Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 85, NWS State College, PA

July 3, 2012Warren County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 3, 2012, 8:37 PM EDT for Warren County, Pennsylvania. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 3, 2012, 8:37 PM EDT (00:37 UTC)
Expired: Jul 3, 2012, 9:15 PM EDT
In force: 38 min
Issued by: NWS State College, PA
Area: Storm-based polygon

County Warren County, PA

The radar

The Buffalo radar (KBUF), 139 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.6 hours before the alert went out and 138 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1428 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

454 
WUUS51 KCTP 040037
SVRCTP
PAC123-040115-
/O.NEW.KCTP.SV.W.0085.120704T0037Z-120704T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
837 PM EDT TUE JUL 3 2012

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN WARREN COUNTY IN NORTH CENTRAL PENNSYLVANIA...

* UNTIL 915 PM EDT

* AT 835 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  COLUMBUS TO HYDETOWN TO ROUSEVILLE...MOVING SOUTHEAST AT 40 MPH.
  THESE STORMS ARE CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. 

* LOCATIONS IN THE WARNING INCLUDE...
  GRAND VALLEY...
  YOUNGSVILLE AND GARLAND...

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 6...ROUTE 62.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CREATE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.

SEVERE THUNDERSTORMS PRODUCE DAMAGE. MOVE INSIDE A PERMANENT BUILDING
NOW TO BE SAFE FROM STRONG WIND GUSTS AND 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 4162 7896 4162 7961 4180 7962 4197 7962
      4200 7960 4200 7953
TIME...MOT...LOC 0037Z 312DEG 36KT 4189 7955 4166 7977
          4151 7998

$$

FORECASTER: LA CORTE

1 follow-up statement

697 
WWUS51 KCTP 040108
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
908 PM EDT TUE JUL 3 2012

PAC123-040115-
/O.CON.KCTP.SV.W.0085.000000T0000Z-120704T0115Z/
WARREN PA-
908 PM EDT TUE JUL 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTH CENTRAL WARREN COUNTY...

AT 904 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING ONE INCH
DIAMETER HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM GARLAND TO 15 MILES SOUTH OF
GARLAND TO 23 MILES SOUTH OF GARLAND TO 32 MILES SOUTH OF GARLAND...
MOVING SOUTHEAST AT 40 MPH.

THE WILL OTHERWISE IMPACT MAINLY RURAL AREAS OF THE INDICATED 
COUNTY.

THIS WILL IMPACT ROUTE 62.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4164 7939 4185 7946 4163 7906 4162 7906
      4162 7940
TIME...MOT...LOC 0107Z 312DEG 36KT 4175 7934 4158 7930
          4145 7939 4135 7962

$$

FORECASTER: LA CORTE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 8:03 PM EDT	Special Weather Statement	CTP	Warren	72 min
Jul 3, 9:50 PM EDT	Special Weather Statement	CTP	Clearfield, Elk	55 min
Jul 3, 10:36 PM EDT	Special Weather Statement	CTP	Cambria, Centre, Clearfield	54 min
Jul 3, 11:36 PM EDT	Special Weather Statement	CTP	Blair, Cambria, Centre, Huntingdon, Mifflin	29 min
Jul 4, 12:07 AM EDT	Special Weather Statement	CTP	Bedford, Franklin, Fulton, Somerset	53 min
Jul 4, 2:27 AM EDT	Special Weather Statement	CTP	Somerset	63 min
Jul 4, 11:06 AM EDT	Special Weather Statement	CTP	McKean, Warren	69 min
Jul 4, 11:27 AM EDT	Severe Thunderstorm Warning	CTP	Warren	48 min
Jul 4, 11:53 AM EDT	Special Weather Statement	CTP	McKean	37 min
Jul 4, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Cambria, Somerset	41 min
Jul 4, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	54 min
Jul 4, 6:16 PM EDT	Special Weather Statement	CTP	Centre	44 min
Jul 4, 6:58 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	50 min
Jul 4, 7:15 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	45 min
Jul 4, 7:33 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Somerset	42 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2012 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.