Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 201, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 14, 2012, 8:38 PM EDT for Juniata County, Snyder County, Pennsylvania. It was in force for 37 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 14, 2012, 8:38 PM EDT (00:38 UTC)
- Expired
- Aug 14, 2012, 9:15 PM EDT
- In force
- 37 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
Counties Juniata County, PA, Snyder County, PA
The radar
The State College radar (KCCX), 75 km from the middle of the area, began a volume at 00:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 14, 8:55 PM EDT | HAIL 0.88 | Oakland Mills, PA | |
| Aug 14, 9:15 PM EDT | TSTM WND DMG | Mifflintown, PA | TREE ON HOUSE IN MIFFLINTOWN AND NUMEROUS TREES DOWN IN AREA SURROUNDING MIFFLINTOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.6 hours before the alert went out and 183 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
- 833 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1690 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
900
WUUS51 KCTP 150038
SVRCTP
PAC067-109-150115-
/O.NEW.KCTP.SV.W.0201.120815T0038Z-120815T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
838 PM EDT TUE AUG 14 2012
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN JUNIATA COUNTY IN CENTRAL PENNSYLVANIA...
SOUTHERN SNYDER COUNTY IN CENTRAL PENNSYLVANIA...
* UNTIL 915 PM EDT
* AT 835 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR MIFFLINTOWN...MOVING
EAST AT 20 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE
HAIL.
* LOCATIONS IN THE WARNING INCLUDE...
MCALISTERVILLE...
RICHFIELD AND FREMONT...
THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11/15...ROUTE
322/22...ROUTE 522.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGE. MOVE INSIDE A PERMANENT BUILDING
NOW TO BE SAFE FROM LARGE HAIL.
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2.
&&
LAT...LON 4051 7745 4062 7747 4063 7746 4080 7697
4064 7693 4061 7702 4058 7718 4056 7717
4055 7718 4053 7725
TIME...MOT...LOC 0037Z 260DEG 16KT 4063 7737
$$
FORECASTER: DANGELO1 follow-up statement
886
WWUS51 KCTP 150053
SVSCTP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
853 PM EDT TUE AUG 14 2012
PAC067-109-150115-
/O.CON.KCTP.SV.W.0201.000000T0000Z-120815T0115Z/
JUNIATA PA-SNYDER PA-
853 PM EDT TUE AUG 14 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SNYDER AND JUNIATA COUNTIES...
AT 849 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL AND WIND GUSTS TO 60 MPH. THIS STORM WAS LOCATED NEAR
MCALISTERVILLE...OR 14 MILES EAST OF LEWISTOWN...MOVING EAST AT 20
MPH.
LOCATIONS INCLUDED THE WARNING INCLUDE...
MCALISTERVILLE...RICHFIELD...FREMONT...MEISERVILLE AND
THOMPSONTOWN.
THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11/15 NEAR THE
JUNIATA SNYDER COUNTY LINE...ROUTE 322/22 FROM NEAR MIFFLINTOWN TO
EAST OF THOMPSONTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED WEAK ROTATION WITHIN THIS STORM. WHILE
NOT IMMEDIATELY LIKELY...A TORNADO MAY DEVELOP. IF A TORNADO IS
SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2.
&&
LAT...LON 4051 7745 4062 7747 4063 7746 4080 7697
4064 7693 4061 7702 4058 7718 4056 7717
4055 7718 4053 7725
TIME...MOT...LOC 0053Z 260DEG 16KT 4062 7729
$$
FORECASTER: DANGELOThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:05 PM EDT | Special Weather Statement | CTP | Schuylkill | 25 min |
| Aug 14, 8:09 PM EDT | Special Weather Statement | CTP | Dauphin | 36 min |
| Aug 14, 8:17 PM EDT | Special Weather Statement | CTP | Adams | 28 min |
| Aug 14, 8:21 PM EDT | Special Weather Statement | CTP | Juniata | 24 min |
| Aug 14, 8:25 PM EDT | Special Weather Statement | CTP | Clinton | 35 min |
| Aug 14, 8:29 PM EDT | Special Weather Statement | CTP | Franklin, Fulton | 31 min |
| Aug 14, 9:01 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 59 min |
| Aug 14, 9:02 PM EDT | Special Weather Statement | CTP | Franklin | 58 min |
| Aug 14, 9:24 PM EDT | Areal Flood Advisory | CTP | Juniata, Perry, Snyder | 3 hr |
| Aug 14, 9:25 PM EDT | Special Weather Statement | CTP | Adams | 35 min |
| Aug 14, 9:31 PM EDT | Special Weather Statement | CTP | Cumberland | 44 min |
| Aug 14, 9:33 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 57 min |
| Aug 14, 9:56 PM EDT | Special Weather Statement | CTP | Dauphin | 34 min |
| Aug 14, 10:12 PM EDT | Flash Flood Warning | CTP | Cumberland, Dauphin, Perry | 3 hr |
| Aug 14, 10:43 PM EDT | Special Weather Statement | CTP | Dauphin, Lebanon, York | 62 min |
| Aug 14, 11:50 PM EDT | Special Weather Statement | CTP | Lancaster | 40 min |
| Aug 15, 6:12 PM EDT | Special Weather Statement | CTP | Cameron | 63 min |
| Aug 15, 6:42 PM EDT | Special Weather Statement | CTP | Mifflin | 33 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2012Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.