Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 190, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 8, 2007, 1:47 PM EDT for Fayette County, Pennsylvania. It was in force for 58 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
- Aug 8, 2007, 1:47 PM EDT (17:47 UTC)
- Expired
- Aug 8, 2007, 2:45 PM EDT
- In force
- 58 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Counties, with a storm outline in the text
County Fayette County, PA
The radar
The Pittsburgh radar (KPBZ), 84 km from the middle of the area, began a volume at 17:49 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 nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.8 hours before the alert went out and 67 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
- 1832 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
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 Aug 8, 10:40 AM EDT, 3 hours 7 minutes earlier.
Area forecast discussion, Aug 8, 10:40 AM EDT, 3 hours 7 minutes before
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</html>Hazardous weather outlook, Aug 8, 1:29 PM EDT, 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 129 PM EDT WED AUG 8 2007 OHZ039>041-048>050-057>059-068-069-PAZ020-021-029>032-WVZ001>004-012- 021-022-091730- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-BEAVER-ALLEGHENY-WASHINGTON- WESTMORELAND-GREENE-FAYETTE-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL- MARION-MONONGALIA- 129 PM EDT WED AUG 8 2007 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...SOUTHWEST 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. HEAT ADVISORY. NATIONAL WEATHER SERVICE SAYS HOT AND HUMID CONDITIONS THIS AFTERNOON AND EARLY EVENING WILL PRODUCE HEAT INDICES OF 100 TO 104. THERE IS ALSO A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EARLY TONIGHT. THE PRIME THREAT IS DAMAGING WIND. THE THUNDERSTORMS CAN ALSO PRODUCE HEAVY RAIN. LOCATIONS GETTING MORE THAN 2 INCHES OF RAIN IN A COUPLE HOURS CAN EXPERIENCE FLOODING ALONG SMALL STREAMS AND WHERE DRAINAGE IS POOR. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THURSDAY INTO THURSDAY NIGHT. THE PRIMARY SEVERE THREAT WILL BE DAMAGING THUNDERSTORM WINDS. THE THUNDERSTORMS CAN ALSO PRODUCE HEAVY RAIN. LOCATIONS GETTING MORE THAN 2 INCHES OF RAIN IN A COUPLE HOURS CAN EXPERIENCE FLOODING ALONG SMALL STREAMS AND WHERE DRAINAGE IS POOR. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT AND AGAIN THURSDAY AFTERNOON AND THURSDAY NIGHT. MDZ001-PAZ007>009-013>016-022-023-WVZ023-041-091730- GARRETT-MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-PRESTON-TUCKER- 129 PM EDT WED AUG 8 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...NORTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT THE NATIONAL WEATHER SERVICE SAYS THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EARLY TONIGHT. THE PRIME THREAT IS DAMAGING WIND. THE THUNDERSTORMS CAN ALSO PRODUCE HEAVY RAIN. LOCATIONS GETTING MORE THAN 2 INCHES OF RAIN IN A COUPLE HOURS CAN EXPERIENCE FLOODING ALONG SMALL STREAMS AND WHERE DRAINAGE IS POOR. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THURSDAY INTO THURSDAY NIGHT. THE PRIMARY SEVERE THREAT WILL BE DAMAGING THUNDERSTORM WINDS. THE THUNDERSTORMS CAN ALSO PRODUCE HEAVY RAIN. LOCATIONS GETTING MORE THAN 2 INCHES OF RAIN IN A COUPLE HOURS CAN EXPERIENCE FLOODING ALONG SMALL STREAMS AND WHERE DRAINAGE IS POOR. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT AND AGAIN THURSDAY AFTERNOON AND THURSDAY NIGHT.
In the hours before
Special weather statement, Aug 8, 1:11 PM EDT, 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 111 PM EDT WED AUG 8 2007 PAZ031-032-081830- GREENE-FAYETTE- INCLUDING THE CITIES OF...WAYNESBURG...FAIRDALE...UNIONTOWN... CONNELLSVILLE...OHIOPYLE 111 PM EDT WED AUG 8 2007 THROUGH 230 PM...SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE SOUTHEAST AT 20 MPH ACROSS NORTHEAST GREENE COUNTY AND FAYETTE COUNTY. THE STRONGEST STORM WILL AFFECT ANTRAM BY 120 PM AND FAIRCHANCE BY 2 PM. THIS STORM IS CAPABLE OF PRODUCING WIND GUSTS TO 45 MPH AND RAINFALL OF OVER ONE INCH.
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 1:59 AM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 46 min |
| Aug 8, 10:18 AM EDT | Heat Advisory | PBZ | Allegheny, Beaver, Greene, Washington | 10 hr |
| Aug 8, 2:44 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 61 min |
| Aug 8, 2:49 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 56 min |
| Aug 8, 5:53 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 67 min |
| Aug 8, 4:07 PM EDT | Flash Flood Warning | PBZ | Coshocton | 3 hr |
| Aug 8, 4:40 PM EDT | Flash Flood Warning | PBZ | Tuscarawas | 4 hr |
| Aug 8, 3:19 PM EDT | Severe Thunderstorm Warning | PBZ | Preston | 56 min |
| Aug 8, 3:22 PM EDT | Severe Thunderstorm Warning | PBZ | Marshall | 53 min |
| Aug 8, 4:08 PM EDT | Severe Thunderstorm Warning | PBZ | Wetzel | 67 min |
| Aug 8, 5:50 PM EDT | Severe Thunderstorm Warning | PBZ | Preston | 55 min |
| Aug 8, 6:20 PM EDT | Severe Thunderstorm Warning | PBZ | Tucker | 55 min |
| Aug 8, 6:33 PM EDT | Flash Flood Warning | PBZ | Tucker | 4 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2007Every severe thunderstorm warning in 2007
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.