Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 170, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 10, 2008, 5:10 PM EDT for Lancaster County, York County, Pennsylvania. It was in force for 35 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 10, 2008, 5:10 PM EDT (21:10 UTC)
- Expired
- Aug 10, 2008, 5:45 PM EDT
- In force
- 35 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
Counties Lancaster County, PA, York County, PA
The radar
The Sterling radar (KLWX), 141 km from the middle of the area, began a volume at 21:10 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 |
|---|---|---|---|
| Aug 10, 1:36 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.2 hours before the alert went out and 139 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
- 771 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 923 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 Aug 10, 4:56 PM EDT, 14 minutes earlier.
Area forecast discussion, Aug 10, 4:56 PM EDT, 14 minutes before
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</html>Hazardous weather outlook, Aug 10, 2:08 PM EDT, 3 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 208 PM EDT SUN AUG 10 2008 PAZ035-036-056>059-063>066-111815- FULTON-FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS- YORK-LANCASTER- 208 PM EDT SUN AUG 10 2008 ...SEVERE THUNDERSTORM WATCH 818 IN EFFECT UNTIL 7 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. A COLD FRONT IS EXPECTED TO TRIGGER SCATTERED TO NUMEROUS STRONG TO SEVERE THUNDERSTORMS FROM THIS AFTERNOON INTO TONIGHT. THE PRIMARY SEVERE WEATHER THREATS INCLUDE LARGE HAIL AND DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO REPORT ANY SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. PAZ004>006-010>012-017>019-027-028-037-041-042-045-046-049>053- 111815- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-MIFFLIN-JUNIATA-TIOGA- NORTHERN LYCOMING-SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION- SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA- 208 PM EDT SUN AUG 10 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT A COLD FRONT IS EXPECTED TO TRIGGER SCATTERED TO NUMEROUS STRONG TO SEVERE THUNDERSTORMS FROM LATE THIS AFTERNOON INTO TONIGHT. THE PRIMARY SEVERE WEATHER THREATS INCLUDE LARGE HAIL AND DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED FROM LATER THIS AFTERNOON INTO EARLY TONIGHT. PAZ024>026-033-034-111815- CAMBRIA-BLAIR-HUNTINGDON-SOMERSET-BEDFORD- 208 PM EDT SUN AUG 10 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON THROUGH THE EVENING HOURS. SOME STORMS MAY PRODUCE SMALL HAIL AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED FROM LATER THIS AFTERNOON INTO EARLY TONIGHT. GARTNER
In the hours before
Special weather statement, Aug 10, 3:10 PM EDT, 2 hours before
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</html>Special weather statement, Aug 10, 3:43 PM EDT, 1 hour 27 minutes before
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</html>Local storm report, Aug 10, 3:57 PM EDT, 1 hour 13 minutes before
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</html>Local storm report, Aug 10, 4:07 PM EDT, 1 hour 3 minutes before
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</html>Special weather statement, Aug 10, 4:18 PM EDT, 52 minutes before
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</html>Special weather statement, Aug 10, 5:01 PM EDT, 9 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 |
|---|---|---|---|---|
| Aug 10, 12:59 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 61 min |
| Aug 10, 1:21 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 54 min |
| Aug 10, 2:11 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin, York | 64 min |
| Aug 10, 2:19 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 32 min |
| Aug 10, 2:32 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 58 min |
| Aug 10, 3:12 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Lancaster, Lebanon, York | 63 min |
| Aug 10, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Lancaster, Lebanon, York | 63 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.