Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS State College, PA

July 15, 2012Franklin County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 15, 2012, 4:21 PM EDT for Franklin County, Pennsylvania. It was in force for 54 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 15, 2012, 4:21 PM EDT (20:21 UTC)
Expired: Jul 15, 2012, 5:15 PM EDT
In force: 54 min
Issued by: NWS State College, PA

County Franklin County, PA

The radar

The State College radar (KCCX), 88 km from the middle of the area, began a volume at 20:21 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.4 hours before the alert went out and 144 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: 358 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 24 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.

643 
WWUS81 KCTP 152021
SPSCTP

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
421 PM EDT SUN JUL 15 2012

PAZ026-034>036-152115-
BEDFORD PA-FRANKLIN PA-FULTON PA-HUNTINGDON PA-
421 PM EDT SUN JUL 15 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BEDFORD...
NORTHEASTERN FULTON...NORTHERN FRANKLIN AND SOUTHWESTERN HUNTINGDON
COUNTIES...

AT 416 PM EDT...A STRONG THUNDERSTORM WAS NEAR HOPEWELL...MOVING EAST
AT 30 MPH.

WIND GUSTS TO 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL AFFECT WELLS TANNERY...WATERFALL...FORT LITTLETON...
FANNETTSBURG...WILLOW HILL AND UPPER STRASBURG.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 168 AND 200...I-81 BETWEEN
MILE MARKERS 13 AND 15.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11...ROUTE
30...ROUTE 522.

LAT...LON 4009 7838 4026 7832 4025 7830 4025 7828
      4014 7760 4012 7757 3989 7765

$$

FORECASTER: RHG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 8:41 PM EDT	Areal Flood Advisory	CTP	Somerset	3 hr
Jul 15, 12:08 PM EDT	Special Weather Statement	CTP	McKean	37 min
Jul 15, 12:58 PM EDT	Special Weather Statement	CTP	Bedford, Fulton, Somerset	62 min
Jul 15, 1:00 PM EDT	Special Weather Statement	CTP	McKean	60 min
Jul 15, 1:48 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin, Fulton	57 min
Jul 15, 2:39 PM EDT	Special Weather Statement	CTP	Clinton	66 min
Jul 15, 2:44 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	61 min
Jul 15, 3:11 PM EDT	Special Weather Statement	CTP	Lebanon	64 min
Jul 15, 3:21 PM EDT	Special Weather Statement	CTP	Clearfield	69 min
Jul 15, 3:52 PM EDT	Special Weather Statement	CTP	Lycoming, Sullivan, Union	53 min
Jul 15, 4:14 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	46 min
Jul 15, 4:26 PM EDT	Special Weather Statement	CTP	Blair, Huntingdon, Juniata, Mifflin, Perry, Snyder	49 min
Jul 15, 4:47 PM EDT	Special Weather Statement	CTP	Columbia, Montour, Northumberland, Schuylkill, Union	58 min
Jul 15, 4:51 PM EDT	Special Weather Statement	CTP	Sullivan	39 min
Jul 15, 5:40 PM EDT	Special Weather Statement	CTP	Columbia, Northumberland, Schuylkill, Snyder	35 min
Jul 15, 5:48 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Schuylkill, Snyder	57 min
Jul 15, 5:56 PM EDT	Special Weather Statement	CTP	Franklin, Fulton	64 min
Jul 15, 6:48 PM EDT	Special Weather Statement	CTP	Lebanon	27 min
Jul 15, 7:17 PM EDT	Special Weather Statement	CTP	Dauphin, Lebanon, Perry	43 min
Jul 15, 7:42 PM EDT	Special Weather Statement	CTP	Adams, Cumberland, York	63 min

Nearby

Special Weather Statements in Pennsylvania, 2012 Every special weather statement 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.