert went out and 31 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
- 648 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Aug 5, 3:03 PM EDT, 2 hours 11 minutes earlier.
Area forecast discussion, Aug 5, 3:03 PM EDT, 2 hours 11 minutes before
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</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.
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Please try again in a few minutes.
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</html>Hazardous weather outlook, Aug 5, 3:32 AM EDT, 13 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 332 AM EDT SUN AUG 5 2012 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-060745- 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- 332 AM EDT SUN AUG 5 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. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THE MAIN THREAT WILL BE DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED.
In the hours before
Special weather statement, Aug 5, 11:33 AM EDT, 5 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1133 AM EDT SUN AUG 5 2012
PAZ007>009-014>016-022-051630-
ARMSTRONG PA-BUTLER PA-CLARION PA-FOREST PA-JEFFERSON PA-MERCER PA-
VENANGO PA-
1133 AM EDT SUN AUG 5 2012
...STRONG THUNDERSTORMS WILL AFFECT EXTREME NORTHWESTERN ARMSTRONG...
FOREST...NORTHEASTERN BUTLER...NORTHEASTERN MERCER...NORTHERN
CLARION...NORTHERN JEFFERSON AND VENANGO COUNTIES...
AT 1129 AM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 4 MILES
NORTHEAST OF MAURICE K GODDARD STATE PARK TO 6 MILES SOUTHWEST OF
CLINTONVILLE...MOVING EAST AT 45 MPH.
WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THESE STORMS. IN
ADDITION...HEAVY RAIN WILL POND WATER ON ROADS AND QUICKLY FILL
DITCHES AND SMALL STREAMS.
SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
MAURICE K GODDARD STATE PARK... CLINTONVILLE...
POLK... KENNERDELL... EAU CLAIRE...
SUGARCREEK... COOPERSTOWN... FRANKLIN...
EMLENTON... SENECA... OIL CITY...
VAN...
THIS WILL IMPACT THE FOLLOWING HIGHWAY...
I-80 BETWEEN MILE MARKERS 26 AND 67.
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772.
LAT...LON 4152 7895 4144 7895 4145 7906 4141 7909
4136 7909 4138 7896 4130 7880 4102 7997
4148 8016 4150 8001 4163 7982 4163 7907
34Special weather statement, Aug 5, 11:47 AM EDT, 5 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1147 AM EDT SUN AUG 5 2012 PAZ007-008-013>015-022-051630- ARMSTRONG PA-BUTLER PA-CLARION PA-LAWRENCE PA-MERCER PA-VENANGO PA- 1147 AM EDT SUN AUG 5 2012 ...A STRONG THUNDERSTORM WILL AFFECT EXTREME SOUTHWESTERN CLARION... LAWRENCE...NORTHERN BUTLER...NORTHWESTERN ARMSTRONG...SOUTHEASTERN MERCER AND SOUTHWESTERN VENANGO COUNTIES... AT 1143 AM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF NEW CASTLE...MOVING EAST AT 35 MPH. WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. IN ADDITION...HEAVY RAIN WILL POND WATER ON ROADS AND QUICKLY FILL DITCHES AND SMALL STREAMS. SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE... NEW CASTLE... MCCONNELLS MILL... HARLANSBURG... MORAINE STATE PARK... SLIPPERY ROCK... HOOKER... CLINTONVILLE... EMLENTON... EAU CLAIRE... CHICORA... BRADYS BEND... THIS WILL IMPACT THE FOLLOWING HIGHWAYS... I-376 BETWEEN MILE MARKERS 11 AND 14. I-79 IN PENNSYLVANIA BETWEEN MILE MARKERS 94 AND 111. I-80 BETWEEN MILE MARKERS 34 AND 43. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772. LAT...LON 4124 7974 4096 7960 4086 8035 4104 8044 34
Special weather statement, Aug 5, 5:14 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 514 PM EDT SUN AUG 5 2012 PAZ021-073-052215- ALLEGHENY PA-WESTMORELAND PA- 514 PM EDT SUN AUG 5 2012 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ALLEGHENY AND WESTERN WESTMORELAND COUNTIES... AT 511 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 2 MILES SOUTH OF MCKEES ROCKS...MOVING EAST AT 20 MPH. HEAVY RAIN WILL POND WATER ON ROADS AND QUICKLY FILL DITCHES AND SMALL STREAMS. SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE... MCKEES ROCKS... CARNEGIE... MOUNT LEBANON... NORTH SIDE PITTSBURGH... MOUNT WASHINGTON... PITTSBURGH... MILLVALE... SOUTH SIDE PITTSBURGH... ETNA... OAKLAND... BRENTWOOD... BALDWIN... THIS WILL IMPACT THE FOLLOWING HIGHWAYS... I-279 BETWEEN MILE MARKERS 1 AND 9. I-579 BETWEEN MILE MARKERS 0 AND 1. I-376 BETWEEN MILE MARKERS 64 AND 84. TOLL 66 BETWEEN MILE MARKERS 3 AND 13. I-79 IN PENNSYLVANIA BETWEEN MILE MARKERS 54 AND 58. I-76 BETWEEN MILE MARKERS 51 AND 70. EXCESSIVE RUNOFF WILL ELEVATE SMALL STREAMS. PONDING OF WATER CAN BE EXPECTED IN POOR DRAINAGE AREAS...LOW LYING SPOTS...AND UNDERPASSES. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772. LAT...LON 4048 7946 4024 7952 4036 8013 4054 8008
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 11:04 AM EDT | Special Weather Statement | PBZ | Beaver | 56 min |
| Aug 5, 11:33 AM EDT | Special Weather Statement | PBZ | Clarion, Forest, Venango | 57 min |
| Aug 5, 11:47 AM EDT | Special Weather Statement | PBZ | Lawrence | 43 min |
| Aug 5, 5:52 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Fayette, Indiana, Washington, Westmoreland | 3 hr |
| Aug 5, 6:06 PM EDT | Special Weather Statement | PBZ | Westmoreland | 39 min |
| Aug 5, 12:29 AM EDT | Special Weather Statement | PBZ | Coshocton | 46 min |
| Aug 5, 1:20 AM EDT | Special Weather Statement | PBZ | Coshocton, Tuscarawas | 40 min |
| Aug 5, 1:55 AM EDT | Special Weather Statement | PBZ | Harrison | 35 min |
| Aug 5, 2:32 AM EDT | Special Weather Statement | PBZ | Jefferson | 43 min |
| Aug 5, 10:07 AM EDT | Special Weather Statement | PBZ | Guernsey, Harrison | 53 min |
| Aug 5, 5:21 PM EDT | Special Weather Statement | PBZ | Marshall | 54 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.