Alert archive / Pennsylvania / Tornado Warnings in 2015

Tornado Warning 9, NWS State College, PA

June 30, 2015Snyder County, Union County, Pennsylvania

NWS State College, PA issued this tornado warning at Jun 30, 2015, 3:28 PM EDT for Snyder County, Union County, Pennsylvania. It was in force for 47 min. 4 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: Jun 30, 2015, 3:28 PM EDT (19:28 UTC)
Expired: Jun 30, 2015, 4:15 PM EDT
In force: 47 min
Issued by: NWS State College, PA
Area: Storm-based polygon

Counties Snyder County, PA, Union County, PA

The radar

The State College radar (KCCX), 90 km from the middle of the area, began a volume at 19:29 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
Jun 30, 3:30 PM EDT	TSTM WND DMG	1 S Troxelville, PA	TREES DOWN
Jun 30, 3:30 PM EDT	TSTM WND DMG	Benfer, PA	NUMEROUS TREES DOWN ALONG BACK MOUNTAIN ROAD
Jun 30, 3:40 PM EDT	TSTM WND DMG	1 N Middleburg, PA	NUMEROUS TREES DOWN ON DADDARIO HILL ROAD
Jun 30, 4:15 PM EDT	HAIL 1	Selinsgrove, PA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 30, 1:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.5 hours before the alert went out and 165 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 600 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 728 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

783 
WFUS51 KCTP 301928
TORCTP
PAC109-119-302015-
/O.NEW.KCTP.TO.W.0009.150630T1928Z-150630T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
328 PM EDT TUE JUN 30 2015

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN UNION COUNTY IN CENTRAL PENNSYLVANIA...
  SNYDER COUNTY IN CENTRAL PENNSYLVANIA...

* UNTIL 415 PM EDT
    
* AT 328 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR TROXELVILLE...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SELINSGROVE...BEAVER SPRINGS...FREMONT...HUMMELS WHARF...
  KRATZERVILLE...KREAMER...MIDDLEBURG...MOUNT PLEASANT MILLS...
  PAXTONVILLE...PENNS CREEK...PORT TREVORTON...SHAMOKIN DAM...
  TROXELVILLE...TYRONE...WINFIELD...BEAVERTOWN...FREEBURG...
  HERNDON...NEW BERLIN AND SELINGSGROVE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING ISSUED
FOR THE SAME AREA.

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4085 7681 4081 7685 4079 7686 4072 7685
      4069 7687 4068 7689 4072 7723 4078 7729
      4086 7726 4095 7687 4089 7683 4088 7680
TIME...MOT...LOC 1928Z 252DEG 24KT 4078 7717 

$$

RXR

1 follow-up statement

680 
WWUS51 KCTP 301955
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
355 PM EDT TUE JUN 30 2015

PAC109-119-302015-
/O.CON.KCTP.TO.W.0009.000000T0000Z-150630T2015Z/
UNION PA-SNYDER PA-
355 PM EDT TUE JUN 30 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR
SOUTHEASTERN UNION AND NORTHEASTERN SNYDER COUNTIES...
    
AT 354 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
KREAMER...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
SELINSGROVE...HUMMELS WHARF...KRATZERVILLE...KREAMER...MIDDLEBURG...
PENNS CREEK...SHAMOKIN DAM...TYRONE...WINFIELD...FREEBURG...
HERNDON...NEW BERLIN AND SELINGSGROVE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4085 7681 4081 7685 4079 7686 4072 7685
      4075 7704 4082 7708 4090 7706 4095 7687
      4089 7683 4088 7680
TIME...MOT...LOC 1954Z 252DEG 24KT 4083 7695 

$$

RXR

The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 9:28 AM EDT	Special Weather Statement	CTP	Sullivan	32 min
Jun 30, 12:00 PM EDT	Special Weather Statement	CTP	Lebanon	60 min
Jun 30, 12:51 PM EDT	Areal Flood Advisory	CTP	Lebanon	3 hr
Jun 30, 1:06 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	54 min
Jun 30, 1:20 PM EDT	Areal Flood Advisory	CTP	Schuylkill	3 hr
Jun 30, 1:23 PM EDT	Areal Flood Advisory	CTP	Blair, Huntingdon	3 hr
Jun 30, 1:35 PM EDT	Areal Flood Advisory	CTP	Lancaster, York	3 hr
Jun 30, 1:54 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	66 min
Jun 30, 1:59 PM EDT	Areal Flood Advisory	CTP	Centre, Huntingdon, Mifflin	3 hr
Jun 30, 2:05 PM EDT	Tornado Warning	CTP	Lancaster	25 min
Jun 30, 2:14 PM EDT	Flash Flood Watch	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	13 hr
Jun 30, 2:26 PM EDT	Flash Flood Warning	CTP	Lancaster, York	3 hr
Jun 30, 2:46 PM EDT	Special Weather Statement	CTP	Juniata	44 min
Jun 30, 2:56 PM EDT	Special Weather Statement	CTP	Adams	49 min
Jun 30, 3:07 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin, Snyder, Union	53 min
Jun 30, 3:43 PM EDT	Special Weather Statement	CTP	Adams	32 min
Jun 30, 3:47 PM EDT	Special Weather Statement	CTP	Schuylkill	43 min
Jun 30, 3:58 PM EDT	Flash Flood Warning	CTP	Schuylkill	3 hr
Jun 30, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	55 min
Jun 30, 4:12 PM EDT	Areal Flood Advisory	CTP	Clearfield, Elk	3 hr
Jun 30, 4:19 PM EDT	Special Weather Statement	CTP	Lebanon	56 min
Jun 30, 4:24 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	66 min
Jun 30, 4:42 PM EDT	Areal Flood Advisory	CTP	Northumberland, Snyder	3 hr
Jun 30, 4:43 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	77 min
Jun 30, 5:04 PM EDT	Areal Flood Advisory	CTP	Lancaster, Lebanon	3 hr
Jun 30, 5:37 PM EDT	Areal Flood Advisory	CTP	Cameron, Clinton, Lycoming, Potter, Tioga	3 hr
Jun 30, 5:53 PM EDT	Special Weather Statement	CTP	Adams	22 min
Jun 30, 6:03 PM EDT	Special Weather Statement	CTP	Centre	27 min
Jun 30, 6:10 PM EDT	Special Weather Statement	CTP	Lancaster	35 min
Jun 30, 7:13 PM EDT	Special Weather Statement	CTP	Union	62 min
Jun 30, 7:29 PM EDT	Special Weather Statement	CTP	Lancaster	76 min
Jun 30, 7:55 PM EDT	Special Weather Statement	CTP	Blair, Cambria	65 min
Jun 30, 7:57 PM EDT	Special Weather Statement	CTP	Lycoming, Mifflin, Montour, Northumberland, Snyder, Sullivan and 1 more	63 min

Nearby

Tornado Warnings in Pennsylvania, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.