Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS State College, PA

July 4, 2012McKean County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 4, 2012, 11:53 AM EDT for McKean County, Pennsylvania. It was in force for 37 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 4, 2012, 11:53 AM EDT (15:53 UTC)
Expired: Jul 4, 2012, 12:30 PM EDT
In force: 37 min
Issued by: NWS State College, PA

County McKean County, PA

The radar

The State College radar (KCCX), 100 km from the middle of the area, began a volume at 15:56 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 12:00Z, 3.9 hours before the alert went out and 136 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: 748 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 877 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 4, 11:53 AM EDT, 0 minutes earlier.

Area forecast discussion, Jul 4, 11:53 AM EDT, 0 minutes before

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Hazardous weather outlook, Jul 4, 5:17 AM EDT, 6 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
517 AM EDT WED JUL 4 2012

PAZ004>006-010>012-017>019-024>028-033>035-037-041-042-045-050930-
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-
517 AM EDT WED JUL 4 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A LOW PROBABILITY OF SEVERE THUNDERSTORMS THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PAZ036-046-049>053-056>059-063>066-050930-
FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-
COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-YORK-
LANCASTER-
517 AM EDT WED JUL 4 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A LOW PROBABILITY OF SEVERE THUNDERSTORMS THIS AFTERNOON.

HEAT INDEX VALUES WILL APPROACH 100 DEGREES THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

HEAT INDEX VALUES MAY EXCEED 100 DEGREES DURING THE AFTERNOON FROM
THURSDAY THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 4, 11:06 AM EDT, 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1106 AM EDT WED JUL 4 2012

PAZ004-005-041615-
MCKEAN PA-WARREN PA-
1106 AM EDT WED JUL 4 2012

...A LINE OF THUNDERSTORMS WILL AFFECT MCKEAN AND WARREN COUNTIES...

AT 1100 AM EDT...A LINE OF THUNDERSTORMS WERE LOCATED FROM 13 MILES
NORTH OF JAMESTOWN WEST TO 13 MILES WEST OF ELGIN...MOVING SOUTHEAST
AT 35 MPH.

LIGHTNING...SMALL HAIL AND WIND GUSTS TO 40 MPH ARE POSSIBLE WITH
THESE STORMS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING. DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.

THESE STORMS WILL AFFECT SUGAR GROVE...SPRING CREEK...
YOUNGSVILLE...ELDRED AND WETMORE.

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 6...ROUTE 62...
ROUTE 219...STATE ROAD 46...STATE ROAD 59...STATE ROAD 66...STATE
ROAD 446.

LAT...LON 4200 7821 4181 7821 4162 7892 4163 7962
      4200 7961

FORECASTER: RXR

Special weather statement, Jul 4, 11:53 AM EDT, 0 minutes before

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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, 8:37 PM EDT	Severe Thunderstorm Warning	CTP	Warren	38 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, 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

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.