Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 25, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 7, 2010, 10:46 PM EDT for McKean County, Warren County, Pennsylvania. It was in force for 59 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
- May 7, 2010, 10:46 PM EDT (02:46 UTC)
- Expired
- May 7, 2010, 11:45 PM EDT
- In force
- 59 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
Counties McKean County, PA, Warren County, PA
The radar
The State College radar (KCCX), 125 km from the middle of the area, began a volume at 02:47 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 7, 9:31 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.8 hours before the alert went out and 126 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 951 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 687 m²/s²
- 0-3 km storm-relative helicity
- 1144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 7, 8:31 PM EDT, 2 hours 15 minutes earlier.
Area forecast discussion, May 7, 8:31 PM EDT, 2 hours 15 minutes before
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</html>Hazardous weather outlook, May 7, 9:44 PM EDT, 1 hour 2 minutes before
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Special weather statement, May 7, 10:26 PM EDT, 20 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 10:26 PM EDT | Special Weather Statement | CTP | Warren | 49 min |
| May 7, 11:48 PM EDT | Special Weather Statement | CTP | Cameron, Elk, McKean, Potter | 57 min |
| May 8, 12:43 AM EDT | Special Weather Statement | CTP | Cameron, Potter, Tioga | 47 min |
| May 8, 1:35 AM EDT | Special Weather Statement | CTP | Cameron, Elk | 40 min |
| May 8, 1:54 AM EDT | Special Weather Statement | CTP | Clearfield | 36 min |
| May 8, 1:59 AM EDT | Special Weather Statement | CTP | Clinton, Lycoming, Sullivan | 46 min |
| May 8, 2:10 AM EDT | Special Weather Statement | CTP | Centre | 35 min |
| May 8, 2:27 AM EDT | Special Weather Statement | CTP | Blair, Cambria | 48 min |
| May 8, 2:40 AM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 35 min |
| May 8, 3:06 AM EDT | Special Weather Statement | CTP | Cambria | 9 min |
| May 8, 2:24 PM EDT | Freeze Watch | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 17 more | 14 hr |
| May 8, 3:48 PM EDT | Special Weather Statement | CTP | Centre, Clinton, Lycoming, Mifflin, Sullivan, Union | 27 min |
| May 8, 3:50 PM EDT | Special Weather Statement | CTP | Cameron | 25 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2010Every severe thunderstorm warning in 2010
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.