Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 112, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 17, 2010, 9:46 PM EDT for Clearfield County, Pennsylvania. It was in force for 44 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 17, 2010, 9:46 PM EDT (01:46 UTC)
- Expired
- Jul 17, 2010, 10:30 PM EDT
- In force
- 44 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
County Clearfield County, PA
The radar
The State College radar (KCCX), 40 km from the middle of the area, began a volume at 01:48 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
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.8 hours before the alert went out and 215 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
- 2602 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 52 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 State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 9:26 PM EDT, 20 minutes earlier.
Area forecast discussion, Jul 17, 9:26 PM EDT, 20 minutes before
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</html>Hazardous weather outlook, Jul 17, 5:44 AM EDT, 16 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 544 AM EDT SAT JUL 17 2010 PAZ004-005-180945- WARREN-MCKEAN- 544 AM EDT SAT JUL 17 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A COLD FRONT PUSHING SOUTHEAST INTO THE REGION SUNDAY EVENING WILL BRING SCATTERED THUNDERSTORMS TO THE AREA. A FEW OF THESE STORMS COULD PRODUCE DAMAGING WIND GUSTS OR LARGE HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ006-010>012-017>019-025>028-034>037-041-042-045-046-049>053- 056>059-063>066-180945- POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE- SOUTHERN CENTRE-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-BEDFORD-FULTON- FRANKLIN-TIOGA-NORTHERN LYCOMING-SULLIVAN-SOUTHERN CLINTON- SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY- DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-YORK-LANCASTER- 544 AM EDT SAT JUL 17 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ024-033-180945- CAMBRIA-SOMERSET- 544 AM EDT SAT JUL 17 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. A COLD FRONT PUSHING SOUTHEAST INTO THE REGION THIS EVENING WILL BRING SCATTERED THUNDERSTORMS TO THE AREA. A FEW OF THESE STORMS COULD PRODUCE DAMAGING WIND GUSTS OR LARGE HAIL. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 17, 7:34 PM EDT, 2 hours 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
734 PM EDT SAT JUL 17 2010
PAZ010-180000-
ELK PA-
734 PM EDT SAT JUL 17 2010
...A STRONG THUNDERSTORM WILL AFFECT WESTERN ELK COUNTY...
AT 732 PM EDT...A STRONG THUNDERSTORM WAS 7 MILES NORTHEAST OF
MARIENVILLE...MOVING EAST AT 35 MPH.
WIND GUSTS TO 50 MPH AND PENNY SIZE HAIL ARE POSSIBLE WITH THIS
STORM. THIS STORM WILL BE NEAR PORTLAND MILLS AROUND 745 PM...RIDGWAY
AROUND 755 PM AND JOHNSONBURG AROUND 800 PM.
THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 219...STATE ROAD
66...STATE ROAD 120...STATE ROAD 255.
LAT...LON 4163 7849 4126 7873 4142 7908 4145 7908
4145 7907 4146 7899 4144 7897 4162 7896
FORECASTER: JUNGSpecial weather statement, Jul 17, 8:03 PM EDT, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
803 PM EDT SAT JUL 17 2010
PAZ010-011-017-180045-
CAMERON PA-CLEARFIELD PA-ELK PA-
803 PM EDT SAT JUL 17 2010
...A STRONG THUNDERSTORM WILL AFFECT ELK...NORTH CENTRAL CLEARFIELD
AND NORTHWESTERN CAMERON COUNTIES...
AT 802 PM EDT...A STRONG THUNDERSTORM WAS NEAR JOHNSONBURG...MOVING
EAST AT 30 MPH.
WIND GUSTS TO 50 MPH AND PENNY SIZE HAIL ARE POSSIBLE WITH THIS
STORM. THIS STORM WILL BE NEAR ST. MARYS AROUND 815 PM...FORCE AROUND
830 PM...ELK RIVER AROUND 835 PM...TRUMAN AROUND 840 PM AND EMPORIUM
AROUND 845 PM.
THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 219...STATE ROAD
120...STATE ROAD 255.
LAT...LON 4162 7849 4161 7849 4161 7843 4162 7842
4162 7820 4160 7818 4115 7832 4140 7883
4162 7873
FORECASTER: JUNGSpecial weather statement, Jul 17, 8:05 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 805 PM EDT SAT JUL 17 2010 PAZ006-037-180045- POTTER PA-TIOGA PA- 805 PM EDT SAT JUL 17 2010 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN POTTER AND NORTHWESTERN TIOGA COUNTIES... AT 802 PM EDT...A STRONG THUNDERSTORM WAS 30 MILES NORTHWEST OF WELLSBORO...MOVING SOUTHEAST AT 35 MPH. WIND GUSTS TO 50 MPH AND PENNY SIZE HAIL ARE POSSIBLE WITH THIS STORM. THIS STORM WILL BE NEAR HARRISON VALLEY AROUND 810 PM... WESTFIELD AROUND 820 PM...KNOXVILLE AROUND 830 PM...ELKLAND AROUND 840 PM AND KEENEYVILLE AROUND 845 PM. THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 6...ROUTE 15. LAT...LON 4168 7722 4199 7784 4200 7783 4201 7708 FORECASTER: JUNG
Special weather statement, Jul 17, 9:37 PM EDT, 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
937 PM EDT SAT JUL 17 2010
PAZ017-180200-
CLEARFIELD PA-
937 PM EDT SAT JUL 17 2010
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CLEARFIELD
COUNTY...
AT 935 PM EDT...A STRONG THUNDERSTORM WAS NEAR PUNXSUTAWNEY...MOVING
SOUTHEAST AT 25 MPH.
WIND GUSTS TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL BE NEAR TROUTVILLE AROUND 945 PM...BURNSIDE AROUND
955 PM AND MAHAFFEY AROUND 1000 PM.
THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 119...ROUTE 219...
ROUTE 322.
LAT...LON 4099 7882 4110 7881 4101 7843 4073 7851
4072 7880 4074 7882
FORECASTER: RXRThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 8:03 PM EDT | Special Weather Statement | CTP | Elk | 42 min |
| Jul 17, 8:05 PM EDT | Special Weather Statement | CTP | Tioga | 40 min |
| Jul 17, 8:11 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 34 min |
| Jul 17, 9:37 PM EDT | Special Weather Statement | CTP | Clearfield | 23 min |
| Jul 17, 10:13 PM EDT | Special Weather Statement | CTP | Cambria | 47 min |
| Jul 17, 10:15 PM EDT | Special Weather Statement | CTP | Potter | 45 min |
| Jul 17, 10:17 PM EDT | Special Weather Statement | CTP | Elk | 43 min |
| Jul 17, 10:20 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 55 min |
| Jul 17, 10:24 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 66 min |
| Jul 17, 10:29 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 57 min |
| Jul 17, 10:49 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, McKean, Potter | 41 min |
| Jul 17, 11:20 PM EDT | Special Weather Statement | CTP | Potter | 25 min |
| Jul 17, 11:50 PM EDT | Special Weather Statement | CTP | Tioga | 25 min |
| Jul 18, 12:06 AM EDT | Special Weather Statement | CTP | Cameron, Elk | 24 min |
| Jul 18, 1:16 AM EDT | Special Weather Statement | CTP | Cambria | 29 min |
| Jul 18, 1:17 AM EDT | Special Weather Statement | CTP | Potter | 28 min |
| Jul 18, 1:42 AM EDT | Special Weather Statement | CTP | Blair, Cambria | 48 min |
| Jul 18, 1:45 AM EDT | Special Weather Statement | CTP | Potter | 30 min |
| Jul 18, 2:44 AM EDT | Special Weather Statement | CTP | Cameron | 46 min |
| Jul 18, 3:42 AM EDT | Special Weather Statement | CTP | Clinton | 48 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.